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nata0808 [166]
2 years ago
5

2x^{2}+6x=32x 2 +6x=3

Mathematics
1 answer:
mars1129 [50]2 years ago
7 0

Answer:2

2

+

6

=

3

2

2

+

6

=

3

Step-by-step explanation:

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Hello! I need the answer to the question showed in the picture below
RUDIKE [14]

Answer:Answer:

−78+−12=−138

Step-by-step explanation:

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(-7/8, -1/2) = 8

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(−78×11)+(−12×44)=?

Complete the multiplication and the equation becomes

−78+−48=?

The two fractions now have like denominators so you can add the numerators.

Then:

−7+−48=−118

This fraction cannot be reduced.

The fraction

−118

is the same as

−11÷8

Convert to a mixed number using

long division for -11 ÷ 8 = -1R3, so

−118=−138

Therefore:

−78+−12=−138

Solution by Formulas

Apply the fractions formula for addition, to

−78+−12

and solve

(−7×2)+(−1×8)8×2

=−14+−816

=−2216

Reduce by dividing both the numerator and denominator by the Greatest Common Factor GCF(22,16) = 2

−22÷216÷2=−118

Convert to a mixed number using

long division for -11 ÷ 8 = -1R3, so

−118=−138

Therefore:

−78+−12=−138

8 0
2 years ago
Read 2 more answers
2. Let Y denote the average starting salary for 2014 U.S. college graduates, measured in dollars. Suppose that the average annua
Dafna11 [192]

Answer:

Average salary: 56

Standard deviation of the salary: 8

Step-by-step explanation:

$56,000 dollars is 56 thousand dollars.

$8,000 is 8 thousand dollars.

The mean is the average. So the average, measured in thousands of dollars, is 56.

The standard deviation is $8,000. So, the standard deviation measured in thousands of dollars, is 8.

5 0
3 years ago
the average of five numbers is 16. Suppose 10 is added to the five numbers what it the average of the six numbers
Lerok [7]
X/5 = 16
x = 80

80+10/ 6 = 90/6 = 15..
3 0
3 years ago
I need help with this question it is on mathswatch btw.
navik [9.2K]

Answer:

x is less then or equal to -3

x<-3 (the < has to have a line underneath)

Step-by-step explanation:

4 0
2 years ago
Pls I need answer it’s due today!!!!!!!!!
vesna_86 [32]

Step-by-step explanation:

in probability,or means addition.

14/28+19/28

1/2+19/28

you then find the LCM of the denominator.

14+19/28

33/28

you then divide 33 by 28.

6 0
2 years ago
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