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Nataliya [291]
3 years ago
14

4.25 × 0.6 = 2.04 × 1.25 True or false

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

Solve:

4.25 * 0.6 = 2.55

Steps: Multiply without the Decimal Points, Then put the decimal point in the answer.

425 * 6 = 2550

4.25 has 2 decimal places:

0.6 has 1 decimal place:

Therefore, The Answer has 3 decimal places.

2.550 =======> 2.55

Refine ========> 2.55





Solve:

2.04 × 1.25 = 2.55

Steps: Multiply without the Decimal Points, Then put the decimal point in the answer.

204 * 125 = 25500

2.04 has 2 decimal places:

1.25 has 2 decimal places.

Therefore, The answer has 4 decimal places.

2.5500 =======> 2.55

Refine ====> 2.55





Check:

The answer is TRUE.

(4.25)( 0.6 ) = (2.04 )(1.25 )

2.55 = 2.55

Therefore, Your Answer =======> TRUE













Hope that helps!!!!! : )

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Kipish [7]

Answer & Step-by-step explanation:

It is less because 2 times 3/4 is the same as 2/1 times 3/4 which is 6/4 then simplify it and you get 3/2 which then is 1 1/2.

That is why 2 times 3/4 is less than 2.

Hope that helps ;)

7 0
3 years ago
Bro please help meee
Sidana [21]

Answer:

504 in³

Step-by-step explanation:

First find the volume of the large rectangle, which is 576 in³

Then find the volume of the small rectangle, which is 72 in³

Then subtract 72 from 576 = 504

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3 years ago
A trucking firm suspects that the mean lifetime of a certain tire it uses is more than 30,000 miles. To check the claim, the fir
grandymaker [24]

Answer:

We conclude that the lifetime of tires is less than 30,000 miles.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 30,000 miles

Sample mean, \bar{x} = 29,400 miles

Sample size, n = 54

Alpha, α = 0.05

Population standard deviation, σ =1200 miles

First, we design the null and the alternate hypothesis

H_{0}: \mu = 30000\text{ miles}\\H_A: \mu < 30000\text{ miles}

We use One-tailed z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{29400 - 30000}{\frac{1200}{\sqrt{54}} } = -3.6742

Now, z_{critical} \text{ at 0.05 level of significance } = -1.64

Since,  

z_{stat} < z_{critical}

We reject the null hypothesis and accept the alternate hypothesis.

Thus, we conclude that the lifetime of tires is less than 30,000 miles.

4 0
3 years ago
1. Angle BAC = 35° and angle BCA = 20°. What is the measure of angle BAD?
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Check the picture below.

7 0
2 years ago
PLEASE HELP
aleksandr82 [10.1K]

-1., 1, 2, 2

Step-by-step explanation:

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them.

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3 years ago
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