Mathematics High School

how do you do this? its a 5 mark question

Answers

Answer 1

You multiply both the sides and the top and add them

Answer 2

Answer:

336

Step-by-step explanation:

12*28

Related Questions

GOOD AT MATH!! PLEASE HELPPP

Answers

Answer:

D, roughly 9.4 units

Step-by-step explanation:

you can make the graph into a right triangle

with sides of [tex]x, 5,[/tex] and [tex]8[/tex]

[tex]A^{2} +B^{2} =C^{2}[/tex]

[tex]5^{2} +8^{2} =x^{2}[/tex]

[tex]25+64=x^{2}[/tex]

[tex]89=x^{2}[/tex]

[tex]\sqrt{89} = 9.43[/tex]

A 7-meter roll of white paper costs $1.65. What is the unit price, rounded to the nearest cent?

Answers

Answer:

$0.24 per meter

Step-by-step explanation:

Alright so to find the unit rate divide 1.65 by 7

1.65/7=0.2357142857142857...

So round it to the nearest cent

0.24

simplify. 5x^2+4x-17-9x-6

Answers

.......................................................

5x^2-5x-23 is the answer

Combine like terms to get your answer

evaluate -8y+x5 when x =2 and y= -3

Answers

Answer:

Step-by-step explanation:

Answer:

-24+-10 = -34

Explanation:

Any time when the letter and number together and says what is letter equal you must multiply!

For example: a=5

There is a equation and it says what is: 4a
It is the same thing as multiply so what you do is 4x5 since a is equal to 5 then boom, it’s that easy you’re answer is 20.

I just wrote this if you didn’t understand much about this topic, and I hope I helped! Enjoy! (:

Solve this proportion.
9/n=7/5

Answers

Answer:

n = 6 3/7 or 45/7

Step-by-step explanation:

cross-multiply

7n = 45

n = 45/7 or 6 3/7

Answer:

45/7

Step-by-step explanation:

9 x 5 = n x 7

45 =n x 7

Switch sides n x 7=45

Divide both sides by 7: n x 7/7 = 45/7

n = 45/7

Which set of ordered pairs represents a function?
O {(1, -2), (2, 4), (2,7), (-4, – 7)}
O {(-5,4),(-1,7),(-1,-6), (6, -9)}
O {(-1,-2), (9,8),(-1,-6), (4,1)}
O {(0,4), (7,0), (2,3), (5,0)}

Answers

Answer:

D. {(0,4), (7,0), (2,3), (5,0)}

Step-by-step explanation:

A function doesn't have any repeating domains (x-coordinates). Option D is the only one that meets this requirement.

Hope it helps!

Plssss help meee I need help

Answers

Answer:

Step-by-step explanation:

[tex]29^{2} \neq 20^{2} + 26^{2}[/tex]

Identify the missing term of the sequence
1,8, 27, a4, 125, 216, ...
54
64
76
88

Answers

Answer:

Step-by-step explanation:

4³ = 64

What is the cost of paving the path with bricks at rate of Rs.100 per m². When area of land is 63 m s

Answers

Answer:

Rs. 6300

Step-by-step explanation:

Given that:

Land area = 63m²

Rate of paving brick = RS. 100 per m²

Hence, to pave bring on a 63m² land area ;

Total cost of paving brick will be :

Cost per m² * land area

Rs. 100 * 63

= Rs. 6300

Rearrange to make subject x 4(x-3)/a=y

Answers

Answer:

answer is x = ay + 12/4

Step-by-step explanation:

first we cross multiply on both sides which will give us this

4( x -3)=ay

we then open the brackets by multiplying 4 with x and -3 which gives

4x - 12= ay

then take 12 to the other side

4x - 12+12= ay + 12

4x = ay + 12

divide 4 on both sides

4x /4= ay + 12/ 4

therefore x = ay + 12/ 4

clear steps in picture

hope that can help

4x = 44

PLease help UNDEN

Answers

Answer:

x= 11

Step-by-step explanation:

question. 2. 8 is what percent of 5?

Answers

Answer:

Step-by-step explanation:

Solution for 2.8 is what percent of 5:

2.8:5*100 =

(2.8*100):5 =

280:5 = 56

Answer: 160%

Step-by-step explanation:

Find the slope and the y-intercept of the line y=4x+6

Answers

Answer:

Slope: 4

Y-intercept: 6

Step-by-step explanation:

The equation is given to you in slope intercept form which is y=mx+b.

In this form m is the slope and b is the Y-intercept. Therefore all you have to do is take the value for m from the equation and put that down for the slope and the value for b as the y-intercept.

Gabriel is at the grocery store, and wants to figure out his total cost before he gets to the register. He bought 2.5 pounds of apples that are x dollars a pound and 2 bags of lettuce for y dollars each. Gabriel remembers he has a coupon for $2 off his bill.

Gabriel has $30 to pay for the groceries. What simplified expression would represent the amount of change he should receive

Answers

Answer:

32 - 2.5x - 2y

Step-by-step explanation:

He bought 2.5 pounds weight of apples for x dollars a pound. Thus, cost is 2.5x.

He bought 2 bags of lettuce for y dollars each. Thus, cost is 2y

Total bill cost = 2.5x + 2y

We are told he has a coupon for $2 off his bill.

This means the amount he will pay will now be;

2.5x + 2y - 2

Gabriel has $30 to pay for the groceries.

Thus, his change will be;

30 - (2.5x + 2y - 2)

This gives;

32 - 2.5x - 2y

Answer:

Step-by-step explanation:

Find the y-intercept and the slope of the line.
5x+4y=-3
Write your answers in simplest form.
y-intercept:

Slope:

No choices solve on own

Answers

Answer:

y - intercept: 3/4

slope: -5/4

Step-by-step explanation:

put into slope-intercept form first, y = -5/4x + 3/4

then you can see that the slope and y - intercept are -5/4 and 3/4

Answer:

The answer for the y-intercept is (0, -3/4). The answer for the slope is -5/4.

Step-by-step explanation:

You know this because you must pull the 4 out of the equation, along with the y, so it is -4y=5x+3. You would put both of these numbers over 4: (5 and 3). A positive number which is 5, divided by a negative gives you negative so you can just say -5/4. Same with +3/-4. You can change it to -3/4, because positive over negative equals negative answer.

850 liters of walcr was shared cqually among 5 aquariums.
Ilow many liters of water does each aquarium have?

Answers

Each aquarium has 170 liters of water in it.

Step-by-step explanation:

To get this, you need to divided 850 by 5 to get the amount of water in each tank to make sure that it is all equally distributed. This way we now know that each tank needs 170 liters of water to have an equal amount of water in each tank

Move words to the blanks and equations to the boxes to prove that vertical angles 21 and 23 are congruent.

Because linear pairs of angles are

and

Because angles that are

to the same angle are

it can be concluded that 21 23.

congruent

m21 +m22 = 180°

supplementary

m22 + m23 = 180°

m2l + m23 = 180°

Answers

Answer:

Because linear pairs of angles are supplementary. m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°.

Because angles that are supplementary to the same angle are congruent. It can be concluded that ∠1 ≅ ∠3.

Step-by-step explanation:

The correct question is attached.

Linear pairs angles are angles which are formed from the intersection of two lines and they are adjacent to each other. Linear pair angles are supplementary.

If angles are supplementary to the same angle, then they are congruent.

∠1 and ∠3 are vertical angles

∠1 and ∠2 form linear pairs while ∠2 and ∠3 form linear pairs. Therefore:

m∠1 + m∠2 = 180° (linear pair angles are supplementary)

m∠2 + m∠3 = 180° (linear pair angles are supplementary)

Hence using transitive property of equality:

m∠1 + m∠2 = m∠2 + m∠3

Using subtraction property of equality by subtracting m∠2 from both sides gives:

m∠1 = m∠3

∠1 ≅ ∠3 (vertical angles are congruent)

Because linear pairs of angles are supplementary. m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°.

Because angles that are supplementary to the same angle are congruent. It can be concluded that ∠1 ≅ ∠3.

Raphael deposited $6,500 in an account that pays 4.25% interest, compounded annually. He left the money in the account for 4 years, without depositing money to it or withdrawing money from it.

At the end of the 4 years, how much interest in dollars and cents did the account earn?

Answers

Answer:

$1105

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 4.25%/100 = 0.0425 per year,

then, solving our equation

I = 6500 × 0.0425 × 4 = 1105

I = $ 1,105.00

The simple interest accumulated

on a principal of $ 6,500.00

at a rate of 4.25% per year

for 4 years is $ 1,105.00.

Which expression is equivalent to (9x5y16/45x5y4)?

Answers

Answer:

the expression equal to this is 20 X /25 is the answer for the expression is 4 x/ 5

Step-by-step explanation:

Hello,

The answer is the first one - y^12/5

What is the function of the line?

Answers

Y= -1/2x + 2
It’s this because if you see the y intercept 0,2 and it has a negative slope so it would be a negative m, then from the y intercept you can go down one and to the right two to find the answer!

please help 10 points

Answers

Answer:

Sana di ten points

Step-by-step explanation:

#carryonlearning

The answer would be B

Can some one plz help me.
#13 and 14

Answers

Answer:

For number 13 you should get 14 is the width just divide what you got from multiplying the length and the other side. 2 and 95 could be possible answers of number 14.

Answer:

13. Width is 14 inches.

14. 5 and 38

Step-by-step explanation:

Volume (rectangular prism) = length*width*height

1428=17*w*6

w=1428/102

w=14 inches

Base area=length*width

∴Volume (rectangular prism) = Base area*height

190=Base area*height

Pick two numbers that multiply to give 190: 5 and 38.

please help :) it's not to hard

Answers

Answer:

Step-by-step explanation:

a school hall measures 10m long,7m wide and 4m high.All it's insideswalls and ceiling are painted ,
calculate the total surface area

Answers

Answer:

304 m²

Step-by-step explanation:

l = 10 m

b = 7 m

h = 4 m

TSA = 2 (lb + bh + hl)

= 2 (10 * 7 + 7 * 4 + 4 * 10)

= 2 (70 + 42 + 40)

= 2 * 152

= 304 m²

Hope it helps :)

Please mark my answer as the brainliest

Helppp plz I will mark brainliestttt

Answers

Answer:

Step-by-step explanation:

To get from (16,12) to (12,9) you would multiply both 16 and 12 by 3/4 to get 12 and 9.

‼️‼️Pls help. Will give brainliest. 20 points‼️‼️

The solutions are:
A) Infinite Solutions
B) No Solutions
C) x > -9
D) x < 8/3

Answers

Answer:

here!

Step-by-step explanation:

6x +4 < 3x +12

D) x < 8/3

5x - 9 < 7x +9

C) x > -9

3x + 2x + 9< 5x +12

B) no solutions

2 (4x-4) > 8(x+2)

A) infinite solutions

hope this helps and if it does please like and rate and give me the brainliest if possible!

awesome have a great day thanks!

please help this is late and i need to do it now

Answers

Answer:

AB is similar to YZ.

AC is similar to YX.

CB is similar to XZ.

Step-by-step explanation:

Which choice below lists all of the square roots of the number 15?
C. V15
A. 3,5
D. V15,-VIS
B. 15,-15
E. 5,-5

Answers

Answer:

A is your answer

Step-by-step explanation:

29,30,32,35,39,\ Which is the next number in this pattern?
A) 42
B) 43
C) 44
D) 45
E) 46

Answers

Answer:

Step-by-step explanation:

It is a pattern of adding numbers like the first one is 29 add 1 = 30 add 2 = 32

Add 3 = 35 add 35 + 4 = 39 add 5 = 44

Option C 44 is the correct answer

Multiply.

−2x(6x4−7x2+x−5)

Express the answer in standard form.

Enter your answer in the box.

Answers

Answer:

-2x(6x⁴ - 7x² + x - 5)

= -12x⁵ + 14x³ - 2x² + 10x

Answer:

See screenshot

Step-by-step explanation:

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how do you do this? its a 5 mark question​

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how do you do this? its a 5 mark question