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Arturiano [62]
3 years ago
8

2.25(a+1.3)=20.7 what is the value of a ? ​

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0

Answer:

7.9

Step-by-step explanation:

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SLOPE IN MATH PLEASE HELP I’LL MARK BRAINLIEST + A LOT OF POINTS
Fed [463]

Answer:

-7/9

Step-by-step explanation:

here you go I hope it helps

7 0
3 years ago
Please simplify this expression ! Show your work and please answer this !!
tangare [24]

Answer:

18q^2 - 52q + 32

Step-by-step explanation:

We can use the Distributive Property to solve this.

(2q-4)(9q-8)

2q(9q) + 2q(-8) + -4(9q) + -4(-8)

18q^2 - 16q - 36q + 32

18q^2 - 52q + 32

18q^2 - 52q + 32

6 0
3 years ago
In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?
Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

3 transistors from a set of 100. So

C_{100,3} = \frac{100!}{3!(100-3)!} = 161700

So 161700 ways.

6 0
3 years ago
30 POINTS!!!! PLEASE HELP!!! <br><br><br> What is the slope of the line that contains these points?
castortr0y [4]

Answer:

negative

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
sylvia rented a boat for $16.50 per hour. Her total rental fee was 49.50. For how many hours did Sylvia rent the boat
Finger [1]
49.50/16.50=3 hours is your answer
3 0
3 years ago
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