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s2008m [1.1K]
2 years ago
14

Evaluate x Square-4x for x=-7

Mathematics
2 answers:
Ivahew [28]2 years ago
7 0
ANSWER:

(-7)^2-4*(-7)
=49+28
=77

Hope it helps u! :)
Lelu [443]2 years ago
3 0
49 - 4x-7= 49- (-28)=77
The answer is 77
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What is the quotient (6x4 − 15x3 − 2x2 − 10x − 4) ÷ (3x2 + 2)? (6 points)
allsm [11]
<h3>Answer:</h3>

2x^2 -5x -2

<h3>Step-by-step explanation:</h3>

See the attached for the polynomial long division.

4 0
2 years ago
25% of x is 30<br><br>x=? <br>please help!!!​
Nesterboy [21]

25% of 30 can be found by converting 25% to a decimal and multiplying it by 30.

25% = 0.25

30x0.25=7.5

So x is 7.5.

---

hope it helps

6 0
2 years ago
Neil has 3 partially full cans of white paint.They contain 1/3 gallon,1/5 gallon,and 1/2 gallon of paint.About how much paint do
Wittaler [7]

Answer:

  less than 1 1/2 gallons

Step-by-step explanation:

1/3 + 1/6 = 1/2, so the sum of the three cans is more than 1 by the difference between 1/5 and 1/6. That difference is 1/30 gallon. The sum is 1 1/30 gallons, which is less than 1 1/2 gallons.

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A suitable common denominator is 2·3·5 = 30. Then the sum of the fractions is ...

  1/3 + 1/5 + 1/2

  = 10/30 + 6/30 + 15/30

  = 31/30 = 1 1/30 . . . . . less than 1 1/2

In decimal, 1/3 ≈ 0.333, 1/5 = 0.200, 1/2 = 0.500, so the sum is ...

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4 0
3 years ago
Solve the whole problem i give brainliest please help me.
gladu [14]

Answer:

165 is greater than or equal to 17.75x+5.25; 9 is greater than or equal to x

Step-by-step explanation:

The problem states that they have no more than $165. This means that they either use all the money, or they have leftover money, which means you need to use the 'greater than or equal to' sign. It says that tickets are $17.75 a person, and we're trying to find the number of people (x). You can write this as 17.75x. There is also a parking fee to add on to the equation, which is represented as +5.25. Now, we can solve!

I'm going to use an equal sign to replace the inequality symbol, but make sure to add the symbol at the end of the problem.

165=17.75x+5.25

159.75=17.75x

9=x

Our final answer is 9 is greater than or equal to x. Hope this helps!

8 0
2 years ago
Read 2 more answers
F(x) = -log -(x - 1)
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