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kow [346]
3 years ago
11

I need help on my homework! i've tried a couple of times on these 3 but im confused thanks

Mathematics
2 answers:
Yakvenalex [24]3 years ago
6 0

Answer:

24

Step-by-step explanation:

hope it helps brainliest pls

statuscvo [17]3 years ago
4 0
15/6=2.5 which is the scale factor since they are similar triangles. We divide each side of the large triangle by 2.5 to get the sides for the small triangle since they are similar. 20/2.5=8cm
25/2.5=10cm

For the second problem, you put 15/6 and set in equal to x/8 when you cross multiply you get 6x=120 then you divide x=20

For the last problem, you divide 43,75 by 5 then multiply it by 400 to get the kiloliters which equals 3,500.


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Solve please. Correctly<br> 3(1 - 2a) = -3a - 18
True [87]

Answer:

a = 7

Step-by-step explanation:

3(1 - 2a) = -3a - 18

3 - 6a = - 3a - 18

Add 18 to each side:

3 + 18 - 6a = - 3a - 18 + 18

21 - 6a = - 3a

Add 6a to each side:

21 - 6a + 6a = - 3a + 6a

21 = 3a

3a = 21

Divide each side by 3:

3a ÷ 3 = 21 ÷ 3

a = 7

6 0
2 years ago
If a bike is $125 how much will it be when its discounted by 20%
weeeeeb [17]

Answer:

160 pages.

Step-by-step explanation:

That is 125 - 0.20 * 125

= 125 - 25

= 160 pages.

6 0
3 years ago
Read 2 more answers
find the value of the variable. if your answer is not an interger, leave it in simplest radical form.
kotykmax [81]

Answer:

A

Step-by-step explanation:

using the sine ratio in the right triangle, then

sin 45° = \frac{opposite}{hypotenuse} = \frac{x}{5}

multiply both sides by 5

note the exact value of sin 45° = \frac{\sqrt{2} }{2}

x = 5 × sin 45° = 5 × \frac{\sqrt{2} }{2} = \frac{5\sqrt{2} }{2}




4 0
3 years ago
The diameter of a circle has endpoints P(–10,–2) and Q(4,6).
Luba_88 [7]
The answer is c. forgive me if i am wrong

7 0
3 years ago
Find the value of g(x)=2-x^2 and f(x)=2x-1 . f(-4)
Ivenika [448]

Answer:

f(-4) = -9

Step-by-step explanation:

f(x)=2x-1

Let x = -4

f(-4)=2*-4-1

      = -8 -1

      = -9

6 0
3 years ago
Read 2 more answers
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