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larisa [96]
3 years ago
6

What is 56/15 simplified?

Mathematics
2 answers:
Natali [406]3 years ago
4 0
It is simplified. You can't simplify farther.
N76 [4]3 years ago
4 0

3.7333333333333333333333333333333

Even though it would equal that, there would be a horizontal line over the three behind the seven. So that you wouldn't have to write all those threes.

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Find the vertex form of y=-x^2-10x-21
luda_lava [24]

Answer:

\large\boxed{y=-(x+5)^2+4}

Step-by-step explanation:

\text{The vertex form of an quadratic equation}\\\\f(x)=ax^2+bx+c=a(x-h)^2+k\\\\h=\dfrac{-b}{2a}\\\\k=f(k)=\dfrac{-(b^2-4ac)}{4a}\\=================================

\text{We have:}\\\\y=-x^2-10x-21\\\\a=-1,\ b=-10,\ c=-21\\\\h=\dfrac{-(-10)}{2(-1)}=\dfrac{10}{-2}=-5\\\\k=f(-5)=-(-5)^2-10(-5)-21=-25+50-21=4\\\\y=-(x-(-5))^2+4=-(x+5)^2+4

5 0
3 years ago
What is 5/7 minus 1/2 equal to in like units
WARRIOR [948]

Answer:

3/14

Step-by-step explanation:

5/7 minus 1/2 is 5/7 - 1/2

5/7 and 1/2 are both called proper fractions. 5 and 1 in each fraction are called the numerator while 7 and 2 are called denominators

5/7 - 1/2

Step one

Find the lowest common multiple (LCM) of the denominators of each fractions

Multiples of 7

7 x 1 = 7

7 x 2 = 14

7 x 3 = 21

Multiples of 2

2 x 1 = 2

2 x 2 = 4

2 x 3 = 6

2 x 4 = 8

2 x 5 = 10

2 x 6 = 12

2 x 7 = 14

The lowest common multiple of 2 and 7 is 14

Step 2

The LCM of 2 and 7 becomes the common denominator for both fractions.

14/7 = 2

14/2 = 7

5/7 - 1/2 = [2(5) - 7(1)]/14 = (10 - 7)/14

= 3/14

8 0
3 years ago
What is the collision of the line that passes through the points (-2,3) and (2,7)
Nina [5.8K]
I don't know, I just need points 

lol
8 0
4 years ago
Bob took his family out to lunch. He bought 3 hot dogs and 2 hamburgers for $11. If the guy in front of him bought 2 hot dogs an
Dafna11 [192]

Answer:

Hotdog: $1.50

Hamburger: $3.25

Step-by-step explanation:

<em>You write down the 2 equations based off of the information as I did:</em>

Let x = cost of a hotdog

Let y = cost of a hamburger

<em>and so:</em>

<em />

3x + 2y = 11

2x + 4y = 16

<em />

<em>Now, we need to find x and y:</em>

<em>We will make both equations equal to y to compare them to each other.</em>

2y = 11 - 3x

y = 5.5 - 1.5x

4y = 16 - 2x

y = 4 - 0.5x

4 - 0.5x = 5.5 - 1.5x

x = $1.5

<em>Now plugging in x into the equation:</em>

2(1.5) + 4y = 16

3 + 4y = 16

4y = 13

y = $3.25

And so hotdog = $1.5 and hamburger = $3.25

<em />

<em />

6 0
3 years ago
Calculate the density of a 500g rectangular block with the the following dimensions
SCORPION-xisa [38]

length=8 cm, width=6 cm, height=5 cm. (answer = 2.1 g/cm3)

7 0
3 years ago
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