Mathematics High School

PLZZ HELP I HAVE A TEST 20 POINTS
3( -2)(+3)(+4)

Answers

Answer 1

Answer:

8

Step-by-step explanation:

add ur positives

3+3+4=10

now add ur negative

10+ (-2)

8

Answer 2

I think the answer is -72. I'm not very sure, but I solved the equation the way I understood it, and I got -72.

Related Questions


Find the values of a and b.
8
100%
6
b
45°
a

Answers

Answer:

i dont know sorry

Step-by-step explanation:

WILL GIVE BRAINLIEST

Answers

Answer:

i think its no. D because if we minus 12-6 then 6

Answer:

the height rounded is 6

What prime factor is common to 35, 84 and 21? ​

Answers

Answer:

7

Step-by-step explanation:

solve the system through elimination​

Answers

Answer:

x=3

y=1

Step-by-step explanation:

-2x - 7y = -13

3x + 6y = 15

3(-2x - 7y = -13) = -6x - 21y = -39

2(3x + 6y = 15) = 6x + 12y = 30

-6x - 21y = -39

----------------------  The -6x and 6x cancel out, 12 - 21 is equal to 9, 30 - 39 = -9

6x + 12y = 30

Therefore, you can say that -9y = -9 so y = 1

FInally, plug that back into either one of the original equations:

3x + 6(1) =15

3x = 9

x = 3

A total of 228 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?

Answers

Answer:

152

Step-by-step explanation:

Let x be the number of children tickets sold

2x+x=228

combine like terms

3x=228

x=76

adult tickets is two times the amount of x

2x=152

I need help quick. Please help I don’t understand.

Answers

The answer would be A

Answer:

C

Step-by-step explanation:

The y-intercept of the line is -4, immediately eliminating D. The two definite points on the graph I could visually confirm were (0,-4) and (1, -1). You had to "rise" 3 units and "run" 1 unit. This is a slope of 3/1 or 3. In y=mx+b form, The equation is f(x)=3x-4 or C.

Please help! I appreciate it :)

Answers

Answer:

Step-by-step explanation:

State the slope and y-intercept of the graph of y = 1/5 x – 7

Answers

Slope: 1/5 y-intercept: -7
Explanation: Slope is y=mx+b; where m is the slope and b is the y-intercept. Even though it’s positive b, it also can be negative (like -7)

ab + a - b
when a = 3, and b = 7

Answers

Answer:

17

Step-by-step explanation:

(3 × 7) + 3 - 7

21 + 3 - 7

24 - 7

17

Answer:

17

Step-by-step explanation:

ab + a - b (sub numbers)

(3)(7) + 3 - 7 (multiply)

21 + 3 - 7 (add/subtract left to right)

17

a/4+2=6 it says to solve the equation​

Answers

Answer:

16

Step-by-step explanation:

a/4+2=6 (subtract 2)

a/4 = 4 (multiply by 4)

a=16

Find the area of the triangle below, express your answer in simplest radical form.

Answers

Answer:

Look below.

Step-by-step explanation:

256√3

128√3

64√3

8√3

Credit: Yelison25 avatar

Please help me! 20 points! You don't have to graph btw!
[Inequalities Review]

Answers

Answer:

7 = n is greater than 9

9=m is less than or equal to 55

Step-by-step explanation:

Answer:

7. −2 < n < 0

8. Not sure about this one

9. m ≤ 55

10. 55 all the way to -40 on the inequalities graph

Lamina in the shape of a square expanding regularly reserving its shape , then the
rate of change of its area with respect to its side length when its side length 5 cm
equals​

Answers

Answer:

بتتحل ب therom 4

هتبقي 10

Emily runs a hotel. She wants to hold a party in the banquet hall of her hotel. The hall has a size of 120,000 square feet. By fire code the maximum population density of the hall is 0.004 people per square foot. This includes all the people in the banquet hall. What is the maximum number of people that can attend the party if she has it in the banquet hall?

Answers

Answer:

480 People.

Step-by-step explanation:

120,000(0.004) = 480

mathematics (please helppp)​

Answers

Step-by-step explanation:

all I know is the answer and it's c

What is the answer for 10r x 20?

I need help with this, and I need the explanation with the answer if possible ^^ ​

Answers

Answer:

200r

Step-by-step explanation:

All you have to do is multiply the 10 and 20 to get 200 and then put the r after the 20, so it would look like this 200r

Select all expressions that are equivalent to 6 + 12x.

A. 3(2 + 4x)

B. 3(2 + 6x) + 6x

C. 5(1 + 2x) + 1 + 2x

D. 7(1 + 2x) – 2x – 1

E. 7(1 + 2x) + 10x – 1

Answers

E. 7(1 + 2x) + 10x – 1

Answer:

A, C, D

Step-by-step explanation:

A: 3×2=6

3×4x=12x

C: 5×1=5+1=6

5×2x=10x+2x=12x

D: 7×1=7-1=6

7×2x=14x-2x=12x

Please help me!! I hate math

Answers

Answer:

6+7= 13

Step-by-step explanation:

you replace a with 7

PLEASE HELO ASAP ITS DUE IN 5 MIN!!!!

Answers

Answer: The second one which is x > 15

An ant crawls 9 feet in 7 minutes. How far can it crawl in 21 minutes and in 28 minutes? Enter your answers. Thank you!

Answers

Answer: 27 and 36

Step-by-step explanation: also a trick on how to master your nines multiplication is bye adding one 10 and subtracting 1 so look at this 9,18,27,36,45,54,63,72,81,90, do you notice the pattern. Hope this helps

Answer:

27 feet in 21 minutes and 36 feet in 28 minutes

Step-by-step explanation:

Hope this helps dude

Se necesita instalar el piso de una habitacion de forma rectangular cuyas dimensiones son 7 m por 8 m el piso se cubrira con baldosas cuadradas de 25 cm de lado,que cuestan 20000 el metro cuadrado. ¿ cual es el costo del material para cubrir el piso?

Answers

Answer:

Costo total= $1.120.000

Step-by-step explanation:

Dada la siguiente información:

Se necesita instalar el piso de una habitacion de forma rectangular cuyas dimensiones son 7 m por 8 m.

Costo por m2=  $20.000

Primero debemos calcular el total de metros cuadrados de la habitación:

Totalm2= 7*8= 56m2

Ahora el costo total:

Costo total= 56*20.000

Costo total= $1.120.000

A file that is 272 megabyte la is being downloaded. If the download is 12.9% complete, how many megabytes have been downloaded? Round your answer to the nearest tenth

Answers

Answer:

35.1 megabytes downloaded (rounded)

Step-by-step explanation:

12.9% = 0.129

272 x 0.129 = 35.088

35.088 rounded to the nearest tenth would be 35.1

(5x – 3)
a
1170
-b
please help

Answers

Answer: x= 114/5

Step-by-step explanation:

Opposite angles in between parallel lines are equal. Just solve for x. (5x-3)=117  

please can someone help me on this!!!!!!!!

Answers

Answer:

Theres No Picture? if you reupload it ill help! :)

Also would ya mine checking out my website it would mean sooo soo much <3

https://myaz-wrld.webnode.com

Answer:

C = 8.8 m

Step-by-step explanation:

Cos(25) = CB/AB = 8m / c, then c = 8m / cos(25) = 8.8 m

If it is helpful, plz give me Brainliest.

square root of 112p^2

Answers

Answer:

4p√7

Step-by-step explanation:

AND THEN ONCE U HAVE THE ANSWER
FIND THE LENGTH OF AC ​

Answers

Answer:

AC=18

Step-by-step explanation:

To find AC, use the Pythagorean Theorem.  Since the longest side (hypotenuse) is known, instead of a²+b²=c², the equation will be c²-a²=b².  12²-8²=b²

144-64=b²

80=b²

√80=√b²

8.94427191=b

That is for one of the two right triangles that make up the tent.  Since there are 2 triangles, 8.94427191 only equals BC or AB.  So, multiply 8.94427191×2=17.88854382 to find the length of AC.

AC= 18

What are the coordinates of the vertex for y= x + 71 – 2

Answers

all i got is (3,8) (2,5) and (2,-6)

6v =792 how I do dat​

Answers

Answer:

v = 132

Step-by-step explanation:

divide 792 by 6 to get v

Answer:

v = 132

Step-by-step explanation:

Just divide the terms by 6 and then simplify.

What is the volume of this sphere to the nearest hundredth?

Answers

the volume of a sphere=4/3pir^3
4/3*pi*5.95^3
882.35cm^3

Find the volume. PLZ HELP MEHH I REALLY NEED THHIS ILL MARK BRANILY

Answers

Answer:

300 + 84 = 384

Step-by-step explanation:

i found the volume of each then added it together

Answer:

guy above me is correct

Step-by-step explanation:

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