3 years ago

Solve the equation.check your solution,if possible. 1/2s=4s-21

Mathematics

1 answer:

Sladkaya [172]3 years ago

5 0

S=6

Solution
6/2=3
(6*4)=24
24-21=3

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32% of what number is 56

attashe74 [19]

Let 32% of x = 56

32%*x = 56
32/100 *x = 56
x = 56*100/32
x = 5600/32 = 175

hence, 32% of 175 is 56.

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3 years ago

Which function describes the table of values

RSB [31]

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A random sample of 400 items from a population shows that 160 of the sample items possess a given characteristic. A random sampl

Free_Kalibri [48]

Answer: $(0.04,\ 0.21)$

Step-by-step explanation:

The confidence interval for population proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

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$n_2=400 ;\ p_2=\dfrac{110}{400}=0.275$

Then a 99% confidence interval is constructed to estimate the difference in population proportions which possess the given characteristic will be :-

$0.4-0.275\pm (2.576)\sqrt{\dfrac{0.4(1-0.4)}{400}+\dfrac{0.275(1-0.275)}{400}}\\\\\approx0.125\pm0.085=(0.125-0.085,0.125+0.085)=(0.04,\ 0.21)$

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3 years ago

Find the midpoint of the segment with the following endpoints. (9, 6) and (5, 2)

yan [13]

Answer:

(9, 6) and (5, 2)

mid point = [ (x1 + x2) / 2 , (y1 + y2) / 2]

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Therefore the midpoint is (7,4)

Hope it helps..............

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3 years ago

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Vaselesa [24]

Answer:

4 and 9 or 4:9 or 4/9

Step-by-step explanation:

Divide both terms by the GCF, 4:

16 ÷ 4 = 4

36 ÷ 4 = 9

The ratio 16 : 36 can be reduced to lowest terms by dividing both terms by the GCF = 4

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3 years ago