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artcher [175]
2 years ago
9

~Please help!~ Please show work :)

Mathematics
2 answers:
kondaur [170]2 years ago
7 0
3-4
12-x

3x= 48

x = 48/3

x= 16
Arada [10]2 years ago
5 0
3:4
6:8
9:12
12:16
 Answer: 12:16
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Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
Firdavs [7]

Answer:

18.75 ft

Step-by-step explanation:

The given scenario can be drawn as shown in the following attachment.

Given that,

m\angle DCE=\angle ACB and m\angle DEC=\angle ABC=90^{\circ}

Therefore, \Delta ABC\sim \Delta DEC

\Rightarrow \dfrac{AB}{DE}=\dfrac{BC}{EC}

\Rightarrow \dfrac{AB}{5}=\dfrac{15}{4}

\Rightarrow AB=\dfrac{15\times 5}{4}=18.75 ft

AB is the height of the house.

7 0
3 years ago
Read 2 more answers
Pls help<br><br> Given: △ABC, CM⊥ AB, BC = 5, AB = 7<br> CA = 4 sqrt(2)<br> Find: CM
babymother [125]

Answer:

The general plan is to find BM and from that CM. You need 2 equations to do that.

Step One

Set up the two equations.

(7 - BM)^2 + CM^2 = (4*sqrt(2) ) ^ 2 = 32

BM^2 + CM^2 = 5^2 = 25

Step Two

Subtract the two equations.

(7 - BM)^2 + CM^2  = 32

BM^2 + CM^2         = 25

(7 - BM)^2 - BM^2 = 7               (3)

Step three

Expand the left side of the new equation labeled (3)

49 - 14BM + BM^2 - BM^2 = 7    

Step 4

Simplify And Solve

49 - 14BM = 7              Subtract 49 from both sides.

-49 - 14BM = 7 - 49

- 14BM = - 42              Divide by - 14

BM = -42 / - 14

BM = 3

Step  Five

Find CM

CM^2 + BM^2 = 5^2

CM^2 + 3^2 = 5^2        Subtract 3^2 from both sides.

CM^2 = 25 - 9            

CM^2 = 16                     Take the square root of both sides.        

sqrt(CM^2) = sqrt(16)

CM = 4    < Answer

Step-by-step explanation:

6 0
2 years ago
Find the area of the figure.
valkas [14]

Answer:

37.5 Units

Step-by-step explanation:

8 0
2 years ago
a small town has about 8000. a random sample of 100 people finds out that 50 are in favor of renovating some of the towns rundow
hodyreva [135]

Answer:

4000

Step-by-step explanation:

Out of their sample half of the people are in favor meaning that half of the total are also in favor and half of 8000 is 4000

I hope this helps and please don't hesitate to ask if there is anything still unclear!

3 0
2 years ago
Identify the number of terms in this polynomial.<br> 5k^5+7k-2
Sphinxa [80]

Answer:

cuatro terminos

6 0
2 years ago
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