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Anit [1.1K]
3 years ago
11

Sam spends $13.50 on baseball cards. The tax is 6%. What is his total cost?

Mathematics
1 answer:
Alexandra [31]3 years ago
5 0

Answer:

13.50+0.81= $14.31

Step-by-step explanation:

Hope this helps!

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observa con atencion los siguientes desarrollos planos y encierra con cual de ellos se puede armar cada cuerpo uno de ellos tien
Viefleur [7K]

Answer:

Can you give it in a english

Step-by-step explanation:

7 0
3 years ago
Find the root(s) of f (x) = (x + 5)3(x - 9)2(x + 1). -5 with multiplicity 3 5 with multiplicity 3 -9
faust18 [17]

Answer:

  -5, multiplicity 3; +9, multiplicity 2; -1

Step-by-step explanation:

The roots of f(x) are those values of x that make the factors be zero. For a factor of x-a, the root is x=a, because a-a=0. If the factor appears n times, then the root has multiplicity n.

f(x) = (x+5)^3(x-9)^2(x+1) has roots ...

  • -5 with multiplicity 3
  • +9 with multiplicity 2
  • -1
4 0
2 years ago
Please help Explanation will be appreciated thanks,
Genrish500 [490]

Answer: A; 6.3%

Step-by-step explanation:

Problem 1

For the first problem, we first want to find y so that we can plug it into the expression.

We can use elimination method for the system of equations to solve.

3x+3y=21

3x-y=5

We subtract both equations to eliminate x.

4y=16                                        [divide both sides by 4]

y=4

Now that we know y, we can plug it into the expression.

\frac{4}{2} -3                                         [divide]

2-3                                         [subtract]

-1

We know that the answer is A.

--------------------------------------------------------------------------------------------------------

Problem 2

For the second problem, we need to know how to calculate percent error. The formula for precent error is \frac{|measured-exact|}{exact} *100%. We know that the exact value is 80 because the buyer was supposed to given 80. 75 is the measured value because that was what the buyer was given.

\frac{|75-80|}{80} *100%                               [subtract]

\frac{|-5|}{80} *100%                                   [solve absolue value]

\frac{5}{80} *100%                                     [divide]

0.0625*100%                               [multiply]

6.25

Since the problem said to round to one decimal place, we know that the answer is 6.3%.

4 0
2 years ago
What is the slope of the line that is perpendicular to the line whose equation is 2x+y=4??
zmey [24]

Answer:

The slope would be 1/2

Step-by-step explanation:

y= mx +b

m= slope

perpendicular lines have slopes that are multiplied in order to get -1

<em>these are important</em>

<em></em>

2x + y = 4

<u><em>subtract 2x</em></u>

y=-2x +4

your slope is -2

-2 * ? = -1

? = -1/-2

? = 1/2

6 0
3 years ago
Which of the following equations can be used to find the length of EF in the<br> triangle below?
lbvjy [14]

Answer:

first choice is the correct answer

5 0
3 years ago
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