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Leokris [45]
3 years ago
12

Help please, which one is a quadratic expression?

Mathematics
1 answer:
Elza [17]3 years ago
7 0

Answer: -6x^2 + 3 and 1 - 4x^2

Step-by-step explanation:

A quadratic expression is an expression that can be in the form ax^2 + bx + c, where a, b, and c are all constants, and a does not equal 0. (ax must be squared, it can't be raised to a power other than 2)

-6x^2 + 3 and 1 - 4x^2 can be in the form ax^2 + bx + c. Therefore, they are the quadratic expressions.

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PLZ HELP QUICK<br> Which value from the set {12, 16, 21, 36} makes 2/3-n=19 true?
lilavasa [31]

Answer: 36

Step-by-step explanation: when you solve the problem  2/3n-5=19 you get 36.

3 0
3 years ago
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Tiger as a unit of weight 1 tiger = 400 pounds
aivan3 [116]

Answer:

7

Step-by-step explanation:

because 1 = 400

2800 divided by 400 = 7

8 0
3 years ago
-4-8 and 3-(-1)<br> thats it
mr Goodwill [35]

Answer:

-4-8=-12. 3-(-1)=3

Together they equal -9

Step-by-step explanation:

You have to multiply by the - sign outside the parentheses and the first one just count backwards

8 0
3 years ago
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How did my teacher get 11 for #17
wel
Complementary angles ⇒ the angles add up to 90°

∠A and ∠B are complementary ⇒ ∠A + ∠B = 90°

∠A + ∠B = 90°

Plug in the values for ∠A and ∠B:
(3x - 8) + (5x + 10)  = 90

Open the brackets:
3x - 8 + 5x + 10 = 90

Combine like terms:
8x + 2 = 90

Subtract 2 from both sides:
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Divide both sides by 8:
x = 11

Answer: x = 11
5 0
3 years ago
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Y = 5x + 4
Luda [366]

Answer:

Correct (1,9), (2,14)

Incorrect (1,8),(2,13)

Step-by-step explanation:

It is simple.

To find the correct values plug a x value.

For Example;

X=1

y=5(1)+4

y=5+4

y=9

so your X value is 1 and your Y value is 9

To solve for the incorrect values

Find the correct values and subtract 1 form the Y value.

4 0
3 years ago
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