solve pls brainliest

Answer:

70

Step-by-step explanation:

4(3m-2)+2(2m-1)

4(3×5-2)+2(2×5-1)

4×13+2×9

52+2×9

52+18

Answer:

D

Step-by-step explanation:

Area of H = 25pi

Area of J = 225pi

225pi/25pi = 9

Answer:

42.9%

Step-by-step explanation:

If 16 are men, this means 12 of the students are women (28 - 16 = 12)

So, 12 out of 28 are women = 12 ÷ 28 = 0.42857... = 42.857...% = 42.9%

Answer:

Point B

Step-by-step explanation:

Answer:

the answer is point b...

Answer:

7 3/3

Step-by-step explanation:

+3221654236583217089

[tex]\\ \sf\longmapsto V=\pi r^2\dfrac{h}{3}[/tex]

[tex]\\ \sf\longmapsto \dfrac{h}{3}=\dfrac{V}{\pi r^2}[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{3V}{\pi r^2}[/tex]

Option B

Answer:

[tex] \hookrightarrow \: { \rm{V = \pi {r}^{2} \frac{h}{3} }} \\ [/tex]

• simplify making h the subject:

[tex]{ \rm{3V = \pi {r}^{2} h}} \\ \\ { \boxed{ \boxed{ \rm{h = \frac{3V}{\pi {r}^{2} } \: }}}}[/tex]

Answer:

[tex] \frac{1}{4} (y + \frac{3}{2} )[/tex]

Answer:

The numbers are 12 and −29.

Mark me as the brainlist

Answer:

D. Subtract 15 cents and add 29 cents

Step-by-step explanation:

He should subtract 15 cents and add 29 cents. This is because at 33.85 we estimated to 34 dollars which was 15 cents higher, so we must subtract by 15 to get to the exact cost. We also need to add 29 cents since we rounded down from 16.29 to 16.

Answer:

B is the correct answer darling

Step-by-step explanation:

don't doubt yourself :)

have a lovely day <3

Answer:

B

Step-by-step explanation:

[tex]\dfrac{-1}{5}(30x-10)=15\\\\ \dfrac{-1}{5}*30x -10* \dfrac{-1}{5}=15\\\\-6x + 2 = 15[/tex]

Answer:

320

Step-by-step explanation:

80 is 25% of:

ok how we do this is 25% of something is 1/4 of something

so 80 is 1/4 of:

yep, 80 x 4.

80 x 4 is 320, there is your answer!

Yw :D

[tex]205[/tex]

hope it helps

Answer:

Step-by-step explanation:

Answer

15=20t

Step-by-step explanation:

Answer:

t = 15 / 20

Step-by-step explanation:

Given:

Distance traveled by Deon to ride a bicycle trail = 15 mile

Average speed of Deon to ride a bicycle trail = 20 mi/hour

Step-by-Step:

Let 'T' be the time taken to ride the bicycle trail.

We will use distance speed formula to write the equation to find the time 'T' in hours, for the ride.

[tex]Distance=\frac{Speed}{Time}[/tex]

Distance = 15 miles

Speed = 20 miles / hour

Time = 15 / 20

Assuming time is t, the formula would be:

t = 15 / 20

"t = 15 mi/ 20 mi/hr " will help Deon calculate the time he will take.

Therefore, t = 15 / 20

Answer:

B. 5 3/4 feet

Step-by-step explanation:

33 sq ft is the total area so you need the side lengths, its a square rug, so you just square the number

sqrt 33 = 5 3/4

Answer:

B. 5 3/4 feet

Step-by-step explanation:

33 sq ft is the total area so you need the side lengths, its a square rug, so you just square the number

sqrt 33 = 5 3/4

Answer:

CBA = 88

BCA = 44

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

1) 529

2) 20.5

3) 7,216

4) 13238.2

5) 254.75

Step-by-step explanation:

1) Multiplication 2) Subtraction and Addition 3) Addition and Multiplication 4) Subtraction 5) Multiplication and Subtraction

-ROR

Answer:

1) 529

2) 20.5

3) 720.6

4) 13238.2

5) 254.75

Step-by-step explanation:

You either multiply, add, subtract or divide the numbers.

Answer:

D. x=29

Step-by-step explanation:

(2x-10)+(4x+16)=180

6x+6=180

6x=174

x=29

Answer:

Yes I've had that too

Step-by-step explanation:

I had mine for about 5-6 months

Answer:

Yes, a concussion can cause long-term memory loss and recurring short-term memory loss, even weeks, months, or years after the head trauma. Usually, this is known as a symptom of post-concussion syndrome

Answer:

10/12

Step-by-step explanation:

Let's work backwards.

We decrease both 6 and 7 by one, then we get 5 and 6. So our new fraction is 5/6. We know that the denominator is two more than the numerator, so we have to pick numbers that are multiples of 5 and 6 and make it so the denominator is two more than the numerator.

Lucky for us we only have to multiply 5 and 6 by 2 to get an answer that works:

10/12

9514 1404 393

Answer:

  $3386.40

Step-by-step explanation:

The amount at the end of March can be found two ways:

  add up the deposits for Jan, Feb, Mar:

     1200.32 +985.43 +1200.65 = 3386.40

  subtract Apr and May from the May total:

     6374.72 -1000.98 -1987.34 = 3386.40

The total amount of money that he had deposited into his account at the end of March is $3386.40.

Answer:

136

Step-by-step explanation:

Common difference of 9 means that each term is 9 apart from each other:

1 + 9 = 10 + 9 = 19 + 9 = 28 ...

We can then find the nth term

The difference is 9 → 9n

The 0th term is 1 - 9 = -8

nth term = 9n - 8

Finally plug in (substitute) 16 for n

9(16) - 8 = 144 - 8 = 136

The 16th term is 136

Find the 16th term of the arithmetic sequence whose common difference is d=9 and whose first term is a, = 1.

We have to find the 16th term of Arithmetic Progression or sequence .

Concept of this question belongs to arithmetic progression ( sequence ) where we can find the values of a , d , nth term by using nth term formula .

We know that 16th term of a.p. is ,

Here value of ,

Substituting, value of a and d in equation 1 :

Therefore , 16th term of the given arithmetic progression is 136 .

Answer:

324

Step-by-step explanation:

9 x 12 = 108 x 3 = 324....yay

Answer: I believe it's 22

Step-by-step explanation:

51 - 7 = 44

If the result is 55 and was increased by 7, you'll subtract 7 from 55 and you'll get 44.

44/2 = 22

To find the number that is doubled and makes up 44, you'll divide 2 from 44 and you'll get 22

Using the normal distribution and the central limit theorem, it is found that:

a) The 90th percentile for an individual teacher's salary is $50,216.

b) The 90th percentile for the average teacher's salary is $43,914.

In a normal distribution 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]

In this problem:

Item a:

The 90th percentile is X when Z has a p-value of 0.9, so X when Z = 1.28. Thus:

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

[tex]1.28 = \frac{X - 41000}{7200}[/tex]

[tex]X - 41000 = 1.28(7200)[/tex]

[tex]X = 50216[/tex]

The 90th percentile for an individual teacher's salary is $50,216.

Item b:

Average for a sample of 10, thus [tex]n = 10, s = \frac{7200}{\sqrt{10}}[/tex].

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

By the Central Limit Theorem

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

[tex]1.28 = \frac{X - 41000}{\frac{7200}{\sqrt{10}}}[/tex]

[tex]X - 41000 = 1.28\frac{7200}{\sqrt{10}}[/tex]

[tex]X = 43914[/tex]

The 90th percentile for the average teacher's salary is $43,914.

A similar problem is given at https://brainly.com/question/24663213

Testing the hypothesis, we can conclude that since the p-value of the test is 0.0114 < 0.05, which means that the sample provides enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population.

At the null hypothesis, we test if the mean is the same of the general population, that is:

[tex]H_0: \mu = 50[/tex]

At the alternative hypothesis, we test if it is different, that is:

[tex]H_1: \mu \neq 50[/tex]

The test statistic is given by:

[tex]z = \frac{M - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

For this problem, the parameters are:

[tex]M = 53.8, \mu = 50, \sigma = 15, n = 100[/tex]

Then, the value of the test statistic is:

[tex]z = \frac{M - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{53.8 - 50}{\frac{15}{\sqrt{100}}}[/tex]

[tex]z = 2.53[/tex]

Two tailed test, so the p-value is P(|z| < 2.53), which is 2 multiplied by the p-value of z = -2.53.

Looking at the z-table, z = -2.53 has a p-value of 0.0057

2(0.0057) = 0.0114

The p-value of the test is 0.0114 < 0.05, which means that the sample provides enough evidence to conclude that self-esteem scores for these adolescents are significantly different from those of the general population.

A similar problem is given at https://brainly.com/question/25147864

Answer:

.

1) 1/4+___=7/12

2) 5/8-___= -3/8

3) 1/3÷___= 1/9

4) (2.1)(____)=0.63

value