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sattari [20]
3 years ago
15

If these two shapes are similar, what is the measure of the missing length n?

Mathematics
1 answer:
Sidana [21]3 years ago
6 0

Answer:

60

Step-by-step explanation:

if we simplify 96/72 we get 4/3

now we can use it for n and 80 we know that 80 is the longer one so 4 is 80 in this case, now 80/4 equals 20, 3 x 20 = 60

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Find k if the slope of <br> 4y= -kx - 2 is 4.
oee [108]

Answer:

  • k = -16

Step-by-step explanation:

<u>Given formula:</u>

  • 4y= -kx - 2, where slope is 4

<u>Slope-intercept formula is:</u>

  • y = mx + b, where m is the slope

<u>Finding slope by bringing the formula to the same format as above:</u>

  • 4y = -kx - 2
  • y = -k/4x - 1/2

<u>Slope is -k/4 and comparing it with the given:</u>

  • -k/4 = 4
  • k = 4*(-4) = -16
8 0
3 years ago
2. Given the graph below, answer the following questions.
kow [346]
Function A is increasing
6 0
3 years ago
Read 2 more answers
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.

3 0
3 years ago
Ayudaaa plis<br>7-4= <br>6-2=<br>-3-2=<br>-8+9=<br>-9+5=<br>1+10=​
vladimir2022 [97]

Answer:

7-4=3

6-2=4

-3-2= -5

-8+9=1

-9+5= -4

1+10=11

Step-by-step explanation:

No es tan difícil, puedes g0oglearlo

6 0
3 years ago
Read 2 more answers
5.1.2 Exam: Semester 2 Exam
Nikolay [14]

Answer:

See attached picture to view the graph

Step-by-step explanation:

Start by analyzing how this average idea works:

If only one member goes to the trip, it will cost him/her $1000+$200 = $1200.

If two members go to the trip, then they will share the cost as per the following: ($1000+ $200 + $200 = $1400) which they will be dividing into two people, thus costing each of them $700.

Notice that the general function that represents such average will be given by: f(x) = \frac{1000+200x}{x}

Plot such function in the two dimensional plane, and you will get the asymptotic behavior shown in the attached image.

8 0
3 years ago
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