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4 years ago

Which of the following ordered pairs are the CORRECT answers???

Mathematics

1 answer:

Vilka [71]4 years ago

5 0

A,C,E
you should check that the second number is more than 7 and if you multiply the first number by 2 you will get less than the second number.

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. Solve by factoring: x3 – 22 – 72x = 0

11Alexandr11 [23.1K]

The answer is x=-22/69
If you need the step by step let me know.

5 0

3 years ago

Solve for x: 7x + 15 = 38

Alexeev081 [22]

7x+15=38
7x=38-15
7x=23
x=23/7

4 0

3 years ago

Read 2 more answers

Solve the equation using the quadratic formula. 262 – 3b+85=-5

liberstina [14]

Answer:

b= 352/3

or b= 117.33

Step-by-step explanation:

262-3x+85=-5

-3x+(262+85)=-5

simplify the arithmetic

-3x+347=-5

Group all constants on the right side of the equation

-3x+347=-5

Subtract from both sides:

-3x+347-347=-5-347

Simplify the arithmetic:

-3x=-5-347

-3x=-352

isolate the x

-3x=-352

Divide both sides by -3

-3x/-3}=-352/-3}

Cancel out the negatives

3x/3}=-352/-3

Simplify the fraction

x= -352/-3

Cancel out the negatives

x=352/3

8 0

2 years ago

Question : In the given figure , ∆ APB and ∆ AQC are equilateral triangles. Prove that PC = BQ.

lorasvet [3.4K]

Answer:

See Below.

Step-by-step explanation:

We are given that ΔAPB and ΔAQC are equilateral triangles.

And we want to prove that PC = BQ.

Since ΔAPB and ΔAQC are equilateral triangles, this means that:

$PA\cong AB\cong BP\text{ and } QA\cong AC\cong CQ$

Likewise:

$\angle P\cong \angle PAB\cong \angle ABP\cong Q\cong \angle QAC\cong\angle ACQ$

Since they all measure 60°.

Note that ∠PAC is the addition of the angles ∠PAB and ∠BAC. So:

$m\angle PAC=m\angle PAB+m\angle BAC$

Likewise:

$m\angle QAB=m\angle QAC+m\angle BAC$

Since ∠QAC ≅ ∠PAB:

$m\angle PAC=m\angle QAC+m\angle BAC$

And by substitution:

$m\angle PAC=m\angle QAB$

Thus:

$\angle PAC\cong \angle QAB$

Then by SAS Congruence:

$\Delta PAC\cong \Delta BAQ$

And by CPCTC:

$PC\cong BQ$

5 0

3 years ago

Read 2 more answers

Mason bought a clarinet online. It cost $611 plus 21% shipping and handling. What was the total cost?

emmainna [20.7K]

.21 times 611=128.31
128.31 plus 611
739.31

3 0

4 years ago