pls answer this i need help

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

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

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

[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]

Answer:

A.4

explanation:

you can find the slope using this formula

m=(y2-y1)/(x2-x1)

(-16--8)/(-7--5)= 4

Answer: I think Plan A is the cheapest

Step-by-step explanation:

I would say this because all it is is a 10 cent incline and 30 dollars cheaper, meaning it would take almost 15 weeks to earn 30 dollars on the plan a, while plan b will already be at like 100 Dollars.

I am sorry if I didn't completely answer your question but I did the best to my ability

Thanks!

Answer:

7x

Step-by-step explanation:

It equals 28 just like the problem with parentheses, 7x .

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;

These 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.

Learn more here: https://brainly.com/question/24055593

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]

Answer:

30 feet

Step-by-step explanation:

I just took the quiz :)

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]

Answer:

180-85=95

180-95=85

5x=85

x=17

For given figure, x = 17° and y = 95°

"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°

Learn more about equation here:

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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

Answer:

power rules attached

Step-by-step explanation:

(-2x³y²)⁵ = (-2)⁵.(x³)⁵.(y²)⁵

= -32x¹⁵ .y¹⁰

Answer:

2 1/9

Step-by-step explanation:

Answer:

2.1×10=21

Step-by-step explanation:

.°.2,1/10

=2.1

... 30, 50, 100

... 180

... 50

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

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.

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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Answer:

See the image for solution.

Brainlist please!!

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!

Answer:

9 ft = 9 × 12 = 108 in

ratio is 1:108

Step-by-step explanation:

Answer:

3.026 $

Step-by-step explanation:

3.4 × 0.89 = 3.026 $

Answer:

3 times osndneif8dhwlcodk

Answer:

3 times

Step-by-step explanation:

96/32=3

32+32=64+32=96

Answer:

Governments, need to know how many inhabitants currently live in the country and how many there will be in the future. From this they can plan and make better decisions regarding the construction of schools, hospitals, roads, and more.

Answer:

( x - 2) ( x + 2 ) ( x² + 4 ) - ( x² - 3 ) ( x² + 3 )

(x² – 4) (x²+4) – ( x⁴ – 9 )

(x⁴ – 16 ) – ( x⁴ – 9)

(x⁴ – 16 ) + ( – x⁴ + 9) = – 7

I hope I helped you^_^