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enot [183]
3 years ago
15

WILL MARK BRAINLIEST !!! find the indicated value for each of the figures shown or described

Mathematics
1 answer:
timama [110]3 years ago
6 0

Answer:

10. 9

In the first question we can solve using the Pythagorean theorem. It states that the hypotenuse in a right triangle or the longest side of the triangle, squared is equal to the other 2 sides, squared. Its expressed as so: C^2 = A^2 + b^2 where c is the hypotenuse and a and b are the other sides oft eh triangle.

Therefore,

15^2 = 12^2+x^2

225=144+x^2

81=x^2

x=9

__________________________________________________________

11. x=12

In this figure, there are 2 right triangles on the sides of the square. If we can find the lengths of the base of both triangles then we can find x using the Pythagorean theorem. the total base is 21 and the square is 11. 11+a+b=21. We can assume that both triangles are congruent and therefore we can solve this equation:

11+a+b=21

a+b=10

5+5=10

b=5

a=5

The bases of the two triangles are 5 and the hypotenuse is 13. Now we can solve using the Pythagorean theorem:

c^2 = a^2+b^2

13^2=5^2+x^2

169=25+x^2

144=x^2

144= 12 x 12

x=12

__________________________________________________________

12.

The diagnol of a triangle is the hypotenuse and since the length is the square root of 3, we have all the information we need.

c^2 = a^2+b^2

2^2 = (square root of 3)^2+b^2

4=3+b^2

1=b^2

b=1

Step-by-step explanation:

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4 0
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An organic farm has been growing an heirloom variety of summer squash. A sample of the weights of 40 summer squash revealed that
natta225 [31]

Answer:

b. 0.0228

Step-by-step explanation:

We are given that

n=40

Mean,\mu=402.7 g

Standard deviation, \sigma=8.8g

We have to find the probability hat the mean weight for a sample of 40 summer squash exceeds 405.5 grams.

P(x>405.5)=P(\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}>\frac{405.5-402.7}{\frac{8.8}{\sqrt{40}}})

P(x>405.5)=P(Z>\frac{2.8}{\frac{8.8}{\sqrt{40}}})

P(x>405.5)=P(Z>2.01)

P(x>405.5)=1-P(Z\leq 2.01)

P(x>405.5)=1-0.977784

P(x>405.5)=0.022216

Hence, option b is correct.

5 0
2 years ago
Help (>﹏<)
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6 0
3 years ago
Find the values of a and b. The diagram is not to scale. Its not c
OlgaM077 [116]

Answer:

Option A is correct : . a=115, b=71

Step-by-step explanation:

Consider the attached file.

AB is parallel to CD.

∠1+ a° = 180° (since sum of  linear pairs is 180°) ---(A)

And ∠1 = ∠2  because they are corresponding angles.

∠1 = ∠2 = 65°

Putting this value in (A)

⇒65°+ a° = 180°

⇒a° = 180°-65°

⇒a° = 115°

∠3+ 109° = 180°(since sum of  linear pairs is 180°) ---(B)

⇒∠3 = 180°-109°

⇒∠3 = 71°

Now, ∠3 = b° (because they are corresponding angles and corresponding angles are equal)

⇒∠3=  b°= 71°

Thus Option A is correct : . a=115, b=71

 



7 0
3 years ago
Read 2 more answers
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