Answer:
A=-3,b=1,C=19
Step-by-step explanation:
y-7=3(x+4)
we will just simplify the bracket like this
y-7=3x+12
y=3x+12+7
y=3x+19
y-3x=19
A=-3,b=1,C=19
if u find the answer correct mark as brainliest
please help Write each number as a percent. 1/200
The percent of the number is 0.5% when the number is 1/200.
Given that,
We have to find the percent of the number 1/200.
A percentage is a number or ratio that, in mathematics, represents a portion of one hundred. It's frequently represented by the symbol "%" or just "percent" or "pct."
Take the number.
1/200
Multiply by 100
1/200×100
We get
1/2
In decimal we get
0.5%
Or
Convert the number to decimal.
1/200= 0.005
Multiply 0.005 by 100 to convert to a percentage.
0.005×100
Simplify
0.5%
Therefore, The percent of the number is 0.5% when the number is 1/200.
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If x²+kx+16/9 is a perfect square. Find the value of k
Answer:
For x² + kx + 16/9 to be a perfect square, k should be equal to 8/3
Step-by-step explanation:
If x² + kx + 16/9 is a perfect square then it must satisfy the formula of (a + b)² i.e. equal to a² + 2ab + b².
So, first we will form a equal that looks similar to the formula:
[tex] \rm \implies {x}^{2} + kx + \dfrac{4 \times 4}{3 \times 3} \\ \\ \rm \implies {x}^{2} + kx + { \bigg( \dfrac{4}{3} } \bigg)^{2} [/tex]
Now by comparing we get,
[tex] \rm \implies k \cancel{x} = 2 \times \cancel{x}\times \frac{4}{3} \\ \\ \rm \implies k = \dfrac{8}{3} [/tex]
A = LW is the formula for the area of a rectangle.
Solve the formula for W.
Scott will purchase a new computer on an installment plan. The computer costs $2,300 and requires a 15% down payment.
a.) How much is the down payment?
The value of the down payment for the car is $345.
How to calculate the.dow payment?From the information, Scott will purchase a new computer on an installment plan and the computer costs $2,300 and requires a 15% down payment.
The value of the down payment will be:
= Down payment percentage × Total cost
= 15% × $2300
= 0.15 × $2300
= $345
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Extra Credit
Where does this function cross the x-axis?
y = 25x² - 49
Answer:
Step-by-step explanation:
45
Please help will mark brainiest!!!
1.) Rowan graphs the function f (x) = 7x + 1 and then transforms the function by horizontally translating it 5 units to the right. What is the newly transformed function, g (x)?
g(x) = 7(x+5) + 1 is the newly transformed function
How to find the newly transformed function, g (x)?
A function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input
Given that: He graphs the function f (x) = 7x + 1 and then transforms the function by horizontally translating it 5 units to the right
To solve this problem, we need to understand the direction of movement. In the cartesian plane or graph, the x-axis is either a movement to the left(negative) or right(positive)
Since the function f (x) = 7x + 1 translates by 5 units to the right. You need to add 5 to x i.e. 7(x+5) + 1
Therefore, the newly transformed function, g (x) = 7(x+5) + 1
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Given that x is a nonnegative number, a student conjectured that a +5 < x²
Which value of x is a counterexample to the student's conjecture?
A.) x = -1/
5
B.)x = -5
C.)x = 0
D.) x = 5
Option B, x = -5 is correct answer, x = -5 is the counter example to the student's conjecture.
What is inequality?
A mathematical phrase in which the sides are not equal is referred to as being inequal. In essence, a comparison of any two values reveals whether one is less than, larger than, or equal to the value on the opposite side of the equation.
Given inequality in the question is:
x +5 < x²
We will check each option given I question by putting value of x,
putting x = -1/5
x + 5 < x²
-1/5 + 5 < (-1/5)²
24/5 < 1/25
4.8 < 0.04
This is wrong inequality , Therefore, x is not equal to -1/5
putting x = -5
x + 5 < x²
-5 + 5 < (-5)²
0 < 25
This is satisfying the inequality ,
Therefore, x is equal to -5
Hence, correct answer is x = -5
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the area of a circle is increasing at a constant rate of 178 square feet per second. at the instant when the radius of the circle is 44 feet, what is the rate of change of the radius? round your answer to three decimal places.
The rate of change of radius of the circle when the radius of the circle is 44 feet is 0.64 ft/s.
The area of the circle with radius R us given by,
A = πR²
It is given that the area is increasing at a constant rate of 178 square feet per second.
dA/dt = 178 ft²/s
Also, A = πR²
Differentiating A with respect to time,
dA/dt = 2πR.dR/dt
The rate of change of the radius is asked when the radius is 44 feet.
So, putting R = 44 ft.
dA/dt = 2π(44)dR/dt
178 = 2π(44)dR/dt
dR/dt = 0.64 ft/s
So, the rate of change of radius is 0.64 ft/s.
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There is two function equations, f(x)=2x²+3x-4 and h(x)= -x²+8
If the input is f(1)+h(1), how exactly would I solve this
To solve f(1)+h(1) .....
plug in 1 for x in both equations f(x) and h(x):
f(1)=2(1)²+3(1)-4 = 2+3-4 = 1
h(1)= -(1)²+8 = -1+8 = 7
f(1)+h(1) = 1 + 7 = 8
Hope it helps!
-3+x=7 show me the answer and problem
Answer:
x=10
Step-by-step explanation:
-3+x=7
Add 3 to both sides.
7+3=10
x=10
Answer:
x=10
Step-by-step explanation:
-3+x=7
You have to add 3 to both sides to cancel out the -3
x=10
That leaves you with x=10
William is a trucker. Today, he is hauling refrigerators that weigh 0.16 tons each. His truck
weighs 15 tons when empty. What is the total weight of the truck with 20 refrigerators on it?
Write and solve an equation to find the answer.
tons
4
Answer:
Full truck = 18.2 tons
Step-by-step explanation:
FT = ET + 20R. ET (Empty Truck) = 15t
R (refrigerator) = 0.16t
FT = 15t + 3.2t
FT= 18.2t
find the roots of each expression with rational exponents.
1.27⅓
2.225½
3.49³/²
(please show solution
you can write in on paper)
simplify each expression
For the given expressions the roots with rational exponents are as follow:
a. 27¹/³ = 3
b. 225 ¹/² = 15
c. 49 ³/² = 243
As given in the question,
For the given expressions the roots with rational exponents are as follow:
Solution of each expression is given by:
a. 27¹/³
Prime factors of 27 is equal to 3 × 3 × 3
27¹/³
= ( 3 × 3 × 3 )¹/³
= ( 3³ )¹/³
= 3
b. 225 ¹/²
Prime factors of 225 is equal to 3 × 3× 5× 5
225 ¹/²
= ( 3× 3× 5× 5)¹/²
= ( 15²)¹/²
= 15
c. 49 ³/²
Prime factors of 49 is equal to 7 × 7
49 ³/²
= ( 7 × 7) ³/²
= (7²) ³/²
= 7³
= 343
Therefore, for the given expressions the roots with rational exponents are as follow:
a. 27¹/³ = 3
b. 225 ¹/² = 15
c. 49 ³/² = 243
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Using the figure below, which table correctly lists the steps and reasons used to find the measure of angle d?
Answer:
140
Step-by-step explanation:
140
A carpenter needs 8.5 feet of rope for a project. How much will the carpenter spend if the rope costs $4.57 per foot?
Answer: The carpenter will spend $38.84
Step-by-step explanation:
8.5 feet of rope and the rope costs 4.57 per foot
8.5x4.57=38.845
Since half a cent does not exist we can get rid of the 5 at the end
Therefore the carpenter will have to spend $38.84
Unless you want to round it up, then it will be $38.85
the numbers 1, 2, 3, 4, 5 are to be arranged in a circle. an arrangement is badbad if it is not true that for every nn from 11 to 1515 one can find a subset of the numbers that appear consecutively on the circle that sum to nn arrangements that differ only by a rotation or a reflection are considered the same. how many different bad arrangements are there?
There are 2 different bad arrangements possible.
We see that there are 5! absolute ways of orchestrating the numbers. Nonetheless, we can constantly turn these numbers so that, for instance, the number 1 is dependably at the highest point of the circle. Consequently, there are just 4! ways under turn, which is easy to drill down. We methodically list out every one of the 24 cases.
Presently, we should inspect assuming they fulfill the circumstances. We can see that by selecting each number, in turn, we can continuously acquire subsets with aggregates 1, 2, 3, 4, and 5. By picking the round trip, we can get 15. By selecting everything aside from 1, 2, 3, 4, and 5, we can get subsets with amounts of 10, 11, 12, 13, and 14.
This implies that we presently just have to check for 6, 7, 8, and 9. Be that as it may, whenever we have found a set adding to 6, we can pick all the other things and get a set adding to 9, and comparably for 7 and 8. Hence, we just have to check each case for whether we can acquire 6 or 7.
We observe that there are just 4 arrangements that fulfill these circumstances. In any case, each of these is an impression of another. We divide by 2 for these reflections to get the final answer of B = 2.
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Here are some numbers.
8
11
13
18
25
37
8,13,18is an arithmetic progression and the rule is to add 5.
Use three of the numbers to make a different arithmetic
progression.
Describe the rule.
The different arithmetic progression is [tex]11, 18, 25[/tex] and the rule is to add [tex]7[/tex].
What is an arithmetic progression?
A series of numbers known as an arithmetic progression or arithmetic sequence (AP) has a constant difference between the terms.
We have,
[tex]8, 11, 13, 18, 25, 37[/tex]
Given arithmetic progression is [tex]8, 13, 18[/tex] and the constant difference is [tex]5[/tex].
By using this phenomenon we can create new arithmetic progression like,
[tex]11, 18, 25[/tex]
Here the constant difference or rule is [tex]7[/tex].
Hence the new and different arithmetic progression is [tex]11, 18, 25[/tex].
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An ocicat eats $\frac 35$ of a pound of food daily. How many whole ocicats can a $19\frac 12$-pound bag of food feed for one week?
Number of ocicats that [tex]19\frac{1}{2}[/tex] food will last for one week is 4 .
In the question ,
it is given that
the amount of food that the ocicat eats in 1 day = 3/5 pound
So , the amount of food that the ocicat eats in 1 week = (3/5) × 7 = 21/5
we have to find the number of ocicat that can eat [tex]19\frac{1}{2}[/tex] pound of food feed .
So ,
the number of ocicat that can eat [tex]19\frac{1}{2}[/tex] pound of food feed = [tex]19\frac{1}{2}[/tex] ÷ 21/5
= (19*2+1)/2 ÷ 21/5
= 39/2 × 5/21
= (39 × 5)/(2 × 21)
= 195/42
= 65/14
= [tex]4\frac{9}{14}[/tex] ocicats
since the number of ocicats cannot be in fraction ,
so number of ocicats = 4
Therefore , Number of ocicats that [tex]19\frac{1}{2}[/tex] food will last for one week is 4 .
The given question is incomplete , the complete question is
An ocicat eats 3/5 of a pound of food daily. How many whole ocicats can a [tex]19\frac{1}{2}[/tex] -pound bag of food feed for one week?
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Can anyone write the equation of the graph?
The function represented by the graph has an equation of f(x) = |x - 3| + 5
How to find the equation of the graph line?From the question, we have the following graph that can be used in our computation:
The graph is an absolute value graph
As a general rule, an absolute value is expressed as
y = |x - h| + k
In this case, the vertex is
Vertex = (h, k)
As a general rule, the vertex of a function is the minimum point on the graph
On the given graph, the minimum point is (3, 5)
This means that
(h, k) = (3, 5)
Substitute the values (h, k) = (3, 5) in the equation y = |x - h| + k
So, we have the following representation
y = |x - 3| + 5
Rewrite the equation as a function
f(x) = |x - 3| + 5
Hence, the equation of the graph represented by the figure is f(x) = |x - 3| + 5
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The table shows the linear relationship between the number of pages left to read in a novel and the number of hours a student has already spent reading the novel. Mark each statement as true or false. If false, rewrite the statement correctly.
The student reads at a rate of 48 pages per hour.
By using the rate of change formula for linear equations, we will see that the statement is true.
Is the statement true or false?
Here we have the following statement:
"The student reads at a rate of 48 pages per hour."
Which relates to the linear equation represented on the table.
A general linear equation is written as:
y = a*x + b
Where a is the rate and b is the y-intercept.
If the line passes through two points (x1, y1) and (x2, y2), then the rate is:
rate = (y2 - y1)/(x2 - x1)
Using the first two points (1,644) and (4, 500) we can get the rate:
R = (500 - 644)/(4 - 1) = -48
So the number of pages remaining decreases by 48 each hour of reading, then yes, the student reads at a rate of 48 pages per hour.
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20 plants were measured and their heights were recorded in cm. Here are the heights: draw a frequency polygon to represent the data
(also, I just need b, I've done A)
Triangle ABC is congruent to triangle XYZ. Side BC corresponds to what side in triangle XYZ?
Answer:
Side BC is congruent to side YZ
pens cost 20p each and pencils cost 12p each if i buy 6 pens and 5 pencils what will be the total cost
Answer:
$1.80
Step-by-step explanation:
Find the other endpoint with the given endpoint (-5, 1) and midpoint (3, -4)
The other end point with the given endpoint (-5, 1) and midpoint (3, -4) is (11, -9)
What is mid point?A midpoint is a point lying between two points and is in the middle of the line joining the two points.
The mid point formula is represented as follows;
(xₙ, yₙ) = (x₁ + x₂ / 2, y₁ + y₂ / 2)
Let's find the other end point with the given endpoint (-5, 1) and midpoint (3, -4).
Hence,
(3, -4) = (-5 + x₂ / 2, 1 + y₂ / 2)
Therefore,
3 = -5 + x₂ / 2
cross multiply
6 = -5 + x₂
x₂ = 6 + 5
x₂ = 11
-4 = 1 + y₂ / 2
cross multiply
-8 = 1 + y₂
y₂ = -8 - 1
y₂ = - 9
Therefore, the endpoint is (11, -9)
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[tex]3\sqrt{6w-288[/tex]
Someone please help me with this question
Answer: D
Step-by-step explanation: Proportional relationship = relationships between two variables where their ratios are equivalent. 6:15 is equivalent with both 8:20 and 10:25. So D is the correct answer.
John needs a total of $100 to buy a birthday present for his friend. He has already saved $35. If he saves $10 a week from his earnings what is the least number of weeks he must work to have enough money to buy the present?
Answer: D) 7
Step-by-step explanation:
First put this into an equation as shown
f(x)=10x
The 10 is for the money he makes and the x is the amount of weeks
then take the 35 dollars he already saved and put it into an equation as shown
35+f(7)
the f(7) is just another way to say y=10(7) (f(x) is just y but fancy lol)
7 is the number of weeks he can work to get 105. It can't be 6 because that would be 95 dollars and it can technically be 8 but the question ask for the least number of weeks.
Hope that helped. It may have been a bit complicated.
Answer:5
Step-by-step explanation:
10x7=70
35+70=105
I NEED HELP WITH QUESTION 6!
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How do you solve this? (-7 + i)(-3 + 6i).
After simplification, the solution of the expression (-7 + i)(-3 + 6i) is 15 - 45i.
In the given question we have to solve the given expression.
The given expression is (-7 + i)(-3 + 6i).
Using the distributive property to solve the given expression.
a(b+c)=ab+ac
Now simplifying the expression.
(-7 + i)(-3 + 6i) = -7(-3 + 6i) + i(-3 + 6i)
(-7 + i)(-3 + 6i) = (-7)*(-3) + (-7)*(6i) + (-3)i + (6i)i
(-7 + i)(-3 + 6i) = 21 - 42i - 3i + 6i^2
As we know that i^2 = -1. So
(-7 + i)(-3 + 6i) = 21 - 42i - 3i + 6(-1)
(-7 + i)(-3 + 6i) = 21 - 42i - 3i - 6
Simplifying
(-7 + i)(-3 + 6i) = 15 - 45i
Hence, the solution of the expression (-7 + i)(-3 + 6i) is 15 - 45i.
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Two glasses of milk and 3 snack bars have a total of 67 carbohydrates (carbs), and 4 glasses of milk and 2 snack bars have a total of 74 carbs. Determine how many carbs are in one glass of milk and in one snack bar.
a man has extra digits (six fingers on each hand and six toes on each foot). his wife and their daughter have a normal number of digits. having extra digits is a dominant trait. the couple's second child has extra digits. what is the probability that their next (third) child will have extra digits?
The likelihood of their next third child having additional digits of (six fingers on each hand and six toes on each foot) is 1/2.
Define the term dominant traits?A trait is a distinguishing characteristic that a person possesses. Dominant traits are defined as having only one copy of a gene on a chromosome which expresses a specific trait.Individuals exhibit the dominant traits most prominently. Polydactyly is the dominant condition in this case.For the given condition,
The father has six fingers plus six toes, while the mother is still in normal condition. In this particular case, polydactyly is a dominant characteristic. Twelve percent of the couple's children are projected to have additional digits.Because the father has the dominant feature as well as the mother is now in normal condition, there is a 50% chance that this deformity will be passed down to children.
Thus, the likelihood of their next (third) child having additional digits is 1/2.
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