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IRISSAK [1]
2 years ago
7

HELP i neee help i dont understand

Mathematics
1 answer:
Slav-nsk [51]2 years ago
4 0

Answer:

the picture isnt loading. it says error.

Step-by-step explanation:

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Jimmy scored a total of 80 points on 2 tests. He scored 10 points more on the 2nd test. What was his score on the first test?
zavuch27 [327]
35 would be the answer. 45+35=80 and 45 is 10 more than 35
5 0
3 years ago
If x+3 is a factor of x^3-x^2-10x+A. What is the value of A?
Leno4ka [110]

Answer:

A = 6.

Step-by-step explanation:

Let a denote a constant (a number, rather than a variable like x.)

Let f(x) denote an expression about x (for example,

By the factor theorem, if (x - a) is a factor of f(x), then f(a) = 0. In other words, if all mentions of x in the expression f(x)\! are replaced with a, then the expression should evaluate to zero.

(x + 3) is equivalent to (x - (-3)). That is: a = -3.

Replace all mentions of x in x^3 - x^2 - 10\, x + A by (-3) to get:

(-3)^3 - (-3)^2 - 10\times (-3) + A.

That should evaluate to zero. Therefore: -27 - 9 + 30 + A = 0. Solve for A to get A = 6.

7 0
3 years ago
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swat32
They would be able to clean 7 cars in 56 mins
3 0
3 years ago
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Do any of you guys know this please i need helppp!!
Fudgin [204]
The third one
5/6 is the answer
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Your mother gave you $15.00 to buy a present. This covered 3/4 of the cost. How much did the present cost?
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Answer 20

Step-by-step explanation:

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