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2 years ago

Find each quotient. Check your work using multiplication.

Mathematics

2 answers:

Blizzard [7]2 years ago

6 0

Answer:

13. $15y^{4} + y^{3} +5y^{2} - 17y + 1$

14. $x^{4} + 6x^{3} - 15x^{2} + 20x - 15$

15. $-a^{4} + 12a^{3} + 18a^{2} + 0a + 20$

Step-by-step explanation:

horsena [70]2 years ago

5 0

WHAT KIND OF SCHOOL YOU GO TO

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How do you get the number 24 with the numbers 2,6,4,1

elena55 [62]

Answer:

(2+6)*(4-1) = 24

(2-1)*(6*4) = 24

(2-1)*6*4 = 24

(2-1)*(4*6) = 24

(2-1)*4*6 = 24

(6+2)*(4-1) = 24

6*(2-1)*4 = 24

6/(2-1)*4 = 24

3 0

2 years ago

A student factors a^6 - 64 to (a^2-4)(a^4 + 4a^2+ 16).

Neko [114]

Answer:

Option (b) is correct.

The expression is equivalent, but the term is not completely factored.

Step-by-step explanation:

edge 2020

4 0

2 years ago

Brian invests £4000 into his bank account.

siniylev [52]

Answer:

14 years

Step-by-step explanation:

£280 is 7% of 4000 so £4000 euro more would be 4000/280 = 14

7 0

2 years ago

8775 find the prime factorization of the number

OLEGan [10]

8775

/ \

3 2925

/ \

3 975

/ \

3 325

/ \

5 65

/ \

5 13

/ \

13 1

Prime Factors: 3, 3, 3, 5, 5, 13

5 0

2 years ago

It costs more to produce defective items - since they must be scrapped or reworked - than it does to produce non-defective items

ale4655 [162]

Answer: a) 1082, b) wider.

Step-by-step explanation:

Since we have given that

Margin of error = 0.1 millimeter = E

Standard deviation = 2 mm = σ

Critical value would be

$z_{\frac{\alpha}{2}}=z_{0.05}=1.645$

a) Sample size would be

$n=(\dfrac{z_{\frac{\alpha }{2}}\times \sigma}{E})^2\\\\n=(\dfrac{1.645\times 2}{1})^2\\\\n=1082.41\\\\n=1082$

b) Sample size, n = 100

So, the margin of error would be

$E=z_{\frac{\alpha }{2}}\times \dfrac{\sigma}{\sqrt{n}}\\\\E=1.645\times \dfrac{2}{\sqrt{100}}\\\\E=1.645\times \dfrac{2}{10}\\\\E=0.329$

Since the margin of error in b part is more than a part, as we know that the higher the margin of error, the wider the confidence interval.

So, it would have wider confidence interval.

Hence, a) 1082, b) wider.

4 0

2 years ago