help!!!! It’s missing and I forgot to do but I need the answers 1-4 thank you so much your a life saver

Answers

Answer 1

Answer: 1. No solution
2. y= -3x/4-5/2
3. x=8+y
4 I can’t really see it

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Jades braces cost her parents $2848 her parents will pay $89 each month how many months would take them to pay for her braces

Answers

2848/89=32 months
It will take Jade's parents roughly 2.5 years

If Jade owes $2848 and will be paying her parents back $89 a month it will take a total of 32 months to pay them back.

For this problem you would take the amount owed and divide it by monthly payments:

$(2848)/(89)$
= 32 Months
If you want to back track your work to ensure it is the right answers just multiply 89*32
=2848

I hope this helped!

It is important that face masks used by firefighters be able to withstand high temperatures because firefighters commonly work in temperatures of 200-500 degrees. In a test of one type of mask, 24 of 55 were found to have their lenses pop out at 325 degrees. Construct and interpret a 93% confidence interval for the true proportion of masks of this type whose lenses would pop out at 325 degrees.

Answers

Answer:

The 93% confidence interval for the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574). This means that we are 93% sure that the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{(\pi(1-\pi))/(n)}$

In which

z is the zscore that has a pvalue of $1 - (\alpha)/(2)$ .

For this problem, we have that:

$n = 55, \pi = (24)/(55) = 0.4364$

93% confidence level

So $\alpha = 0.07$ , z is the value of Z that has a pvalue of $1 - (0.07)/(2) = 0.965$ , so $Z = 1.81$ .

The lower limit of this interval is:

$\pi - z\sqrt{(\pi(1-\pi))/(n)} = 0.4364 - 1.81\sqrt{(0.4364*0.5636)/(55)} = 0.3154$

The upper limit of this interval is:

$\pi + z\sqrt{(\pi(1-\pi))/(n)} = 0.4364 + 1.81\sqrt{(0.4364*0.5636)/(55)} = 0.5574$

Triple the difference of 8 from 10, then multiply by 5.

Answers

Answer:

Step-by-step explanation:

The answer is 30. This is because the difference of 8 from 10 is 2. That difference must be tripled to get 6. Finally the 6 must be multiplied by 5 to get 30.

Please, need this urgently.Graph the function f(x) = 18(0.8)x.

an exponential graph decreasing from the left and crossing the y axis at 0 comma 21
an exponential graph decreasing from the left and crossing the y axis at 0 comma 5
an exponential graph decreasing from the left and crossing the y axis at 0 comma 18
an exponential graph decreasing from the left and crossing the y axis at 0 comma 8

Answers

Answer:

i think the answer is:

D - an exponential graph decreasing from the left and crossing the y axis at 0 comma 8

Answer:

the answer is D

Step-by-step explanation:

i took the test

circle o is inscribed in triangle rst such that it is tangent at points m,n, and p. if rp is 7, rt is 17 and sm is 5, then what is the length of side st?

Answers

Answer:

The length of side st is 15.

Step-by-step explanation:

A tangent is a straigth line that touches a circle externally at a point on the circumference. Considering one of its properties that tangents from the same point to a fixed point outside a circle are equal.

Then,

/rn/ = /rp/

/tm/ = /tn/

/sm/ = /sp/

But, /rp/ = 7, /rt/ = 17 and /sm/ = 5.

Then,

/rt/ = /rn/ + /tn/

17 = 7 + /tn/ (∵ /rp/ = /rn/ = 7)

⇒ /tn/ = 10

Since /nt/ = 10, then /tm/ = 10 (/tm/ = /nt/)

So that,

/st/ = /sm/ + /tm/

= 5 +10

/st/ = 15

The length of side st is 15.

System AAA \text{\quad}start text, end text System BBB \begin{cases}4x+16y=12\\\\x+2y=-9\end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 4x+16y=12 x+2y=−9 \begin{cases}4x+16y=12\\\\x+4y=3\end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 4x+16y=12 x+4y=3 1) How can we get System BBB from System AAA?

Answers

Answer:

i am aware that this is already answered but here is proof that the person above is correct!

Step-by-step explanation:

Answer: A), No

Step-by-step explanation:

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