Mathematics High School

-3x + 5 ¾ + 12x - 2.25
if you answer this it is worth 100 points

Answers

Answer 1

Answer: 9 x + 7 /2

Step-by-step explanation:

Answer 2

Answer:

 8 + 9x

Step-by-step explanation:

This is an algebraic expression.  Our job here is to simplify it by combining like terms:  combine the x terms and then combine the constants:

-3x + 5 ¾ + 12x - 2.25, after combining the x terms, is

       5 ¾ +    9x - 2.25

Next, combine the constants.  It's easier to convert -2.25 to -2 1/4 and then

add this 2 1/4 to 5 3/4:  

             8 + 9x

Related Questions

Lola measures the heights and arm spans of the girls on her basketball team.
She plots the data and makes a scatterplot comparing heights and arm
spans, in inches. Lola finds that the trend line that best fits her results has the
equation y = x + 2. If a girl on her team is 65 inches tall, what should Lola
expect her arm span to be?
72
70
68
Arm span (inches)
66
62
60
Troo
60 62 64 66 68 70 72
Height (inches)
O A. y = 65 - 2 = 63 inches
O B. y= 65+ 2 = 67 inches
C. y = 65 inches
D. 65 = x + 2
X = 63 inches

Answers

Answer: 65 = x + 2

x = 63 inches

Step-by-step explanation:

Answer: 67

Step-by-step explanation: a p e x

7. If each pet had received 9 votes, what would the mode have been?

Answers

Answer

Step-by-step explanation:

if they all recieve the same amount of numbers then there is no visable mode because they all recieve the same numbers

also dont go to the link that the other person just posted its a scam

cuál es el perímetro de un círculo de diámetro de 13 centímetros​

Answers

Answer: 132.665 hope it's right but I think it's right but i don't know

Step-by-step explanation:

the base of a jewelry box is a square with a side length of 5 1/2 inches. the box is 2 inches high. what is the volume of the box?

Answers

The volume of the jewelry box is 60 1/2 cubic inches.

The area of a square with a side length of 5 1/2 inches can be found by multiplying the length of one side by itself, giving:

Area = (5 1/2) × (5 1/2) = 30 1/4 square inches

The height of the box is 2 inches.

Therefore, the volume of the jewelry box can be found by multiplying the area of the base by the height of the box, giving:

Volume = Area x Height = (30 1/4) × 2 = 60 1/2 cubic inches

Thus, the volume of the jewelry box is 60 1/2 cubic inches.

Learn more about the volume here:

https://brainly.com/question/9465338

#SPJ1

Given: EL≅KP Prove: KE≅LP

Answers

Answer:

See Below.

Step-by-step explanation:

We are given that:

[tex]EL\cong KP[/tex]

And we want to prove that:

[tex]KE\cong LP[/tex]

Congruent chords have congruent arcs. Therefore:

[tex]\stackrel{\frown}{EL}\, \cong \, \stackrel{\frown}{KP}[/tex]

Arc EL is the sum of Arcs LP and PE:

[tex]\stackrel{\frown}{EL}\,=\, \stackrel{\frown}{LP}+\stackrel{\frown}{PE}[/tex]

Likewise, Arc KP is the sum of Arcs KE and PE:

[tex]\stackrel{\frown}{KP}\, =\, \stackrel{\frown}{KE}+\stackrel{\frown}{PE}[/tex]

Since Arcs EL and KP are congruent:

[tex]\stackrel{\frown}{LP}+\stackrel{\frown}{PE}\, =\, \stackrel{\frown}{KE}+\stackrel{\frown}{PE}[/tex]

Subtraction Property of Equality:

[tex]\stackrel{\frown}{LP} \, \cong\, \stackrel{\frown}{KE}[/tex]

Congruent arcs have congruent chords. Therefore:

[tex]LP\cong KE[/tex]

How many seconds are in an hour? is this a statistical question or non-statistical question.

Answers

Answer:

There are 3600 seconds in an hour.

non-statistical

Step-by-step explanation:

Their is 60 minutes in a hour. 1 minute is equally to 60 seconds.

60 * 60 = 3600

Everyone will say the same answer so it is non statistical.

Hope this helps!

Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.

Answers

-x^2

Hope it helps!!!!!!

Tell whether xy = 8 shows direct variation, inverse variation, or neither.

Answers

Answer:

inverse

Step-by-step explanation:

y = k/x indicates inverse variation, which is the same as xy = k

in this particular problem, k = 8

The table below shows some values of x=y-4 for values of x from -2 to 8

What is A, B and C please

Answers

Answer:

everything you need to know can be found in the picture

Tome walks 1/3 of a mile in 1/4 of an hour. At this rate, how many miles will Tom walk in 1 hour?

Answers

Answer:

2 miles i think

Answer:

In 1 hour, he'll walk 4/3 miles

Step-by-step explanation:

Ratios:

[tex]\frac{1/3}{1/4} =\frac{x}{1} \\\\\frac{1}{4} x=\frac{1}{3} \\\\x=\frac{4}{3}[/tex]

Instructions: Given the vertex of a quadratic function, find the axis of symmetry.
(-1,3)

Answers

The answer is A because of the bar graph

Two similar solids have surface areas of 48cm and 108cm respectively.find the volume of the smaller solid if the bigger one has a volume of 162cm​

Answers

Answer:

The volume of the smaller solid is 72 cm.

Step-by-step explanation:

Given that two similar solids have surface areas of 48cm and 108cm respectively, to find the volume of the smaller solid if the bigger one has a volume of 162cm the following calculation must be performed:

108 = 162

48 = X

48 x 162/108 = X

7776/108 = X

72 = X

Therefore, the volume of the smaller solid is 72 cm.

Plsss help me on this

Answers

Answer:

Pretty sure it is Product of Powers Property

Step-by-step explanation:

is y=1/4x+1/3 proportional or non proportional

Answers

Answer:

non proportional

Step-by-step explanation:

Find the radius of each circle using 3.14
or 22/7 for pi. Round to the nearest tenth if
necessary.
Circumference=12.6 yd

Answers

Answer: 2.01

Step-by-step explanation: Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.

Divide the diameter by 2.

Use the distributive property to expand (simplify): 4(x + 7)​

Answers

this is the simplest form 4x+28

Answer:

4x+28

Step-by-step explanation:

Hi there! :)

The Distributive property is here to help us simplify!

Let's remember what this useful property states.

It states that

a(b+c)=ab+ac

Now, let's use this property to simplify the given expression:

4(x+7)

4x+28

Hope it helps!

Enjoy your day!

[tex]\bf{-Misty ~Sparkles-[/tex]

what is 9÷10 what is the answer​

Answers

Answer:

the answer is 1.20 because i don't know this

Step-by-step explanation:

The answer should be 0.9

how many boys are in the choir​

Answers

9514 1404 393

Answer:

  D.  210

Step-by-step explanation:

If b is the number of boys in the choir, the ratio of boys to girls is ...

  b/150 = 7/5

  b = 150(7/5) = 30(7) = 210

There are 210 boys in the choir.

What is the value of the expression below? 8 + 24 / 2 X 6 - 4

the answer is 76 but i just need to know the step by step explanation ​

Answers

8 + 24 / 2 X 6 - 4

following order of operations divide 24 by 2:

8 + 12 x 6 -4

Multiply 12 by 6:

8 + 72 -4

Add 8 and 72:

80-4

Subtract to get 76

It would take 150 minutes to fill a swimming pool using the water from 5 taps.
A) how many minutes will it take to fill the pool if only 3 of the taps are used? ______ minutes
B) an assumption being made in my working is that all the taps are flowing the same__ ___

Answers

Answer: points for points

Step-by-step explanation:

Hi  t sure what to do?

Ellen has a balance of $15,000 on her car loan and an interest rate of 2.75%. To pay off the $15,000 in five years, Ellen will have to make a minimum payment of $267.87. If Ellen pays $434.57 per month she can pay off her auto loan in 3 years instead. How much more will Ellen pay if she takes 5 years to pay off her loan instead of 3 years?

Answers

Answer:

347$

Step-by-step explanation:

balance of 15000$

loan 2.75%

minimum 267.87

434.57 per month

=347$

15% off an annual subscription of 86$.How much will the customer save.

Answers

Answer:

$12.90/ 12.9

Step-by-step explanation:

divide 15 % by 86

if five times of a number is 125 then 0•8 of this number is​

Answers

Answer:

20

Step-by-step explanation:

5n = 125

n = 25

0.8 x 25 = 20

The dimensions of a cylindrical water tank are shown below.
18 yd
60 yd
Which of the following is the best estimate of the volume of this water tank?
A 58,320 ya
B 3,240 yd
C 14,500 yd
D 19,440 yd

Answers

The best answer to go with is b

Which expressions have a value that is 8 times as much as the sum of 10 and 9? Select the correct answers.
0- 8 x (10 + 9)
1 - 8 x 10 + 9
2- 10 + 9 x 8
3- (10 + 9) x 8
4- (10 x 8) + 9​

Answers

Answer:

3

Step-by-step explanation:

(10+9) = 19

19×8 =152

when you divide 152by8 you still get 19 which is the sum of 10+9

Expand the expression 3(-2a+3b)

Answers

Answer:

-6a +9b

Step-by-step explanation:

First distribute 3 to terms inside parenthesis

-6a + 9b

Final answer  -6a +9b

Help, Grades due Friday!
Two triangles are similar. The lengths of the sides of the smaller triangle are 3 inches, 5 inches, and 6 inches, and the length of the longest side of the larger triangle is 18 inches. What is the perimeter of the larger triangle?
A.
14 inches
B.
18 inches
C.
24 inches
D.
42 inches

Answers

Answer:

42 (d)

Step-by-step explanation:

the longest side of the smaller one is 6, each side of the larger one is just 3x the length of the smaller side. I hope that makes sense, it's just a ratio. Hope this helped! Good luck!

Answer:

The perimeter of the larger triangle is 42 inches.

Step-by-step explanation:

Since the question mentions that the two triangles are similar, we must establish proportions using what we already know.

Smaller triangle: 3 + 5 + 6 = 14

Larger triangle: x + y + 18 = perimeter

Determine the GCF (greatest common factor):

The GCF is 3.

Now, subsitute the values for x and y by solving via the GCF.

Larger triange:  9 + 15 + 18 = perimeter

9 + 15 + 18 = 42

Hope this helps; have a wonderful day!

Find the solutions of this quadratic.
f(x)=(x-8)(x+4)

Answers

l

[tex]x1 = 8 \\ x2 = - 4[/tex]

Which measurement is most accurate to describe the weight of an adult?

1.5 tons
50 lb.
160 oz.
180 lb.

Answers

Answer:

180 lb for an adult

Answer:

180 lb.

Step-by-step explanation:

This is due to the fact that 1.5 tons is literally 3,000 pounds and someone would have to be morbidly obese to weigh that much, 50 lbs. is underweight for an adult, 160 oz is 10 lbs which is even more underweight, which leaves 180 lbs as the last resort as well as the one that makes the most sense.

Brainliest please

Hello, I need help with these math questions, can someone help as soon as you can?

Answers

Answer:

1. x<-2 2. -2<_x 3. x<_ 4

Step-by-step explanation:

hope this helps

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