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Step2247 [10]
3 years ago
10

Calcula 40 – {28 – (- 5) + - 9 + (12 – 38 + -25) – (-7)}

Mathematics
1 answer:
Tems11 [23]3 years ago
3 0

Answer:

60

Step-by-step explanation:

This is a simple question.

Good luck!

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Factor 7w2−175.(1 point)<br><br> −7(w−25)<br><br> 7(w−25)<br><br> 7(w−5)(w+5)<br><br> 7(w−5)(w−5)
Nutka1998 [239]

Answer:

7(w + 5)(w -5)

Step-by-step explanation:

a² - b² = (a + b)(a - b)

7w² - 175 = 7w² - 7*25

              = 7(w² - 25)

              = 7(w² - 5²)

              = 7(w + 5)(w -5)

6 0
3 years ago
Write an equation in point slopeople form that passes through the point (1,8) &amp; slope of -3 show all work now write the equa
il63 [147K]

So we know that point-slope form is as follows:


y-y_{1}=m(x-x_{1})


The points (x_{1} and y_{1} correspond to the point given and m is representing the slope. So we plug in what the question gives us:


y-(8)=-3(x-1) <------ Point-slope form


Now we can take this form and simplify to give us the slop-intercept form:


y-8=-3(x-1)


y-8=-3x+3


y=-3x+11 <----- Slope-intercept form

8 0
4 years ago
A retail outlet for calculators sells 900 calculators per year. It costs ​$2 to store one calculator for a year. To​ reorder, th
Rus_ich [418]

Answer:

In order to minimize cost the outlet must order 60 units 15 times a year.

Explanation:

Theoretically, the EOQ is the optimal order quantity that a firm should purchase in order to minimize its inventory costs (holding costs are included here), and costs of placing an order.

Mathematically:

EOQ= \sqrt{2SD} /H

Where:

D= demand

S= cost of placing an order.

H= holding cost (per unit and per year).

In the statement, we identify each of these values:

D= 900

S= 4

H= $2

EOQ= \sqrt{2SD} /H=√2*4*900/2= 60

Times per year= 900/60= 15

5 0
3 years ago
What is the probability that I will choose a cat owner and a bird owner. Please help. Thanks
Serjik [45]

Answer:

The probability is 1/36.

Step-by-step explanation:

2/3 are dog owners

1/6 are cat owners

1/6 are bird owners

If you choose two owners, there is a 1/6 chance that you will choose a cat owner and a 1/6 chance you will choose a bird owner. Each of these are independent, so you simply multiply 1/6 by 1/6.

1/6 * 1/6= 1/36

4 0
3 years ago
Read 2 more answers
Order these cards starting with he smallest fraction 7/8 5/12 11/2 3/4 4/5
Artemon [7]
1. Convert all fractions to decimals.
7/8 = 0.875
5/12 = 0.417
11/2 = 5.5
3/4 = 0.75
4/5 = 0.8
3. Organize decimals from least to greatest.
0.417, 0.75, 0.8, 0.875, 5.5
4. Put back into fractions.
5/12, 3/4, 4/5, 7/8, 11/2.
7 0
3 years ago
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