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3 years ago

6

Layla drew a quadrilateral with 4 right angles and 2 pairs of opposite sides sides that are parallel.What quadrilateral best des

cribes her drawing?

1 answer:

marishachu [46]3 years ago

8 0

The answer is Rectangle

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30 POINTS. please do not guess, i will make sure you get reported for it,

Greeley [361]

Answer:

34

Step-by-step explanation:

23+15;

175-100

=75

":)

don't report this is the correct answer

5 0

3 years ago

2) Dave borrowed $475 from his credit union at a rate of 5.5% for 2 years. How much will he have to pay them back? *

zlopas [31]

Answer

$55

Step-by-step explanation:

Finance charge = Interest + Other costs

= $50 + 5

= $55

4 0

3 years ago

1 tenth of 1,700,000.00

Zielflug [23.3K]

The answer is 170,000.

3 0

3 years ago

A sample of 1500 computer chips revealed that 37% of the chips fail in the first 1000 hours of their use. The company's promotio

andreyandreev [35.5K]

Answer:

$z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59$

Step-by-step explanation:

Data given and notation

n=1500 represent the random sample taken

$\hat p=0.37$ estimated proportion of of chips fail in the first 100 hours

$p_o=0.39$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the actual percentage that fail is different from the stated percentage. Find the value of the test statistic.:

Null hypothesis: $p=0.39$

Alternative hypothesis: $p \neq 0.39$

When we conduct a proportion test we need to use the z statisitc, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.37 -0.39}{\sqrt{\frac{0.39(1-0.39)}{1500}}}=-1.59$

3 0

3 years ago

Simplify to create an equivalent expression. −y−3(−3y+5)

navik [9.2K]

Answer:

$\large\boxed{-y-3(-3y+5)=8y-15}$

Step-by-step explanation:

$-y-3(-3y+5)\qquad\text{use the distributive porerty}\ a(b+c)=ab+ac\\\\=-y+(-3)(-3y)+(-3)(5)\\\\=-y+9y-15\qquad\text{combine like terms}\\\\=(-y+9y)-15\\\\=8y-15$

4 0

4 years ago