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andreyandreev [35.5K]
3 years ago
6

MARKING AS BRAINLIEST !( evaluate each using the values given)

Mathematics
2 answers:
Sergio [31]3 years ago
3 0

Answer:

i got -4 , by working it out

Step-by-step explanation:

Vedmedyk [2.9K]3 years ago
3 0
I got -3. -3-10+-10+5/5
-3 5/5
-3
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Which term describes an angle that measures 100?
Katyanochek1 [597]
100 degrees would be obtuse 
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Estimate the area of a polygon. A) 8 cm2 B) 10 cm2 C) 12 cm2 D) 14 cm2
Debora [2.8K]
The question is impossible to answer. as we do not have the image of the polygon
6 0
3 years ago
Read 2 more answers
Mitchell has $180 in a savings account that earns 10% simple interest annually. How much interest will he earn in 2 years?
Mrrafil [7]

Answer:

36.00

Step-by-step explanation:

7 0
3 years ago
Plz answer both questions 15 points
anyanavicka [17]

Answer:

If the signs of rational numbers are same, then the answer is positive.

If the signs of rational numbers are different, then the answer is negative.

Step-by-step explanation:

Consider the provided information.

A: When multiplying or dividing rational numbers, when will the answer be positive?

If we are multiplying or dividing rational numbers the answer will be positive if and only if both the rational numbers have same sign.

For example: Multiply 2 and 4.

2×4=8              (same sign)

or

Multiply -2 and -4.

-2×-4=8         (same sign)

8 is a positive rational number.

Now divided 2 and 4.

\frac{2}{4} =\frac{1}{2}    

or

Divided -2 and -4.

\frac{-2}{-4} =\frac{1}{2}

1/2 is a positive rational number.

Hence, If the signs of rational numbers are same, then the answer is positive.

B: When multiplying or dividing rational numbers, when will the answer be negative?

If we are multiplying or dividing rational numbers the answer will be negative if and only if both the rational numbers have different sign.

For example: Multiply 2 and -4.

2×-4=-8              (different sign)

or

Multiply -2 and 4.

-2×4=-8             (different sign)

-8 is a negative rational number.

Now divided 2 and -4.

\frac{2}{-4} =-\frac{1}{2}

or

Divided -2 and 4.

\frac{-2}{4} =-\frac{1}{2}

-1/2 is a negative rational number

Hence,  If the signs of rational numbers are different, then the answer is negative.

3 0
3 years ago
2х - Зу = 32<br> x + 4у = -20<br><br><br> solve the system of equations
ANTONII [103]
Answer: x=68/11 and y=-72/11


Steps:

2(x+4y=-20)

2x+8y=-40

2x - 3y = 32
- 2x + 8y = -40

-11y=72

y=-72/11


x + 4(-72/11) = -20

x - 288/11 = -20

x=68/11
5 0
2 years ago
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