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2 years ago

PLEASE HELP ME FAST I WILL GIVE BRAINLIEST TO BEST AND FASTEST ANSWER

Mathematics

1 answer:

viktelen [127]2 years ago

7 0

R is remainder.We can use long division.

Answer: 2f - 1, remainder -17

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A rectangle is drawn so the width is 5 inches longer than

CaHeK987 [17]

Answer:

$length = l\\width = 5 + l\\Diagonal = 36\\diagonal^2 = (5+l)^2 + l^2\\36^2 = 25 + l^2 +10l + l^2\\1296 = 2l^2 +10l +25 \\2l^2 +10l=1271\\\\l_1=\frac{-10+2\sqrt{2567}}{2\cdot \:2},\:l_2=\frac{-10-2\sqrt{2567}}{2\cdot \:2}$

$l_1=\frac{-5+\sqrt{2567}}{2},\:l_2=\frac{-5-\sqrt{2567}}{2}$

clearly,

$l_{2} \ is \ a \ negative\ number$

So we consider

$l_{1} =\frac{-5+\sqrt{2567}}{2} = 22.83$

Therefore height = 22.8inches

6 0

2 years ago

Several years ago, 43% of parents who had children in grades K-12 were satisfied with the quality of education the students r

Ne4ueva [31]

<h2><u>Answer with explanation</u>:</h2>

Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.

Set of hypothesis :

$H_0: p=0.43\\\\ H_a:p\neq0.43$

Confidence interval for population proportion is given by :-

$\hat{p}\pm z_c\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$ , where

n= sample size

$\hat{p}$ = sample proportion

and $z_c$ is the two-tailed z-value for confidence level (c).

As per given ,

Sample size of parents : n= 1085

Number of parents indicated that they were satisfied= 466

Sample proportion : $\hat{p}=\dfrac{466}{1085}\approx0.429$

Critical value for 90% confidence interval : $z_c=1.645$ ( by z-value table)

Now, the 90% confidence interval :

$0.429\pm (1.645)\sqrt{\dfrac{0.429(1-0.429)}{1085}}\\\\=0.429\pm 0.0247\\\\=(0.429-0.0247,\ 0.429+0.0247)\\\\=(0.4043,\ 0.4537)$

Thus , the 90% confidence interval: (0.4043, 0.4537).

Since 0.43 lies in 90% confidence interval , it means we do not have enough evidence to reject the null hypothesis .

i.e. We are have no evidence that parents' attitudes toward the quality of education have changed.

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2 years ago

We need a minimum of 30 book sales by today. If 10 books were sold yesterday, what are the possible numbers for sales today

amm1812

I mean it would be A and D because I don't know why they are both the same answer. If 10 books were sold yesterday, at LEAST 20 are needed to make the goal.

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A Local restaurant offers burgers with a choice of the following toppings: cheese, lettuce, tomato, pickle, onion, jalapeños, a

olga_2 [115]

GD DAY AND NIGHT EMMANUEL MUDIAY

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2 years ago

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arlik [135]

Answer:

Step-by-step explanation:

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