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tiny-mole [99]
3 years ago
13

Ethan buys a book for $18. The sales tax rate is 8%. How much will he pay in total?

Mathematics
2 answers:
Alex3 years ago
6 0

Answer:

19.44

Step-by-step explanation:

8x100= 0.08

0.08 x 18 = 1.44

18+1.44= 19.44

Juli2301 [7.4K]3 years ago
5 0

Answer:

$19.44

Step-by-step explanation:

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A polynomial function has a root of –3 with multiplicity 2, a root of 0 with multiplicity 1, a root of 1 with multiplicity 1, an
Ratling [72]

Answer:

The first graph picture

Step-by-step explanation:

A polynomials is an equation with many terms whose leading term is the highest exponent known as degree. The degree or exponent tells how many roots exist. These roots are the x-intercepts.

This polynomial has roots -3, 0, 1, and 3. This means the graph must touch or cross through the x-axis at these x-values. What determines if it crosses the x-axis or the simple touch it and bounce back? The even or odd multiplicity - how many times the root occurs.

In this polynomial:

Root -3 has even multiplicity of 2 so it only touches and does not cross through.

Root 0 has odd multiplicity of 1 so crosses through.

Root 1 has odd multiplicity of 1 so crosses through.

Root 3 has even multiplicity of 3 so it only touches and does not cross through.

Knowing this, only the first and second graphs are possible answers.

Lastly, what determines the facing of the graph (up or down) is the leading coefficient. If positive, the graph ends point up. If negative, the graph ends point down. All even degree graphs will have this shape.

Only graph 1 matches the features of this polynomial.

8 0
3 years ago
Read 2 more answers
You received your first credit card with a spending limit of $2,000 at 18.9% interest. You decide you need to upgrade your sound
kari74 [83]

Answer:

It will take approximately 25 months

Step-by-step explanation:

The amount owed on the credit card statement, P = $2,000

The interest rate of the credit on the credit card, r = 18.9%

The minimum monthly payment made, M = $100

The equal monthly installment formula is given as follows;

M = \dfrac{P \cdot \left(\dfrac{r}{12} \right) \cdot \left(1+\dfrac{r}{12} \right)^n }{\left(1+\dfrac{r}{12} \right)^n - 1}

Therefore, we get;

100 = \dfrac{2,000 \cdot \left(\dfrac{0.189}{12} \right) \cdot \left(1+\dfrac{0.189}{12} \right)^n }{\left(1+\dfrac{0.189}{12} \right)^n - 1} = \dfrac{2,000 \times\left(0.01575 \right) \cdot \left(1.01575 \right)^n }{\left(1.01575\right)^n - 1}

100×1.01575ⁿ - 100 = 31.50×1.01575ⁿ

100×1.01575ⁿ - 31.50×1.01575ⁿ = 100

68.5×1.01575ⁿ = 100

1.01575ⁿ = 100/68.5

n = ln(100/68.5)/ln(1.01575) ≈ 24.21 (which is approximately 25 months, by rounding up to the nearest whole number)

Therefore, it will take approximately 25 months to pay off the credit card debt

8 0
3 years ago
For how many values of x between -5 and 5 does f(x) = 1
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Step-by-step explanation:

3 0
2 years ago
Find two numbers if their ratio is 2:5 and the difference is 111.
shusha [124]
2x=5y
x-y=111

x=111+y

so 2x=5y is
2(111+y)=5y
222+2y=5y
2y-5y=-222
-3y=-222 (divide by -3 both sides of the equation)
y=-222/(-3)= 74

x=111+y = 111 +74 = 185

so the first number is 185 and the second is 74

7 0
3 years ago
Read 2 more answers
Find the difference in the ages of two people if one was born in 27 B.C. and the other was born in 16 A.D.
Stells [14]

Answer:

43 years

Step-by-step explanation:

So its kind of an absolute value problem so you have to look at it like the distance from 0 A.D.

27+16=42

5 0
4 years ago
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