All categories

3 years ago

Please let me know what the answer is

Mathematics

2 answers:

ratelena [41]3 years ago

8 0

Answer:

It will be A m>-6

Step-by-step explanation:

Pavel [41]3 years ago

8 0

Answer:

Step-by-step explanation:

You might be interested in

Solve y=x^2+23 for x

LenKa [72]

For this case we must clear x from the given equation:

$y = x ^ 2 + 23$

We passed 23 subtracting the other side of equality:

$y-23 = x ^ 2$

By definition, $a ^ 2 = b$ is written as $a = +/-\sqrt{b}$

So, we have:

$x = + / -\sqrt{(y-23)$

So, the solution of $y = x ^ 2 + 23$ for x is:

$x = + / -\sqrt{(y-23)$

Answer:

$x = + / -\sqrt{(y-23)$

$x1=+\sqrt{(y-23)$

$x2=-\sqrt{(y-23)$

7 0

3 years ago

How do solve this problem?

sasho [114]

Answer:

y=-2/5x+8

Step-by-step explanation:

Step 1: Begin by changing the equation into slope-intercept form. Subtract 2x to both sides to get 5y=-10-2x. Divide 5 to both sides to isolate the variable, y. You should get y=-2/5x-2.

Step 2: Because we are looking for a line parallel to the given line, the slope should be the same, but the y-intercept should be different. Remove -2 to replace it with b, so it's unknown. The equation should be y=-2/5x+b. Plug in the ordered pair, (10, 4), into the equation to get 4=-2/5(10)+b. Multiply -2/5 and 10 to get -4. Add -4 to both sides and b=8. Plug in 8 and your final equation should be y=-2/5x+8.

6 0

3 years ago

NEED HELP ASAP!!!!!!!!!!!!!!!

PilotLPTM [1.2K]

Area of rectangle =lxb =answer

4 0

3 years ago

Read 2 more answers

Type the correct answer in the box. assume π = 3.14. and round your answer to the nearest hundredth. at the rate of $2.00 per sq

spin [16.1K]

The cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.

<h3>How to find the area of the composite figures?</h3>

To find area of the composite figures,

Separate the figure.
Calculate the are of the each figure by which the composite figure is made of.
Add the area of all the individual figures to get the total area of composite figures.

The dimentions of the rectangle is 3 by 4 foot. The area of the rectangle is,

$A_r=3\times4\\A_r=12\rm \;ft^2$

The radius of the semicircle is 1.5 m. The area of the semicircle is,

$A_{sc}=\dfrac{1}{2}\pi\times(1.5)^2\\A_{sc}=\dfrac{1}{2}(3.14)\times(1.5)^2\\A_{sc}=3.5325\rm\; ft^2$

The area of the composite figure is,

$A=12+3.5325\\A=15.5325\rm\;ft^2\\$

The rate of painting is $2.00 per square foot. Thus the cost to paint the figure is,

$A=15.5325\times2\\A=31.065$

Hence, the cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.

Learn more about the area of composite figures here;

brainly.com/question/15981553

8 0

3 years ago

The Census Bureau reports that 82% of Americans over the age of 25 are high school graduates. A survey of randomly selected resi

SVETLANKA909090 [29]

Answer:

a) Mean = 1030; Standard deviation = 12.38.

b) The county result is unusually high.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by

$Z = \frac{X - \mu}{\sigma}$

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

(a) Find the mean and standard deviation for the number of high school graduates in groups of 1210 Americans over the age of 25.

This first question is a binomial propability distribution.

We have a sample of 1210 Amricans, so $n = 1210$ .