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valina [46]
2 years ago
10

10 points

Mathematics
1 answer:
Mazyrski [523]2 years ago
5 0
I think the answer is d I could be wrong
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Vivian bought 6 bottles of cooking oil. She gave the cashier $40 and expected $y change. (a) express the cost of 1 bottle of coo
MariettaO [177]
Prize of 6 botl= 40-y
prize of 1 botl will 40-y/6
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then prize of 1 bottle is 5
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3 years ago
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If -2 and 3 are zeroes of quadratic polynomial xsquare + (a+1)x+b then find the value of and b
ohaa [14]

Answer:

a = - 2, b = - 6

Step-by-step explanation:

Substitute the values of the zeros into the polynomial and equate to zero.

x² +(a + 1)x + b

x = - 2 → (- 2)² - 2(a + 1) + b = 0 , that is

4 - 2a - 2 + b = 0

2 - 2a + b = 0 ( subtract 2 from both sides )

- 2a + b = - 2 → (1)

x = 3 → 3² + 3(a + 1) + b = 0, that is

9 + 3a + 3 + b = 0

12 + 3a + b = 0 ( subtract 12 from both sides )

3a + b = - 12 → (2)

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5a = - 10 ( divide both sides by 5 )

a = - 2

Substitute a = - 2 into either of the 2 equations and evaluate for b

Substituting into (2)

3(- 2) + b = - 12

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b = - 6

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4 0
3 years ago
Express this number in scientific notation. 0.0048
balandron [24]

Answer

4.8 x 10^-3

Step-by-step explanation:

4 0
3 years ago
Numbers that are greater than 5 and less than 5.75
Goshia [24]
The easy way to think about this is what number comes between 5 and 7? The answer is 6 (but we have to consider that it's negative in this case.) So the answer is -6 Another way to look at it is with a number line (not to "Which number is greater than -7 and less than -5"? scale.)<===(-7)==(-6)==(-5)==(-3)==(-2)==(-1)==(0)==(1)==>Notice how -6 comes between the two numbers. -6 is larger than -7 (it's "less negative" -- "Which number is greater than -7 and less than -5"? closer to zero) -6 is less than -5 (it's "more negative" -- further away from zero)
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You are required to choose two topics from a list of five to write about on your science test. How many different pairings are p
marissa [1.9K]
A B C D E represent the subjects


A+A1

A+B2

A+C3

A+D4

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B+C7

B+D8

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C+D11

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D+D13

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3 years ago
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