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CaHeK987 [17]
3 years ago
7

HELPPPPPP FASTTTTTTT PLS

Mathematics
1 answer:
e-lub [12.9K]3 years ago
5 0

Answer:

a nd c

Step-by-step explanation:

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At rehearsal for the school play, jack sings three times as many songs as Jennifer, and then dances to 5 more songs, just to sho
Brilliant_brown [7]

Step-by-step explanation:

3x+5=44

3x=44-5

3x=39

x=39÷3

x=13

6 0
2 years ago
Simplify the expression.<br><br>e^-5 x e^2
aliina [53]

Answer:

1 over e^3

Step-by-step explanation:

sos

8 0
3 years ago
Solve for (a+1)/2=1/a.
LenKa [72]

Hello!

To solve this, you are trying to convert one side to a quadratic equation and the other to just 0. Then, solve the equation.

----

First, move the /2 to the other side of the equation.

(a+1)/2 = 1/a

a+1 = 2/a

Next, multiply both sides by a.

a+1 = 2/a

a^{2} +a=2

And then subtract both sides by 2. This will get you to a quadratic equation.

a^{2} +a=2

a^{2} +a-2=0

Now, factor the equation. When we're factoring, we are looking for the form (a + b)(a + c), where b + c must equal 1 (the coefficient of a) and b*c must equal -2. In this case, b = 2, and c = -1.

Therefore:

a^{2} +a-2=0

(a + 2)(a - 1) = 0

To get the answer, recall that anything multiplied by 0 is equal to 0. Therefore, to get the left side to equal 0, either (a + 2) or (a - 1) must equal 0. To do this, a must either be -2 or 1.

Therefore, a = -2, or a = 1.

----

Check your work:

(-2 + 1)/2 = 1/-2

-1/2 = -1/2

(1 + 1)/2 = 1/1

2/2 = 1/1

1 = 1

----

Hope this helps!

6 0
3 years ago
Which table of values corresponds to the graph below?
olga nikolaevna [1]

Answer:

Step-by-step explanation:

No Graph

8 0
3 years ago
A small town surveys 250 adults, 180 of which are parents, about whether or not a park should be expanded. The results showed th
Lelechka [254]
What is the question? If you're looking for percentages then 76% of the of the adults thought the park should be expanded, 60% of the adults that wished for the park to be expanded were parents, the other 16% were adults without children, and 83% of the total parents wished for the park to expand (this isn't in reference to all of the adults, only to the parents.)
4 0
3 years ago
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