Write an equation of the line that passes through the point (8, -1) and is perpendicular to the line pictured.
A) y = 4x
B) y = 4x + 1
C) y = -1/4x
D) y = -1/4x + 1

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:

1. Animals.

2. Plants.

3. Fungi

4. Protists.

5. Monerans.

6. Kingdom.

7. Botany.

8. Reproductive parts.

9. Vegetative parts.  

10. Epidermis.

Step-by-step explanation:

1. Insects, birds: Animals. All insects and birds are living organisms generally referred to as animals.

2. Moss, trees: Plants. Moss and trees are living organisms generally referred to as plants.

3. Yeast, molds: Fungi. They belong to a kingdom of multi-cellular eukaryotic organisms which can't make or produce their own food (heterotrophs).

4. Protozoa, red algae: Protists. They belong to a kingdom of single-celled (unicellular) eukaryotic microscopic organisms.

5. Bacteria, blue-green algae: Monerans. They belong to a kingdom of single-celled (unicellular) prokaryotic organisms without a nuclear cell membrane.

6. Five main groups of all living things: Kingdom. These are namely Kingdom Animalia, Kingdom Fungi, Kingdom Plantae, Kingdom Monera and Kingdom Protista

7. The study of plants: Botany.

8. Flowers, fruits, and seeds: Reproductive parts.

9. Roots, stems, and leaves: Vegetative parts.

10. Provides plant cover on leaves and roots: Epidermis.

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: 29.16

Step-by-step explanation:

1.)

324 ÷27= 12

2.)

2.43 x 12= 29.16

14 ft to 21 ft = 2 ft to 3 ft

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:

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Answer:

Step-by-step explanation:

yuuu

Answer:

The answer is b1= -√42, b2= √42

Step-by-step explanation:

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:

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!

Find the multiples of each number:

18: 1 , 2 , 3 , 6 , 9 , 18

24: 1, 2, 3, 4, 6 , 8, 12, 24

Now find the matching numbers:

1 , 2, 3 , 6

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:

B. It is a composite number.

Step-by-step explanation:

143 can be divided by 11 and 13 making it a composite number.

The number 143 is a composite number due to having more than two factors.

The factors of the number 143 are 1, 11 and 13.

Prime number has only two factors i.e. 1 and the number itself while composite numbers can have more than two factors.

143 = 1*11*13

Since the number 143 has 3 factors i.e. 1, 11, and 13.

So, The number 143 is a composite number.

Therefore, The number 143 is a composite number due to having more than two factors.

To get more about composite numbers visit:

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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:

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:

#2

Step-by-step explanation:

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: 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:

109.6cm^2

Step-by-step explanation:

To find the area of a trapezoid the formula is (a+b)/2*h so for this problem, (12+15.4)/2*8= 27.4/2*8= 13.7*8=109.6cm^2

Hope this helped you out! :)

Answer:

B- 19.84

Step-by-step explanation:

Answer:

87?

Step-by-step explanation:

slipknot is the answer to all your problems

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! :)

Answer:

The answer is 3,375

Step-by-step explanation:

5 x 3=15

15 to the 3rd power is 15 x 15 x 15

15 x 15 x 15= 3,375 :)

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:

ab*e/2-c+f=d

Step-by-step explanation:

d = 2.426

Answer:

141.421356237

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.

Answer:

9x and -4x

Step-by-step explanation:

Both 9x and -4x have the same variables? (Please correct if I am wrong..)

A(a) = 24 cm²

A(b) = 40.04 cm² ≈ 40 cm²

Hi there !

area formula (rectangle)

A = l × w

A(a) = 8cm × 3cm = 24 cm

A(b) = 5.2cm × 7.7cm = 40.04 cm² ≈ 40 cm²

Good luck !

-3

Step-by-step explanation:

-2a+6=12

collect like terms

-2a=12-6

-2a=6

divide both sides hy the coefficient of a

-2a/-2 =6/-2

a= -3

Answer:

rational, integer

Step-by-step explanation: