Mathematics High School

Someone help and please make sure the answer is right :)

Answers

Answer 1

The answer would be -6

Answer 2

Answer:

Step-by-step explanation:

their alternate exterior angles so they are equal

9x + 12 = 120

9x = 108

x = 12

Related Questions

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

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

An item has an original price of $45, it is discounted 25%. What is the new price?

Answers

25% off $45 is $33.75

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!

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

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

The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at the rate of 20m/min

Answers

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal can be obtained by

[tex]diagonal = \sqrt{l^2 +b^2}[/tex]

[tex]diagonal = \sqrt{6^2+ 7^2} = 9.22m[/tex]

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

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

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.

3/4 (12x+8)=-13- (2x+3)

Answers

Answer: = − 2

Step-by-step explanation:

Remove parentheses.

3/4 (12x+8)=−13−2x−3

Simplify 3/4(12x+8) to 3(12x+8)/4.
3(12x+8)/4=-13-2x-3

Factor out the common term 4.
3x4(3x+2)/4=-13-2x-3

Simplify 3×4(3x+2) to 12(3x+2).
12(3x+2)/4=-13-2x-3

Simplify 12(3x+2)/4 to 3(3x+2)
3(3x+2)=−13−2x−3

Simplify −13−2x−3 to −2x−16
3(3x+2)=−2x−16

Expand
9x+6=−2x−16

Add 2x to both sides.
9x+6+2x=−16

Simplify 9x+6+2x to 11x+6.
11x+6=−16

Subtract 6 from both sides.
11x=−16−6

Simplify −16−6 to −22
11x=−22

Divide both sides by 11.
x=− 22/11

Simplify 22/11 to 2.
x=−2

Please Solve so i can complete!!!!!!!! Quick Fasts

Answers

I tried but couldn’t figure out sorry.

please help :) it's not to hard

Answers

Answer:

Step-by-step explanation:

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:

‼️‼️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!

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! (:

HELP PLZ IM STUCK.
Find the equation of the line.
Use exact numbers.
y =
x+

Answers

Y=x-5
The -5 is the y intercept on the graph

Answer: y = x - 5 ( just add a negative at the end )

Step-by-step explanation:

( 5,0) ( 0,-5)

0 - -5

5 - 0

5/5 = 1

y = x + b

0 = 5 + b

-5 -5

-5 = b

y = X - 5

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.

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]

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

please help 10 points

Answers

Answer:

Sana di ten points

Step-by-step explanation:

#carryonlearning

The answer would be B

a) What is the name of the line marked a?
b) What is the name of the line marked b?
c) What is the name of the line marked c?
d) What is the name of the line marked d?

Answers

a = tangent
b = radius
c = diameter
d = chord

Answer:

Step-by-step explanation:

raduis and diameter.

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!

4x = 44

PLease help UNDEN

Answers

Answer:

x= 11

Step-by-step explanation:

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.

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

Can anyone help me with this please

Answers

A is the final answer to your question

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:

Plssss help meee I need help

Answers

Answer:

Step-by-step explanation:

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

2000:$5.00 2015:6.50 what is the change in the cost of the cheeseburger

Answers

Change means “difference in price”. Difference means subtraction.....so:
New price - old price = difference
6.50 - 5.00 = 1.50

If you want per year, there were 5 years between prices so divide by 5:
1.50/5 = 0.30 per year. So 30 cents every year or $1.50 overall

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:

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