help help math math help​

Answer:

84

Step-by-step explanation:

7-5=2

2u-> 14

1u->7

7+5=12

12u-> 84

Answer:

boy=5  girls=7 + 14= 21 girls

Step-by-step explanation:

Answer:46

Step-by-step explanation:

Answer:

200*23/100=46

Step-by-step explanation:

Hope it helps

If you mean,

[tex] \frac{3}{4} - 4x + \frac{1}{2} x - \frac{1}{2} + \frac{1}{2}x[/tex]

Then the answer would be,

[tex] \frac{1}{4} - 3x[/tex]

But if you mean,

[tex] \frac{3}{4} - 4x + \frac{1}{2x} - \frac{1}{2} + \frac{1}{2x} [/tex]

Then the answer would be,

[tex] \frac{1}{4} - 4x + \frac{1}{x} [/tex]

Step-by-step explanation:

2(22/7)12²+2(22/7)(12)(18)

=2021.9

Answer:

true

Step-by-step explanation:

The only postulates that will not prove congruence is AAA and SSA

Answer:

Step-by-step explanation:

(-3+8*2-3)

first multiply 8 and 2= (-3+16-3)

then just do it order:

(-3+16-3)

= 10

Follow the order of operation

Parentisis

exponents

multiplication

divison

sqaure root

Answer:

Step-by-step explanation:

Divide the area into 3 parts as below.

Calculate each area and add up:

Total area:

Answer:

Step-by-step explanation:

So what you need to do is mark to points on the graph. For example (9,4) and (18,8). The run would be 9 and the rise would be 4. Gradient = rise/run which is 4/9. So that's the gradient. Now it asks for the equation. The formula for an equation is y=mx+c m= the gradient and c = the y-intercept (the y intercept is where the line meets the axis so it would be 0) so the answer is: y=4/9x+0.

Hope this helped !!

Answer:

1) 2 5/9

2) 4 5/6

3) 4 3/8

4) 5 3/5

5) 7 1/3

6) 6 1/9

7) 7 1/8

8) 2 2/9

9) 5 3/4

Step-by-step explanation:

Hope this helps

Answer:

it is . what it is lol

Step-by-step explanation:

Answer:

The answer is 60

Step-by-step explanation:

reasoning: we know that in a triangle all three sides add up to 180

SO we can divide 60 by 180 which is 3.

we can also do 180-60 which is 120 then find out what is half of 120 which is 60.

Pls brainliest have a good day!

Answer:

its A

Step-by-step explanation:

Answer:

1150 because 400 + 394 + 388 = 1182 - 32 = 1150.

Answer:

1150

Step-by-step explanation:

remember pemdas?

its a easier way to read this equasion!

parenthases

(400 + 394 + 388) = 1182

subtraction

1182 - 32 = 1150

hope this helped!

please mark me the brainliest if you can :]

Answer:

1. 68%

2. 95%

3. 99.7

Step-by-step explanation:

Standard deviation of mean will be 68%, 95%, and 99.73% respectively.

A statistical rule known as the empirical rule, which is also known as the three-sigma rule or the 68-95-99.7 rule, states that almost all observed data for a normal distribution will be within three standard deviations of the mean or average.

Given according to the empirical rule, 68% of observations will fall within the first standard deviation (µ ± σ), 95% will fall within the first two standard deviations (µ ± 2σ), and 99.7% will fall within the first three standard deviations(µ ± 3σ) .

Hence SD  of mean will be 68%, 95%, and 99.73%

Learn more about Empirical Rule;

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Answer:

y=15x+5

Step-by-step explanation:

Answer:

Step-by-step explanation:

You have the hypotenuse and the adjacent, so use cosine.

SOHCAHTOA

Take the inverse cosine of both sides, which requires a calculator

cos(Ф) = 7/25

Ф = 73.74°

Lower quartile. The correct option is A

The lower quartile, often known as the first quartile or Q1, is a measure of central tendency that separates the bottom 25% of a data set from the rest of the data.

In this instance, five out of the 20 students received scores of 70 or lower, which equals a 25% proficiency rate.

Therefore, 70 or below is the lower quartile.

Learn more about Lower quartile here : brainly.com/question/28169373

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Answer:

61,600

Step-by-step explanation:

56,000 x 1.1= 61,600

Answer: 8 units squared

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

TRI 1-2

TRI 2-2

SQU-4

Answer:

B 4.05^3

Step-by-step explanation:

Just mulityply

Answer:

what????

Step-by-step explanation:

I can't understand

Answer:

The sum of the angle measure of a triangle in hyperbolic geometry is less than 180 degrees!

A)The sum of the angle measures of a triangle is less than 180°.

In spherical geometry, there aren't any such strains. In hyperbolic geometry, there are at least awesome traces that bypass via the point and are parallel to (in the same plane as and do no longer intersect) the given line.

A study of hyperbolic geometry enables us to break away from our pictorial definitions with the aid of supplying us with a world in which the pics are all changed but the exact means of the words used in every definition stay unchanged. hyperbolic geometry facilitates our to focus on the importance of phrases.

Learn more about hyperbolic geometry here: https://brainly.com/question/8531346

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Rectangular prisms can be classified based on how their bases and lateral faces intersect or meet. A right rectangular prism has bases that are perpendicular to its lateral faces, meaning that they meet at right angles

Answer:

the slope is 4 and the y intercept is -2

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

Given

f(x) = x² - x

Then

f(-5) = (-5)² - (-5)

= 25 + 5

= 30