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3 years ago

7

I turned it in and it says we got one wrong(out of those blanks). I've checked over it several times but I can't figure out whic

h one. Could you guys help me figure out which one and what is the answer?

1 answer:

Colt1911 [192]3 years ago

8 0

Answer:

Try as percentages so

7) 37.5%

8) 50%

9) 12.5%

10) 62.5%

11) 87.5%

12) 50%

13) 62.5%

14) 37.5%

15) 100%

Step-by-step explanation:

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Pls help I will not let me add the screenshot so I'm going to try and explain. so there is a rectangle the top measures 10m and

-BARSIC- [3]

Answer:

£23

Explanation:

6x10=60
2x1.5=3
3.14x2^2=12.566
60-3-12.566=44.433
44.43/10=4.43
5 bags
5x4.60=23
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3 0

2 years ago

What is the area of a right triangle with a hypotenuse of 12 and 1 leg is 10??

Agata [3.3K]

Hey there! :)

Area of triangles → (base × height) ÷ 2

The base and height are the 2 legs. You have to find the length of the other leg to find the area, using the Pythagorean Theorem.

a² + b² = c² → c² - a² = b²

c = 12
12² = 12 × 12 = 144

a = 10
10² = 10 × 10 = 100

144 - 100 = 44

√44 = 6.6
_____________________________________________________________

Area of triangles → (base × height) ÷ 2

Base: 10
Height: 6.6

6.6 × 10 = 66

66 ÷ 2 = 33

The area is 33

Hope this helps :)

5 0

2 years ago

Can someone PLEASE solve this quadratic equation by factoring with the steps? :(

salantis [7]

Answer:

There are no simple factors to this expression. You can however solve for x, giving you:

x = -1 ± √(y + 3)

Step-by-step explanation:

There is no simple pair of factors to this equation, so we'll have to go through the full process. You can see that by observing that there is no pair of rational numbers that add to make 2 and multiply to make -2. We can however solve for x:

$y = x^2 + 2x - 2\\y + 2 = x^2 + 2x\\y + 3 = x^2 + 2x + 1\\y + 3 = (x + 1)^2\\(x + 1)^2 = y + 3\\x + 1 = \pm \sqrt{y + 3}\\x = -1 \pm \sqrt{y + 3}$

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3 years ago

Evaluate 3x^3 - 5y^2 x=5 y=2

Sliva [168]

Answer:

355

Step-by-step explanation:

3 $x^{3}$ -5 $y^{2}$ =3*5³-5*2²

3*5³-5*2²=3*125-5*4

3*125-5*4=375-20

375-20=355

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3 years ago

To solve for 51 x 4, Tamara used mental math by thinking about 51 + 51 + 51 + 51. Which best describes the strategy she used to

sergey [27]

Its faster in adding isn't always right when you are multiplying numbers

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3 years ago