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s344n2d4d5 [400]
3 years ago
10

Which situation could be represented by the equation 32.4 = 8.1x?

Mathematics
2 answers:
Reptile [31]3 years ago
7 0

Answer:

A

Step-by-step explanation:

Hope I helped

Oduvanchick [21]3 years ago
3 0

Answer:

C or A

Step-by-step explanation:

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Step-by-step explanation:

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Question 7 of 10
Mama L [17]

Answer:

B

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

Then the discriminant is

Δ = b² - 4ac

• If b² - 4ac > 0 then 2 real irrational roots

• If b² - 4ac > 0 and a perfect square then 2 real rational roots

• If b² - 4ac = 0 then 1 real double root

• If b² - 4ac < 0 then 2 complex roots

Given

x² + 3x - 7 = 0 ← in standard form

with a = 1, b = 3, c = - 7 , then

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Since b² - 4ac > 0 then 2 real irrational roots

8 0
3 years ago
The figure is made up of 2 hemispheres and a cylinder. What is the exact volume of this figure? 126π in.³ 378π in.³ 396π in.³ 64
bogdanovich [222]
The two domes or hemispheres simply have the area of a complete sphere with the same diameter.  So the total area is the area of a sphere and a cylinder...

as=(4p3^3)/3, ac=10p3^2

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7 0
3 years ago
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F(3) = 25
grandymaker [24]

Answer:

Which statement best explains how enzymes speed up a chemical reaction?

Enzymes add heat to a chemical reaction.

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Enzymes remove heat from a chemical reaction.

Enzymes are not changed as a result of a chemical reaction.

Step-by-step explanation:

6 0
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