[tex]b + \sqrt{b} \: \: \: \: - 12[/tex]
factorize it
​

Answer: its 3x+20 to my calculations

Step-by-step explanation:

Answer: multiply the other side by 3 also

Step-by-step explanation:

What happens to one side must also happen to the other side. This is the only way to keep equations equal when changing constants and variables

Answer:

Here is another one solved.

Answer: B

Step-by-step explanation: 20% is correct

Answer:

The population mean

Normally distributed

Please give me brainliest, I really need it.

a)As the number of surveys increases, the mean of the sample means will approach the population mean.

b)Means will be normally distributed.

A normal distribution is a probability distribution that is symmetric about the mean, and data near the mean are more frequent than data far from the mean.

As the number of surveys increases, we will have more data.

So, the mean of the sample means will approach the population mean.

Means will be normally distributed because each survey has the same number of respondents.

Thus, a)as the number of surveys increases, the mean of the sample means will approach the population mean.

b)Means will be normally distributed.

To get more about normal distribution visit:

https://brainly.com/question/4079902

Answer: m ≥ 13

m + 7 ≥ 20

Step-by-step explanation:

you basically subract 7 from 20 and 7

7-7 will cancel each other out 20-7 will give you = 13

m ≥ 13 is your answer

Answer:

No, it is not a function because they should be going to their designed areas Hope this helped/.

Step-by-step explanation:

9514 1404 393

Answer:

  7. D: (-∞, ∞); R: [3, ∞); see attached for a graph (red)

  8. a=0; see attached for a graph

Step-by-step explanation:

7. The function is a polynomial, so its domain is all real numbers.

The parabola opens upward. It has a minimum value of 3. The range is y ≥ 3.

__

8. Putting the given point coordinates in the equation, we can solve for a.

  f(7) = 6

  6 = a(7 -5)² +6

  0 = a(2²)

  0 = a

The value of a is zero.

(The given point has the same y-value as the vertex, but is not the vertex. The function can only go through that point if it is a horizontal line (not a parabola).) The attachment shows a graph.

Answer:

it's 9.5 ft.............................

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Answer:

y=12x+10

Step-by-step explanation:

hope this helps sorry if I'm wrong

Answer:

the answer is c

Step-by-step explanation:

your equation is to solve the circle so A could not be the answer B/c it can't be 9.the answer is c or d. But d can't give you 3 if you solve it. so the answer is C

Answer:

The easiest way to figure this is to find P(no girls in 5 births) = (1/2)^5 = 1/32 -------------- The P(at least one girl in 5 births) = 1 - 1/32 = 31/32

The probability that when they have five children, at least one of them is a boy is 31/32

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome/Total outcome:

The probability that a couple will have a boy or girl among the five children = 1/2

If they gave birth to 5 children:

The probability that when they have five children, at least one of them is a boy = 1 - (1/2)^n where:

n is the total number of children

The probability that when they have five children, at least one of them is a boy = 1 - (1/2)ⁿ

The probability that when they have five children, at least one of them is a boy = 1 - (1/2)⁵

The probability that when they have five children, at least one of them is a boy = 1- 1/32 = 31/32

Hence the probability that when they have five children, at least one of them is a boy is 31/32

Learn more here: https://brainly.com/question/13604758

Answer:

At least 26 questions to get around an 82% not 25 because that equals 78%

Step-by-step explanation:

Answer:

Kevin answered 24 questions correctly.

Kevin would have to answer 25.6 questions correctly to get more than 80%.

Answer:

yessir

Step-by-step explanation:

Answer:

75°

Step-by-step explanation:

All parallel lines will meet their transversal (the line going through them) at the same angle. We can imagine sliding line m up to line l until the two are overlapping, and naturally all of those angles at the intersection will overlap, too. ∠6 will overlap ∠2, so the two angles are congruent. If m∠6 = 75°, then m∠2 = 75°!

Answer:

2-18

4-16

8-24

9-36

10-40

Step-by-step explanation:

they are all multiples of 4, because every cup of cornmeal is 4 gallons of water

Answer:

2:8

4: __

8:32

9:36

10:40

Step-by-step explanation:

I got the same question too but for 4:__ I got it wrong all I know is that it wouldn't be 12! Sorry that I couldn't finish all of it!!  

Answer:

1. -25

2. 2.1

Step-by-step explanation:

-1/2(x + 5) = 10

divide both sides by 2.

-1(x + 5) = 20

-(x + 5) = 20

-x = 20 + 5

x = -25

k/3.5 + 7.4 = 8

2k/7 +37/5 = 8

10k = 280 - 259

10k = 21

k = 21/10 (2.1)

Answer:

1.x=15

2.k=2.1

Step-by-step explanation:

1.-1/2(x+5)=-10

 -x+5/2=-10 multiply both sides by 2

  -x-5=-10

  -x=-20+5

 -x=-15 multiply both sides by -1

  x=15

2.k/3.5+7.4=8

 k/3.5=8-7.4

  k/3.5=0.6

 multiply both sides by 3.5

  k=2.1

Answer:

The original price would be $75

Step-by-step explanation:

I just used a calculator

Answer:

True

True

True

False

Step-by-step explanation:

15/18 simplified is 5/6

3/5 multiply both numerator and denominator by 20 to get 60/100

20/14 simplified is 10/7

4/13 multiply both by 2.5 to get 10/32.5 and 32.5 does not equal 32

Answer:

Step-by-step explanation:

[tex]\frac{5}{6}=\frac{15}{18}[/tex]

Cross multiply

5 *18 = 15 *6

90  = 90

True. They are in proportion

[tex]\frac{3}{5}=\frac{60}{100}[/tex]

Cross multiply

3*100 = 60 *5

300   = 300

True. They are in proportion

[tex]\frac{20}{14}=\frac{10}{7}[/tex]

Cross multiply

20*7 = 10*14

140  = 140

True. They are in proportion

[tex]\frac{4}{13}=\frac{10}{32}[/tex]

Cross multiply

4*32  = 10*13

128    ≠ 130

False. They are NOT in proportion

Answer:

The probability is 0.508 = 50.8%.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. 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, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Normally distributed with a mean weight of 0.8544 g and a standard deviation of 0.0525 g.

This means that [tex]\mu = 0.8544, \sigma = 0.0525[/tex]

If 1 candy is randomly​ selected, find the probability that it weighs more than 0.8535 g.

This is 1 subtracted by the pvalue of Z when X = 0.8535. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{0.8535 - 0.8544}{0.0525}[/tex]

[tex]Z = -0.02[/tex]

[tex]Z = -0.02[/tex] has a pvalue of 0.492

1 - 0.492 = 0.508

The probability is 0.508 = 50.8%.

Answer:

13. 8

14.3

15.5

17.3

18.4

19.10

Answer:

60.46%

Step-by-step explanation:

Question: On this dartboard, the circle with 1-m radius is inscribed in an equilateral triangle. Find the probability that a dart that hits the board lands in the circular region. Justify your answer.

Let's start by finding the length of one of the sides of the equilateral triangle. We can do this by creating a 30-60-90 triangle from the radius of the inscribed circle.

I attached an image of what this should look like.

Solving for the length of half of the base of the equilateral triangle gives us 1√3. To get the length of the entire base of the triangle, we will double this value:

The area of an equilateral triangle is [tex]\displaystyle A=\frac{s^2 \sqrt{3} }{4}[/tex].

We can substitute the known value of s (side length) into the formula and solve for A.

The area of the equilateral triangle is 3√3.

Now, let's solve for the area of the inscribed circle. The formula for the area of a circle is [tex]\displaystyle A= \pi r^2[/tex].

We know the radius of the circle is 1, so let's substitute 1 for r:

The area of the inscribed circle is π.

To find the probability of the dart hitting a specific area on the dartboard, we will divide the desired area by the total area of the dartboard.

The probability that a dart that hits the board lands in the circular region is about 60.46%.

Answer:

90+42+x = 180

132+x=180

x=180-132

x=48

Answer:

48 DEGREES

Step-by-step explanation:

First you need to find the other two angles : 42 + 90 = 132 ( the 90 comes from the little square like shape on the other angle).

So x = 180 - 132 = 48 ( we use 180 because it is the sum of interior angles of a triangle.

HOPE THIS HELPED

9514 1404 393

Answer:

  y -3 = -1/2(x +10)

Step-by-step explanation:

Given a point and a slope, it is reasonable to use the point-slope form of the equation for a line.

  y -k = m(x -h) . . . . . . . . line with slope m through point (h, k)

Your line has slope m = -1/2 through point (h, k) = (-10, 3). Putting these values into the appropriate form your equation is ...

  y -3 = -1/2(x +10) . . . . point-slope form equation

__

  y = -1/2x -5 +3 . . . . eliminate parentheses, add 3

  y = -1/2x -2 . . . . . . . . . slope-intercept form equation

Answer:

g(6)

g(x)=-2x

g(6)=-2(6)

g(6)=-12

-12

that the answer

Step-by-step explanation:

[tex] \frac{47}{5} [/tex]