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Vikki [24]
3 years ago
8

Is cos 314 positive, negative or zero

Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0
Cos (314) = .694 is positive
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A backyard pool has a concrete walkway around it that is 5' wide on all sides the total area of the pool and the walkway is 950'
Soloha48 [4]

The dimensions of the pool would give a quadratic equation x² + 28x - 770 = 0

<h3>How to determine the dimension</h3>

For the pool, we have that;

Let the width = x feet

Length = (x+8) feet

The pool alongside the walkway gives;

Width = x + 5 + 5 = (x + 10) feet

Length = x + 8 + 5 + 5 = (x + 18) feet

Total area of the pool with walkway = 950 square feet

Note that formula for area is given as

Area = length * width = 950

Equate the length and width

(x+18)  × (x + 10) = 950

Using the  FOIL method, we have;

(x × x )+ (x × 10) + (18 × x) + (18 × 10) = 950

x² + 10x + 18x + 180 -950 = 0  

collect like terms

x² + 28x - 770 = 0

Thus, the dimensions of the pool would give a quadratic equation x² + 28x - 770 = 0

Learn more about area of a rectangle here:

brainly.com/question/14137384

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3 0
1 year ago
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erastova [34]

Answer:

What?

Step-by-step explanation:

said that agian in egnilsh lol

4 0
3 years ago
Find the measure of each angle and tell which postulates or theorems you used <br> ?
Illusion [34]

Answer:

∠6=78° ∠7=102° ∠14=78°

Step-by-step explanation:

Angles 6 and 7 are supplementary angles so ∠a+∠b=180°

in this case it would be 102°+x=180° and you subtract 102° from 180° getting 78°

∠7 is the vertical angles postulate stating that any angles vertical to each other are eaqual

7 0
3 years ago
NEED HELP PLEASE SOMEONE!!!!
weqwewe [10]
Let me work this out really quick and I'll get back to you
4 0
3 years ago
What is the P(T,H,T,H) on 4 flips of a coin?<br><br> i need help
Katen [24]

Answer:

1/16

Step-by-step explanation:

Each coin flip is an independent event so the probabilities are independent

P(T,H,T,H) = P(T) P(H)  P(T) P(H)

                  = 1/2 * 1/2 * 1/2 * 1/2

                   = 1/16

5 0
3 years ago
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