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3 years ago

If one factor of 56x^4-42x^2y6 is 14x^2y^3 what is the other factor?

Mathematics

1 answer:

nataly862011 [7]3 years ago

7 0

14x^2 y^3( 4x^2-3y^3)

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Find y when x is -3 y=6x+8

lys-0071 [83]

Answer:

-10

Step-by-step explanation:

y=6x+8

y=6(-3)+8

y=-18+8

y=-10

3 0

3 years ago

Please help, I dont know where to start

PtichkaEL [24]

Answer:

16 ft

Step-by-step explanation:

The circumference of a circle is given by

C = pi d

where d is the diameter

50.24 = 3.14 *d

Divide each side by 3.14

50.24/ 3.14 = 3.14d/3.14

16 = d

4 0

3 years ago

A quality control engineer is interested in estimating the proportion of defective items coming off a production line. In a samp

fenix001 [56]

Answer:

The lower bound of a 99% C.I for the proportion of defectives = 0.422

Step-by-step explanation:

From the given information:

The point estimate = sample proportion $\hat p$

$\hat p = \dfrac{x}{n}$

$\hat p = \dfrac{55}{100}$

$\hat p$ = 0.55

At Confidence interval of 99%, the level of significance = 1 - 0.99

= 0.01

$Z_{\alpha/2} =Z_{0.01/2} \\ \\ = Z_{0.005} = 2.576$

Then the margin of error $E = Z_{\alpha/2} \times \sqrt{\dfrac{\hat p(1-\hat p)}{n}}$

$E = 2.576 \times \sqrt{\dfrac{0.55(1-0.55)}{100}}$

$E = 2.576 \times \sqrt{\dfrac{0.2475}{100}}$

$E = 2.576 \times0.04975$

E = 0.128156

E ≅ 0.128

At 99% C.I for the population proportion p is: $\hat p - E$

= 0.55 - 0.128

= 0.422

Thus, the lower bound of a 99% C.I for the proportion of defectives = 0.422

6 0

2 years ago

If 5r + 6 < 36, then a) r<6 b) r<8 c) r<12 d) r<30 e) not given

Irina18 [472]

The answer is r<6

yycjj. hgxs tfdg

4 0

3 years ago

PLSS HELP

Travka [436]

Step-by-step explanation:

$\sqrt{(x + 6) ^{2} } = \sqrt{18} \\ x + 6 = + - \sqrt{18} \\ x + 6 = + - \sqrt[3]{2}$

5 0

2 years ago