Mathematics High School

write tow additions that each have asum of -21.5.

Answers

Answer 1

Answer:

problem 1: -10.75+(-10.75)= -21.5

problem 2: (−5.375)+(−5.375)+(−5.375)

+(−5.375)= -21.5

Step-by-step explanation:

for the first one is just divided -21.5 by two and added the sum with itself.

for the second I divided -21.5 by 4 and added the sum up 4 times to get -21.5 again.

the equations might look a little too complicated but I hope this helped!

Related Questions

3x^2+ 4x + 5 for x = -2

Answers

The answer is 33
3(-2)^2+4(-2)+5
-6^2+ (-8) + 5
36 + (-8) + 5
28+5
33

help me plz guys for 14 point

Answers

I think its true, since perimeter is the diatance around. I would say mines correct, but you could try. I hope that helped atleast a little. :)

Carla and Rob left a 15% tip after having lunch at a restaurant. The amount of the tip was $3. Carla’s lunch cost $12. Write an equation you can use to find x, the cost of Rob’s lunch.

Answers

Answer:

0.15(x + 12) = 3

Step-by-step explanation:

The cost of the lunch before the tip was 12 + x

The tip is 15% of the cost of lunch: 0.15(x + 12)

The tip was $3

0.15(x + 12) = 3

Factor the following expression: x^2+3x

Answers

X(x+3)

I haven’t done this but hope this works

The company plans to have the tanks painted after they are installed. Describe the effect that doubling the diameter has on the amount of paint needed to paint the tanks. What happens when the diameter is increased by a factor of 3?

Answers

Answer:

The effect of doubling the diameter is increased the area to paint as 4 times. So, paint needed is 4 times than it was before. And the area is increased by 9 times when the diameter is increased by a factor of 3. So, paint needed is 9 times than before.

Step-by-step explanation:

Please remember the concept

If side lengths are in the ratio a : b

Then the area are in the ratio of a^2 :b^2

The volume are in the ratio of a^3 :b^3,

When diameter is doubled, the area ratio becomes [tex]x^{2} :(2x)^{2}[/tex] which is simplified to [tex]x^{2} :4x^{2}[/tex]

So, the area is increased by 4 times.

According to this concept , the diameter is increased by the scale factor 3.

Let the diameter of tank is 'x', so the diameter becomes "3x"

So, it's area ratio would be [tex]x^{2} :(3x)^{2}[/tex]

If we simplify it we get [tex]x^{2} :9x^{2}[/tex]

We conclude that area to be increased by 9 times.

yoo plz help with these 2 questions

using algebra to solve for missing in a formula

Answers

Answer:radius is 6,height is 4

Step-by-step explanation:

Find the measure of angle A.
Please help??

Answers

Answer:

Step-by-step explanation:

Answer:

Creo que es 40

Step-by-step explanation:

80+15x+(11x-4)=180

26x=104

x=4

Entonces

11x-4 --> 11*4-4 = 40

Find the equation in slope-intercept form that describes each line.

a line with slope –2 and y-intercept 4
A. y = –2x
B. y = 2x – 4
C. y = –2x + 4
D. y = 4x – 2

Answers

Answer: The answer is c- y=-2x+4

Explanation:

A circle is graphed on a coordinate grid. Its center is at (3, 4), and the circle passes through point (3, 1). What is the approximate area, in square units, of the circle? (Use 3.14 for π.)

Answers

Answer:

it is either 18.84 or 31.40

Step-by-step explanation:

just do it in your head

The area of the circle is 28.26 square units

The center of the circle is given as:

[tex](a,b) = (3,4)[/tex]

The circle passes through the following point

[tex](x,y) = (3,1)[/tex]

Start by calculating the radius using the following distance formula

[tex]r = \sqrt{(x -a)^2 + (y - b)^2}[/tex]

So, we have:

[tex]r = \sqrt{(3 -3)^2 + (4 - 1)^2}[/tex]

[tex]r = \sqrt{9}[/tex]

Square both sides

[tex]r^2 = 9[/tex]

The area of the circle is then calculated as:

[tex]Area = \pi r^2[/tex]

So, we have:

[tex]Area = 3.14 \times 9[/tex]

[tex]Area = 28.26[/tex]

Hence, the area of the circle is 28.26 square units

Answers

Answer:

<L+<M+<N=180

<NLM and <XLN are supplementary meaning their angle measure add to 180.

therefore,44+46+L=180

90+L=180

l=90

If l=90 then the <NLX is also 90 since they are supplementary angles

therefore, 3x+42=90

3x=48

x=16

Step-by-step explanation:

a college spends 40% of an individual's tuition on salaries and the remainder on other costs if they spend 1,800 on other costs how much is an individual's tuition?

Answers

Answer:

$3000

Step-by-step explanation:

If the remainder is spent on other costs, then that means 60% of the tuition as spent on other costs.

To find the total tuition, divide 1800 by 0.6:

1800/0.6

= 3000

So, their tuition was $3000

1. What do you need to show in order to prove that a number is divisible by 3?
Then, use an example to show your explanation is correct. *

Answers

Answer:

You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal

Step-by-step explanation:

1.
Mark translated trapezoid A B C D to trapezoid A prime B prime C prime D prime Vertex B was at (4, 3) . If B prime is now at (-2, 2) , what did he have to do to get there?
move 6 units left and 1 down

move 2 units down and 1 left

move 6 units down and 1 up

move 5 units right and 6 left

Answers

move 2 units down and 1 left

through: (-3, -4) and (2, 1)

Answers

Answer:

y = 1x - 1

Step-by-step explanation:

[tex]\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1[/tex]

can someone help me please?

Answers

Answer:

(0,4) and (-4,0)

Step-by-step explanation:

Write a function for the following table
X. Y
-1. -4
0. -2
1. -1
2. -0.5
Please help I only have 20 minutes

Answers

Answer: x+1 = y/2

Step-by-step explanation:

X is increasing by 1

(Adding 1 to each number)

For Y, divide it by 2

-4/2 = -2

-2/2 = -1, etc.

Which input value produces the same output value for
the two functions?
O x= -12
O x= -9
O x= -6
O X=-3
HELP PLEASE

Answers

Answer

-6

Step-by-step explanation:

Took test

3. Use the distributive property to express 64 + 24. *

Answers

Answer: 8(8+3)

Step-by-step explanation:

64 + 24 is the same as 8*8 + 8*3. Therefore you can "pull out" the 8 and that is your answer

If a factory can produce 25,000 gears in 1 day, how many gears will it produce in 3 days?

Answers

Answer:

75,000 gears

Step-by-step explanation:

Evaluate: 461 ÷ 10 to the third power

Answers

Answer:

461 divided by 10^3 is 0.461.

Step-by-step explanation:

Hope this helps and I hope u have an Amazing day!!

Prove that the square root of 8+ the Square root of 2 = 3 • 2 1/2

Answers

Answer: [tex] \sqrt{8} = \sqrt{4 \times 2} [/tex][tex]2 \sqrt{2 } + \sqrt{2} [/tex][tex]2 \sqrt{2} + 1 \sqrt{2} [/tex][tex]3 \sqrt{2} = 3 \times 2 {}^{ \frac{1}{2} } [/tex]

Please help due in 9 minutes

Answers

Answer:

the ans is 5 I think only

♦Will mark brainliest♦
A zoologist is recording the loss of wolves in her state. She notes the number of wolves, w, in the state on January 1. One year later, there were 84 wolves in the state, which is 23 fewer wolves than were in the state a year earlier. What is the number of wolves in the state on January 1? Which equation can be used to find the number of wolves in the state on January 1?

w−84=−23

w + 23 = 84

w−23=84

23−w=84

For those who know this answer and did not get to copy the link below and paste it into search bar thanks have a wonderful day

https://brainly.com/question/20143416

Answers

Answer:

Step-by-step explanation:

The wolves from the previous year minus 23 is 84.

(24 = 3) + 3 + 33
Your answer

Answers

33+3 is 36
36+(3=24)
39=24

They don’t equal each other

No solutions

I NEED HELP PLS!! i am so confused on what to do if you can explain that would be awesome!

Answers

Answer:I am pretty sure that it is that you add 26 and 71 and then subtract it by 180 and then the other one is across so it would be the same answer so it would be 83

Step-by-step explanation: I hope this helped

Use the coordinate grid to determine the coordinates of point P:
What are the coordinates of point P?

Answers

Answer:

The coordinates are (1.4, -0.8)

Please help for the whole section i really need this answer am failing my math class

Answers

1, 4/2; 2, -5/4; 3, 7/5; 4, -7/4; 5, 3/5; 6, -2/8; 7, 6/2; 8, -2/4; 9, 1/6

Identify the angle pair from the diagram above: <2 and <7

Answers

Answer:

2 and 7 are alternate exterior angles

Step-by-step explanation:

Alternate exterior angles are angles that are on different sides of the transversal and on the outside of the parallel lines. There is a theorem that says that alternate exterior angles are congruent if two parallel lines are cut by a transversal.

What point is on both lines y=12x+3 and y=x+1

(no graph)

Answers

Step-by-step explanation:

by having two equations that have the same point, you can set the two equations equal to each other

y = 12x + 3, y = x + 1

12x + 3 = x + 1

11x = -2

x = -2/11

when you find the the x value, plug it back into either one of the equations

y = x + 1

y = (-2/11) + 1

y = 11/11 - 2/11

y = 9/11

the point (solution):

(-2/11, 9/11)

Answer:

(-2|11, 9|11)

Step-by-step explanation:

hope it helps

Jamar spent $5.60 on 5 bags of Doritos The neighborhood store. how much did each bag of chips cost?

Answers

Answer:

5!60

Step-by-step explanation:

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Hunt ye dzkpksnsnjfnngfhnf l dk h TL hhsinp

Other Questions

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