2 years ago

Please help me with this question i don’t understand it.

Mathematics

1 answer:

qwelly [4]2 years ago

3 0

I'll call the length L and the width W.

$l = 2w$

The perimeter is twice the sum of the length with the width

$138 = 2(l + w) \\ \\ 69 = 2w + w \\ \\ w = 23 \\ \\ l = 46$

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2 years ago

Read 2 more answers

Write a vector equation of the line that passes through point P(-4,11) and is parallel to a=[-3,8]. Then write parametric equati

Assoli18 [71]

Answer:

$\vec l = (-4, 11) + t\cdot (-3,8)$ , $x = -4 - 3\cdot t$ and $y = 11 + 8\cdot t$

Step-by-step explanation:

The vector equation of the line is:

$\vec l = \vec P + t \cdot \vec A$

$\vec l = (-4, 11) + t\cdot (-3,8)$

The parametric equations of the line are:

$x = -4 - 3\cdot t$ and $y = 11 + 8\cdot t$

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2 years ago

Determine the probability of a negative result for a batch of size 10 if the positivity rate

Vlad1618 [11]

The probability of a negative result for a batch will be "0.3487".

Given values are:

Positivity rate,

p = 10% or, 0.1

Batch size,

n = 10

Now,

The probability of negative result will be:

→ $P (batch \ negative) = (1-p)^n$

By substituting the values, we get

→ $=(1-0.1)^{10}$

→ $= (0.9)^{10}$

→ $= 0.3487$

Thus the answer above is right.

Learn more about the probability here:

brainly.com/question/17927863

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2 years ago

HELP !! im going to post a picture of this math problem . i need an answer and explanation asap ..

Diano4ka-milaya [45]

The 3rd one is the correct answer

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2 years ago

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Andrew [12]

Answer:

Find all of the factors of 72

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Step-by-step explanation:

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3 years ago