Explain how you can check your solutionto the equation. Then check the solution.

Mathematics

1 answer:

Hoochie [10]3 years ago

4 0

Answer:

To check if a given value is a solution to an equation:

Evaluate the left-hand side expression at the given value to get a number.

Evaluate the right-hand side expression at the given value to get a number.

See if the numbers match.

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Please help me in this question

charle [14.2K]

Number defective=4
number of non-defective=total-defective
=20-4
=16
the questions asked for 1 defective
so we choose only 1 defective from 4 defective items
4C1

and for 1 non-defective
we choose only 1 non-defective from 16 non-defective items
16C1

we choose 2 items from 20 items
so 20C2

answer:
probability= [(4C1) * (16C1)] /(20C2)
=32/95

6 0

2 years ago

Which expression is equivalent to 4^-5?

Basile [38]

Since there is a negative exponent, you need to first convert that into a positive exponent which is going to be 1/4^5
Then, we can find out the answer by simply breaking apart the exponents into 5 groups of 4.
1/(4)(4)(4)(4)(4)
Answer: B

7 0

3 years ago

Read 2 more answers

A customer’s total cell phone bill this month is $50.50. The company charges a monthly fee of $18 plus five cents for each call.

astra-53 [7]

650 calls

your equation would be n=50.50-18/.05
n=32.5/.05
n= 650

5 0

3 years ago

Nolan rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour?

boyakko [2]

Here, to find the average rate of change, you would simply divide 270 by 63. And when that is done, you would get a long decimal. 4.285714285714286

And since you obviously can't put in such a long decimal as your answer, you would round it instead. Once rounded, you would end up with 4.29 (because the number after 8 is five, which rounds up, which would turn the 8 to 9.)

8 0

3 years ago

Please help i need to finish this! thank you

jolli1 [7]

Answer:

x = 0

Step-by-step explanation:

0 = x²

√(0) = x

x = 0

Screenshot of Desmos graph attached showing y = x² and y = 0 intersecting.

3 0

3 years ago

Explain how you can check your solutionto the equation. Then check the solution.​

Explain how you can check your solutionto the equation. Then check the solution.