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nydimaria [60]
3 years ago
12

Given a sphere with radius r, the formula 4pier^2 gives

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
5 0

Answer:

B.  The surface area.

Step-by-step explanation:

4πr^2 gives the surface area of a sphere.

enot [183]3 years ago
5 0

Answer: the surface area

Step-by-step explanation:

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Lauren Rob need to find a decimal equivalent to 39/50 Laura said she could write an equivalent fraction with 100 as the denomina
Lina20 [59]

Answer:

Laura and Rob are correct

Step-by-step explanation:

we have

39/50

1) Rob said he could divide the numerator by the denominator

so

using a calculator

39/50=0.78

Rob is correct

2) Laura said she could write an equivalent fraction with 100 as the denominator to converted into a decimal

so

Multiply by 2/2

(39/50)*(2/2)=78/100=0.78

Laura is correct

therefore

Laura and Rob are correct

5 0
3 years ago
Graph the given function.
SpyIntel [72]

*<em>The graph has an asymptote at y = 0 and is increasing as x approaches positive infinity.*</em>

(got it right on edmentum)

<h2>for your assurance please look at the picture below for the right answer↓</h2>

4 0
3 years ago
7 + (10 − 4)2 ÷ 4 × 1 over 2 to the power of 3
postnew [5]

1.25

7 + (10 − 4)2 ÷ 4 × 1 over 2 to the power of 3

       7+ (6)2÷ 4 × 1 over 2 to the power of 3

             7+ (12)÷ 4 × 1 over 2 to the power of 3

                     7+3 × 1 over 2 to the power of 3

                          10 over 2 to the power of 3

                                     10 over 8

                                              1.25

5 0
3 years ago
What is the value of b?
pishuonlain [190]

Answer:

The quadratic function is f(x) = a * x^2 + b * x + c . The b-value is the middle number, the number next to the x. The other letters, a and c, are also numbers like b.

5 0
3 years ago
Given triangle FGH similar to triangle LMN, which must be true? Select all that apply
Otrada [13]

Answers:

A. True

B. True

C. True

D. False

E. True

In short, only answer choice D is false. Everything else is true.

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

Explanations:

A. The ordering of FGH and LMN is important. This is because F and L pair up as the first letters of the triple letter sequences, so do G and M as the second letters. Segment FG pairs up with LM because we're talking about the first two letters of both sequences. At the same time, FH and LN pair up because they are composed of the first and third letters of FGH and LMN respectively. Due to the triangles being similar, we can say FG/LM = FH/LN, ie we have a proportion.

------------------

B. Segment LN is proportional to FH, as explained back in part A. For example, FH could be 10 times longer than LN, making FH = 10*LN. Once the scale factor is set, you must use it for the other pairs of sides as well.

------------------

C. Similar triangles have corresponding angles that are congruent. This means F = L, G = M and H = N. Dividing the measure of F over the measure of L leads to 1 (regardless of what the angles happen to be) due to the rule x/x = 1, where x is nonzero. The same thing happens with dividing the measures of angle G over angle M. We get 1 on both sides after simplifying this given equation, so it is a true equation.

-----------------

D. Similar triangles are not congruent, so their corresponding side lengths are not congruent either.

-----------------

E. As explained back in part C, the corresponding angles are congruent because we know the triangles to be similar. The ordering of the letters matter. Angles H and N are the third letters of FGH and LMN respectively, which is why they pair up and are congruent.

7 0
3 years ago
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