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3 years ago

Help!?!! Im sooo confused

Mathematics

2 answers:

Gnesinka [82]3 years ago

6 0

If x=3 then the f(x)=4
If x=6 then the f(x)=7
If x=7 then the f(x)=8

Tresset [83]3 years ago

6 0

You just replace x with number, easy.

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Write as a decimal<br> A) 407 tenths <br> B) 209 hundredths

castortr0y [4]

Answer:- A) 407 tenths =40.7

B) 209 hundredths=2.09

Explanation:-

We know that one tenth $=\frac{1}{10}$ and one hundredth $=\frac{1}{100}$

A) 407 tenths

$=\frac{407}{10}=40.7$

Thus decimal form of 407 tenths is 40.7.

B) 209 hundredths

$=\frac{209}{100}=2.09$

Thus decimal form of 209 hundredth is 2.09.

4 0

3 years ago

Read 2 more answers

In a park,a sidewalk is built around the edge of a circular pond.The sidewalk is 7 feet wide,and the pond measure 15 feet across

densk [106]

Answer:

91.14 feet

Step-by-step explanation:

Given:

In a park,a sidewalk is built around the edge of a circular pond.

The sidewalk is 7 feet wide, and the pond measure 15 feet across.

Question asked:

What amount of railing would be needed to go completely around the outer edge of the sidewalk?

Solution:

From distance from one edge of the pond to the another = 15 feet

That means diameter of the pond = 15 feet

And width of the sidewalk = 7 feet all around

combined diameter = 15 + 7 + 7 = 29 feet

Radius,r = $\frac{Diameter}{2} =\frac{29}{2} ==14.5\ feet$

That means distance between outer edge of the sidewalk to the center of the circular pond = 14.5 feet

Now, we will have to find circumference of outer circular edge of sidewalk:

$Circumference\ of\ circle=2\pi r$

$=2\times\frac{22}{7} \times14.5\\ \\ =\frac{638}{7} \\ \\ =91.14\ feet$

Therefore, 91.14 feet would be needed to go around the outer edge of the sidewalk.

7 0

3 years ago

Helpp me pleasee correct answers! (10 points )

Softa [21]

Answer: Approximately 30.4 degrees

=========================================================

Work Shown:

324 - 1.6 = 322.4 is the height of the right triangle. This is the opposite side compared to the angle theta.

The adjacent side is 550 since it is the leg closest to the angle theta.

We'll use the tangent rule to connect the two sides

tan(angle) = opposite/adjacent

tan(theta) = 322.4/550

theta = arctan(322.4/550)

theta = 30.3780566013696

theta = 30.4

Your teacher didn't provide any rounding instructions, but I rounded to one decimal place since the value 1.6 is to one decimal place.

5 0

3 years ago

Kelsey works 12 hours per week. How much does she make per hours

nataly862011 [7]

Well for minimum wage it would be $7.25 but it depends on the state

5 0

3 years ago

Use the following graph of the function f(x) = 2x3 + x2 − 3x + 1 to answer this question: graph of 2x cubed plus x squared minus

Zina [86]

Answer:

Step-by-step explanation:

f(x) = 2x^3 + x^2 − 3x + 1

f'(x) = 6x^2 + 2x − 3

The slope at -2:

f'(-2) = 6(-2)^2 + 2(-2) − 3

f'(-2) = 24 + -4 − 3

f'(-2) = 17

-----

The slope at 0:

f'(0) = 6(0)^2 + 2(0) − 3

f'(0) = − 3

The average rate of change is (17+(-3))/2, or 14/2, or 7

6 0

2 years ago

Read 2 more answers