Does anyone know this?

Answer:

x=-8

Step-by-step explanation:

Multiply -4 by each number in the parenthesis ( distributive property )

Add x to -8x ( -7x )

Add 44 to 12 ( 56 )

Divide 56 and -7

 You should get x=-8

Answer:

mass, pressure, density is the right answer

Step-by-step explanation:

The three main characteristics that can be used to describe air are: C. mass, pressure, density.

Altitude deals with elevation of an object.

Radiation relates to transmission of energy through a medium in form of waves.

Air has mass, pressure, and density.

Therefore, the three main characteristics that can be used to describe air are: C. mass, pressure, density.

Learn more about characteristics of air on:

https://brainly.com/question/15536453

Answer: 2

Step-by-step explanation:

count number a blocks it went up (4)

count number of blocks it goes to the right (2)

if it goes to the left or down the answer would have been negative

4/2 = 2

Answer:

1400

Step-by-step explanation:

8 times 7 times 25 = the volume

=1400

Answer:

1400

Step-by-step explanation:

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

The statement radioactive nuclei are highly stable and emit radiation to become unstable is FALSE.

To determine if the statement is true or false we need to know what radiactivity is

Radioactivity is the spontaneous disintegration of unstable atomic nuclei to form stable more energetic nuclei with the emission of radiation.

Radioactivity includes the following

So, radioactive nuclei which are unstable emit radiation and become more stable.

So, the statement radioactive nuclei are highly stable and emit radiation to become unstable is FALSE.

Learn more about here:

https://brainly.com/question/25756215

Answer:

No.

Step-by-step explanation:

Rational numbers are any of the following:

Irrational numbers are thus defined as:

This means that -8.7 is not irrational, as it is not an unending, non-repeating number: an easy way to remember how to answer this is to look at whether the number has been expressed in decimal form if it has (unless you have been told that it has been rounded) it must be rational, as it can be written as a decimal number.

Answer: The answer is nine, because

14 ft to 21 ft = 2 ft to 3 ft

Answer:

87?

Step-by-step explanation:

slipknot is the answer to all your problems

Answer:

C

Step-by-step explanation:

5x-2+3=3(x+3)

Answer:

pic is gliched for me

Step-by-step explanation:

Answer:

Perimeter:40 Area:60

Step-by-step explanation:

To find the perimeter add all the sides

15+17=32   32+8=40

To find the area it is A=1/2bh (base times height times 1/2)

A=1/2(15)(8)

A=1/2(120)

A=60

When doing the area of a triangle, think of it as finding the area of a rectagle, then cutting it in half.

Answer:

f(1) = 16

Domain: 0 ≤ t ≤ 2

Step-by-step explanation:

Given

f(t) = -16t²+ 32t

Solving (a): f(1)

Substitute 1 for t in f(t)

f(t) =− 16t²+ 32t .

f(1) =− 16 * (1)²+ 32 * 1

f(1) = -16 * 1 + 32

f(1) = -16 + 32

f(1) = 16

Solving (b): The domain

The implication of the given parameter in (b) is that t ≤ 2.

Since t represents time, t can't be negative.

Hence, a reasonable domain is

0 ≤ t ≤ 2

Answer: 29.16

Step-by-step explanation:

1.)

324 ÷27= 12

2.)

2.43 x 12= 29.16

Answer:

221

Step-by-step explanation:

use bidmas (brackets,indices, division,multiplication,addition,substraction)

Answer:

Constitution Hall was owned by the Daughters of the American Revolution (DAR), who refused to let African Americans perform there.

Step-by-step explanation:

The Daughters of the American Revolution proudly practices a non-discrimination policy and encourages and celebrates diversity in our organization. However, in 1939, opera singer Marian Anderson was denied the opportunity to perform in DAR Constitution Hall because of her race.

If this was helpful please mark brainliest

Answer:

The answer is ,,the nation-wide recognition that Marian Anderson received for her cause,,

Step-by-step explanation:

Answer:

3x³ + 3x² - 3

Step-by-step explanation:

Step 1: Write expression

(2x³ + 4x² + 1) + (x³ - x² - 4)

Step 2: Combine like terms

3x³ + 3x² - 3

Answer:

Hence the weight of chalk stick is 25 g.

Explanation:

Let the weight of a stick be x gm.

12% of x=3

(12/100)*x=3

x=3*(100/12)=25 g

Answer:

Step-by-step explanation:

let chalk contains 10x calcium, 3x carbon, 12x oxygen.

percentage of carbon in the chalk:

=                  3x              x 100

        10x + 3x + 12x

=  3x    ( 100 )

   25x

= 3 (4)

= 12%

Now, we know that carbon has 12% of chalk.

weight of carbon = 12% x weight of chalk. ------------- equation

plugin values into the equation:

3 = 12% (weight of chalk)

3 =   12     (weight of chalk)

      100

  12     (weight of chalk) = 3

 100

weight of chalk = 3 (100)

                               12

weight of chalk = 25g

Answer:

Friend A pays $340 and friend B pays $510

Step-by-step explanation:

Let's call

x: payment of friend A

1.5x: payment of friend B

The sum of both payments must total $850, thus:

x + 1.5x = 850

Simplifying:

2.5x=850

x = 340

Now for friend B:

1.5x=1.5*340=510

Friend A pays $340 and friend B pays $510

Answer:

2/5

Step-by-step explanation:

Use the distance formula to determine the distance between two points.

Answer:

The distance is

3√10  or about 9.49 (rounded to nearest hundredth's place).

Step-by-step explanation:

The distance is

3

√

10

or about

9.49

(rounded to nearest hundredth's place).

Explanation:

The formula for the distance for 3-dimensional coordinates is similar or 2-dimensional; it is:

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

+

(

z

2

−

z

1

)

2

We have the two coordinates, so we can plug in the values for

x

,

y

, and

z

:

d

=

√

(

−

2

−

1

)

2

+

(

−

3

−

(

−

3

)

)

2

+

(

4

−

(

−

5

)

)

2

(I wasn't sure if the

3

−

meant

3

or

−

3

, so I assumed it was

−

3

)

Now we simplify:

d

=

√

(

−

3

)

2

+

(

0

)

2

+

(

9

)

2

d

=

√

9

+

0

+

81

d=√90

d=3√10

If you want to leave it in exact form, you can leave the distance as

3√10

. However, if you want the decimal answer, here it is rounded to the nearest hundredth's place:

d≈9.49

Hope this helps!

Answer:

always true

Step-by-step explanation:

Simplify, and if possible solve the equation to find out

remember, inverse operations

5x - 10 + 2x = 7 + 7x - 17

simplify both sides

7x - 10 = 7x - 10

this is an identity, no matter the value of x put in, the equation will be true,

hence the equation is always true

Answer:

8 1/30

Step-by-step explanation:

(10-8) + (1/5 - 1/6)

Answer:

8  1/30

Step-by-step explanation:

Find the common deminator, then subtract!!

Answer:

Step-by-step explanation:

yuuu

Answer:

The answer is b1= -√42, b2= √42

Step-by-step explanation:

Answer:

Step-by-step explanation:

all i can say is number one is y=3

for the rest of em. ur on ur own bud

Answer:

Step-by-step explanation:

Given points

Slope-intercept form

Slope of the line is

The y-intercept is:

So the line is:

Answer:

y = -2/3 - 8/3a

Step-by-step explanation:

Find the slope using [ y2-y1/x2-x1 ]

6a-2a/-5a-a

4a/-6a

-2/3

Find the y-intercept.

y = mx + b

y = -2/3x + b

2a = -2/3(a) + b

-8/3a = b

y = -2/3 - 8/3a

Best of Luck!

Answer:

In one minute 4/3 of a cup will be filled.

Step-by-step explanation:

1/4 of a minute is 60 (seconds) divided by 4 = 15

15/60 = 1/4 of a minute

1/3 of a cup in 15 seconds

1/3+1/3+1/3+1/3 = 4/3

Answer:

No

Step-by-step explanation:

If you plug in the coordinates (4,2) to y=x-2 it will give you 2=2 which is rite, but if you plug it in to y=3x+4 it will give you 2=16 which isn't rite.

Answer: 9/10

Step-by-step explanation: I know this because 9 times 9 is 81 and 10 times 10 is 100.

Answer:

35.72 is the answer to the problem

Answer:

P=2(L+w)

Step-by-step explanation:

Answer:

Explanation below

Step-by-step explanation:

(3+4)= 7

7+2 = 9

-(3-4) (Invisible one)

-3+4 add to the 9

10

10+2= 12

12-4=8

8×4 =32

Sorry if this seems a bit confusing, but its quite hard to show the process without paper.

Hope this helps! :)