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3 years ago

Please help I really need it no guessing it’s a test

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

8 0

aredy every IV d its . $isnt it a it's if because creed d Its$

sashaice [31]3 years ago

7 0

Answer:

Step-by-step explanation:

An algebraic expression will NEVER have an equal sign. It can have variables, constants, and operating symbols. It's only a phrase, not the whole sentence, so it doesn't include an equal sign.

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Write in expanded form 51.242.<br>

lord [1]

Answer:

50 + 1 + $\frac{2}{10}$ + $\frac{4}{100}$ + $\frac{2}{1,000}$

Step-by-step explanation:

This is the answer because:

1) 50 and 1 equal to 51

2) The fraction forms of a decimal number is: the decimal number/the decimal number place value

3) Therefore, the answer is 50 + 1 + $\frac{2}{10}$ + $\frac{4}{100}$ + $\frac{2}{1,000}$

Hope this helps!

3 0

3 years ago

1/4 2/10 correct comparison answer

lubasha [3.4K]

Not exactly

2/10 = .2
1/4 = .25

1/4 is 0.05 bigger than 2/10

4 0

3 years ago

Read 2 more answers

Which of the following are binomials? Check all that apply.

Nezavi [6.7K]

<span>Binomial is the sum of two monomials.
</span>
$\text{binominals:}\\\\C.\ x^2+18\\D.\ x+2$
<span />

7 0

3 years ago

You have been doing research for your statistics class on the prevalence of severe binge drinking among teens. You have decided

Serggg [28]

Answer:

(1.218 ; 1.322)

the confidence interval is appropriate

Step-by-step explanation:

The confidence interval :

Mean ± margin of error

Sample mean = 1.27

Sample standard deviation, s = 0.80

Sample size, n = 914

Since we are using tbe sample standard deviation, we use the T table ;

Margin of Error = Tcritical * s/√n

Tcritical at 95% ; df = 914 - 1 = 913

Tcritical(0.05, 913) = 1.96

Margin of Error = 1.96 * 0.80/√914 = 0.05186

Mean ± margin of error

1.27 ± 0.05186

Lower boundary = 1.27 - 0.05186 = 1.218

Upper boundary = 1.27 + 0.05186 = 1.322

(1.218 ; 1.322)

According to the central limit theorem, sample means will approach a normal distribution as the sample size increases. Hence, the confidence interval is valid, the sample size of 914 gave a critical value at 0.05 which is only marginally different from that will obtained using a normal distribution table. Hence, the confidence interval is appropriate

8 0

3 years ago

Efectuati impartirea 12xy:3x

adelina 88 [10]

In this question , we have to simplify the given ratio, which is

12xy:3x

First we have to see which factor is common in numerator and denominator,

We can write 12 as 3 times 4, that is

$3*4x*y :3x$