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3 years ago

Pls help this is easy but I a ton of stuff I need to do

Mathematics

2 answers:

mylen [45]3 years ago

7 0

Answer:

Two equations: (x + 2 + x + 2 + x + 2) & (3x + 6 = 18) ; x = 4

Step-by-step explanation:

x + 2 + x + 2 + x + 2 = 18

3x + 6 = 18

3x = 12

x = 4

cestrela7 [59]3 years ago

4 0

Answer:

x = 4

Explanation:

2 + 2 + 2 = 6

18 - 6 = 12

12 ÷ 3 = 4

4 = x

x = 4

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What is the simplified expression for -3(2x- y) + 2y + 2(x+y)2

Step2247 [10]

Answer:

7y-4x.

Step-by-step explanation:

I think that the last 2 shouldn't be there and the third option should be 7y-4x or all the options are incorrect.

-3(2x- y) + 2y + 2(x+y)

= -6x+3y + 2y+2x+2y

= -6x+2x+3y+2y+2y

= -4x+7y.

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2 years ago

There is a 40% probability that a student PASSES their first statistics exam. Using a Binomial Distribution, if we randomly sele

melamori03 [73]

The probability that more than 5 students will pass their exam is 0.0188416.

<h3>How to find the probability?</h3>

The probability that a student passes their examination = 40% = 0.4

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The probability that 6 students pass their exam =

$7C_{6} (0.4)^{6} (0.6)^{1}\\=7(0.4)^6(0.6)\\=0.0172032$

The probability that 7 students pass their exam =

$7C_{7} (0.4)^{7} (0.6)^{0}\\=(0.4)^7\\=0.0016384$

The probability that more than 5 students pass their statistics exam = 0.0172032 + 0.0016384

= 0.0188416

Therefore, we have found the probability that more than 5 students will pass their exam to be 0.0188416.

Learn more about probability here: brainly.com/question/24756209

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4 0

1 year ago

Evaluate 3x+y when x=1/3 and y=−7/4. Write your answer as a fraction in simplest form.

SOVA2 [1]

Answer:

3x+y

=3*1/3-7/4

=1-7/4

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6 0

2 years ago

Find the value of x. Round to the nearest tenth.

Charra [1.4K]

19/x=sin 20
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2 years ago

Read 2 more answers

Find the surface area of the cylinder use 3.14 for pi

elena55 [62]

Answer:

351.658 square in

Step-by-step explanation:

First find the circumference of the circle

C = 25.13

Find area of the circle

A = 50.27

Multiply the circumference by the height

25.13 × 10 = 251.3

Add 251.3 with 50.27 twice

251.13 + 50.27 + 50.27 ≈ 351.658

Therefore your answer is D) 351.658 square in

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2 years ago