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3 years ago

7

Please help I’ll mark you as brainliest if correct!

1 answer:

Zigmanuir [339]3 years ago

5 0

Answer:

B

Step-by-step explanation:

brainliest?

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In a classroom of 20 students, 70% of them have brown eyes. If a teacher picks two students at random to pass out supplies, what

antiseptic1488 [7]

Answer:

6/20 can I get brainliest pleast

Step-by-step explanation:

$\frac{70}{100} \times 20 = 14 \\ 20 - 14 = 6 \\$

there is a chance that the teacher will pick a student without brown eyes 6/20 times

4 0

2 years ago

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

likoan [24]

Answer:

$1017.9ft ^{3}$

Step-by-step explanation:

$volume \: of \: cylinder \\ v = \pi \times r {}^{2} \times h \\ = \pi \times 9^2 \times 4 \\ = 1017.9$

4 0

2 years ago

A rectangular swimming pool is twice as long as it is wide. A small concrete sidewalk surrounds the pool and is a constant 2 fee

Naddika [18.5K]

Answer:

The dimensions of the pool are:

Width: 8.944 feet

Length: 17.888 feet

Step-by-step explanation:

From Geometry, the area of a rectangle ( $A$ ), measured in square feet, is determined by the following equations:

$A = w\cdot l$ (1)

Where:

$w$ - Width, measured in feet.

$l$ - Length, measured in feet.

If we know that $w = x$ , $l = 2\cdot x$ and $A = 160\,ft^{2}$ , then we get the following second order polynomial:

$2\cdot x^{2}-160 = 0$ (1)

And we solve the expression for $x$ :

$2\cdot x^{2} = 160$

$x^{2} = 80$

$x = \sqrt{80}\,ft$

$x \approx 8.944\,ft$

Then, the dimensions of the pool are, respectively:

$w \approx 8.944\,ft$ and $l \approx 17.888\,ft$

5 0

2 years ago

3x - 12y = -30 and x - 6y = -12

forsale [732]

check attached file it has the answers

3x =-18

X= -12

8 0

3 years ago

Read 2 more answers

Simplify (write without absolute value sign): |x+3|, if x>2

Bas_tet [7]

Answer:

5

Step-by-step explanation:

Substitute 2 in for x

|2+3| = 5

This would take the absolute value of the answer, or in other words once you solve the equation it will remove any negatives to return a positive number. I took the test and I have links to prove it.

3 0

2 years ago