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Fofino [41]
3 years ago
9

Determine the solution set of x^2-80=0

Mathematics
1 answer:
Goryan [66]3 years ago
5 0
<span>x^2-80=0
</span><span>x^2 = 80
x^2 = 16 (5)
x = 4</span>√5 and x = -4<span>√5</span>
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Pedro and Carmela are cleaning their kitchen. It takes Pedro 3 hours to clean the kitchen by himself, while Carmela can clean th
Igoryamba

Answer:

B

Step-by-step explanation:

Here, we want to choose the equation representing the time it will take if they worked together

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pedro will work at a rate of t/3

Camela will take t/2

So the joint rate will be

t/2 + t/3

This joint rate will be equal to 1

Thus, we have

t/2 + t/3 = 1

5 0
3 years ago
A boy walks 58 feet up a ramp having a 22.5 degree inclination. how high is he standing from the ground?
yKpoI14uk [10]

Boy is 22.5 feet high from the ground

The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec). In geometry, trigonometry is a branch of mathematics that deals with the sides and angles of a right-angled triangle. Therefore, trig ratios are evaluated with respect to sides and angles.

The given question can be solved by sin, as value of perpendicular is to be evaluated and height and angle is provided. Let height from the ground be x

sin(22.5°) = x / 58

x = 58sin22.5 = 58(.38258)  =  22.5 feet high.

Thus the Boy is 22.5 feet high from the ground.

Learn more about trigonometry here :

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6 0
2 years ago
Hi thank you for helping me​
svetlana [45]

Answer:

Step-by-step explanation:

4 + 2x < 6 + 6x

4 - 4x < 6

-4x < 2

x > -1/2

7 0
3 years ago
Read 2 more answers
Can someone answer this please
choli [55]
The awenser of the problem is A
5 0
3 years ago
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Which of the following is a composite number? <br><br> A. 63<br> B. 19<br> C. 1<br> D. 0
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The composite number is A.63. 1 is neither a prime or composite. 19 is a prime. 0 is a trick honestly, it isn't a prime or a composite
6 0
3 years ago
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