Reasoning Find the sum (3x + 9) + (- 4x + 8).
combine terms with variables
(3x + 9) + (- 4x + 8) =

Answers

Answer 1

Answer:

-x + 17

Step-by-step explanation:

3x minus 4x is negative x

9 plus 8 is 17


Related Questions

You love nuts. You go to the store to buy almonds and cashews. Cashews cost $2 per pound and Almonds cost $5 per pound. You end up spending $450 on 150 pounds of nuts (you really love nuts). How many pounds of each type of nut did you get? How many pounds of cashews? How many pounds of Almonds?

Answers

The answer should be 450 divided by two

what is the value of

(8+3k)²-(-k-6)²¹ if k=5​

Answers

Answer:=530

Step-by-step explanation:

Which expression is equivalent to 5 + 15x?
0 A. 5(1 + 3x)
ОВ. 1(5 + 3x)
Ос. 3(5 + х)
OD. 5(3x)
оооо

Answers

Answer:

A. 5(1 + 3x)

Step-by-step explanation:

5(1 + 3x)

(5 × 1) + (5 × 3x)

5 + (5 × 3x)

5 + 15x

A works. Let's check the rest.

1(5 + 3x)

(1 × 5) + (1 × 3x)

5 + (1 × 3x)

5 + 3x

B does not work.

3(5 + х)

(3 × 5) + (3 × x)

15 + (3 × x)

15 + 3x

C doesn't work.

5(3x)

5 × 3x

15x

B, C, and D do not work.

your answer is a. 5(1 + 3x)

3
Here is a formula.
V = 1/2 X2 h
Work out the value of V when
(1 Point)
X = 11 and h = 6
Enter your maths answer
11

Answers

Answer:

if V=½X2h then

V=½(11)(2×6)

V=(11/2)(12)

V=66

Use the equation √4x+15 - 3√x How many potential solutions are there? ​

Answers

There is one potential solutions and no extraneous solutions.

Answer:

potential solutions- 1

extraneous solutions- 0

solution to equation- x=3

Step-by-step explanation:

One angle of an isosceles triangle measures 32°. Which other angles could be in that isosceles
triangle?

Answers

Answer:

32° and 116°

Step-by-step explanation:

An isosceles triangle has two equal angles and the other angle is found by subtracting the sum of the two equivalent angles from 180°.

Since, one of the angles are given in the problem, one of the angles is 32°.

To find the other angle, we subtract the two angles from 180°.

180° - 32° - 32°

116°

The other two angles are: 32° and 116°

the bar graph shows the results of spinning a spinner 100 times. use the bar graph to find the experimental probability of the event.

Spinning a 2

Answers

Answer:

you will have an 18% chance of rolling a 2.

Step-by-step explanation:

18/100 = 18

The probability of spinning an even number is 39/10

What is probability?

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Here, we have,

to determine the probability of spinning an even number.

The missing bar chart is added as an attachment

The bar chart (see attachment) represents the graph that would be used to calculate the required probability

On the bar chart, we have the sample size of the even number

Even number = 18 + 21

Even number = 39

So, we have

P(Even) = Even/Total

By substitution. we have

P(Even) = 39/100

Hence, the probability is 39/100

Read more about probability at

brainly.com/question/251701

#SPJ2

bethany had some coffee that she wants to give to her friends She wants to give 1/2 of a liter to each friend

If bethany has 6 liters of coffee to give to her friends how many friends can she share coffee with

Answers

Answer:

she can give one half of the liter to 12 friends if u do the math but if she's including herself, 11 but she isn't therefore 12 friends

Answer:

the answer is 12

Belle deposited money into a savings account. This table gives the value of her account for the first 14 months after the initial deposit. The data can be modeled using an exponential function.

Years 2 4 6 8 10 12 14
Account value $106 $113 $119 $126 $135 $143 $152

Based on the data, which amount is closest to the value of the account 24 months after the initial deposit?

$180
$200
$240
$280

Answers

Answer:

The answer is B 200

Step-by-step explanation:

i just took the test so yah :)

A game company asked people at the mall which game console they owned. They recorded the results in the bar graph below. How many more people owned a Xbox 360 than owned a Gameboy?

Answers

Answer:

Option (4)

Step-by-step explanation:

From the bar graph given in the picture,

Number of people who owned a Xbox 360 = 8

Similarly, number of people who owned Gameboy = 1

Therefore, difference in the number of people having Xbox 60 and Gameboy = 8 - 1

= 7

Option (4) is the correct option.

The area: is about? UHH anyone know this??!!

Answers

3/4 I think I’m not for sure

Answer:

1.77 ft.^2

Step-by-step explanation:

What we know: diameter of circle is 1.5

What we need: the radius to find the area of a circle

What we can do: Divide 1.5 by two to get the radius(since the diameter is twice the radius : radius x 2 = diameter)

Math -->  1.5 divide by 2 = .75

What we need to know: Formula of finding Area of Circle is  A=(pie)r^2

Insert what we know: A=(pie).75^2

Work out problem(do radius to the second power first)#1:  .75^2 =  .5625(unrounded)

Work out problem(multiply number by pie))#2: .5625 multiplied by (pie) = 1.7671458676442586966352369030947‬

Round Answer to nearest hundredth: 1.77 ft.

Note: I use the pie sign for this problem. So I used : 3.1415926535897932384626433832795‬

I used a scientific calculator for the calculations.

^2 is added after the unit to show Area.

To the second power  is multiplying the number by itself. Example: 4^2 = 16 = 4 x 4

In ΔDEF, the measure of ∠F=90°, DE = 91 feet, and FD = 59 feet. Find the measure of ∠D to the nearest degree.

Answers

Answer:

Step-by-step explanation: I need help now pls

Answer:

50

Step-by-step explanation:

\text{SOH-CAH-TOA}

SOH-CAH-TOA

\cos D = \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{59}{91}

cosD=

hypotenuse

adjacent

=

91

59

\cos D = \frac{59}{91}

cosD=

91

59

D=\cos^{-1}(\frac{59}{91})

D=cos

−1

(

91

59

)

D=49.583\approx 50^{\circ}

D=49.583≈50

Type into calculator and round to the nearest degree.

D

E

F

59

91

(adjacent to ∠D)

Find the value of x.

Answers

Step-by-step explanation:

hope this will help you plz check and tell me

I think i remember that all triangles have to add up to 90° meaning that 42°+ 37°=79°

90°-79°=11°

meaning that x=11°

does that sound right correct me if i’m wrong

Correct Answer to this please it’s geometry.

Answers

The answer is y=-2x+5
Y=1/2x-8
1=-2(2)+b
1=-4+b
+4 +4
B=5

What’s 2+2+2+2+3+3+45837298=?

Answers

Answer:

45837312

Step-by-step explanation:

I'm smart. (Sometimes)

Answer:45837312

Step-by-step explanation: I hope i heled you and yea. I think that's what i have to say. UvU 0w0

Help??????? Anyone.

Answers

Answer: if the second angle is vertical to the first one, then they will both have the same degrees which is 131°

Step-by-step explanation:

1) Write an equation of the line with slope =-2 and a y-intercept at (0,5).
A) y = -5x + 2 B) y = 5x – 2 C) y = 2x - 5 D) y = -2x + 5

Answers

Answer:

it should be D

Step-by-step explanation:

I hope this helps!

Find the slope worth 10 points

Answers

Answer:

1/3

Step-by-step explanation:

The slope is m = 1/3

Find the 100th term to 1,3,9,27​

Answers

Answer:

The n-th term of this sequence appears to be

3

n

1

,

n

1

.

Step-by-step explanation:

These are powers of

3

ordered from

3

0

=

1

to

3

a

(for an integer

a

1

). However, the first convenient value for

n

is

1

, not

0

(imagine saying the 0th term of a sequence). Because of that, since the first term is actually

3

0

, we need to start from the first term (

n

=

1

) being

3

1

1

. The next is

3

2

1

,

3

3

1

...

3

n

1

.

How do I answer this???

Answers

Answer:

8/17

Step-by-step explanation:


The lengths of the legs of a right triangle are 8 yards and 15 yards. What is the length, in yards, of the third side of the triangle?
A.23
B.17
C. 12.7
D.11.5

Answers

Answer:

B

Step-by-step explanation:

By inspection it can' be C or D since they are shorter than the 15 yard side.

Also B is just slightly big than 15, so it is mostly likely incorrect

I would guess A is the answer,      proven to be INCORRECT see below

the correct answer is B. 17 yards

check the answer using the pythagorean theorem

a² + b² = c²

a = 8

b = 15

c = √(64 + 225)

  = √289

 = 17   my guess was wrong!!!!

what is the proportion of 22/3

Answers

Answer:

not to sure but is it  733.333333333333%

Step-by-step explanation:

Given the definitions of f(x) and g(x) below, find the value of g(f(-1)).
f(x) = 3x² + 5x – 7
g(x) = 2x + 13

Answers

Answer:

-5

Step-by-step explanation:

At first,

f(-1) = 3 x (-1)² + 5 x (-1) -7

= 3 - 5 - 7

= -9

g(f(-1)) = g(-9)

= 2 x (-9) + 13

= -18 + 13

= -5

A student solved the equation sin2x/cosx=2, 0(greater than or equal)x(greater than or equal)pi, and found an answer of pi/2. Describe the student's error.

Please show all steps.

Answers

Answer:

The student forgot about the double angle identity.

Step-by-step explanation:

sin2x/cosx=2

This is the double angle identity

sin2x=2sin(x)cos(x)

(2sinxcosx)/cosx=2

2sinx=2

sinx=1

x=sin^-1(1)

x=90 degrees OR pi/4

This was my answer for the test and got full points :)

identify the domain and range of the relation

{(4, 2), (1, 3), (0, 0), (-1, -1), (1, -3)

Answers

Answer:

So, the domain are:

[tex]x = 4,1,0,-1[/tex]

The range are:

[tex]y = 2,3,0,-1,-3[/tex]

Step-by-step explanation:

Given:

[tex]\{(4, 2), (1, 3), (0, 0), (-1, -1), (1, -3)\}[/tex]

Required

The domain and the range

In relation, we have:

[tex]\{(x_1, y_1), (x_2, y_2), ......, (x_n, y_n)\}[/tex]

Where the x values are the domain and the y values represent the range.

So, the domain are:

[tex]x = 4,1,0,-1[/tex]

The range are:

[tex]y = 2,3,0,-1,-3[/tex]

An apple cost Php x per piece. How many will 3 dozen cost?

A. Php 3x
B. Php 12x
C. Php 24x
D. Php 36x​

Answers

D.Php 36x because 1 dozen is = 12 pieces so if there’s 3 dozen of apple it would be 12 x 3 the answer which is 36

HELP!!!!!!
Rylan bought a jacket for $32.25 and y shirts for $12.99 each. Which of the following expressions shows the total amount of money she spent?
A. 32.25y + 12.99
B. 32.25y + 12.99y
C. 32.25 + 12.99y
D. 32.25 + 12.99 + y​

Answers

Answer:

the answer is c

Step-by-step explanation:

Trust me

PLS HELP I BEG YOU IT IS DUE TODAY ILL GIVE BRAINLIEST

What is the surface area of the rectangular prism?




138 cm²

200 cm²

276 cm²

280 cm²

Answers

Answer:

276 cm²

Step-by-step explanation:

A=2(wl+hl+hw)

A=2(4x7+10x7+10x4)

A=2(28+70+40)

A=2(138)

A=276 cm²

help me please i need help

Answers

Answer:

k= 70

Step-by-step explanation:

K=77-7
K=70
:)))))))))

Solve and check
please please help i will mark u as a brill it is easy please

Answers

Answer:

B=25

Step-by-step explanation:

Subtract 25 on both sides to get b alone and you get b=25!
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