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katovenus [111]
3 years ago
11

Lizzie has volunteered 20 hours at her town library. From now on, she plans to volunteer 5 hours per week at the library. Write

and algebraic expression to represent the total number of hours she will volunteer
Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

My equation would be y=20+5x

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3 years ago
Evaluate sec960°.<br> 1. -2<br> 2. - 2 sqrt3/3<br> 3. 2sqrt 3/3<br> 4. 2
Eduardwww [97]

Answer:

-2

Step-by-step explanation:

We want to evaluate;

\sec960\degree

We use the reciprocals of trigonometric ratios to obtain;

\sec960\degree=\frac{1}{\cos960\degree}

The 960 degree angle makes an angle of 60 degree with the positive direction of the x-axis and it is in the 3rd quadrant.

This implies that;

\sec960\degree=\frac{1}{-\cos60\degree}

We use special trigonometric ratios to obtain;

\sec960\degree=\frac{1}{-\frac{1}{2}}

\sec960\degree=-2

7 0
3 years ago
Read 2 more answers
In the right triangle, AC = BC = 2. What is AB?
olga55 [171]
Short Answer: x = 2*sqrt(2)
The Pythagorean Theorem states that 
a^2 + b^2 = c^2

Givens
a = 2
b = 2
c = ???

Sub and solve
2^2 + 2^2 = c^2
c^2 = 4 + 4
c^2 = 8                                  Take the sqrt of both sides of the equation
sqrt(c^2) = sqrt(8)                 Express 8 in it's prime factor form.
sqrt(c^2) = sqrt(2 * 2 * 2)

The rule about square roots is 
If you have a pair of prime factors under the root sign, you take out one of the prime factors and throw the other one away.

sqrt(c^2) = 2*sqr(2)

Answer x = 2*sqrt(2)
4 0
4 years ago
Read 2 more answers
Helppppppp pleaseeee
alex41 [277]

Answer:

D

Step-by-step explanation:

The area of the base of the prism is bh/2=13*5/2=32.5. Multiplying this by the length of the prism of 6, you get an area of 195 cubic units. Hope this helps!

5 0
3 years ago
Read 2 more answers
A line joins the points A (-2,-5) and B (4, 13).<br> (a) Calculate the length AB.
Oduvanchick [21]
The length of AB is 18.9 unit
3 0
2 years ago
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