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3 years ago

PLEASE HELP ME WITH THIS MATH!

Mathematics

1 answer:

Setler [38]3 years ago

8 0

Answer:

1. 25

2. 10

3. 18

4. 48

5. 48

6. 28

7. 7

8. 4

9. 12

Step-by-step explanation:

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The central idea of this text is that people care too much about what other people think about there body. People start to feel

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The central idea belive is about insecurity about themselves.

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3 years ago

Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 33 minutes and a standard

lilavasa [31]

Answer:

Method A.

Step-by-step explanation:

For solving this question we need to find out the z-scores for both methods,

Since, the z-score formula is,

$z=\frac{x-\mu}{\sigma}$

Where, $\mu$ is mean,

$\sigma$ is standard deviation,

Given,

For method A,

$\mu = 33$

$\sigma=8$

Thus, the z score for 34 is,

$z_1=\frac{34-33}{8}=0.125$

While, for method B,

$\mu = 37$

$\sigma = 4$

Thus, the z score for 34 is,

$z_2=\frac{34-37}{4}=-0.75$ ,

Since, $z_1 > z_2$

Hence, method A is preferred if the procedure must be completed within 34 minutes.

8 0

4 years ago

How many time larger is 9x10^-8 than 3x10^-12

kkurt [141]

Step-by-step explanation:

$\frac{9 \times 10 {}^{ - 8} }{3 \times 10 {}^{ - 12} }$

Apply Quoteint of Powers. Divide the intergers. serpately.

Note that Quotient of Powers is

$\frac{a {}^{x} }{a {}^{y} } = a {}^{x - y}$

So the answer is

$3 \times 10 {}^{ - 8 + 12} = 3 \times 10 {}^{4}$

The answer is

$3 \times 10 {}^{4}$

$30000$

3 0

3 years ago

Read 2 more answers

What is the common ratio of the geometric sequence 9, 72,576, ...

AysviL [449]

Answer:

Hello! The answer is 8 : 1

Step-by-step explanation:

9 x 8 = 72

72 x 8 = 576

There is a pattern here.

_AnnieTheDreamGirl, 3/9/2022

8 0

3 years ago

A total of $32,000 is invested in two municipal bonds that pay 4.25% and 6.25% simple interest. The investor wants an annual int

Aleks04 [339]

Answer:

$16000 invested in 4.25% and 16000 invested in 6.25%

Step-by-step explanation:

Let x be the amount invested in 4.25% and y be the amount invested in 6.25%

4.25%= 0.0425

6.25%= 0.0625

$x+y= 32000$

subtract x from both sides

$y= 32000-x$

total interest earned is 1680

$0.0425x+0.0625y=1680$

$0.0425x+0.0625(32000-x)=1680$

Now solve for x and y

$0.0425x+2000-0.0625x=1680$

subtract 2000 from both sides

$-0.02x=1680-2000$

$-0.02x=-320$

divide by -0.02 from both sides

x=16000

$y= 32000-x$

$y= 32000-16000=16000$

4 0

4 years ago