First, you have to answer the question in simplest form:
<span>3x - 4y = 5 (Subtraction property of equality) Subtract both sides by -3x.
-4y = -3 +5 (Divide both side by -4.))
</span>y = 3/4x(slope) 4/5 y-intercept.

8 0

3 years ago

Describe the cross section that will result if the pyramid is sliced horizontally (parallel to the base).

Brut [27]

Answer:

Pentagon

Step-by-step explanation:

6 0

3 years ago

Use the given data to find the minimum sample size required to estimate a population proportion or percentage. Margin of error:

lisabon 2012 [21]

Answer: 191

Step-by-step explanation:

Formula to find the minimum sample size required to estimate a population proportion or percentage:

$n= \hat{p}(1-\hat{p})(\dfrac{z^*}{E})^2$

, where $\hat{p}$ = proportion estimated by prior study.

E= Margin of error.

z* = Critical z-value.

Given : Confidence level = 95%

Critical value for 95% confidence = z*=1.96

$\hat{p}=\ 42\%=0.42$

E= 7%= 0.07

Then, $n= 0.42(1-0.42)(\dfrac{1.96}{0.07})^2$

$n= 0.42(0.58)(28)^2$

$n= 0.2436(784)=190.9824approx191$

Hence, the minimum sample size required=191

6 0

3 years ago

What is 30 percent of 38

stepladder [879]

Answer: 11.4

Simply multiply 38 by .30 to find the percentage of the number.

5 0

3 years ago