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Art [367]
4 years ago
12

Jhonny has read 115 pages of a 305-page book. He reads 10 pages each day. How many days will it take to finish?

Mathematics
1 answer:
WINSTONCH [101]4 years ago
7 0

Answer:

It will take 19 days until johnny finishes reading the book.

Step-by-step explanation:

305=115+10x

190=10x

x=19

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Peter has 100 dollars. His mom gives him x dollars more. Write an expression to represent the situation.
denis23 [38]

Answer:

100+x

Step-by-step explanation:

Peter starts out with 100 dollars and then gets X more meaning we have to add X to what he originally had and that looks like this 100+x

I hope this helps and please don't hesitate to ask if there is anything still unclear!

5 0
3 years ago
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Write an equation for the cubic polynomial function whose graph has zeroes at 2, 3, and 5.
TiliK225 [7]

we know that

For a polynomial, if x=a is a zero of the function, then (x−a) is a factor of the function. The term multiplicity, refers to the number of times that its associated factor appears in the polynomial.

So

In this problem

If the cubic polynomial function has zeroes at 2, 3, and 5

then

the factors are

(x-2)\\ (x-3)\\ (x-5)

Part a) Can any of the roots have multiplicity?

The answer is No

If a cubic polynomial function has three different zeroes

then

the multiplicity of each factor is one

For instance, the cubic polynomial function has the zeroes

x=2\\ x=3\\ x=5

each occurring once.

Part b) How can you find a function that has these roots?

To find the cubic polynomial function multiply the factors and equate to zero

so

(x-2)*(x-3)*(x-5)=0\\ (x^{2} -3x-2x+6)*(x-5)=0\\ (x^{2} -5x+6)*(x-5)=0\\ x^{3} -5x^{2} -5x^{2} +25x+6x-30=0\\ x^{3}-10x^{2} +31x-30=0

therefore

the answer Part b) is

the cubic polynomial function is equal to

x^{3}-10x^{2} +31x-30=0

7 0
3 years ago
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Please help me with this I need the right answer
Grace [21]

Answer:

B is the correct answer.

Step-by-step explanation:

graph attached below, with red as the parent function (f(x)=3^x) and blue as the change (f(x)=3^x-8).

8 0
3 years ago
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55. A triangle has two angles measuring 46 and 14. Determine the measure of the third angle.
Step2247 [10]

Answer:

1. 180-(46+14)=120

2.46+14+120=180

Step-by-step explanation:

4 0
3 years ago
Mrs. Harrison borrows $600 to pay for a new phone. the simple intrest on the loan is 9% for one year
laila [671]

Answer:

$600

Step-by-step explanation:

8 0
4 years ago
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