Mathematics College

Could you please show work :)

Answers

Answer 1

Answer:

x= 12/7

Step-by-step explanation:

3x+4x=12

Step 1: Simplify both sides of the equation.

3x+4x=12

(3x+4x)=12(Combine Like Terms)

7x=12

Step 2: Divide both sides by 7.

7x 7 = 12 7 x= 12 7

12/7

Related Questions

what is the distances between 2,2 and 2,6

Answers

Answer:

0,4

Step-by-step explanation:

Subtract the points

-20 greater than or equal to 5w

Answers

Answer:

It depends is w is a negative or positive number

Step-by-step explanation:

5w could = 5 x 4 = 20 this is greater than -20

5w could = 5 x -4 = -20 this is equal to -20

hope this helps...

Help!
There are _____
1. 140
2. 1,400
3. 14,000
4. 140,000
decigrams in 14 hectograms.

Answers

3. 14,000 decigramos

3.14,000 is the answer

Reduce to simplest form.
7
+
8
)
I
2

Answers

Answer:

= -15

Step-by-step explanation:

Hope this helps!!

At school, the maximum number of students that can be in a classroom is 25. If there are 20 students signed up for the chemistry class, how many more students can join the class? What are the solutions? Select the correct choice below and fill in the answer box to complete your choice. O A. The number of students that can join the class is at least OB. The number of students that can join the class is at most Click to select and enter your answer(s).

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Consider the quadratic function, f(x)=-2x^2+12x+32=0. Select all statements that are true for the function. The value of the discriminant is -112. The value of the discriminant is 20. The value of the discriminant is 400. The function has 1 real solution. The function has 2 real solutions. The function has 2 complex solutions.

Answers

Answer:

Step-by-step explanation:

-2x² + 12x + 32 = 0

discriminant = 12² - 4(-2)(32) = 400

positive discriminant means there are two distinct real roots

x = [-12 ± √(12² – 4(-2)·32)] / [2·(-2)]

= [-12 ± √400] / (-4)

= [-12 ± 20] /(-4)

= 8, -2

i wyete yesterday w to do the same as the one that we have to

A 5 gallon radiator containing a mixture of water and antifreeze was supposed to contain a 50% antifreeze solution. When tested, it was found to have only 40% antifreeze. How much must be drained out and replaced with pure antifreeze so that the radiator will contain the desired 50% antifreeze. pls explian the steps of how you got it

Answers

Answer:

90% will be anti frozen

Step-by-step explanation:

90% i just added 50%+40%. sorry if thats basic.

Hello please answer :) will give brainlst

Answers

Answer:

Step-by-step explanation:

I found out A and D are true, but if to choose one, I would say D

Answer:

Step-by-step explanation:

Calcium is a compound

Someone please help!! 50 points! I have no idea how to do these so If someone could please give the steps and answer it would be greatly appreciated!

Answers

Answer:

3. 97*

4. 43*

5. 4*

6. E = 15*

Step-by-step explanation:

14 divided by 2 = 7 + 90 = 97

5 divided by 2 = 2.5 rounded to nearest tenth makes 3 + 40 = 43

8 divided by 2 = 4 -AB = 4B

DE3* x EF5* = 15

Answer:

MK = 7, DE = 4.2, m∠B = 48°, sin (E) = 4/5

Step-by-step explanation:

Question 3

This is a 30° right triangleMK is opposite to 30° angle ⇒ LK = 2MK ⇒ MK = 14/2 = 7

Question 4

FE = 5m∠F = 40°DE/FE = tan (F)DE = 5 tan (40°) = 4.2 (rounded)

Question 5

AB = 8AC = 12cos (B) = 8/12 = 2/3m∠B = arccos (2/3) = 48° (rounded)

Question 6

sin (E) = DF/EF = 4/5

Which family lives the closest to Disneyland?
Family A:
Family D:
y = 95-55x
Family B:
Distance
50
Family B lives 120 miles from Disneyland
and drives 60 mph.
40
30
Family C:
Hours
20
Distance
from
Disneyland
80
10
0
1.5
0
0.2 0.4 0.6 0.8
1
1.2 Time (hours)
O Family A
O Family B
O Family C
O Family D

Answers

Answer:

Family D

Step-by-step explanation:

I think that is D......

describe the transformations needed to translate the graph y=1/x to the graph of y=1/x+3 -4

Answers

i cant describe but i put y=1/x+3 -4 on the graph hope this helps

Answer:

to the left 3 and down 4

Step-by-step explanation:

Use the Distributive Property to complete the equivalent expression.
4(y – 3) = _y - _

Answers

Answer:

4y - 12

Step-by-step explanation:

4(y-3)

4 x y= 4y

4 x -3 = -12

4y - 12

Solve:
X - 15 ≤ 8

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

Answers

Answer:

it could be 23 or less

Step-by-step explanation:

8 + 15 = 23 or less than is good

Answer:

X≤23

Step-by-step explanation:

Add 15 to both sides.

X≤8+15

Simplify 8+15 to 23.

X≤23 is the Answer

2x-3y=3
find the slope and y intercept

Answers

Try going into a slope calculator, they usually help if you just type online ‘slope calculator’

Question 5
Reflected figures are always
?
O Smaller
O Bigger
Rotated
Congruent

Answers

Answer:

Congruent

Explanation:

The reflection never changes the angle measures or side lengths of the figure.

Explain answer !!

( WILL GIVE BRAINLEST)

Answers

Answer: B. 8

Step-by-step explanation: 3*2=6. What you have to do to the top you have to do to the bottom. So, 4*2=8

Problem
Jasmine has about 14 hours left to
devote to her project. It must be done
in 3 days. How many hours will she need
to devote to the project each day?
31
Write and solve the problem as a
division problem.
Show your work.
U U

Answers

Answer:

4.67 hours

Step-by-step explanation:

The computation is shown below:

Given that

There is 14 hours remaining for devoting in a project

Also it must be completed in 3 days

So the number of hours she need to devote each day is

= 14 hours ÷ 3 days

= 4.67 hours

tiffany is taking her end of course exam. she has completed questions 16 and the prgress bar shows 40%. how many questions are in the tesat

Answers

Answer:

Step-by-step explanation:

16 ÷ 40% = 40

40% of 40 = 0.4 × 40 = 16

Answer: 40

Step-by-step explanation:

How do percents show the relationship between quantities?

Answers

Answer: Decide whether two quantities are in a proportional relationship, by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin . Use proportional relationships to solve multistep ratio and percent problems.

Step-by-step explanation:

Algebra quadrilateral dklm is a rhombus if dk=8, find kL

Answers

Pretty sure kL is also 8 since it’s a quadrilateral

caroline can sketch 5 cartoon strips in two hours. How long will it take her to sketch 20 strips

Answers

Answer:

8 hours

Step-by-step explanation:

20÷5 = 4

4×2 = 8

Hope this Helps!

Kayla is thinking of a 3-digit number.

* It is divisible by 18.

* It is a palindrome (It reads the same left-to-right as it does right-to-left, like 252 and 848).

* It is one less than a multiple of 5.

What is Kayla’s number?

Answers

Answer:

kaylas thinking of the number 414

Step-by-step explanation:

414 is divisable by 18 (414 divided by 23)

414 is palindrome

414 is one less than a multiple of 5 (415)

Answer:

414

Step-by-step explanation:

The last digit must be 4 or 9 since it is one less than a multiple of five. Then, it says the number must be divisible by 18, and 18 = 2x9. Only 4 is divisible by 2, so four must be the last digit. Since it's a palindrome, the first digit must also be four. Since it also has to be divisible by nine, 4 + 4 = 8, and 8 + 1 = 9.

In which Quadrant does the point (21 , 15) Lie?

Answers

it is located in the first or I quadrant

It lies in first quadrant as it is in the form (+,+).

Nelda needs to wrap a holiday gift box. The box is in the shape of a rectangular prism with the dimensions shown.

Answers

Answer:

416 in²

Step-by-step explanation:

Given that:

Height. h = 4 in

Length = 12 in

Width = 10 in

The surface area of a rectangular prism is obtained using the relation :

Surface Area, S = 2(lw + lh + wh)

S = 2[(10*12) + (10*4) + (12*4))

S = 2(120 + 40 + 48)

S = 2(208)

S = 416 in²

What is seven and forty hundredths in standard form

Answers

Answer:

7.04

Step-by-step explanation:

Convert the expression (√5)(∛5) to exponential form. Show your work.

Answers

Answer:

[tex] {5}^{ \frac{5}{6}}[/tex]

Step-by-step explanation:

[tex]( \sqrt{5} )( \sqrt[3]{5}) \\ \\ = ({5}^{ \frac{1}{2} } ).({5}^{ \frac{1}{3} } ) \\ \\ = {5}^{ \frac{1}{2} + \frac{1}{3} } \\ \\ = {5}^{ \frac{3 + 2}{2 \times 3}} \\ \\ \huge \red{ \boxed{ = {5}^{ \frac{5}{6}} }}[/tex]

What is the range of the graph of f(x) = -3(x-4)?

Answers

Answer:

The graph

Step-by-step explanation:

a. Which segments are parallel to RU?
b. Which segments are skew to SW?
c. What are two pairs of parallel planes?
d. What are two segments parallel to plane RUYV?

Answers

Answer:

a. VY, WX, ST

b. RU, UT, VY, YX

c. (RSWV, UTXY), (STXW, RUYV)

d. TX, SW

HOPE THIS HELPS YOU

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Answers

Answer:

try 36?

Step-by-step explanation:

If f(x) =X +3, what is the value of f(3) and f(-2)?

Answers

THIS ANSWER IS FOR f(3):
f(x)=x+3
f(3)=3+3
f(3)=6

THIS ANSWER IS FOR f(-2):
f(x)=x+3
f(-2)=-2+3
f(-2)=1

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