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3 years ago

7 · 15 can be written as _____.

Mathematics

2 answers:

ale4655 [162]3 years ago

8 0

7(10+5)

This is the only thing that makes sense to me

d1i1m1o1n [39]3 years ago

3 0

7 • 15 can be written as 7 time 15

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An object dropped from a height of 600 feet has a height, h(t), in feet after t seconds have elapsed, such that h(t) = 600 − 16t

Anni [7]

given h = 600 - 16t ( add 16t to both sides )

16t + h = 600 ( subtract h from both sides )

16t = 600 - h ( divide both sides by 16 )

t = $\frac{600-h}{16}$

when h = 400

t = $\frac{600-400}{16}$ = $\frac{200}{16}$ = 12.5 seconds

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4 years ago

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What is the name of ostrich's meat?

ehidna [41]

Answer:

Ostrich meat is a "red meat" similar in color and taste to beef. However, it is lower in fat grams per serving compared to chicken and turkey.

Step-by-step explanation:

Hope this helped??!! :3

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4 years ago

a pair of boots regulary priced 129.99 was marked down to 35.99 during the end of season sale. What is the percent of discount?

enot [183]

Answer: The correct answer is a 72% discount.

Step-by-step explanation: The way to solve this problem is to calculate the amount of the discount and then calculate what percentage it is of the original price.

The steps to complete this:

$129.99 - $35.99 = $94 discount

$94 discount divided by $129.99 = 72.3% discount

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4 years ago

In a sample of 408 new websites registered on the Internet, 37 were anonymous (i.e., they shielded their name and contact inform

xeze [42]

Answer: $(0.0628,\ 0.1186)$

Step-by-step explanation:

Given : Significance level : $\alpha:1-0.95=0.05$

Critical value : $z_{\alpha/2}=\pm1.96$

Sample size : n= 408

Proportion of new websites registered on the Internet were anonymous :

$\hat{p}=\dfrac{37}{408}\approx0.0907$

The formula to find the confidence interval for population proportion is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

i.e. $0.0907\pm (1.96)\sqrt{\dfrac{0.0907(1-0.0907)}{408}}$

$=0.0907\pm0.0278665515649\\\\\approx 0.0907\pm0.0279\\\\=(0.0907-0.0279,\ 0.0907+0.0279)\\\\=(0.0628,\ 0.1186)$

Hence, the 95 percent confidence interval for the proportion of all new websites that were anonymous = $(0.0628,\ 0.1186)$

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3 years ago

What is the least common multiple of 50, 60 and 72

Andre45 [30]

The least common multiple of each is 2. 2 x 25= 50. 2 x 30= 60 and 2 x 36=72

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3 years ago