Answer: Option D
Step-by-step explanation: Given: -2x + 14 + 10x = 34
-2x + 10x + 14 = 34
8x + 14 = 34
8x = 34 - 14
8x = 20
divide both sides by 8
8x/8 = 20/8
x = 5/2
Thanks if you can solve this
Answer: It will take 63 minutes for the group to make a wood pile of 45 sticks
Step-by-step explanation:
i hope this helps if so pls mark brainliest !!
1b. Hailey's plane climbed 1,004.7 feet in 59.1 seconds. How fast did her plane climb every second?
Answer:
:)
Step-by-step explanation:
Just divide 1,004.7 by 59.1
MATHS PLEASE HELP!! 100 POINTS
Answer:
in 2014=4100 in 2008=6800 last question=2020
Step-by-step explanation:
multiply (-5+i) and 2i with 2i
2i × 2i = 4i^2 ➡-4
2i × (-5+i) = -10i + 2i^2 ➡-10i -2
then do the division
(-10i -2)/-4 = (5i + 1)/2
Aaron arrives at school late because his car broke down, and therefore, has only 45 minutes to complete a history exam. The exam has two open-ended questions and 30 multiple-choice questions. Each correct open-ended question is worth 20 points, and each multiple-choice question is worth 2 points. He knows that it usually takes him 15 minutes to answer an open-ended question and only 1 minute to answer a multiple-choice question. Assume that for each question Aaron answers, he receives full credit. How many of each type of question should he answer to get maximum possible points?
Aaron should answer 3 open-ended questions and 0 multiple-choice questions to get a maximum of 3 * 20 points/question = 60 points
How to calculate the amount of time it would take AaronAaron has 45 minutes to answer the questions, so he has 45 minutes / 15 minutes/question = 3 open-ended questions that he can answer.
For the remaining questions, he has 45 minutes - (3 * 15 minutes) = 45 minutes - 45 minutes = 0 minutes.
So he cannot answer any more open-ended questions.
He can answer 0 minutes / 1 minute/question = 0 multiple-choice questions.
Therefore, Aaron should answer 3 open-ended questions and 0 multiple-choice questions to get a maximum of 3 * 20 points/question = 60 points.
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Order these numbers from least to greatest.
5.9, 5.64, 5.604, 7.71
Find the total surface area of this cylinder. Give your answer to 1 decimal place. 18 cm 24 cm
Answer:
Step-by-step explanation:
answer 10857.3
If one of the animals below is picked at random, what is the probability that
it is not a flying mammal? Give your answer as a fraction in its simplest
form.
Mammal
Giraffe
Seal
Mouse
Cat
Tiger
Bat
Can fly
Swan
Lizard
Tortoise
Answer:
6/11
Step-by-step explanation:
Mammal - yes
Giraffe - no
Seal - no
Mouse - no
Cat - no
Tiger - no
Bat - yes
Can fly - yes
Swan - yes
Lizard - no
At the point of tangency, a tangent to a circle is to the radius.
At the point of tangency, a tangent to a circle is perpendicular to the radius.
What is tangent of circle?A tangent is a line that extends from a point on the circle to two points that are eternally close to one another. To put it another way, we can say that tangents are lines that precisely cross a circle at a certain location. Where the tangent touches the circle is known as the point of tangency. An angle is tangent to the radius at the point of tangency. This is a key component of geometric constructions and proofs, and as such, it is related to a number of theorems. One by one, we will examine them.
Theorem: 1
By connecting the center with the point of tangency, a radius is produced. A circle's tangent at a given location is perpendicular to its radius. Simply adhere to the diagram below: Here AB⊥OP
Theorem:2
According to this theorem, two tangents traced to a circle from a single exterior point have equal numbers of tangent segments. Line connecting the exterior point and the point of tangency is referred to as a tangent segment.
Hence the theorem of the tangent of circle mentioned above.
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Complete question:
At the point of tangency, a tangent to a circle is ______ to the radius.
rearange so x is independent variable 4x - 6 = -5y + 9
Answer:
4x-6=-5y+9
4×=-5y+9+6
Please answer this question with a decent explanation ty.
The measure of angle R is 16.1°
What is the law of sine?Law of Sines In trigonometry, an equation relating the lengths of the sides of any triangle to the sines of its angles.
Given that, a triangle RST, with one angle S = 39° and RT = 25, ST = 11
We need to measure the angle R,
Using law of sine,
Sin R / TS = Sin T / RS = Sin S / RT
Sin R / 11 = sin 39° / 25
Sin R = 11 × sin 39° / 25
Sin R = 0.2769
R = sin⁻¹(0.2769)
R = 16.1
Hence, the measure of angle R is 16.1°
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15-28i=3l+(4m)i
(find the values of l and m)
Step-by-step explanation: To find the values of l and m, we need to solve the equation 15 - 28i = 3l + (4m)i for l and m.
First, we can move all the terms with i to one side of the equation:
15 = 3l + 4mi
-28i = 4mi
To solve for m, we can divide both sides by 4i:
-28i/4i = m
m = -7
Now that we know the value of m, we can substitute it back into the equation to solve for l:
15 = 3l + 4(-7)i
15 = 3l - 28i
3l = 15 + 28i
To solve for l, we can divide both sides by 3:
l = (15 + 28i)/3
So the values of l and m are l = (15 + 28i)/3 and m = -7
Answer:15
Step-by-step explanation:
what is the domain and range of the mapping diagram ?
Answer:
Below
Step-by-step explanation:
Domain is the 'x' values a function can have for this one {1,3,4,5}
Range is the 'y' values a function has {6,8,10}
HELP ME LIKE THIS IS SO HARD
We can see here that the division expression that is shown in the model is: A. 3 ÷ 2/5
What is division?Division is a mathematical operation that involves splitting a number into equal parts. It is the inverse of multiplication, and can be represented as the division symbol "/" or "÷". The result of division is called a quotient.
Division in mathematics is an arithmetic operation that separates a quantity into equal parts or groups. Division can also be expressed as a fraction or ratio, where the numerator represents the dividend and the denominator represents the divisor.
We see here that:
3 ÷ 2/5 = 3/1 x 5/2 = 15/2
∴ 15/2 = 7.5.
We can see here that the shaped boxes in the diagram are 7 that were fully shaded. The last box was shaped half. This actually shows it is 7.5.
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Triangle ABC ha perimeter 22cm
AB = 8cm
BC =5cm
By caculation deduce whether triangle ABC i a right-angled triangle
Right-angled triangle? Ye/No
Anwer
The Triangle ABC having perimeter 22cm and AB = 8cm and BC =5cm is not a right angled triangle.
A triangle to have a right angle triangle it should follow the basic theorem of Pythagoras,
If perimeter of ΔABC is 22cm
P = AB + BC + AC
22 = 8 + 5 + AC
AC = 9
By using Pythagoras theorem ,
AC² = AB² + BC²
9² = 8² + 5²
81 ≠ 89
Therefore its not a right angle triangle.
A triangle is said to be right-angled if one of its inner angles is 90 degrees, or if any one of its angles is a right angle. The right triangle or 90-degree triangle is another name for this triangle. In trigonometry, the right triangle is significant.
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PLEASE I NEED HELP HURRY
The function f(x) and the number [tex]a[/tex] that satisfies the given equation is:[tex]$$f(x)=x^{3 / 2} \quad \text { and } \quad a=\frac{49}{4} .$$[/tex]
How to obtain the given equation?Let's differentiate both sides of the given equation with respect to [tex]x[/tex] obtain
[tex]\frac{d}{d x}\left[5+\int_a^x \frac{f(t)}{t^2} d t\right]=\frac{d}{d x}[2 \sqrt{x}] .[/tex]
The Fundamental Theorem of Calculus combines the concepts of differentiating a function (calculating the slope or rate of change at any point in time) and integrating a function (calculating the area under a graph, or calculating the cumulative effect ) is a combination of of small contributions).
Using the Fundamental Theorem of Calculus and the Power Rule, we have
[tex]\frac{d}{d x}\left[\int_a^x \frac{f(t)}{t^2} d t\right]=\frac{d}{d x}\left[2 x^{1 / 2}\right][/tex]
Applying the Chain Rule and simplifying, we get
[tex]\frac{f(x)}{x^2}=x^{-1 / 2}[/tex]
Solving for [tex]f(x) \$$, we get $\$ f(x)=x^{\wedge}(3 / 2\}[/tex].
To find a, we can use the given equation with x=1 and simplify:
[tex]$$5+\int_a^1 \frac{f(t)}{t^2} d t=2 \sqrt{1} \Rightarrow \int_a^1 \frac{f(t)}{t^2} d t=-3 .$$[/tex]
Substituting [tex]$ f(x)=\mathrm{x}^{\wedge}[3 / 2\}[/tex], we have
[tex]$$\int_a^1 \frac{f(t)}{t^2} d t=\int_a^1 \frac{t^{3 / 2}}{t^2} d t=\int_a^1 t^{-1 / 2} d t=2(\sqrt{1}-\sqrt{a})=-3$$[/tex]
Solving for a, we obtain [tex]a=\backslash f r a c\{49\}\{4\}[/tex]. Therefore, the function f(x) and the number [tex]a[/tex] that satisfy the given equation are
[tex]$$f(x)=x^{3 / 2} \quad \text { and } \quad a=\frac{49}{4} .$$[/tex]
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List all of the possible rational zeros for each function
f(x)=x^3+6x+2
Answer:
[tex]\sqrt[3]{2}[/tex]
Step-by-step explanation:
Attached is an image of the function graphed. From the image, you can see that the only zero, or x-intercept, is at about -0.327, or [tex]\sqrt[3]{2}[/tex] to be exact.
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GEOMETRY!!!!!!
Triangles ACD and BCD are isosceles. Angle BAC has a measure of 18 degrees and angle BDC has a measure of 48 degrees. Find the measure of Angle ABD.
What is the measure of angle ABD?
_______
Answer:
138°
Step-by-step explanation:
∠BCD and ∠CDB are equivalent, meaning they both are 48°. Together, that is 96°. Subtract 96° from 180° (the measure of all of the inside angles in a triangle added together.) and you get 84°. Subtract 84° from 360° (the number of degrees in a circle) and you get 276°. Divide that by two (∠ABD and ∠ABC) to get 138°.
Drag and drop the correct values
The inequality graph is interpreted to have the equation as;
y > ⁻³/₄x - 3
What is the graph of the Inequality?The general form of the equation of a line in slope intercept form is;
y = mx + c
where;
m is slope
c is y-intercept
From the given graph, the y-intercept is seen to be -3.
The slope is gotten by using two coordinates from the formula;
m = (y₂ - y₁)/(x₂ - x₁)
(0, -3) and (-4,0)
m = (0 - (-3))/(-4 - 0)
m = -3/4
Thus, equation of line is;
y = ⁻³/₄x - 3
Since the upper part of the inequality is shaded and the line is a dashed line, then the symbol is greater than and it is expressed as;
y > ⁻³/₄x - 3
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or gabriel's cafe has regular coffee and decaffeinated coffee. this morning, the cafe served 80 coffees in all, 90% of which were regular. how many regular coffees did the cafe serve?
The cafe served 72 regular coffees.
Coffee Served - CountHere are the steps to find the number of regular coffees served:
Calculate the total number of regular coffees as a percentage of the 80 coffees served in total: 80 x 90% = 72The answer is 72 regular coffees.The method used for this problem is simple arithmetic calculation, specifically percent calculation.
Percent calculation is used to find the proportion of a number in terms of a percent. To perform a percent calculation, you multiply the original number by the percent (expressed as a decimal) and then round the result to the desired number of decimal places. In this case, the original number is 80 and the percent is 90, which we first convert to 0.90 (by dividing by 100).
You could determine that this method was used because the problem statement asked for the proportion of regular coffee in terms of percent (90%) of the total number of coffees served (80). To find this proportion, you needed to multiply 80 by 0.9, which is equivalent to 80 * 90%.
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a hospital is trying to implement a new patient assessment form. they want to first test the usability and efficacy of the form.when determining sample size for the first test, it is most important to:
When determining sample size for the first test, it is most important to Weigh the potential consequences of a test that does not lead to improvement against the belief in success.
When evaluating a patient, a patient assessment form is used to evaluate the patient's potential diagnosis and the appropriate course of therapy. To prevent misdiagnosis and ensure that the right therapy is given, it is crucial to gather relevant data. In order to register patients for operations provided by medical institutions, patient registration forms are utilised. Our free patient registration forms will efficiently capture patient information online, streamlining the registration and onboarding process whether you need to register new patients for your hospital, clinic, health centre, or private practise. Usability testing may find and support data-driven design decisions that have been drawn from practitioner usage of the system in a hectic office setting. Health care safety may be improved by using human factors understanding of HCI design and its effects on human performance.
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graph the system below and write its solution.
y=1/4x-3
-x+4y=-4
Note that you can also answer "No solution" or "Infinitely many" solutions.
We can substitute the first equation into the second to eliminate [tex]y[/tex] and solve for [tex]x[/tex]
[tex]$$\begin{gathered}-x+4\left(\frac{1}{4} x-3\right)=-4 \\\Rightarrow \\-x+x-12=-4 \\\Rightarrow \\-12=-4 \\\Rightarrow \\x=3\end{gathered}$$[/tex]
Define "Infinitely many" solutions?An infinite solution has both sides equal. For example, 6x + 2y - 8 = 12x +4y - 16. If you simplify the equation using an infinite solutions formula or method, you'll get both sides equal, hence, it is an infinite solution. Infinite represents limitless or unboundedness. It is usually represented by the symbol ” ∞ “.
Some equations have infinitely many solutions. In these equations, any value for the variable makes the equation true. You can tell that an equation has infinitely many solutions if you try to solve the equation and get a variable or a number equal to itself.
This system of linear equations can be graphed on a [tex]$x-y$[/tex] plane. The first equation represents a line with slope [tex]\frac{1}{4}[/tex] and [tex]$y$[/tex]-intercept [tex]-3[/tex]. The second equation represents another line with slope [tex]-1[/tex] and [tex]$y$[/tex]-intercept [tex]-4[/tex]. The intersection point of the two lines is the solution to the system of linear equations.
To find the solution, we can substitute the first equation into the second to eliminate [tex]y[/tex] and solve for [tex]x[/tex]
[tex]$$\begin{gathered}-x+4\left(\frac{1}{4} x-3\right)=-4 \\\Rightarrow \\-x+x-12=-4 \\\Rightarrow \\-12=-4 \\\Rightarrow \\x=3\end{gathered}$$[/tex]
We can then use either equation to find the value of [tex]y[/tex]
[tex]$$\begin{gathered}y=\frac{1}{4} x-3 \\\Rightarrow \\y=\frac{1}{4} \cdot 3-3 \\= \\y=-2\end{gathered}$$[/tex]
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Which number line shows the solution to this compound inequality?
3x - 5 > 1 or -2x ≤ -10
The intersection of the graphs of the inequalities is shown by a compound inequality with a "and" in it.
What is meant by compound inequality?When two inequalities are separated by "and" or "or," the result is a compound inequality. The intersection of the graphs of the inequalities is shown by a compound inequality with a "and" in it. A number is a compound inequality solution if it also solves the underlying inequality.
Divide a compound inequality into two individual inequalities before solving it. The solution should either be a union of sets ("or") or an intersection of sets ("and"). Inequalities and the graph should then be solved.
Compound inequality comes in two flavors. Both conjunction and disjunction issues are present. Sometimes, the two simple inequalities in these compound inequalities will be separated by the words AND or OR. When resolving compound "and/or" inequalities, start by resolving each inequality separately.
Therefore, the correct answer is option D.
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Suppose there is a 1.2 F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 55.4 F , what will be the temperature when the plane reaches an altitude of 3000ft?
The temperature when the plane reaches an altitude of 3000ft is 51.8 F
What is a temperature simple definition?Temperature is the degree of hotness or coldness of an object.
Given here: the temperature drops every 1.2 F for every thousand feet ascend.
Thus if the temperature on the ground is 55.4 F
When the plane ascends to 3000 feet the number of temperature drops would be 3 .
Thus drop in temperature is 1.2×3=3.6 F
Therefore the temperature at an altitude at an altitude of 3000 ft. is
55.4-3.6=51.8 F
Hence, The temperature when the plane reaches an altitude of 3000ft is 51.8 F
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The mean score of the students who took a mathematics test was 6. Exactly 60% of the students passed the test. The mean score of the students who passed the test was 8. What was the mean score of the students who failed the test?
mean score of the students who failed the test is 4
Let's assume there were X students who took the test.
Here given that:
The mean score of the students who took a mathematics test was 6.
60% of the students passed the test.
The sum of all their scores was 6× X
X×0.6 of them had a mean score of 8
The sum of the scores of the students who passed the test is 8 ×X×0.6.
The sum of the scores of the students who failed was the total sum minus the sum of the scores of the students who passed, which is
6 × X - 8 × X ×0.6
students who failed the test is, divide by the sum of their scores by the number of students who failed, which is
X - X ×0.6.
The mean score of the students who failed is
(6 ×X - 8 × N ×0.6) / (X - X×0.6)
= (6 × X - 8× X × 0.6) / (X * 0.4)
= 4.
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Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC =11 and DC=5 what is the length of BC in the simplest radical form
Answer:
[tex]The[/tex] [tex]length[/tex] [tex]of[/tex] [tex]BC[/tex] [tex]is[/tex] [tex]\sqrt{55}[/tex] [tex](units)[/tex].
Step-by-step explanation:
Given ABC is a right triangle.
AC is the hypotenuse and BD is the altitude.
AB and BC are legs of the triangle ABC.
AC = 11 and DC = 5
Leg rule of geometric mean theorem:
[tex]\frac{hypotenuse}{leg}=\frac{leg}{part}[/tex]
[tex]\frac{AC}{BC}=\frac{BC}{DC}[/tex]
[tex]\frac{11}{x}=\frac{x}{5}[/tex]
Do cross multiplication.
[tex]11 * 5= x*x[/tex]
[tex]55=x^{2}[/tex]
Taking square root on both sides.
[tex]\sqrt{55} =\sqrt{x^{2} }[/tex]
[tex]\sqrt{55}=x[/tex], [tex]since[/tex] [tex]\sqrt{55}[/tex] [tex]cannot[/tex] [tex]be[/tex] [tex]reduced.[/tex]
The length of BC is [tex]\sqrt{55}[/tex].
Select the equation of the line, in standard form, that passes through (4,2) and is parallel to the line shown on the coordinate grid to the right
The equation of the line that passes through (4,2) and is parallel to the line shown is 3x + y = -10
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
The slope intercept form of a line is:
y = mx + b
where m is the slope and b is the y intercept
Two lines are said to be parallel if they have the same slope.
The line shown passes through point (0, 1) and (-1, -2). Hence:
Slope = (-2 - 1) / (-1 - 0) = 3
The line parallel will also have a slope of 3. It then passes through (4, 2). Hence:
y - y₁ = m(x - x₁)
y - 2 = 3(x - 4)
y = -3x - 10
3x + y = -10
The equation of the line is 3x + y = -10
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Three ballet dancers are positioned on stage.Ann is 3 feet straight behind Elena and 2 feet directly left of Rob.When the music Begins,Ann twirls to robs position,then leaps to Elena’s position,and finally walks back to her original position.How far did Ann travel? If necessary,round to the nearest tenth.
The distance that Ann travelled is; 3.61 ft
How to use Pythagoras theorem?Pythagoras Theorem is defined as the way in which you can find the missing length of a right angled triangle.
Ann and Elena form the vertical leg of a right angle triangle of length = 3ft. Elena and Rob form the opposite side of the right angle triangle of length = 2 ft.
Using the Pythagorean theorem to find the distance that Anna traveled which is the length of the hypotenuse of the right angle triangle; let that length be x. Then:
x = √(3² + 2²)
x = √ 13
x = 3.61 ft
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The escape velocity from a planet of mass M and radius R is v(R) = square root over 2GM/R (square root over the whole thing) where G is the universal gravitational constant. Find the inverse of v(R) as a function of v.
Inverse of v(R) = R/(2Gv^2) where G is the universal gravitational constant and v is the escape velocity.
The equation for the escape velocity from a planet of mass M and radius R is v(R) = √(2GM/R). To find the inverse of v(R), we can start by rearranging the equation to solve for R. We can do this by multiplying both sides of the equation by R, giving us 2GM = Rv(R)^2. Then, we can divide both sides of the equation by 2G, leaving us with R = v(R)^2/2G. Now, we can substitute v for v(R). This gives us R = v^2/2G. To find the inverse of v(R), we can take the reciprocal of both sides, giving us the inverse of v(R) as R/(2Gv^2).
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convert the repeating decimal into a fraction 2.916666666666
Answer:2 45833333333/50000000000
BANQUET A charity is hosting a benefit dinner. They are asking $100 per table plus $40 per person. Nathaniel is purchasing tickets for his friends and does not want to spend more than $250.
Answer:
he would only be able to bring 2 friends
Step-by-step explanation:
250- 100= 150 cost of table
150/ 40=3.75 cost of friends
He was would not be able to bring a .75 of a friend so you would have to round down.