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2 years ago

Write the decimal in words 8000.05

Mathematics

2 answers:

Ludmilka [50]2 years ago

6 0

Answer:

Eight thousand and 5 hundreths.

Step-by-step explanation:

Since there are 3 zeroes after the decimal, we know that it will be in the thousands.

Since there is 1 zero in between the 5 and the decimal point, we know it will be in the hundreths. (Dont forget the ths when dealing with decimals.)

Hope this helps!

Stella [2.4K]2 years ago

3 0

Answer:

The Answer for this question is eight thousand point zero five

I hope this helps..

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The sum of 2 time a number and -7, added to 5 times the number

DIA [1.3K]

Answer:

7x - 7

Step-by-step explanation:

Variable: X = the unknown number

2x + (-7) + 5x

= 7x - 7

4 0

3 years ago

Simplify by combining like terms 4x(x+9)+10x

Natalija [7]

Answer:

$4x^{2} + 46x$

Step-by-step explanation:

Step 1: Distribute

$(4x * x) + (4x * 9) + 10x$

$4x^{2} + 36x + 10x$

Step 2: Combine Like Terms

$4x^{2} + 36x + 10x$

$4x^{2} + (36x + 10x)$

$4x^{2} + 46x$

Answer: $4x^{2} + 46x$

6 0

2 years ago

Cathie is making a dress with a sash. The sash needs to be 72.1 inches long, but Cathie's measuring tape is only in centimeters.

sveta [45]

183.134cm is the answer

8 0

2 years ago

Find the midpoint of a segment with endpoints A(-3,10) and B(9,2).

lilavasa [31]

Answer:

(3, 6)

Step-by-step explanation:

You add the x points together and divide by two, then you add the y points together and divide by 2.

3 0

2 years ago

Read 2 more answers

A county is considering rasing the speed limit on a road because they claim that the mean speed of vehicles is greater than 30 m

DochEvi [55]

Answer:

No, at alpha equals 0.10, we do not have enough evidence to support the county's claim.

Step-by-step explanation:

We are given that a county is considering raising the speed limit on a road because they claim that the mean speed of vehicles is greater than 30 miles per hour.

A random sample of 15 vehicles has a mean speed of 31 miles per hour and a standard deviation of 4.7 miles per hour.

Let $\mu$ = true mean speed of the vehicles.

SO, Null Hypothesis, $H_0$ : $\mu \leq$ 30 miles per hour {means that the mean speed of vehicles is lesser than or equal to 30 miles per hour}

Alternate Hypothesis, $H_A$ : $\mu$ > 30 miles per hour {means that the mean speed of vehicles is greater than 30 miles per hour}

The test statistics that will be used here is One-sample t test statistics as we don't know about the population standard deviation;

T.S. = $\frac{\bar X -\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean speed of 15 vehicles = 31 mph

s = sample standard deviation = 4.7 mph

n = sample of vehicles = 15

So, test statistics = $\frac{31-30}{\frac{4.7}{\sqrt{15} } }$ ~ $t_1_4$

= 0.824

Hence, the value of test statistics is 0.824.

Now at 0.10 significance level, the t table gives critical value of 1.345 at 14 degree of freedom for right-tailed test. Since our test statistics is less than the critical value of t as 0.824 < 1.345, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region.

Therefore, we conclude that the mean speed of vehicles is lesser than or equal to 30 miles per hour which means that the county's claim is not supported.

4 0

3 years ago