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3 years ago

HELP!!! It’s due is 20 minutes

Mathematics

2 answers:

miskamm [114]3 years ago

5 0

Answer:

Step-by-step explanation:

We shall use the pythogorean theorem. So, the hypotenuse is 37 and 15 is a^2.

So, we will have:

$15^2+x^2=37^2$

Then, we will have:

$225+x^2=1369$

Then, we will subtract 225 from both sides:

$x^2=1144$

We will then have:

$\sqrt{4\cdot286} = \sqrt{2^2\cdot286} \text{the 2 gets canceled out and we will get}\\2\sqrt{286}$ which is in simplest form.

Zinaida [17]3 years ago

4 0

Answer:

Step-by-step explanation:

33.8 Rounded

Use Pythagorean theorem :)

Brainliest?

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A cylinder has a radius of 7 cm and a height of 12 cm. Calculate the total surface area. (Take π = 22/7

ziro4ka [17]

Total surface area of cylinder :

[(22/7)(7)²] × 2 ( area for 2 circles )

[ 2(22/7)(7) ] ×12 ( circumference of circle × height )

836 cm²

i hope my solution helps :))

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2 years ago

Kiki has 1/6 pound of blueberries and 5/8 pound of raspberries.

Darina [25.2K]

Answer: Did this all by myself 1/6 is closer to 0 and 5/8 is closer to 1/2 so the answer is 1/2 0 then 1/2 then 1/3 again

Step-by-step explanation:

1/ 6 -5 /8 =(1 × 4 6 × 4) – (5 × 3 8 × 3) = 4 /24 – 15 /24 = 4 – 15 24 = – 11 24

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3 years ago

What is the value of 2x{6+[12/(3+1)}-1

Nata [24]

2 {6 + [12/(3 + 1)]} - 1
2 { 6 + 12/4} - 1
2 { 6 + 3 } - 1
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2 years ago

Read 2 more answers

1/4(-8x - 12) + -4 = 3/4(-8x - 12)

nekit [7.7K]

Here's our equation:

$\frac{1}{4} (-8x-12)-4=\frac{3}{4} (-8x-12)$

Factor out the left side

(-2x - 3) - 4 = 3/4 (-8x - 12)

Simplify

-2x - 7 = 3/4 (-8x - 12)

Factor out the right side

-2x - 7 = -6x - 9

Add 7

-2x = 6x - 2

Add 6x to isolate the variable

4x = -2

Divide by 4

x = - 1/2

Here is how I simplified both sides initially. I'll only be showing the right side because this is a LOT of typing.

Begin with 3/4 (-8x - 12)

Use rule $a*\frac{b}{c} = \frac{a * b}{c}$ to multiply

3(-8x-12)/4

Factor 3(-8x-12)

(-8x - 12) = (-4 * 2x - 4 * 3)

Simplify (-4 * 2x - 4 * 3)

-3 * 4 (2x+3)

- 12 (2x + 3)

Now that we've factored 3/4 (-8x - 12), we're left with- 12 (2x + 3)/4.

12/4 =3, giving us -3(2x + 3)

Distribute and simplify, then you're done.

8 0

3 years ago

An island is 3 kilometers due north of its closest point along a straight shoreline. A visitor is staying in a tent that is 13 k

spin [16.1K]

Answer:

The visitor should run 13 km due west from the tent

Step-by-step explanation:

Here we have;

Location of island = 3 km North of point on shoreline

Location of tent = 13 km East of point on shoreline

Running speed of visitor = 8 km/h

Swimming speed = 1 km/h

Distance of island from tent = $\sqrt{3^{2} + 13^{2} } = 13.34 km$

Since, time = distance/speed, it will take 13.34/1 hours or 13.34 hours to swim directly to the island.

However if the visitor first runs to the closest point on the shoreline to the island, then swims across to the island, it will take;

13/8 Hr + 3/1 hr = 37/8 hours or 4.625 hours only.

Therefore, to minimize the time it takes to reach the island, the visitor has to run 13 km west of the tent to first get to the closest point of the shoreline to the island before swimming across to the island.

3 0

2 years ago

Read 2 more answers