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3 years ago

Please help! It’s important!!

Mathematics

1 answer:

Vika [28.1K]3 years ago

5 0

Answer:

option 3

Step-by-step explanation:

Since definition of slope is:

$slope = \frac{rise}{run}$

the ratio:

$\frac{bd}{da} = \frac{ce}{ea}$

explains the best (Ratio option 3)

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Help, find the length of the line

kodGreya [7K]

Answer:

Step-by-step explanation:

Square the lengths of the sides that meet at the right angle. Then add them together and find the square root.

$6^{2} = 32\\10^{2} = 100\\\\32 + 100 = 132\\\sqrt{132} = about 12$

3 0

3 years ago

Scientists bounce a laser beam off a mirror. It reflects at the same angle as it hits the

Paul [167]

Answer and Step-by-step explanation:

Simply use triangles to find the length of the lasers.

The first triangle consists of the sides of 12 inches, 18 inches, and the laser (which is the hypotenuse).

Use the <u>Pythagorean theorem</u> to solve for the hypotenuse.

( $a^{2}+ b^{2} = c^{2}$ )

$12^{2} +18^{2} = l^{2} \\\\144 + 324 = l^{2} \\\\468 = l^{2} \\\\Square-root-both-sides\\\\\ \\\sqrt{468} = l$

l ≈21.633

Now, we solve the other triangle.

$9^{2} +6^{2} = l^{2} \\\\81 + 36 = l^{2} \\\\117 = l^{2} \\\\Square-root-both-sides\\\\\sqrt{117} =l\\l = 10.8167$

Now, add those two hypotenuses.

21.6333 + 10.8167 = 32.45

32.45 rounds up to 32.5

32.5 is the total distance the laser beam travels.

#teamtrees #WAP (Water And Plant)

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3 years ago

Is 99 a rational number or integer or whole number

PilotLPTM [1.2K]

Answer:

Since 99 is not a perfect square, it is an irrational number.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Josiah works at an electronics store as a salesperson. Josiah earns a 2% commission on the total dollar amount of all phone sale

salantis [7]

Answer: the equations are

0.02x + 0.07y = 156

y = 300 + x

Step-by-step explanation:

Let x represent the total dollar amount of phone sales that she makes.

Let y represent the the total dollar amount of computer sales that she makes.

Josiah earns a 2% commission on the total dollar amount of all phone sales he makes, and earns a 7% commission on all computer sales. She earned a total of $156 in commission. This means that

0.02x + 0.07y = 156 - - - - - - - - - - -1

Josiah had $300 more in computer sales than in phone sales. This means that

y = 300 + x

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3 years ago

Read 2 more answers

The product of the square of a number and 5

bearhunter [10]

Let the number be x, the square of x is x^2, then
The product of the square of x and 5 is 5x^2.

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4 years ago