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3 years ago

Can you please help !!!

Mathematics

2 answers:

allsm [11]3 years ago

8 0

Answer:

19) x=-3, 20) a=1, 21) b=3, 22) x=8

Step-by-step explanation:

hope that helps, those are the answeres to each question. :)))

AlladinOne [14]3 years ago

6 0

Answer:

Step-by-step explanation:

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Solve 2x-4÷ 5 = 4 really need help fast

MrRa [10]

Answer:

x=12

Step-by-step explanation:

2x-4=20

2x=24

x=12

4 0

2 years ago

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Required information NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part A club

algol13

Answer:

491400

Step-by-step explanation:

Given : A club has 28 members.

To Find : . How many ways are there to choose four members of the club to serve on an executive committee?

Solution:

We are supposed to choose four members of the club out of 28.

So, we will use combination

Formula : $^nC_r=\frac{n!}{r!(n-r)!}$

n = 28

r = 4

Substitute the values :

$^{28}C_{4}=\frac{28!}{4!(28-4)!}$

$^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24!}{4!(24)!}$

$^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24}{4 \times 3 \times 2 \times 1}$

$^{28}C_{4}=491400$

Hence there are 491400 ways o choose four members of the club to serve on an executive committee

8 0

3 years ago

What is (8 - 2) - 6?

elixir [45]

Answer:0

Step-by-step explanation:

(8 - 2) - 6

6-6

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2 years ago

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Im having trouble with my homework can u tell me what is x=3y

viktelen [127]

That's an equation that describes a linear and proportional relationship between 'x' and 'y'. The graph of that equation is a straight line through the origin whose slope is. 1/3 .

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3 years ago

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Please answer this: 27+4×(8−4)

Andru [333]

$43$

<h2>hope it helps!</h2>

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2 years ago

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