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Kay [80]
3 years ago
12

I need the answer as quickly as possible, please.

Mathematics
2 answers:
Luda [366]3 years ago
7 0
Your Answer is : A.
x^2 + 10x + 25
Brilliant_brown [7]3 years ago
4 0

Answer:

×^2-10× + 25

I'm not sure

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How do i check 11z-5=9z+7
NARA [144]

Answer:

z= 6

Step-by-step explanation:

You check it by plugging the value, z, into the equation.

11(6)-5=9(6)+7

61=61

3 0
3 years ago
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In Ryan's kitchen, there are 15 black tiles and 10 white tiles. What is the ratio (in the simplest form) of white tiles to black
zheka24 [161]

Answer: 10:15 Simplified: 2:3

Step-by-step explanation:

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3 years ago
A circle passes through the point (0,0.5). What it’s radius
belka [17]

Answer: The radius of this circle is 0.5

Step-by-step explanation:

We have a circle that passes through the point (0, 0.5)

We do not know the center of the circle, so we have infinite possible radius to answer this, but let's suppose that the center of the circle is in the point (0, 0)

For a circle centered in the origin, we have the equation:

x^2 + y^2 = r^2

Where r is the radius.

Here we have that x = 0 and y = 0.5

then:

0^2 + (0.5)^2 = r^2

0.5^2 = r^2

r = 0.5

The radius of this circle is 0.5

6 0
3 years ago
Venn Diagrams contain how many sets, depicted by circles?
Nadusha1986 [10]

Answer:

4

Step-by-step explanation:

8 0
3 years ago
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Oil consumption in China grew exponentially from 8.938 million barrels per day in 2010 to 10.480 million barrels per day in 2013
Afina-wow [57]

Let the year represents x axis and consumption represents y axis.

Since 2010 is the initial year, x=0

and 2013 is third year , so x=3

Co-ordinates are (0,8.938)(3,10.480)

Exponential formula is y=ab^{x}

Putting the value of x in the above formula from 1st coordinate,

8.938=ab^{0}

As b^{0} = 1

this gives a= 8.938

Now using the 2nd coordinate

10.480=ab^{3}

putting the value of a in it we have

10.480=8.938b^{3}

taking cube roots on both sides we get

b= 1.05448

Now putting the values of a and b in the exponential formula-

y=8.938(1.05448)^{x}

In the year 2028, x=28

so,

y=8.938(1.05448)^{28}

y= 39.474

Hence oil consumption per day in 2028 will be 39.474 million barrels.

5 0
3 years ago
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