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gizmo_the_mogwai [7]
3 years ago
9

What is the product? Assume x20 ( 13x + 15 )( V15x+2/30 O 3x 15+3./165x + 10-16 O 3x V5+6 /10x+5-3x+10.56 0 3x √5 + 10/6 6./3x +

10 76​
Mathematics
1 answer:
miv72 [106K]3 years ago
6 0

Answer:

doesn't make sense

Step-by-step explanation:

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HURRY!!!! I NEED HELP RIGHT NOW!!! THIS IS TO ALL OF THOSE MATH WIZARDS OUT THERE!!
iren [92.7K]

Answer:

−9.333

Step-by-step explanation:

(1): "6.75" was replaced by "(675/100)"

(675/100)+3/8*x-((13)*1/4)=0

Simplify   1/4

675  3         1

 (———+(—•x))-(13•—)  = 0  

  100  8         4

       3

Simplify   —

           8

Equation at the end of step

2

:

  675     3          13

 (——— +  (— • x)) -  ——  = 0  

  100     8          4  

STEP

3

:

           27

Simplify   ——

           4  

Equation at the end of step

3

:

  27    3x     13

 (—— +  ——) -  ——  = 0  

  4     8      4            

3 0
3 years ago
Read 2 more answers
17) Tony is retiring after 40 years and will receive a monthly pension of $1400
dusya [7]

Add the two monthly incomes together:

1400 + 1100 = 2500 a month.

There are 12 months in a year, multiply the monthly income by 12:

2500 * 12 = $30,000 per year.

3 0
3 years ago
Read 2 more answers
Plz help I need help plz
dem82 [27]
Answer:

33/4 or 8 1/4

Step-by-step explanation:

-3 2/3 • (-2 1/4)

Step 1. Convert each into improper fractions
(Reply for details)

-11/3 • (-9/4)

Step 2. Multiply
(Reply for details)

99/12

Step 3. Simplify
(Reply for details)

33/4 or 8 1/4
4 0
3 years ago
Can you help me to solve this<br>​
RUDIKE [14]

Answer:

Is the question even complete ?

Step-by-step explanation:

5 0
2 years ago
In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time coll
ICE Princess25 [194]

Answer:

a) n = 1037.

b) n = 1026.

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{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

​(a) Assume that nothing is known about the percentage to be estimated.

We need to find n when M = 0.04.

We dont know the percentage to be estimated, so we use \pi = 0.5, which is when we are going to need the largest sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.04\sqrt{n} = 2.575*0.5

(\sqrt{n}) = \frac{2.575*0.5}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*0.5}{0.04})^{2}

n = 1036.03

Rounding up

n = 1037.

(b) Assume prior studies have shown that about 55​% of​ full-time students earn​ bachelor's degrees in four years or less.

\pi = 0.55

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 2.575\sqrt{\frac{0.55*0.45}{n}}

0.04\sqrt{n} = 2.575*\sqrt{0.55*0.45}

(\sqrt{n}) = \frac{2.575*\sqrt{0.55*0.45}}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*\sqrt{0.55*0.45}}{0.04})^{2}

n = 1025.7

Rounding up

n = 1026.

6 0
3 years ago
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