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4 years ago

Im quite confused, please help :((

Mathematics

1 answer:

Sati [7]4 years ago

6 0

You need to pick from each column depending on what makes sense - they are mixed (some numbers are roots, some cubes, in the same column).

On the order:

3 - 27

4 - 64

5 - 125

512 - 8

8 - 2

729 - 9

216 - 6

1 - 1

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A rectangle has an area of (x2 − 17x + 72) square units. Since the area of a rectangle is determined using the formula, A = lw,

klasskru [66]

Answer:

length = (x − 8) units and width = (x − 9) units

Step-by-step explanation:

We need to factor

x^2 - 17x + 72

We need two numbers whose product is 72 and whose sum is -17.

The numbers are -8 and -9.

x^2 - 17x + 72 = (x - 8)(x - 9)

Answer: length = (x − 8) units and width = (x − 9) units

8 0

3 years ago

Read 2 more answers

Which answer choice best describes 3x ?<br> terms <br> constant <br> coefficient<br> factor

ludmilkaskok [199]

It is a term.....................

6 0

3 years ago

Jace receives a shipment of 700

ArbitrLikvidat [17]

So set up as a proportion. 2/25 = x/700

Cross multiply and solve for x.

25x =1400
X = 56

8 0

3 years ago

Canine hip dysplasia is a degenerative disease that causes pain in many dogs. Sometimes advanced warning signs appear in puppies

nordsb [41]

<h2>Answer with explanation:</h2>

Formula for plus-four confidence interval :

$\hat{p}\pm z^* \sqrt\dfrac{\hat{p}(1-\hat{p})}{n+4}}$

, where n= Sample size.

$\hat{p}$ = Sample proportion and $\hat{p}=\dfrac{x+2}{n+4}$

z* = Critical z-value.

Let p be the proportion of puppies area found with early hip dysplasia.

As per given , we have

n= 42

$\hat{p}=\dfrac{5+2}{42+4}=0.1522$

Since confidence interval is not given , so we assume it as 95% .

z-critical value for 95% confidence is 1.96.

Then, the required confidence interval will become :

$0.1522\pm (1.96)\sqrt{\dfrac{0.1522(1-0.1522)}{42+4}}\\\\ 0.152\pm (1.96)\sqrt{0.002805112173}\\\\ 0.152\pm 0.1038\\\\ =(0.1522- 0.1038 ,\ 0.152+ 0.1038)\approx(0.0484,\ 0.256)$

Hence, the plus four confidence interval for p = (0.0484, 0.256)

Interpretation: We are 95% sure that the true proportion of puppies area found with early hip dysplasia lies in (0.0484, 0.256).

7 0

3 years ago

sonja and jake just got married. they received $4500 in gift money and deposited it into a savings account that pays %2.85 simpl

gladu [14]

9514 1404 393

Answer:

$4884.75

Step-by-step explanation:

The amount in a simple interest account is given by the formula ...

A = P(1 +rt)

Here, we have principal P=$4500, interest rate r=0.0285, and time t=3. Then the amount in the savings account will be ...

A = $4500(1 +.0285·3) = $4500·1.0855 = $4884.75

4 0

3 years ago