HELP! THIS IS DUE TODAY, and i will mark brainlest!

Answer:

16

Step-by-step explanation:

1st group = 30% or .3 as a decimal

.3 * 40 = 12

2nd group = ate 7

Third group = 1/8 or .125 as a decimal

.125 * 20 = 5

12 + 7 + 5 = 24

40 -24 = 16

Answer:

there is no enough data to find the answer

Answer:

Step-by-step explanation:

132 degrees

Step-by-step explanation:

2x+7x-5=10

2x+7x= 10+5= 15

2x ×9=15

2x =15-9=5

x=5/2=2.5

Answer:

The area of the semi-circle is 35.8 cm².

Step-by-step explanation:

The length of the arc is given by:

[tex] s = r\theta [/tex]   (1)

Where:

s: is the length of the arc of semi-circle = 15 cm

r: is the radius

θ: is the angle in radians    

Since we need to calculate the area of the semi-circle, the angle is:

[tex] \theta = \frac{360}{2} = 180 = \pi [/tex]  

From equation (1) we can find the radius:

[tex] r = \frac{s}{\theta} = \frac{15}{\pi} [/tex]    

Now, the area of the semi-circle is:              

[tex] A = \frac{\pi r^{2}}{2} = \frac{\pi (\frac{15}{\pi})^{2}}{2} = 35.8 cm^{2} [/tex]

Therefore, the area of the semi-circle is 35.8 cm².

I hope it helps you!                          

Answer: 3 and 7

Step-by-step explanation: 3 and 7 because they don't go into anything less than 21, so multiply them together, and you'll get 21

Answer:

qwertzuiopsadfghjkly

Answer:

The mode is 75

Step-by-step explanation:

75

Hope this helped you !

Answer:

b

Step-by-step explanation:

so pay attentyion t the numbners

Answer:

It is -0.465 when you add it to the nearest thousandth

Step-by-step explanation:

Answer:

4 if you are subtracting, 32 if you are multiplying, 12 if you are adding, and 2 if you are dividing.

Step-by-step explanation:

Hope this helps.

Answer:

its square root 53 cuz it cant be simpler

Answer:

Yes, the car was speeding. I agree with Nico.

Step-by-step explanation:

When you divide 98 miles by 1.7 hours, the answer is 57.6470588. I agree with Nico because it is okay to round because no matter what, the number before the decimal number (57) will always be a greater number than 55. It is easier to round the number for the equation, so Nico is correct in this situation.

Hope this was helpful!! Mark brainliest if so!!!

Have a fantabulous day!!

Answer:

1. 2

2. 5.2

3. (c * 2) - 3= a

4. ($85 + $35 * h)

Step-by-step explanation:

1. |4−2| (simplified)

= |2|

=2

2. 2a^2 = 5.2

(22)(1.3)

=(4)(1.3)

=5.2

(2.6 - (2*1.3))=

5.2 - (2.6 - 2.6) = 5.2

3. (c * 2) - 3= a

4. ($85 + $35 * h)

Answer:

She took a photo of him and developed it in the dark room.

Step-by-step explanation:

Answer:

The woman is obviously bats%!t insane.

Step-by-step explanation:

What else is there to say..

Answer:

the answer is 7

Step-by-step explanation:

Compounded Continuously:

A=Pe^rt

A=8600

P=7600

r=0.019

8600=7600e^0.019t

[tex]\frac{x}{y} 8600\\ 7600[/tex] =[tex]\frac{x}{y} 7600e^0.019t\\7600[/tex]

1.1315789=e^0.019t

In(1.1315789)=e^0.019t

ln(1.1315789)=

\,\,0.019t

0.019t

6.5059977=t

t=7

thxxxx byee

Answer:

a) Wel can plant four full roes

b) George can plant five full rows

Step-by-step explanation:

The number of seeds in the packet of seeds Wel and George have, n = 20 seeds each

The length of each row of the garden = 10 yards = 30 feet

The distance between the seeds Wel plants, d = 4 feet

The point at which Wel starts to plant the seeds = 4 feet from the end of the row

The distance between the seeds George plants = 2 yards

The point George starts to plant the seeds = 2 yards from the ends his row

Therefore, we have;

a) The length of each row Wel plants her seeds, l = 10 yd. - 4 ft. = 26 ft.

The number of seeds she plants per row = The whole number part of l/d

l/d =  26 ft./(4 ft./seed) = 6.5 seeds

∴ The number of seeds she plants per row, s = 6 seeds

The number of rows Wels plants her seeds, r = The next whole number of the ratio,  n/s =

n/s = 20/6 = 3.[tex]\overline 3[/tex]

∴ The number of rows Wels plants 4 full rows

Therefore;

Using just her packet of seeds, Wels can plant four rows in the garden

b) The length of each row George plants his seed = 10 yd. - 2 yd. = 8 yd.

The number of seeds he plants per row = 8 yd./row/(2 yd./seed) = 4 seeds/row

The number of rows he plants his seeds = 20 seeds/(4 seeds/row) = 5 rows

The number pf rows George plants his seeds = 5 rows

Using just his packet of seeds, George can plant 5 full rows

Answer:

angle bac is the answer

Step-by-step explanation:

both rays emanate from the shared point 'a', which will be the vertex of angle bac

Answer:

130 students

Step-by-step explanation:

12/30 have pets

12:30

2:5

2/5 × 325= 130

130 students will be the correct answer

Answer:

1 1/8 cups of oatmeal b/c 2 1/4 ÷ 2 = 1 1/8 ( one and one eighth)

Step-by-step explanation:

If its not 1 1/8 then its 3 3/8 (i saw that answer on quizziz)

Answer:

D.

(DNE)

Step-by-step explanation:

when you plug in 1 to the denominator, 1 minus 1 becomes 0. a fraction with 0 as the denominator does not exist.

The limit of the function f(x)=[tex]x^{3}-1[/tex]/x-1 as x approaches 1 is 3.

Limit is the value that a function approaches as the value of variable approaches some value. They are essential to calculas and mathematical analysis and are use to define continuity , derivatives and integrals. It can change value of function at different values of x.

We have been given a function f(x)=[tex]x^{3}-1[/tex]/x-1 and we have to find the limit of function.

F(x)=[tex]x^{3} -1[/tex] /(x-1) [[tex]x^{3} -y^{3} =x^{2} +y^{2} +xy[/tex]]

[tex]\lim_{x \to \0}x^{3}-1/x-1[/tex]

[tex]\lim_{x \to \0} (x-1)(x^{2} +1+x)[/tex]/x-1

[tex]\lim_{x \to \0} x^{2} +x+1[/tex]

change limit by putting x=1-h

[tex]\lim_{h \to \0} (1-h)^{2} +1+1-h[/tex]

Put the value of h=0.

=1+1+1

=3

Hence the limit of the function [tex]x^{3}-1/x-1[/tex] is 3.

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Answer:

hope this will help you more...good luck

Answer: The first graph demonstrates the best measure of center!

P.s if you feel this answer is satisfactory please mark it brainiest. I need it for my rank.

Answer:

12

Step-by-step explanation:

All of the angles in a triangle will sum up to 180. So, if you are given 2 of the angles you can find the missing angle, x, using an algebraic equation. Set up the equation 180-(120+45)=x and solve. This equals 12=x.

15 degrees

7x-10+6x-5=180

13x=180

x=15

Answer:

y = 1/7x - 8/7

Step-by-step explanation:

y = 7x+8

x=7y+8

x-8 = 7y

1/7x-8/7 = y

The inverse of the given function f(x) = 7x + 8 is equal to

g(x) = [x - 8] / 7.

A variable y is said to be a function of the independent variable x if there is a relationship between them such that whenever a numerical value is assigned to x, there is a rule that determines a specific value of y.

As per the given data:

We are given a function f(x) and we have to find its inverse.

For finding the inverse of a function, we need to express x in terms of f(x).

7x + 8 = f(x)

7x = f(x) - 8

x = [f(x) - 8] / 7

Let's assume the inverse of f(x) is g(x).

g(x) = [x - 8] / 7

The inverse of the given function f(x) = 7x + 8 is equal to g(x) = [x - 8] / 7.

Hence, The inverse of the given function f(x) = 7x + 8 is equal to

g(x) = [x - 8] / 7.

To learn more about Function, click:

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Answer: -188

Step-by-step explanation: i had to subtract 3 63 times and i got -188

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Explanation

We start in the first row at the very left side. The first two digits are the '2' and '4', and they form the value 24. Since 24 is not in the interval from 00 to 14, this means that the first randomly selected student is not left-handed.

The next two digits are 0 and 0. This forms 00 and represents a left-handed student because now we are between 00 and 14. Make a tally of how many left-handed students you count.

As we keep reading across the row, the next two digits are 0 and 7 and they combine to 07. This is another left handed student. However, the student after that is not left-handed since 59 is not in the range from 00 to 14.

Here's a list of all the values we read from the table, and if they're left handed or not:

There are 3 left-handed people in our sample. The table values were: 00, 07, and 09 in that order from left to right.

So that's why the answer is 3.

If you start at another point in the random-number table, then it may be likely that you'll get a different answer. Also, if you decide to read the table in a different way, then you may likely get a different answer.

Answer:

x=-0.38 or -2.62

Step-by-step explanation:

x²+3x-1=0

using the general formula...

-b±√b²-4ac/2a

a=1

b=3

c=1

-3±√3²-4(1×1)/2×1

-3±√9-4/2

-3±√5/2

-3+√5/2 or -3-√5/2

-0.38 or -2.62