D
Question 9
1 pts
The amount of money you collect after washing x cars at a car wash and asking for
donations is represented by the function y = 8x + 19.
Find the domain of the function and determine whether it is discrete or continuous.

A) x= 8, 9, 10, ...; discrete
B) x=0,1,2,...; discrete
C) x > 0; continuous
D) x > 8; continuous

Answer:

How do you calculate a 35% markup?

Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

Answer:

2.94

Step-by-step explanation:

3.29 - 35/100 = 2.94

The product is expressed as an exponent as 6 x 6 = 6².

Given data:

To write the product 6 x 6 using an exponent, we can express it as 6².

The different Laws of exponents are:

mᵃ×mᵇ = mᵃ⁺ᵇ

mᵃ / mᵇ = mᵃ⁻ᵇ

( mᵃ )ᵇ = mᵃᵇ

mᵃ / nᵃ = ( m / n )ᵃ

m⁰ = 1

m⁻ᵃ = ( 1 / mᵃ )

When we multiply a number by itself, we can represent the repeated multiplication using an exponent. In this case, we have 6 multiplied by 6, which is the same as saying 6 raised to the power of 2 (6²).

The exponent 2 indicates that we are multiplying 6 by itself 2 times.

Hence, the product 6 x 6 can be written as 6².

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Answer:

D

Step-by-step explanation:

multiplying 35.22 with r since this amount is charged for every repair and then adding 62 since that is the additional fee

Answer:

B

Step-by-step explanation:

4:6 = 2:3

2:3 = 2:3

8:12 = 2:3

4:5 = 4:4

Answer:

Step-by-step explanation:

Sum of acute angles equals to 90°

The smallest angle is 15°

Answer:

7/21

Step-by-step explanation:

14/42 is 7/21 in another form

Answer:

6⋅6⋅6⋅6

Explanation: The  exponent refers to the number of times a number is multiplied by itself.  6^4 represents that 6 is being multiplied 4 times.

[tex]6^{4}[/tex]

Base ⇒ 6

Exponent ⇒ 4

Answer:

Thus, the 2nd or lower graph represents the graph of  [tex]y\:=\:4^x[/tex].

The correct graph is also attached below.

Step-by-step explanation:

Given the function

[tex]y\:=\:4^x[/tex]

Let us determine the y-intercept by setting x=0, and then determining the corresponding y-value.

now substituting x = 0 in the function

[tex]y=\:4^0\:[/tex]

Apply the rule: [tex]a^0=1,\:a\ne \:0[/tex]

[tex]y = 1[/tex]

Thus, the y-intercept is (0, 1)

Now, if we closely observe the 2nd graph or lower graph, the y-intercept of the lower graph is (0, 1)

Thus, the 2nd or lower graph represents the graph of  [tex]y\:=\:4^x[/tex].

The correct graph is also attached below.

Answer:

y=1/3x

Step-by-step explanation:

the third one

Answer:

Step-by-step explanation:

180-78=102

180-63=117

180-39=141

Answer:

$4.00

Step-by-step explanation:

(1.06) = 4.24

x= 4.24/1.06

x= $4.00

Answer:

C

Step-by-step explanation:

To find the volume of a cube, raise the value of one side to the third power. 2.5 centimeters to the third power is 15.625, which can also be expressed as the fraction 125/8

Answer: choice C

Step-by-step explanation:

Since V = s^3

And side length = 2.5

V = (2.5)^3

V = 15.625

V = 125/8 cm^3

Answer: 20 pens

5x5=25

5x4=20

Answer:

(3.5, 9.5)

Step-by-step explanation:

μ=6.5

σ=1

Answer:

-7

Step-by-step explanation:

The y intercept of a line is the y value of the line when the x value = 0

In this case we are given the coordinates (0, -7)

so when x =0   y= -7

Therefore, the y- intercept is -7

Answer:

-7

Step-by-step explanation:

The y intercept of a line is the y value of the line when the x value = 0

In this case we are given the coordinates (0, -7)

so when x =0   y= -7

Therefore, the y- intercept is -7

Answer:

65

Step-by-step explanation:

I'm not completely sure if this is correct but this is what I got:

cherry candies: c ; grape candies: g

the ratio of the cherry candies to the grape candies is 3:5 so c/g=3/5 so c=3/5g

when you eat 1 cherry candy and half of the grape candies the ratio becomes (c-1)/(g/2)=7/6

I used substitution so now it becomes (3/5g-1)/(g/2)=7/6 if you solve this g will equal to 60. This number means that there was 60 grape candies originally. With this,  you can solve for the number of cherry candies that you originally had (which is 36 because the ratio is 3:5)

so now you halve the number of grape candies which is 30 and take one off from the cherry candies which is now 35 (cherry:grape = 7:6 = 35:30)

there are now 65 candies altogether

A ratio shows us the number of times a number contains another number. The total number of candies that are left in the bag is 65.

A ratio shows us the number of times a number contains another number.

The ratio of cherry candies to grape candies in a bag is 3:5. Therefore, we can write the ratio of the cherry to grapes as,

Cherry / grapes = 3/5

Multiply both the numerator and the denominator of the ratio with x,

Cherry / grapes = 3x/5x

Therefore, the number of Cherry and grapes in the initial was 3x and 5x, respectively.

Further, it is given that your friend eats half of the grape flavored candies and only one cherry flavored candy, the ratio of cherry to grape candies is 7:6. Therefore, we can write the ratio as,

[tex]\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7}{6}[/tex]

Now, to get the real numbers we can write,

[tex]\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7}{6} \times \dfrac{y}{y}\\\\\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7y}{6y}[/tex]

Thus, we got two equations,

3x - 1 = 7y

5x/2 = 6y

Solving the second equation for x,

5x/2 = 6y

5x = 12y

x = 12y/5

Substitute the value of x in the first equation,

3x - 1 = 7y

3(12y/5) - 1 = 7y

y = 5

Furthermore, the total number of candies can be written as,

6y + 7y

= 6(5) + 7(5)

= 30 + 35

= 65

Hence, the total number of candies that are left in the bag is 65.

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Answer:

$0.04/oz

Step-by-step explanation:

If the question is the unit price per ounce, then is it

$1.28 / 32 oz = $0.04/oz

Answer:

431

Step-by-step explanation:

Answer:

The second term is 12.6

Step-by-step explanation:

Let us solve the question

∵ The recursive formula f(n) = 0.4 ⋅ f(n − 1) + 11

∵ f(1) = 4

→ To find the 2nd term, sunstitute n by 2

∵ n = 2

∴ f(2) = 0.4 · f(2 - 1) + 11

∴ f(2) = 0.4 · f(1) + 11

→ Substitute f(1) by 4

∵ f(2) = 0.4 · 4 + 11

→ Simplify the formula

∴ f(2) = 1.6 + 11

∴ f(2) = 12.6

∴ The second term is 12.6

Step-by-step explanation:

x-3/4=5 1/6

(4x-3)/4=31/6

(4x-3)/2=31/3

12x-9=62

12x=71

X=71/12

Answer:

Chris will receive 4 euros

Answer:

12

Step-by-step explanation:

Answer:

$616 in debt

Step-by-step explanation:

5.5% is equal to 0.055 so you multiply that by $1400 to get $77.

$77 is the interest rate.

You then multiply $77 by 8 months.

Answer:

x = 20°

Step-by-step explanation:

So basically, since the 2 values are on the opposite side of an "x," you just set the 2 values each to each other and solve for x.

6x - 20 = 100

+20 +20

6x = 120

÷6 ÷6

x = 20

Answer:

ermm there should be an other equation right?

Answer:

I think u kept option incorrect but the correct answer is 1/4

Answer: r^8

Step-by-step explanation:

r to the power 16-8

r^8 , third choice