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3 years ago

Pls answer this if you do I mark brainlest

Mathematics

2 answers:

MrRissso [65]3 years ago

7 0

Answer:

$268yd^2$

Step-by-step explanation:

The Surface Area formula for a rectangular prism is:

$2(wl+hl+hw)$

where <em>w </em>is the width, <em>h</em> is the height, and <em>l </em>is the length.

Plug each value into the formula and solve:

$2(8*10+3*10+3*8)=268yd^2$

If this helped, a brainliest answer would be greatly appreciated!

zimovet [89]3 years ago

6 0

Answer:

268

Step-by-step explanation:

2×(10×8 + 10×3 + 8×3) = 268 yards

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Please look at the picture and answer it.

Savatey [412]

Answer:

y=24

Step-by-step explanation:

4y+7+3y+5=180

7y=168

y=24

6 0

2 years ago

PLEASE HELP!!!!! How many 4-digit numbers divisible by 5, all of the digits of which are even, are there?

saul85 [17]

Answer:

I assume you know Arithmetic Progression .

so, we have to find the first and last 4-digit number divisible by 5

first = 1000 , last = 9990

we have a formula, $a_{n}$ = a + (n-1)d

here, $a_{n}$ is the last 4-digit number divisible by 5.

n is the number of 4-digit even numbers divisible by 5

d is the common difference between the numbers, which is 10 in this case

a is the first 4-digit number divisible by 5

9990 = 1000 + (n-1)*10

899 = n-1

n = 900

Hence, there are 900 4-digit even numbers divisible by 5

7 0

3 years ago

7 1/6 times 3/4 is??

Paladinen [302]

Answer:

$7\frac{1}{8}$

Step-by-step explanation:

Multiply across.

$(7\frac{1}{6})(\frac{3}{4})=7\frac{3}{24}$

Then Simplify.

$7\frac{3}{24}=7\frac{1}{8}$

8 0

3 years ago

HELP ,<br> simplify a^3 a^10

Dominik [7]

A^13. Your welcome. :))

3 0

3 years ago

A right triangle has a hypotenuse length of 12, and one side length of 9. find the missing side length. do the side lengths form

Rina8888 [55]

Use the Pythagorean theorem:

$a^2+b^2=c^2$

c - a hypotenuse

a, b - legs

We have: a = 9 and c = 12. Substitute:

$9^2+b^2=12^2$

$81+b^2=144$ <em>subtract 81 from both sides</em>

$b^2=63\to b=\sqrt{63}\\\\b=\sqrt{9\cdot7}\\\\b=\sqrt9\cdot\sqrt7\\\\ \boxed{b=3\sqrt{7}}$

A Pythagorean triple consists of three positive integers a, b and c, such that

$a^2+b^2=c^2$ .

$b=3\sqrt{7}$ is not positive integer.

<h3>The sides of the triangle do not form a pythagorean triple.</h3>

5 0

3 years ago

Pls answer this if you do I mark brainlest​

Pls answer this if you do I mark brainlest