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3 years ago

15

Can y’all please help me I wasn’t playing attention sorry

1 answer:

Inessa05 [86]3 years ago

7 0

It would be 40 in. If you think about it the 4in is 10 % and it is asking for the 100%. So to get to 100% you can do 4in *10= 40in
I hope this helps and it is okay! Hard to pay attention sometimes!

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Write x2 - 12x + 8 = 0 in vertex form.

antiseptic1488 [7]

(x-4)^2-19=y
you first add the three to the other side, then add 16 on both sides, make the left side x-4 squared, and lastly you subtract 19 from both sides.

3 0

2 years ago

Read 2 more answers

A pizza dough recipe calls for 6 1/2 cups of flour. The recipe makes 37 1/2 ounces of dough. How many ounces of dough does 1 cup

NemiM [27]

Answer:

$n = 5\frac{10}{13}$

Step-by-step explanation:

Given

$Call = 6\frac{1}{2}$ cups

$Recipe = 37\frac{1}{2}$ ounce

Required

Number of ounces per cup (n)

To do this, we simply divide the Recipe by the call

So, we have:

$n = \frac{Recipe}{Call}$

$n = 37\frac{1}{2} \div 6\frac{1}{2}$

Express as improper fraction

$n = \frac{75}{2} \div \frac{13}{2}$

Rewrite as:

$n = \frac{75}{2} * \frac{2}{13}$

$n = \frac{75}{13}$

$n = 5\frac{10}{13}$

3 0

2 years ago

The variable z is directly proportional to x. When x is 16, z has the value 176. What is the value of z when x = 24?

kow [346]

Answer: z = 264

Step-by-step explanation:

x to z = 16 to 176

x = 24 to ?

16/176 = 24/z

cross-multiply solve for z

z = 264

8 0

2 years ago

6. The mean number of hours of flying time for pilots at Continental Airlines is 37 hours per month (The Wall Street Journal, Fe

SashulF [63]

Answer:

The marginal error is 2.355

Confidence interval is $(34.645,\ 39.355)$

The LB and UB are 34.645 and 39.3555 respectively.

Step-by-step explanation:

Consider the provided information.

n = 49, s = 8.2 c = 95%and $\bar x=37$

Degree of freedom is: n-1 = 49-1 = 48.

$\alpha =\frac{1-c}{2}= \frac{1-0.95}{2}\\\alpha = \frac{0.05}{2}= 0.025$

From the table $t_{\alpha /2}=2.010635$

Marginal error is:

$E=t_{\alpha /2}\times \frac{s}{\sqrt{n}}$

$E=2.0106\times \frac{8.2}{\sqrt{49}}$

$E=2.0106\times \frac{8.2}{7}$

$E=2.0106\times 1.171$

$E=2.355$

Hence, the marginal error is 2.355.

Part (B)

95% confidence interval estimate

$(\bar x-E,\ \bar x+E)$

$(37-2.355,\ 37+2.355)$

$(34.645,\ 39.355)$

Thus, the LB and UB are 34.645 and 39.3555 respectively.

3 0

3 years ago

A collector's model racecar is scaled so that 1 inch on the model equals 6 feet on the actual car. If the model is 0.75 inches h

ohaa [14]

4.5, since 6 times .75 (the model height) is 4.5

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3 years ago