Mathematics High School

Help!!! It’s due tomorrow

Answers

Answer 1

Answer:

A and B

Step-by-step explanation:

Because they have a combined total of 30 years old so that eliminates C and D.

And for the ones that ask how old they are you could put their both 15.

Related Questions

Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9

Answers

Answer:

Step-by-step explanation:

x^2 - 20

x = 7 and 9

Evaluate

___________

We know the values of x, let's substitute them with the x in the problem :

(7)^2 - 20

49 - 20

(9)^2 - 20

81 - 20

HELP ME PLEASE!!!!! IM DYING WITH ALL THIS MATH HW

Answers

3x=129 , x =43 distribute 3 to get x by itself

Nxjdkdnc knockzjznsbdbxbzmzmmd xbxidnrnfu. Xizneshzudnd check x

Change the negative exponent
to a positive exponent

Answers

I hope this picture helps.

A bag contains red and green marbles of equal size. There are more red marbles than green marbles in the bag. A marble is chosen from the bag without looking. Which point could represent the probability that a red marble is chosen? A B C D E

Answers

A because it is the best method for studying for exams and exams in the or so that is not working as well in the form for the test to get a

Juan made 3 identical necklaces each having beads and a pendent the total cost of the beads and pendent for all 3 necklaces was $19.20. If the beads cost $2.80 for each necklace, how much did each pendant cost?

Help I gave 30 points

Answers

Answer:

Step-by-step explanation:

2.80 x 3 = 8.40 so 19.20-8.40=10.8 then 10.80/3= 3.60

Find the missing side Lengths.

Answers

Answer:

5.23606798

Step-by-step explanation:

PLEASE HELP ITS DUE TODAY!

Answers

Step-by-step explanation:

a = 5.5 + 2.01 = 7.51

b = 5.5 - 2.01 = 3.49

c = 13.71 /10 = 1.371

d = 13.71 / 100 = 0.1371

Hope it will help :)

Answer:

7.51, 3.49, 1.371, 0.1371

What is 75 times 4 does anyone know if they do I need a asnwer asap Please and Thank you

Answers

Answer:

75 x 4 = 300

Step-by-step explanation:

Ummmm multiplication

The answer to your question is 300

I need help with geometry on finding the area of the triangle or trapezoid with these three problems

Answers

Answer:

o7ddp7dp77s7ssdtldl9sp5as 8y6f9d8tzl4zl5zp6so68sp68o5s884aa4455665655666b is 45678900 is answer

- 2x + 7y< -14
4x+3y> -12

Answers

Answer:

Given inequalities:

- 2x + 7y < -14 4x + 3y > -12

Solution is attached

The first inequality is zone AThe second inequality is zone BIntersection of two zones is the solution: zone AB

what is the equation of the line that passes through the point(4,12) and has a y-intercept of -2?

Answers

Answer:

y=3.5x-2

Step-by-step explanation:

y=mx+c

12=m×4-2

add 2 on both sides

14=m×4

divide by 4 on both sides

3.5=m

y=3.5x-2

which is greater 21.798 or 217.98?

Answers

Answer:

217.98 is greater.

Step-by-step explanation:

Think about this way. Which is the larger number, 217 or 21? 217, of course. The decimal point only adds a small fraction of a number to the whole, so it doesn't affect the value that much.

Solve system by elimination

9x + 3y = 24
10x - 2y = 0

Answers

Answer:

(1, 5 )

Step-by-step explanation:

Given the 2 equations

9x + 3y = 24 → (1)

10x - 2y = 0 → (2)

Multiplying (1) by 2 and (2) by 3 and adding the result will eliminate the y- term

18x + 6y = 48 → (3)

30x - 6y = 0 → (4)

Add (3) and (4) term by term to eliminate y

48x + 0 = 48

48x = 48 ( divide both sides by 48 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (1)

9(1) + 3y = 24

9 + 3y = 24 ( subtract 9 from both sides )

3y = 15 ( divide both sides by 3 )

y = 5

solution is (1, 5 )

A car that was originally worth $29.500 depreciates at a rate of $2,500 per year. Find the
value of the car after six years.

Answers

Answer:

14500

Step-by-step explanation:

Sully has a loan which he repays every month. If the loan amount includes interest, his loan amount due, in dollars, after t years, is shown by the following expression.

7,000(0.90)^12t

Which statement below best describes the coefficient, 7,000?

A. The number of times sully repaid the loan since he began making payments
B. Sully’s initial loan amount
C. The decrease in Sully’s loan amount every month
D. The rate at which Sully repays the loan

Answers

i would say its B. The initial loan amount

Answer:

Sully's initial loan amount

edit: i accidently rated my answer as 1 star but i promise its right

help me what should i put! i’ll give brainliest

Answers

the dependent variable will stay the same throughout the experiment. it is “dependable” while the independent variable can change. you could change the amount of something and that would be the independent variable. hope this helps!!

sally has 300 tangerines and and and 3%are Wayne's what percent does Sally have

Answers

Answer:

The answer is 97%

Step-by-step explanation:

To answer this problem you need to take the 300 tangerines, it in all that is the 100% so, now you need to take away the 3%, you are left with 97% (I hope i'm correct, sorry if i'm not)

I Calculate each value of angle A to the nearest degree.

Answers

Answer: I think the answer is 127 if it is wrong i am so sorry

Don't forget drop a heart.

Step-by-step explanation:

Answer:

i think 127

Step-by-step explanation:

sorry if its wrong

What is 45 to the 3rd power?

Answers

45^3 is 45 times 45 times 45. The answer is 91 125.

Answer:

45³ = 91,125

Step-by-step explanation:

45 to the 3rd power = 45 cubed

= 45³

= 45 x 45 x 45

= 2025 x 45

= 91,125

FREE BRAINLiest IF YOU ANSWER CORRECTLY!!(jwo26)

Answers

Answer:

what is the question? u do not say

Answer:

Whats the question?

Step-by-step explanation:

Find the inverse of each function:
g(x)=[tex]\frac{-5x+5}{2}[/tex]
A. g^{-1}[/tex](x)=[tex]\frac{5-2x}{5}[/tex]
B. g^{-1}[/tex](x)=[tex]4+\frac{4}{3}x[/tex]
C. g^{-1}[/tex](x)=[tex]\frac{10-x}{2}[/tex]
D. g^{-1}[/tex](x)=[tex]-4+\frac{1}{3}x[/tex]

Answers

Answer:

Step-by-step explanation:

Replace g(x) with y, then switch the x and y variables:

[tex]x=\frac{-5y+5}{2}[/tex]

Solve for the new y value, multiply by 2:

[tex]2x=-5y+5[/tex]

Subtract 5 on both sides:

[tex]2x-5=-5y[/tex]

Divide by -5 on both sides:

[tex]-\frac{2x-5}{5} =y[/tex]

Distribute the negative sign and rearrange:

[tex]\frac{-2x+5}{5} =\frac{5-2x}{5} =g^-^1(x)[/tex]

Answer:

A. g⁻¹(x) = (5 - 2x)/5

Step-by-step explanation:

Given functiong(x) = (-5x + 5)/2Find the inverse of g(x)Solution

Substitute x with y and g(x) with x and then solve for y:

x = (-5y + 5) /22x = -5y + 55y = -2x + 5y = (-2x + 5)/5y = (5 - 2x)/5

Replace y with g⁻¹(x)

g⁻¹(x) = (5 - 2x)/5

Correct choice is A

Hire charges for a mini bus consist of Ex fixed charge + y pence for each mile of the journey A hire for 20 miles costs £25 A hire for 30 miles costs £30. How much would a hire for 50 miles cost?

Answers

Answer:

the cost of hiring 50 miles is £55

Step-by-step explanation:

The computation of cost for hiring 50 miles is shown below:

= 20 miles cost + 30 miles cost

= £25 + £30

= £55

Hence, the cost of hiring 50 miles is £55

The same would be considered and relevant too

Which of the following expressions give the distance between the endpoints of the segment shown on the number line below? Select all that apply

Questions:
A)|−35−(−45)|
B)|−35−45|
C)−35−45
D)|35−45|
E)|45−(−35)|

Answers

Ans

3.21343253

Step-by-step explanation:

Can someone pls helppp

Answers

Answer:

Step-by-step explanation:

for the triangle it is 9.5x+1.5 and for the square, the simplified expression is 4.8x+2

Solve the equation -10(d + 1) = -14.
d=
?

Answers

Answer:

d = 0.4

Step-by-step explanation:

Given

- 10(d + 1) = - 14 (divide both sides by - 10 )

d + 1 = 1.4 ( subtract 1 from both sides )

d = 0.4

if the original quantity is 12 and the new quantity is 15, what is the percentage increase

Answers

Answer:

25%

Step-by-step explanation:

Given data

original quantity =12

new quantity =15

% increase= new-original/original *100

% increase= 15-12/12 *100

% increase= 3/12 *100

% increase=0.25 *100

% increase=25%

hence the increase is 25%

simplify 2 - 10 (-6v - 6)

Answers

Step-by-step explanation:

60v+62

2-10(-6v-6) Distribute the 10

2+60v+60 Add the non variables

60v + 62

What is the difference between largest and smallest fraction below?

1/5 7/20 3/10

Answers

answer: 3
because 1/5 is equal to 4/20 and 3/10 is equal to 6/20 so the largest fraction is 7/20. difference between 7 and 4 is 3.
idek if that's correct

is this correct?
if not does anybody know which one it is

Answers

You are right thank me later lol

Answer:

hey, i just did this question and double checked everything and i got a different answer.

So C, =x^2−25 should be the correct one

Step-by-step explanation:

good luck on the test

which is the graph of the linear equation Y is greater than or equal to negative X -3

Answers

Answer:

yea

Step-by-step explanation:

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