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3 years ago

Help ASAP plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics

1 answer:

Lostsunrise [7]3 years ago

8 0

Answer:

Step-by-step explanation:

since 28 is the amount of time it takes for him to mow a lawn, we have to have an answer that involves time, which is B.

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What is standard deviation? Please help me!

FromTheMoon [43]

Answer:

Hey!

Step-by-step explanation:

I got this off the internet for you.

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

Hope this helps! :)

Have a nice day♥

5 0

3 years ago

What is the answer to this question it is urgent

UkoKoshka [18]

Answer: the answer is D

Step-by-step explanation: may i please have brainliest.

4 0

3 years ago

Read 2 more answers

1. What is the factored form of q2 - 12q + 36? (1 point)

Novay_Z [31]

Step-by-step explanation:

${q}^{2} - 12q + 36 \\ = {q}^{2} - 6q - 6q + 36 \\ = q(q - 6) - 6(q - 6) \\ \huge \red{ \boxed {= (q - 6)(q - 6) }}\\ is \: the \: factored \: form.$

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4 years ago

Allen drove 90 miles in 2 and 1/4 hours at a constand speed, how many miles did he drive in one hour.

Bumek [7]

Use property of proportion:

miles time (hs)
90 2.25
x 1

x = 90 ÷ 2.25
x = 40 miles

8 0

3 years ago

The rate of change of the function f(x) = 8 sec(x) + 8 cos(x) is given by the expression 8 sec(x) tan(x) − 8 sin(x). Show that t

liq [111]

Answer:

Shown - See explanation

Step-by-step explanation:

Solution:-

- The given form for rate of change is:

8 sec(x) tan(x) − 8 sin(x).

- The form we need to show:

8 sin(x) tan2(x)

- We will first use reciprocal identities:

$8\frac{sin(x)}{cos^2(x)} - 8sin(x)$

- Now take LCM:

$8\frac{sin(x)- sin(x)*cos^2(x)}{cos^2(x)}$

- Using pythagorean identity , sin^2(x) + cos^2(x) = 1:

$8*sin(x)*\frac{1- cos^2(x)}{cos^2(x)} = 8*sin(x)*\frac{sin^2(x)}{cos^2(x)}$

- Again use pythagorean identity tan(x) = sin(x) / cos(x):

$8*sin(x)*tan^2(x)$

8 0

4 years ago

Read 2 more answers