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kompoz [17]
3 years ago
9

Select the correct answer​

Mathematics
2 answers:
pochemuha3 years ago
7 0

Answer:

B

Step-by-step explanation:

3x^2+5x-7x^2-28 then simplify

Strike441 [17]3 years ago
6 0

Answer:

-4x^2+5x-28

Step-by-step explanation:

3x^2 +5x - 7(x^2 +4)

Distribute the -7

3x^2+5x-7x^2-28

Combine like terms

-4x^2+5x-28

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Write a ratio for each situation 310 beats per minute
MakcuM [25]

The obvious one is (310 beats)/(1 minute).

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3 years ago
Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t
Katyanochek1 [597]
  • Discriminant Formula: b² - 4ac, with a = x^2 coefficient, b = x coefficient, and c = constant

So firstly, using our equation plug in the values into the discriminant formula and solve as such:

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49 - 48

1

So our discriminant is 1. <u>Since 1 is positive and a perfect square, this means that there are 2 real, rational solutions.</u>

8 0
3 years ago
Twins issac and isaiah were just born issac weighs 6 pounds 2 ounces and isaiah weighs 5 pounds 4 ounces.How many ounces do issa
Ivanshal [37]

Answer: 11\ \text{pounds}\ 6\ \text{ounces}

Step-by-step explanation:

Given

Issac and Isaiah born weighing 6 pounds 2 ounces and 5 pounds and 4 ounces.

1 Pound is equivalent to 16 ounces

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\Rightarrow 6+\dfrac{2}{16}\ \text{Pounds}

Isaiah weighs

\Rightarrow 5+\dfrac{4}{16}\ \text{Pounds}

Their combined weight is

\Rightarrow 6+5+\dfrac{2}{16}+\dfrac{4}{16}\\\\\Rightarrow 11+\dfrac{6}{16}\ or\\\\\Rightarrow 11\ \text{pounds}\ 6\ \text{ounces}

5 0
3 years ago
If f(6)=7 what is f(-2)​
Fed [463]

Answer:

1 is correct answer or not please reply me

3 0
3 years ago
The sum of two numbers is 44 and the difference is 2 What are the numbers
Aleks04 [339]

Answer:

21 & 23

Step-by-step explanation:

44 ÷ 2 = 22

The two numbers are going to be close to 22.

21 + 23 = 44

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4 0
3 years ago
Read 2 more answers
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