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2 years ago

PLEASE HELP!!!!!!!!!!! ASAP!!!!!!!!!!!

Mathematics

1 answer:

asambeis [7]2 years ago

8 0

Answer:

at 1 pm

Step-by-step explanation:

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How do you solve this?

nalin [4]

So u have to add all the sides up.
which will give you 6 + 6√3 + 6 +6√3
because their opposite and parallel lengths and widths are equal
that gives you 12 + 12√3
so ans is 12m + 12√3m

7 0

2 years ago

7.5 x (2.6 + 2.4) - 7.5

Alexandra [31]

Answer:

hope this helped!

5 0

2 years ago

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Graph y < 1/3x + 1/2. What are the points???

mestny [16]

You don't have a graph there so idk if im right but i think its (0,2) and (3,1) plz tell me if im wrong :)

6 0

3 years ago

Read 2 more answers

on a standardized exam the scores are normally distributed with a mean of 70 and a standard deviation of 20. find the z of a per

KIM [24]

The z-score of a person who scored 128 on the exam is equal to 2.9

<h3>What is a z-score?</h3>

A z-score is also referred to as a z-value or standard score and it can be defined as a measure of the distance between a raw score and the mean, when standard deviation units are used.

Mathematically, the z-score of a given sample score in a normal distribution can be calculated by using this formula:

$z=\frac{x\;-\;u}{\sigma}$

Where:

x represents the sample score.
u represents the mean score.
σ represents the standard deviation.

Substituting the given parameters into the formula, we have;

Z-score, z = (128 - 70)/(20)

Z-score, z = 58/20

Z-score, z = 2.9

Read more on z-scores here: brainly.com/question/26714379

#SPJ1

5 0

1 year ago

Evaluate 4x exponent 2+ 2x-1 for x=9

olasank [31]

The value of given expression is 341

Solution:

Given that we have to find the value of given expression

<em><u>Given expression is:</u></em>

$4x^2 + 2x - 1$

Given value is x = 9

<em><u>Substitute x = 9 in given expression</u></em>

$\rightarrow 4(9)^2+2(9) - 1$

Solve the above expression

$\rightarrow 4 \times (9 \times 9) + 18 -1\\\\\rightarrow 4 \times 81 + 17\\\\\text{Multiply the terms 4 and 81 }\\\\\rightarrow 324 + 17\\\\\text{Add the numbers }\\\\\rightarrow 341$

Thus the value of given expression is 341

8 0

3 years ago