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3 years ago

9/18 + 1/3 Show all work

Mathematics

2 answers:

balu736 [363]3 years ago

7 0

Answer:

5/6

5/6 Is the simplified answer the unsimplified answer is 15/18

Roman55 [17]3 years ago

6 0

Answer:

5/6

Sorry I couldn't go into more detail

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What is f(x) = –4x2 + 24x + 13 written in vertex form? f(x) = –4(x – 6)2 + 23 f(x) = –4(x – 6)2 + 7 f(x) = –4(x – 3)2 + 4 f(x) =

nika2105 [10]

We have that
f(x) = –4x² + 24x + 13

we know that

The vertex form for a parabola that opens up or down is:

f(x) = a(x - h)^2 + k

in the given equation, a=-4, therefore we add zero to the original equation in the form of 4h²−4h²
f(x) = –4x² + 24x + 4h²−4h² +13
Factor 4 out of the first 3 terms and group them
f(x) = –4*(x² -6x +h²) +4h² +13
We can find the value of h by setting the middle term equal to -2hx
−2hx=−6x
h=3 and 4h²=36
f(x) = –4*(x² -6x +9) +36 +13

we know that the term (x² -6x +9) is equals to------> (x-3)²
so
f(x) = –4*(x-3)² +49

the answer is
f(x) = –4*(x-3)² +49

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3 years ago

What is the perimeter of quadrilateral dobc? 14 units 16 units 22 units 28 units?

Anna007 [38]

I know its 28 units i had it on a test

6 0

3 years ago

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How can you model how to find the answer to 55 divided by 5 to young child? Explain.

docker41 [41]

Answer

55 divided by 5 = 11

Step by step explanation

Assume that we have 55 balls, we have to group 5 balls in each group.

How many group can we form?

The number of groups = 55/5 = 11

Use can see it in the picture.

We have to explain with pictorial method.

I have attached the figure.

Hope this will helpful.

Thank you.

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2 years ago

Normal Samantha is using ribbon to make bows to be sold at a school fundraiser. She has 83.2 meters of ribbon. She needs 1.28 me

adelina 88 [10]

Answer:

83.2 meters ÷ 1.28 meters = 65 bows

4 0

2 years ago

Which expression has the same GCF as 15x2 - 21x?

Mice21 [21]

Answer:

$15x^2 +21 x$

Step-by-step explanation:

We have the following expression:

$15x^2 -21 x$

We can find the GCF with the following steps.

1. Find the GCF for the numerical part 15 and -21

The factors for 15 are : 1,3,5,15

The factors for -21 are -21,-7,-3,-1,1,3,7,21

And the common factors are 1,3

The GCF for the numerical part is 3*1 = 3

2. Find the GCF for the variable

The factors of x^2 are : x*x

The factors of x are: x

The common factors are x for this case, so then the GCF for the variable part is x

3. Multiply the two results from steps 1 and 2

GCf= 3*x = 3x

If we consider the new expression:

$15x^2 +21x$

We can find the GCF with the following steps.

1. Find the GCF for the numerical part 15 and -21

The factors for 15 are : 1,3,5,15

The factors for -21 are 1,3,7,21

And the common factors are 1,3

The GCF for the numerical part is 3*1 = 3

2. Find the GCF for the variable

The factors of x^2 are : x*x

The factors of x are: x

The common factors are x for this case, so then the GCF for the variable part is x

3. Multiply the two results from steps 1 and 2

GCf= 3*x = 3x

And as we can see both GCF are equal. So then we satisfy the condition required.

5 0

2 years ago

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