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MrRissso [65]
3 years ago
8

I need the work to this please

Mathematics
1 answer:
wlad13 [49]3 years ago
6 0

Answer:

  ? = 14

Step-by-step explanation:

If ∆EFG ~ ∆CBA, we have the proportion

  FG/FE = BA/BC . . . . . any pairs of corresponding sides will have the same ratio for similar triangles. (It is convenient to put the unknown in the numerator.)

  ?/18 = 21/27 . . . . . . filling in the given numbers

Multiplying by 18, we have ...

  ? = 18·21/27

  ? = 14

_____

If the triangles are not designated as being similar, the problem is unworkable.

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PLZ HELP ME! THIS IS A GRADE! NO LINKS!
Shtirlitz [24]

Answer:

see explanation.

Step-by-step explanation:

2(10 * 4 * 7) is a surface area.

7 * 4 * 10 is volume.

2(10 * 4 + 10 * 7 + 4 * 7) is surface area.

10 + 4 + 7 is neither.

2 * 7 * 4 + 2 * 10 * 7 + 2 * 4 * 10 is neither.

hope this helps.

8 0
2 years ago
Please huryyyyyyyyy please helpppppp
Marrrta [24]

The square root of integers where one can get the number 2.71 will be between 7 and 8.

The square root of integers where one can get the π will be between 9 and 10

<h3>How to illustrate the value?</h3>

It should be noted that the <em>square</em> of a number simply means multiplying the number by itself.

Therefore, the.square root of integers where one can get the number 2.71 will be between 7 and 8.

Also, the square root of integers where one can get the π will be between 9 and 10

Learn more about computations on:

brainly.com/question/4658834

#SPJ1

5 0
2 years ago
I need help with this question please look at the picture
Leno4ka [110]

Answer:

18

Step-by-step explanation:

-11 - 7 = -18

|-18| = 18

6 0
3 years ago
Read 2 more answers
Factor the quadratic expression in the equation y=2x^2+28x+96 and use the factors to find the zeros of the equation. Then, use t
gavmur [86]

Answer:

x=-7

Step-by-step explanation:

We have been given an equation y=2x^2+28x+96. We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.

Let us factor our given equation as:

2x^2+28x+96=0

Dividing both sides by 2:

x^2+14x+48=0

Splitting the middle term:

x^2+6x+8x+48=0

(x^2+6x)+(8x+48)=0

x(x+6)+8(x+6)=0

(x+8)(x+6)=0

Using zero product property:

(x+8)=0\text{ (or) }(x+6)=0

x+8=0\text{ (or) }x+6=0

x=-8\text{ (or) }x=-6

Therefore, the zeros of the given equation are x=-8\text{ (or) }x=-6.

We know that the line of symmetry of a parabola is equal to the x-coordinate of vertex of parabola.

We also know that x-coordinate of vertex of parabola is equal to the average of zeros. So x-coordinate of vertex of parabola would be:

\frac{-8+(-6)}{2}=\frac{-14}{2}=-7

Therefore, the equation x=-7 represents the line of symmetry of the given parabola.

4 0
3 years ago
Select the correct answer.
adoni [48]
The correct answer is b) 2
8 0
3 years ago
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