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Ksenya-84 [330]
2 years ago
15

Which of these numbers is prime? Choose 1 answer: 3 30 63 77 E 91​

Mathematics
2 answers:
Sav [38]2 years ago
3 0

Answer:

3

Step-by-step explanation:

3 is the only number here with factors of itself (3) and 1

madam [21]2 years ago
3 0

Answer:

3

Step-by-step explanation:

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I don’t know how to explain on why the student was incorrect
Zolol [24]

Answer:

the constant proportionality means the ratio between two directly proportional quantities.

so the constant proportionality will be 7.5÷6=1.25 or 10÷8=1.25 or 12.5÷10=1.25

constant proportionality should be same all through because it's a constant

7 0
3 years ago
The table represents the start of the division of 8x^4+2x^3-7x^2+3x-2 by the indicated divisor. Find the quotient.
zloy xaker [14]
Answer: <span><span>2x² + x - 2</span> (the first option)

Explanation:

1) Question: divide 8x⁴+2x³-7x²+3x-2 by 4x² - x + 1

2) First term of the quotient

</span><span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x²
----------------------------------
           4x³ - 9x² + 3x - 2

3) Second term of the quotient:
</span>
<span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x² + x
----------------------------------
           4x³ - 9x² + 3x - 2
          -4x³ +  x² -   x
        ----------------------------
                  - 8x² + 2x - 2

4) third term of the quotient:
</span>
<span>  8x⁴ + 2x³ - 7x² + 3x - 2     | 4x² - x + 1
                                           ---------------------
 -8x⁴ + 2x³ - 2x²                   2x² + x - 2
----------------------------------
           4x³ - 9x² + 3x - 2
          -4x³ +  x² -   x
        ----------------------------
                  - 8x² + 2x - 2
                    8x²  - 2x + 2
                 -------------------------
                             0

5) Conclusion: since the remainder is 0, the division is exact and the quotient is </span>2x² + x - 2

You can verify the answer by multiplying the quotient obtained by the divisor. The result has to be the dividend.
5 0
3 years ago
Read 2 more answers
What is the value of x and y
Anestetic [448]

Step-by-step explanation:

8y+17°=6x+7° (vertical opposite angle)

6x+7=3x-29. (interior angle on same side)

3x=-36

x=-12°

B=C

-72+7=-36-29

-65=-65

6 0
3 years ago
Which sentence contains a word that is misspelled because a silent letter has been left out?
BaLLatris [955]

Answer:

C

Step-by-step explanation:

Morgages is spelled mortgages

6 0
3 years ago
Read 2 more answers
Combine Like Terms and Evaluate
rosijanka [135]

Answer:

29

Step-by-step explanation:

-2x+4+3y-5x-2y

Combine like terms

-7x+1y+4

evaluate

-7(-3) 1(4) 4

Solve

21+4+4

29

6 0
3 years ago
Read 2 more answers
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