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Elenna [48]
3 years ago
8

Solve each problem as indicated. Type your answer in the box. (5) + (–12) =

Mathematics
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

-7

Step-by-step explanation:

there are more negatives (it has a greater absolute value)

ur basically doing 12-5        and then u put the negative sign

Artist 52 [7]3 years ago
3 0

Answer:

-7

Step-by-step explanation:

To add a positive number and a negative number follow these steps.

1. Ignore the signs and consider both numbers positive. You have 5 and 12.

2. Subtract the smaller number from the larger number. If the numbers are equal, subtract one number from the other. In this case, you have 12 - 5 = 7.

3. The sign of the answer is the same sign as the larger positive number's original sign. Here, the larger positive number is 12. 12 was originally -12, a negative number, so the final answer is negative. (5) + (-12) = -7

Answer: -7

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What is the sum if the first 22 terms of the following series? 86 + 79 + 72 + 65 +58+...
Arturiano [62]
Seems to be an arythmetic sequence
Sn=[n(a1+an)]/2
where
Sn means sum of all terms up the nth term
n=number of terms
a1=first term
an=nth term

so from 86 to the 22th term is from a1 to a22

find teh sequence
miknus 7 each time
an=a1+d(n-1)
an=87-7(n-1)
find 22n term
a22=87-7(22-1)
a22=87-7(21)
a22=87-147
a22=-60

S22=[22(87-60)]/2
S22=[22(27)]/2
S22=594/2
S22=297

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4 years ago
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irinina [24]
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4 0
3 years ago
What is the Volume! ~
Mrrafil [7]

Answer:

<u>108</u>

Step-by-step explanation:

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6 0
2 years ago
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3. For the equation-4y = &amp;r, what is the constant of variation? (1 point)<br> ООО<br> 02
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Answer:

3).

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4).

y \alpha x \\ y = kx \\ where \: k \: is \: the \: constant \: of \: proportionality \\ when \: y = 24 \: and \: x = 8 \\ substitute \: in \: y = kx \\ 24 = 8k \\ k =  \frac{24}{8}  \\ k = 3 \\ value \: of \: constant = 3

If it was by 10, k = 3 by 10

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5).

general \: equation \: of \: line  \\ y = mx + c \\ but \: m =  \frac{2}{3}  \: and \: c = 9 \\ substitute \: for \: m \: and \: c \: in \: y = mx + c \\ y =  \frac{2}{3} x + 9 \\ alternatively \\ 3y = 2x + 27

7 0
3 years ago
If....................
kobusy [5.1K]

Answer:

C  - 22

Step-by-step explanation:

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2 years ago
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