Step-by-step explanation:
grams meterand liter. .................................
BRAINLIEST!! PLZ HELP
Given f (x) = x2 – 4 and g(x) = x + 3 then g (f (2)) =
Answer:
g (f(2)) = 3
Step-by-step explanation:
f (x) = x2 – 4
g(x) = x + 3
g (f (2)) =?
Find f(2) first
f (x) = x2 – 4
f (2) = 2^2- 4
= 0
Now put this in your g(x)
g(x) = x + 3
g (f(2)) = (f(2)) + 3
And u alredy know f(2) =0, so just put it in
g (f(2)) = 0 + 3
=3
Can someone please solve 14 and 15
H. Tito started the week with a $20 in his lunch
account. If meals costs $2.30 each, write a linear
equation modeling Tito's account value. Can Tito
afford 9 meals?
Answer:
See Below
Step-by-step explanation:
Total money = $20
Cost of one time meal = $2.30
Linear equation = $20 - $2.3(x) Where x is the number of days
No, he can't afford 9 meals because 2.3 × 9 = 20.7. Which is out of his account's money
19 + 1.5(10m – 8) = 127
[tex]19+1,5(10m-8)=127\\\\19+15m-12=127\\\\15m+7=127 \ \ /-7\\\\15m=120 \ \ /:15\\\\\huge\boxed{m=8}[/tex]
Answer:
[tex]m=8[/tex]
Step-by-step explanation:
[tex]19 + 1.5(10m-8) = 127[/tex]
Multiply both sides by 10
[tex]190+15(10m-8)=1270[/tex]
Subtract 190 from both sides
[tex]15(10m-8)=1080[/tex]
Divide both sides by 15
[tex]10m-8=72[/tex]
Add 8 to both sides
[tex]10m=80[/tex]
Simplify
[tex]m=8[/tex]
Which is a step in the process of calculating successive discounts of 8% and 10% on a $50 item?
a. take 2% of $50
b. take 8% of $46
C. take 10% of $46
d. take 18% of $50
Answer:
C. take 10% of $46
Step-by-step explanation:
I took it on edge
Solve y = x + 4 for x
(9th-grade Algebra 1)
Answer:
[tex]x=y-4[/tex]
Step-by-step explanation:
Solve for x by simplifying two sides of the equation then isolating the variable.
Hope this helps!
The temperature outside is dropping at a rate of 1.5 degrees each hour . It last is raining and the weather station predicts a changeover from rain to sleet when the temperature reaches 32*F or below . Currently the temperature is 53*F and the time is 8:30am when do you predict the changeover to sleet will occur?
Please help me
The changeover to sleet will happen at 10:30pm
The changeover to sleet is predicted to occur at 10:30 pm.
Given,
The temperature outside is dropping at a rate of 1.5 degrees each hour.
The changeover from rain to sleet is when the temperature reaches 32*F or below.
Currently, the temperature is 53*F and the time is 8:30 am.
We need to find at what time can we predict the changeover to sleet will occur.
What is temperature?Temperature is the measure of the hotness or coldness of an object with reference to some standard value.
We have,
Current temperature = 53*F at 8:30 am.
Rate of the drop of temperature = 1.5 degrees per hour.
Find the number of hours needed to drop from 53*F to 32*F.
53*F - 32*F = 21*F
We need to find how many hours required to drop to 21*F
1 hour = 1.5 degrees
Multiplying 21/1.5 on both sides.
21/1.5 x 1 hour = 21/1.5 x 1.5 degrees.
14 hours = 21 degrees
The number of hours required to drop from 53*F to 32*F is 14 hours.
8:30 am + 14 hours = 10:30 pm
Thus the changeover to sleet is predicted to occur at 10:30 pm.
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2. Represent √7 on a number line.
32 can go into 96 how many times
Answer:
3 times osndneif8dhwlcodk
Answer:
3 times
Step-by-step explanation:
96/32=3
32+32=64+32=96
Find the area and perimeter.
Answer:
Step-by-step explanation:
Perimeter of triangle = 4x - 3 + x + 9 + 8
= 4x + x - 3 + 9 + 8
= 5x + 14
Area = [tex]\frac{1}{2}*base *height[/tex]
[tex]= \dfrac{1}{2}*8*3x\\\\= 4 * 3x\\\\= 12x[/tex]
the following ratios form a proportion 6/8 * 10/12 true or false
Answer:
false
Step-by-step explanation:
10/12 is 5/6 and 6/8 is 12/16 that's the closest whole number proportionality also, it would both have a difference of 2
please help, this is geometry
Answer:
Step-by-step explanation:
The formula is the same almost as the previous question you posted.
You want to find the major arc. That's almost the whole circle. If it was the whole circle, the formula would be 2 * pi * r
But we only want a part of it. Just how big is the angle we use in the formula?
A circle has 360 degrees to go around it. We've cut out a slice of it that is 30 degrees.
The remaining part is 360 - 30 = 330
Arc length = angle / 360 * 2 * pi * r
r = 3 m
Arc length = 330 / 360 * 2 * pi * 3
Arc length = 0.9167 * 6 * 3.14
Arc length = 17.27
Create an equivalent expression using the drop downs below 4(32 – 4).
Answer:
7x
Step-by-step explanation:
It equals 28 just like the problem with parentheses, 7x .
Help! Perimeter and Area please.
Evaluate the function, f(x) = 3x²-8
f(5x)
Answer:
[tex]f(x)=3x^{2} -40fx[/tex] i think
Step-by-step explanation:
Find the scale factor of 1 inch = 9 feet
Answer:
9 ft = 9 × 12 = 108 in
ratio is 1:108
Step-by-step explanation:
Simplify:
(-2x^3y^2)^5
Answer:
power rules attached
Step-by-step explanation:
(-2x³y²)⁵ = (-2)⁵.(x³)⁵.(y²)⁵
= -32x¹⁵ .y¹⁰
Evaluate the expression when a=
[tex] \frac{11 }{15} [/tex]
and c=
[tex] \frac{3 }{10} [/tex]
-2c+a
write your answer in simplest form
Answer:
[tex]\frac{2}{15}[/tex]
Step-by-step explanation:
Substitute the values for a and c into the expression
- 2c + a
= - 2× [tex]\frac{3}{10}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{3}{5}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{3(3)}{5(3)}[/tex] + [tex]\frac{11}{15}[/tex]
= - [tex]\frac{9}{15}[/tex] + [tex]\frac{11}{15}[/tex]
= [tex]\frac{2}{15}[/tex]
The sum of 48 and itself,it's half and half of the half is added to 18
An architect is hanging a large sign from a triangular shaped
ceiling and plans to hang the sign at a point located at the
centroid of the triangle.
A diagram of the triangular ceiling shown by A ABD was used
to determine the point on the ceiling where the sign will be hung,
which will be at point G. The length of one median of the
triangular ceiling, BE, is 45 feet.
What is the distance from one corner of the ceiling, at point B, to
the hanging point of the sign?
Enter your answer in the box.
Answer:
30 feet
Step-by-step explanation:
I just took the quiz :)
Express the repeating decimal 2.1 repeating as a fraction.
Answer:
2 1/9
Step-by-step explanation:
Answer:
2.1×10=21
Step-by-step explanation:
.°.2,1/10
=2.1
HELP ME I ONLY HAVE 15 MINUTES
... 30, 50, 100
... 180
... 50
The number of writing instruments in some teachers' desks is displayed in the dot plot. Which is greater the mean or the median? Explain your reasoning using the shape of the distribution.
please help..
30 points
The median is greater than the mean. From the shape of the distribution, the data set has more values on the left, so we can say it is skewed to the left. In every distribution that is skewed to the left, the median is always greater than the mean.
In the given chart we can deduce the following;
number of instruments that is 5 = 1number of instruments that is 6 = 1number of instruments that is 7 = 1number of instruments that is 8 = 1number of instruments that is 9 = 3number of instruments that is 10 = 4number of instruments that is 11 = 2number of instruments that is 12 = 1These numbers can be listed as follows;
5, 6, 7, 8, 9, 9, 9, 10, 10, 10, 10, 11, 11, 12
The median of these numbers is calculated as;
[tex]median = \frac{9+ 10}{2} = 9.5[/tex]
The mean of these numbers is calculated as;
[tex]mean = \frac{5+6+7+8+9+9+9+10+10+10+10+11+11+12}{14} = 9.07[/tex]
Thus, the median is greater than the mean.
Also, from the shape of the distribution, the data set has more values on the left, so we can say it is skewed to the left. In every distribution that is skewed to the left, the median is always greater than the mean. But if the distribution is skewed to the right, the mean is always greater than the median.
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Amanda's earnings vary directly with the number of hours she works. Suppose that she worked 9 hours yesterday and earned 117. how much will she earn today if she works seven hours
Answer:
91
Step-by-step explanation:
117/9 is 13 which means she earns 13 for each hour and for 7 hours it will be 13 multiply by 7 and that gives 91
Can someone help please ?
Answer:
This equation has no solution.
The y-intercept of 3y − 8x = 18 is (0, 6).
True or False
Answer:
3y = 8x + 18
for y-intercept let x = 0
3y = 8(0) + 18
3y = 18
y = 6
y-intercept is (0, 6)
THIS IS TRUE
solve the equation. determine whether or not the equation has one solution, no solution, or infinitely many solutions. 6c+3=c-12
Find the distance between the given points: (2, -2) and (-4, 7)
Answer:
[tex]3\sqrt{13}[/tex]
Step-by-step explanation:
Hi there!
We want to find the distance between the points (2, -2) and (-4, 7).
To do that, we can use the distance formula.
The distance formula is given as [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points
We have everything needed to find the distance, but let's label the values of the points to avoid any confusion
[tex]x_1=2\\y_1=-2\\x_2=-4\\y_2=7[/tex]
Now substitute those values into the formula and solve
[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\sqrt{(-4-2)^2+(7--2)^2}[/tex]
Simplify
[tex]\sqrt{(-4-2)^2+(7+2)^2}[/tex]
[tex]\sqrt{(-6)^2+(9)^2}[/tex]
Square the numbers under the radical
[tex]\sqrt{36+81}[/tex]
Add the numbers under the radical together
[tex]\sqrt{117}[/tex]
Simplify the square root
[tex]3\sqrt{13}[/tex]
Hope this helps!
Is negative 5 a rational number or an irrational number
(Pleasee help me)
Answer:
Negative five is in fact a rational number.
Step-by-step explanation:
Rational numbers can either be negative or positive. An irrational number would be pi (3.14159 etc.)
in the figure below the measure of <1=5x°, the measure of <2=y°, and the measure of <3=85°. Find the value of each variable.
Answer:
180-85=95
180-95=85
5x=85
x=17
For given figure, x = 17° and y = 95°
What is an equation?"It is a mathematical statement which consists of equal symbol between two mathematical expressions."
For given question,
We have been given ∠1 = 5x°, the measure of ∠2 = y°, and the measure of ∠3 = 85°
we know, the sum of all the angles on one side of a straight line is always 180°
So, we get two equations.
∠1 + ∠2 = 180° .....................(i)
and ∠2 + ∠3 = 180° .....................(ii)
First we solve equation (ii) to find the value of ∠2
⇒ ∠2 + ∠3 = 180°
⇒ y + 85° = 180°
⇒ y = 95°
Now substitute this value of ∠2 in equation (i)
⇒ ∠1 + ∠2 = 180°
⇒ 5x° + y° = 180°
⇒ 5x° + 95° = 180°
⇒ 5x° = 85°
⇒ x = 17°
Therefore, x = 17° and y = 95°
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