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3 years ago

I need help on this Pythagorean Theorem question would be nice if somebody helped quick

Mathematics

2 answers:

lina2011 [118]3 years ago

8 0

Answer:

Step-by-step explanation:

5^2 + 5^2 = x^2

25 + 25 = x^2

50 = x^2

$\sqrt{50}$ = x, 5 $\sqrt{2}$

x = approximately 7.07

valentinak56 [21]3 years ago

5 0

Answer:

Exact: SQRT 50

Approx: 7.07

Step-by-step explanation:

you take both of the 5s and square them.

So 5*5=25 and 5*5 is 25. Since the right angle is opposite the side you are trying to find you add those together to get 50. Then you take the SQRT of 50 because you are trying to solve for x via the pythagorean theorem.

So the exact is SQRT 50

and the approx is 7.07

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I need help with both of these questions.

Inessa [10]

On the first one
X= 14 and x= -12

On the second one
X= 7 and x= -7

5 0

2 years ago

The square based pyramid is cut horizontally at a height of 15cm to leave this frustum. Calulate the volume of the frustum.

allsm [11]

Answer:

The answer is given below

Step-by-step explanation:

The question is not complete. The correct question is:

A square based pyramid have a height of 30 cm and base of 10 cm. The The square based pyramid is cut horizontally at a height of 15cm to leave this frustum.

Answer:

The frustum would have a base of 10 cm and height of 15 cm. The lower base has a length of 10 cm. to calculate the upper base, we use the formula:

$\frac{height\ of\ frustum}{height\ of \ pyramid}=\frac{base \of\ upper\ edge}{base \of\ lower\ edge}$

Substituting:

$\frac{30}{15}=\frac{10}{b} \\ b=15*10/30=5$

The volume of the frustum is given by the formula:

$V=\frac{h}{3}(A_1+A_2+\sqrt{A_1A_2} )$

Where h is the height of the frustum = 15 cm, A1 is the area of the lower base = 10 * 10 = 100 cm², A1 is the area of the upper base = 5 * 5 = 25 cm²

Substituting gives:

$V=\frac{h}{3}(A_1+A_2+\sqrt{A_1A_2} )=\frac{15}{3}(100+25+\sqrt{100*25} )= 875\ cm^3$

7 0

3 years ago

What value of x makes the equation true?

nirvana33 [79]

$2(x - 9) = 9 \div ( - \frac{1}{3} ) \\$

$2(x - 9) = 9 \times ( - 3)$

$2(x - 9) = - 27$

$\frac{2(x - 9)}{2} = \frac{ - 27}{2} \\$

$x - 9 = - 13.5$

$x - 9 + 9 = - 13.5 + 9$

$x = - 4.5$

Thus option B is the correct answer.

5 0

3 years ago

A___ is a rule that assigns each value of the independent variable to exactly one value of the dependent variable.

xeze [42]

Answer:

The answer is a function

Step-by-step explanation:

plz mark brainliest if i was right or helpful

6 0

3 years ago

Read 2 more answers

The function y = 6.2(1.01)^x models a pest population in billions, where x is the number of years after 2000. What will be the p

DaniilM [7]

The correct answer is: 6.99 billion (as 6.986 billion is rounded off (to nearest hundredth place) to 6.99 billion)

Explanation:

The given function is: <span>y = 6.2(1.01)^x --- (1)

Where x = </span><span> number of years after 2000

It means that in 2012, the value of x would be 12 as the difference between 2012 and 2000 is 12 years.

Put x = 12 in equation (1):

(1) => y = </span>6.2(1.01)^12 = 6.986 billion = 6.99 billion

8 0

3 years ago