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BaLLatris [955]
2 years ago
12

........................

Mathematics
1 answer:
seropon [69]2 years ago
3 0

Answer:

......................................<3

Step-by-step explanation:

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At the end of last year mark odometer reads 74,924 miles.at the end of this year , his odometer. reads 90,405 miles. How many mi
maks197457 [2]
Mark drove 165,329 miles year
6 0
3 years ago
Find the value of z such that 0.96420.9642 of the area lies between −z−z and z. round your answer to two decimal places.
Brut [27]
If z represents the variable of the standard normal distribution curve N(0,1), which is symmetrical about z=0, then we look for
P(z)-P(-z)=0.9642=1-2P(-z) => P(-z)=(1-0.9642)/2=0.0179
=>
-z=-2.099192
=> z=2.099192
Check:
P(2.099192)-P(-2.099192)=0.9642  ok
7 0
4 years ago
1. Homer has an idea for a new donut shop. He wants to design the donut shop so that the rectangular
Tju [1.3M]

Solving a <em>system of equations</em>, it is found that since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.

The perimeter of a <u>rectangle of length l and width w</u> is given by:

P = 2(l + w)

The area is:

A = lw

In this problem, perimeter of 63.5 m, hence:

2l + 2w = 63.5

2l = 63.5 - 2w

l = 31.75 - w

Area of 225 m², hence:

lw = 225

(31.75 - w)(w) = 225

w^2 - 31.75w + 225 = 0

Which is a quadratic equation with coefficients a = 1, b = -31.75, c = 225.

Then:

\Delta = b^2 - 4ac = (-31.75)^2 - 4(1)(225) = 108.0625

w_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{31.75 + \sqrt{108.0625}}{2} = 21.1

w_2 = \frac{-b - \sqrt{\Delta}}{2a} = \frac{31.75 - \sqrt{108.0625}}{2} = 10.68

Since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.

A similar problem is given at brainly.com/question/10489198

6 0
3 years ago
At a company meeting, there were 996 people in attendance. 25% of them were managers. How many managers were in the meeting?
nalin [4]

They are asking for managers so 996 of them are there, 25% are managers

Change the percent to a decimal (divide the percent number by 100)

You get 0.25

So multiply 996 by 0.25

You get 249

So there are <u>249 managers at the meeting</u>

5 0
3 years ago
Please Help!!!! Algebra 2.
Paul [167]
W/12+ 1/4

Wait for another person
6 0
3 years ago
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