All categories

3 years ago

Please help! Solve for x.

Mathematics

1 answer:

aalyn [17]3 years ago

5 0

Answer:

1. 15.9

2. 12

3. 7.29

4. 20.8

5. 11.0

Step-by-step explanation:

We can use the Pythagorean Theorem to solve for x (a squared minus b squared equals c squared)

Example number 1 is solved by 17 squared - 6 squared equals 253

You do square root and get 15.90

Number 4 is you have to divide 24 by 2 because it is one of the sides

So it is 24 squared minus 12 squared

You find square root and get 20.80

You might be interested in

Find the leg of each isosceles right triangle when the hypotenuse is 5 square root 6

kozerog [31]

Hypotenuse = 5√6

Let the length of each leg be x, since it is Isosceles .

x² + x² = (5√6)²

2x² = (5 * 5 * √6 * √6)

2x² = 150

x² = 150/2

x² = 75

x = √75

x = √(25 * 3)

x = √25 * √3

x = 5√3

5 0

3 years ago

7^3 times 7^-7 times 7

dusya [7]

Hello there! :)

Answer: $\frac{1}{343}$

*The answer must have a fraction.*

Step-by-step explanation:

Lesson: Zero and Negative Exponents.

Distributive property: a(b+c)=ab+ac

First, you apply exponent rule.

$a^b*a^c=a^b^+^c$

$7^-^3$

$\frac{1}{7^3}=7^3=7*7*7=343$

Final answer: $\frac{1}{343}$

Hope this helps!

Thanks!

-Charlie

Have a great day!

4 0

3 years ago

The product of a number and negative four is negative twenty-eight. What is the number?

Katyanochek1 [597]

Answer:

The number is 7. If you divide -28 by -4 you get 7, 7×-4=-28

6 0

3 years ago

URGENT!!! Please help!

serious [3.7K]

Answer:

13 ft

Step-by-step explanation:

c^2 = a^2 + b^2

C^2 = 5^2 + 12^2

C^2 = 25 + 144

c^2 = 169

c = 13 ft

3 0

3 years ago

Help!! Express -0.4 as a fraction in simplest form.

charle [14.2K]

$\tt{Hey~there!$

$\tt{Let's~write~-0.4~as~a~fraction~in~simplest~form.$ $\tt{In~order~to~do~that,~you~have~to~the~right~of~the~decimal~over~10.~Then,~you~have~to$ $\tt{reduce.$

$\tt{-0.4\rightarrow\frac{-2}{5}$

$\boxed{\tt{\frac{-2}{5}}}$

$\tt{Hope~this~helps!$

$\boxed{\tt{-TestedHyperr}}$

6 0

3 years ago