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34kurt
3 years ago
15

A loan was taken out for $1000 Sierra pays $50 per month what is the equation ?

Mathematics
2 answers:
Marina CMI [18]3 years ago
5 0

Answer:

1000-50m

Step-by-step explanation:

kipiarov [429]3 years ago
4 0

Well judging off how this is worded if she's paying back the loan then it would be 1000 divided by 50=x the answer without interest if it was towards something else I need to know the the amount .

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What are the roots of the equation? 2x2+x=6 Select each correct answer.
Georgia [21]

Answer:

x = 2

Step-by-step explanation:

2x2=4

4+2=6

6=6

There hope that is what you are looking for

3 0
3 years ago
How much of salt would you get if you evaporate all water from 20g of a 17% salt solution?
vredina [299]

Answer:

3.4 grams

Step-by-step explanation:

The water 20g has salt solution of 17%.

If you were to evaporate all the water.

17% × 20

0.17 × 20 = 3.4

You would get 3.4 grams of salt.

8 0
3 years ago
The square abcd has side length 10cm. E is the midpoint of BC. Work out the length of DE. Answer to 1 decimal place.
Levart [38]

-- DEC is a right triangle.

-- DC is one side of the square  =  10 cm
-- EC is half the side of the square = 5 cm
-- DE is the hypotenuse = square root of (5² + 10²)  =  √(125 cm²) .

<em>-- Truncated</em> to one decimal place, that's  11.1 cm. 

<em>-- Rounded</em> to one decimal place, it's 11.2 cm.


4 0
3 years ago
Read 2 more answers
Write each expression in EXPONENTIAL form and find its VALUE.
spin [16.1K]
(3/5)^2=9/25
the answer to the question
3 0
3 years ago
Weight gain during pregnancy. In 2004, the state of North Carolina released to the public a large data set containing informatio
pychu [463]

Answer:

1. B. H0: μ1−μ2=0, HA: μ1−μ2≠0

2. z=1.2114

3. P-value=0.2257

4. Do not reject H0

Step-by-step explanation:

We have to perfomr an hypothesis test to see if there is strong evidence that there is a significant difference between the two population means.

The null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a: \mu_1-\mu_2\neq0

Being μ1 the mean average gain for younger mothers and μ2 the mean average gain for mature mothers.

(NOTE: we are comparing means, not proportions, as it is the random variable is the weight gain).

As we are claiming "strong evidence", the level of significance will be 0.01.

For younger mothers, the sample size is n1=840, the sample mean is 30.7 and  the sample standard deviation is s1=14.91.

For mature mothers, the sample size is n2=132, the sample mean is 29.15 and the sample standard deviation is s2=13.46.

The difference between means is

M_d=\mu_1-\mu_2=30.7-29.15=1.55

The standard error of the difference between means is

s_M=\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}}=\sqrt{\dfrac{14.91^2}{840}+\dfrac{13.46^2}{132}}=\sqrt{ 0.2647+1.3725}=\sqrt{1.6372}\\\\\\s_M=1.2795

Then, the statistic can be calculated as:

z=\dfrac{M_d-(\mu_1-\mu_2)}{s_M}=\dfrac{1.55-0}{1.2795}=1.2114

The P-value for this z-statistic in a two tailed test is:

P-value=2P(z>1.2114)=0.2257

As the P-value is greater than the significance level, the null hypothesis failed to be rejected.

There is no enough evidence to claim that the real average weight gain differs from mature and youger mothers.

5 0
3 years ago
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