3 years ago

-8/5 is a rational number or integers or whole number

Mathematics

1 answer:

fgiga [73]3 years ago

4 0

Rational..............................

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2v2 -5v +3 = 0 how did I do this?

anzhelika [568]

$2v2 -5v +3 = 0 \\ \\\Delta = b^{2}-4ac = (-5)^{2}-4*2*3= 25-24=1\\ \\v_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{5- \sqrt{1 }}{2*2}=\frac{5- 1}{4}= \frac{4}{4}=1\\ \\v_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{5+ \sqrt{1 }}{2*2}=\frac{5+1}{4}= \frac{6}{4}=\frac{3}{2}=1\frac{1}{2}$

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4 years ago

1-(9-4) divided by 5<br><br> help please, i need to make sure im right.. work and answer?

SSSSS [86.1K]

1-(9-4)÷5

Do parenthesis first

(9-4)=5

1-5÷5

Division

5÷5=1

1-1=0

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4 years ago

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The mean cost of a 5 pound bag of shrimp is $50 with the standard deviation of six dollars. If a sample of 40 bags of shrimp is

Lemur [1.5K]

SOLUTION

We will use the formula

$\begin{gathered} Z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}} \\ where\text{ } \\ x=51.3,\mu=50,\sigma=6,n=40 \end{gathered}$

Applying we have

$\begin{gathered} Z=\frac{51.3-50}{\frac{6}{\sqrt{40}}} \\ Z=\frac{1.3}{\frac{6}{\sqrt{40}}} \\ Z=1.37032 \end{gathered}$

Now using a Zscore calculator for 1.370320, we have

P(xHence the answer is 0.9147

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1 year ago

3. You drove 75 miles/hour for 8 hours. How far did you travel?

sasho [114]

Answer:

800

Step-by-step explanation: 75 x 8

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3 years ago

Length: 1/2 width: 1/2 height: 3/4 what is the volume?

makvit [3.9K]

Answer:

3/16

Step-by-step explanation:

The formula for Volume is V = L * W * H

The given are L = 1/2, W = 1/2, H = 3/4

Substituting the values -

V = 1/2 * 1/2 * 3/4

= 3/16

= 3/16 divide by the Greatest Common Factor (GCF) of 3 and 16 to get the lowest term

= 3/16

Therefore, the volume of the box in 3/16.

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3 years ago

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