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hodyreva [135]
2 years ago
12

ANSWER PLZ QUICK AND FAST

Mathematics
1 answer:
kotykmax [81]2 years ago
4 0

Hi!

The answer is C. It is a numerical expression because it contains only numbers and operation symbols.

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A pecan pie is being served for dessert. One piece of pie has an arc length of 7.85 in. It has been cut into 8 equal pieces. Wha
grin007 [14]

Answer:

The radius of the pie is 6.17 in.

Step-by-step explanation:

The formula for arc length as a function of radius is

s = r·Ф, where Ф is the central angle in radians.

Here we know that the arc length is 7.85 in.  Assuming that the whole pie has been cut into 8 equal pieces, the central angle of one such piece is

2π / 8, or π /4 (radians).

thus, s = r·Ф, solved for r, is r = s/Ф

and in this instance r = (7.85 in)/(π/4).  Evaluating this, we get:

                                 r = 6.17 in

The radius of the pie is 6.17 in.

8 0
3 years ago
Given the function f(x)=-8x2+8x+9,state whether the vertex represents a maximum or minimum point for the function.
Lelechka [254]
8x2+8x+9
=16x+8x+9
=24x+9
Are that right
5 0
3 years ago
Two cars are traveling down the highway with the same speed. If the first car increases its speed by 1km/hr, and the other car d
Olegator [25]

Answer:

The speed of the cars is 32 \frac{km}{h}

Step-by-step explanation:

First we must first have the clear concept that speed=\frac{distance}{time} or s=\frac{d}{t}

Our question is the speed of the cars then the variable to clear will be s.

Let's raise the equation for each car taking into account that we have the following data:

Car 1: s_{1}=s+1 , t_{1}=2 and d_{1}= d_{2}

Car 1: s_{2}=s-10 , t_{2}=3 and d_{1}= d_{2}

The two cars travel the same distance so we will raise the distance formula for each car and then match them.

<em>Car 1</em>

d_{1}=s_{1}*t_{1}

d_{1}=(s+1)*2

d_{1}=2s+2

<em>Car 2</em>

d_{2}=s_{2}*t_{2}

d_{2}=(s-10)*3

d_{2}=3s.30

d_{1}=d_{2}

2s+2=3s-30

2+30=3s-2s

32=s

The speed of the cars is 32 km/hr

7 0
3 years ago
The opposite of which number is closest to -5?<br> A) -8 <br> B) -7 <br> C) -6 <br> D) 7
Rina8888 [55]

the answer is 7 because all of the other numbers opposites aren't negative

6 0
2 years ago
Read 2 more answers
Santa gave kittens to 13 boys and girls. What is the ratio of kitten ears to kitten tails?
SVEN [57.7K]

Answer:

Ratio = 2 : 1

Step-by-step explanation:

Given

Population = 13 --- Boys & Girls

Required

Determine the ratio of the kitten ears to the tails

A kitten has 1 tail and 2 ears.

Assume each individual got 1 kitten each

This implies that,

Number\ of\ tails= 1 * 13

Number\ of\ tails= 13

Number\ of\ ears= 2* 13

Number\ of\ ears= 26

The ratio of ears to tail is then calculated as follows:

Ratio = Number of ears : Number of tails

This gives

Ratio = 26 : 13

Divide by 13

Ratio = 26/13 : 13/13

Ratio = 2 : 1

8 0
3 years ago
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