The product of two numbers is 21. If the first number is -3, which equation represents this situation and what is the second number?

A. The equation that represents this situation is x − 3 = 21. The second number is 24.
B. The equation that represents this situation is 3x = 21. The second number is 7.
C.The equation that represents this situation is -3x = 21. The second number is -7.
D.The equation that represents this situation is -3 + x = 21. The second number is 18.

Answers

Answer 1

Answer:

C

Step-by-step explanation:


Related Questions

Please answer this I need helllp​

Answers

Answer:

Equation: y = 2x

Graph: see attachment

Step-by-step explanation:

Pieces of paper = x

Number of Valentines = y

The equation is a proportional equation and can be represented as y = kx

k is the constant of proportionality

k = y/x

Using (2, 4),

k = 4/2 = 2

To find the equation, substitute k = 2 into y = kx

Thus:

y = 2x

The graph has been plotted and attached below.

Rename The following decimal form into fraction form. 1)0.75 2)0.35 3)0.24​

Answers

Answer:

1) 3/4

2) 7/20

3) 6/25

Step-by-step explanation:

1) 0.75

= 75/100

= 3/4

2) 0.35

= 35/100

= 7/20

3) 0.24

= 24/100

= 6/25

Hope it helps!

Arithmetic sequence

Answers

Answer:18

Step-by-step explanation:

Note: Mathematicians start counting at 1, so by convention, n=1 is the first term. So we must define what the first term is. Then we have to figure out and include the common difference.

Taking a look at the examples again,

Sequence: 1, 2, 3, 4, … | Formula: a(n) = n + 1 | Recursive formula: a(n) = a(n-1) + 1, a(1) = 1

Sequence: 3, 8, 13, 18, … |Formula: b(n) = 5n - 2 | Recursive formula: b(n) = b(n-1) + 5, b(1) = 3

What is the rate of change for (0,5) (-6,-3)

Answers

Answer:

[tex]1 \frac{1}{3}[/tex]

Step-by-step explanation:

rate of change = Δy / Δx = y2 - y1/x2 - x1

                                         = -3 - 5/-6 - 0

                                         = - 8/-6

                                         = 1 and 1/3rd

4. There are 9x - 7 customers in a store on Monday and 5x + 15 customers on Tuesday. What is the total number of customers for the two days? *

Answers

Answer:

14x +8

Step-by-step explanation:

9x -7 + 5x +15

9x +5x -7 +15

Is -6/3 a whole,integer,or rational

Answers

Answer:

-6/3 is a rational

Step-by-step explanation:

its a rational because it expresses as the ratio of two integers.

if £1 = 0.864 Lt, work out the amount, to the nearest penny , that 1 Lt is worth

Answers

Answer:

[tex]1\ Lt = \pounds 1.157[/tex]

Step-by-step explanation:

Given

[tex]\pounds 1 = 0.864\ Lt[/tex]

Required

Determine the worth of 1 Lt

[tex]\pounds 1 = 0.864\ Lt[/tex]

Divide both sides by 0.864

[tex]\pounds \frac{1}{0.864} = \frac{0.864}{0.864}\ Lt[/tex]

[tex]\pounds \frac{1}{0.864} = 1\ Lt[/tex]

[tex]1\ Lt = \pounds \frac{1}{0.864}[/tex]

[tex]1\ Lt = \pounds 1.157[/tex] --  approximated

help due tonight
plssss

Answers

Answer:

Perpendicular to base

Step-by-step explanation:

The cut creates two rectangular prisms (each angle must be 90 degrees)

The cut is perpendicular to the base


[tex]4 - 4[/tex]
[tex]7 \times 9[/tex]

Answers

Answer: 4-4=0. 7X9=63

If f(x) = (1/8)(8^x), what is f(3)?

Answers

Answer:

f(3)=64

Step-by-step explanation:

f(3)=(1/8)(8 cubed)

f(3)= 8 to the negative one times 8 cubed

f(3)= 8 squared

f(3)=64

Answer:

f(3) = 64

Step-by-step explanation:

In this question, you would plug in "3" to "x" and solve.

Solve:

f(3) = (1/8)(8³)

f(3) = (1/8)(8·8·8)

f(3) = (1/8)(512)

f(3) = 512/8

Simplify.

f(3) = 64

Your final answer would be f(3) = 64

find the maximum and minimum values of the function y=1/2 sin2x

Answers

Answer:

Maximum value equals 1/2

Minimum value equals -1/2

Step-by-step explanation:

The Sin Function when Graphed Shows a Range of [-1 , 1]

apply that on y=1/2 sin2x

y = 1/2 * 1 = 1

y = 1/2 * -1 = -1

so y = 1/2 , -1/2 .

Another Method using 1st derivative

dy/dx = 2 * 1/2 * cos2x

put dy/dx=0

cos2x=0

x= 45, x=135

Apply x values on y=1/2 sin2x

y = 1/2 , -1/2 .

Hope you understand it ^^.

Answer: A

Step-by-step explanation:

Which of the following is a power function? Select all correct answers.

Answers

Answer:

The 1st, 4th, and 5th

Step-by-step explanation:

A power function is a function with a single term that is the product of a real number, a coefficient, and a variable raised to a fixed real number.

A businessman dropped a coin from the top floor of his office building and it fell according to the formula S(t)=−16t^2+3t^0.4, where t is the time in seconds and S(t) is the distance in feet from the top of the building.

Answers

Answer:)

Step-by-step explanation:

Find the missing side of the triangle. Round your answer to the nearest tenth if
necessary.
9.7
4.9
X

Answers

Answer:

10.9

Step-by-step explanation:

adding there squres you get 118.1 taking the squareroot of that you get 10.9

UM PLEASE HURRY FOR ANSWERING THIS!!!

Select the procedure that can be used to show the converse of the Pythagorean theorem using side lengths chosen from 5 cm, 9 cm, 12 cm, and 15 cm

Answers

Answer:

Therefore  the hypotenuse of the triangle is 15 cm and other two sides of the triangle are 9 cm and 12 cm and one angle of the triangle is 90°.

Step-by-step explanation:Pythagorean Theorem: According to this theorem the result obtained by  squaring the value of the hypotenuse of a right angled triangle is equal to the sum of the squares of the values other two sides of the triangle.

Hypotenuse = h

Altitude = l

Base = b

l²+b²=h²

Here 6²=36

9²=81

12²=144

15²=225

From the above it is clear that

81+144=225

⇒9²+12²=15²

Therefore  the hypotenuse of the triangle is 15 cm and other two sides of the triangle are 9 cm and 12 cm and one angle of the triangle is 90°.

Hope this helps!

Answer:

I believe it's Therefore  the hypotenuse of the triangle is 15 cm and other two sides of the triangle are 9 cm and 12 cm and one angle of the triangle is 90°. I'm not so sure sorry if it's incorrect

Step-by-step explanation:

A line has a slope of 2 and passes through the point -7,-10 What is its equation in point-slope form

Answers

I don't know the answer


A)
450 mm2
B)
67,500 mm2
C)
600 mm2
D)
150 mm2

Answers

Answer:

im pretty sure its c

Step-by-step explanation:

i to the power of 121 is equal to what

Answers

Answer:

1

Step-by-step explanation:

Hope this helps and have a great day!!!!!

4.5 = 1.5x
4.5 ÷ ___ = 1.5x ÷ ___
___ = x​

Answers

Answer:

The value of x is 3.

Step-by-step explanation:

The steps are :

4.5 = 1.5x

4.5 ÷ 1.5 = 1.5x ÷ 1.5

3 = x

Greta currently works 45 hours per week and earns a weekly salary of $729. She
will soon be starting a new job where her salary will be increased by 10% and her
hours reduced by 10%.
How much more will she be earning per hour at her new job?

Answers

Answer:

Step-by-step explanation:

current rate = $729/(45 hours) = $16.20/hour

increased salary = 1.10×$729 = $801.90

decreased hours = 0.90×45 = 40.5

increased rate = $801.90/(40.5 hours) = $19.80/hour

increase in rate = $19.80/hour - $16.20/hour = $3.60/hour

What is the value of the expression 4 × (2a − 1) if a = 3?
A16


B20


C23


D25

Answers

B I’m going to guess

solucion plis 4x- 2x > -8 -6​

Answers

The answer is,

[tex]x > - 7[/tex]

hope it helps.

Answer:

x>-7

Step-by-step explanation:

4x-2x>-8-6

-2x>-14

x>-7

There were two partners Fred and jack Fred can paint 3 paintings per hour, and jack can paint 2 paintings per hour Fred has already painted 9 paintings and Jack has completed 10 paintings they took a break when they finished the same total number of paintings how many paintings did they each make in total? How long will it take each painter?

Answers

Answer:

bbbdbrhrhfhdbfhfhchchfhffh

how many triangles can be constucted measuring 60°, 60°, and 40°​

Answers

Answer:

None, the sum of those angles does not equal 180 degrees

Answer:

none of the traingle can be constructed

The answer of this question is none. The sum of these three angles is 160°. So, none of the triangles can be constructed with angles measuring 60°, 60° and 40°

60°+60°+40°=160°

The sum of three angles is 160°

so, none of the traingle can be constructed with angles measuring 60°,60°and 40°.

Step-by-step explanation:

Hope it is helpful....

PLZ HELP ME THIS IS 7TH GRADE MATH I NEED HELP ASAP

Answers

Answer:

8 is 73 corresponding and 9 is 107 supplementary

Step-by-step explanation:

charlotte has 3 yards of fabric she needs to cut the fabric into 7 equal peices. how many yards long should each peice of fabric be?

Answers

Answer:21

Step-by-step explanation:

Need help for geo..will mark brainlist

Answers

1st pair of triangles :

Postulate/theorem = SAS postulate

Explanation :

Given :

One side in both triangles are congruent. Another side in both triangles is also congruent. The angles between these two sides are also equal.

Since 2 sides and an included angle is equal in these two triangle, they are said to be congruent under the SAS congruence postulate.

2nd pair of triangles :

Postulate/theorem = ASA postulate

Explanation :

Given :

In triangle KDS and triangle KWS :

Angle K = Angle KAngle S = Angle SSide KS = Side KS

Since 2 angles and an included side is equal in these two triangles, they are said to be congruent under the ASA congruence postulate.

3rd pair of triangles :

Postulate/theorem = AAS theorem

Explanation :

Given :

In triangle ACB and triangle BED :

Angle A = Angle BAngle B = Angle DSide CB = Side ED

Since two angles and one side is equal in these two triangles, they are said to be congruent under the AAS theorem.

can someone help me ?

Answers

Answer:

What question are you referring to? a question references question 5 and 6 which aren't displayed.

Select the correct answer from each drop-down menu. Complete each sentence about types of photography. photography involves capturing the subject of your photograph in motion, whereas photographing Inanimate objects. > photography involves​

Answers

Answer:

1. whale 2. crowded boat

Step-by-step explanation:

on edge

Answer:

1. whale 2. crowded boat yw

Step-by-step explanation:

IF KOBE HAD 8 DUNKS AND LEBRON HAD 10, HOW MANY MORE DUNKS DID LEBRON HAVE THEN KOBE?

Answers

Answer:

2

Step-by-step explanation:

10-8

Answer:

Step-by-step explanation:

2

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