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Margaret [11]
4 years ago
5

Simplify the following; 8v + w + 7 - 8v + 2w 4c² + 6c - 3c² - 2c - 3 Thanks!

Mathematics
1 answer:
Dominik [7]4 years ago
3 0

Answer:

3w+7

c^2 + 4c - 3

Step-by-step explanation:

8v+w+7-8v+2w

8v-8v +w+2w +7

0+3w+7

3w+7

4c^2+6c-3c^2-2c-3

4c^2-3c^2 + 6c-2c -3

c^2+4c-3

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Part A
Deffense [45]

Answer: Not safe

Step-by-step explanation:

Let the angle of elevation of the ramp be θ, then:

\begin{aligned}&\sin \theta=\frac{1.5}{10}=0.15 \\&\theta=\sin ^{-1}(0.15) \approx 8.63^{\circ}\end{aligned}

But the maximum angle for the ramp cannot exceed 7.1°. The calculated angle of elevation will make it difficult, if not impossible, for motorized wheelchairs to get up the ramp.

Therefore, the ramp at the local library is not safe for motorized wheelchairs

5 0
2 years ago
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dem82 [27]

Answer:

The middle one because there is only 1 value of y for every value of x.

5 0
3 years ago
explain why it is important to know if a time is in a.m. or p.m. when figuring out how much time has elapsed.
Elenna [48]
It has to be pm I'm if it says for an example 5:00am you have to use pm now
5 0
3 years ago
Read 2 more answers
Complete A,B and 6 for 13 points.
kicyunya [14]

Answer:

a) 10

b) The $40+5 dollars for every ticket

c) See below

Step-by-step explanation:

a)

1. Let t=number of tickets

2. Writing an equation

Breaking even means that you earn the same amount of money for both.

40 +5t=70+2t

3. Solving the equation

40 +5t=70+2t

5t-2t=70-40

3t=30

t=10

So the answer to a) is 10.

b)

1. Using an equation

We already know that there are 2 equations for this problem. (40+5t, 70+2t)

So, we will substitute 20 for t.

40+5*20=40+100=140

70+2t=70+2*20=110

2. Comparing equations

140>110, so the first offer is better

C)

The owner lets you choose how you get paid because one option will be better for you, as some days you might not sell many tickets (so you will go with the $70+2 tickets), or some days you might sell many tickets (you will choose the $40+5 dollars/ticket).

3 0
3 years ago
It is possible to prove congruency of two triangles by comparing the size of corresponding angles only
Leno4ka [110]
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7 0
3 years ago
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