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shtirl [24]
3 years ago
5

X² + 2x - 3 = 0

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Step-by-step explanation:

x²+2x-3=0

(x²+3x)-(x-3)=0

x(x+3)-1(x+3)=0

(x-1)(x+3)=0

x=1 or x=-3

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A cylinder shaped juice pitcher has a diameter of 12 cm and a height of 25 cm. What volume of juice does the pitcher contain whe
Andreas93 [3]

Answer:

706.50 cubic cm.

Step-by-step explanation:

Given that a cylinder shaped juice pitcher has a diameter of 12 cm and a height of 25 cm.

We are to find out the t volume of juice does the pitcher contain when it is 25% full.  3.14 is to be used for pi.

Volume of the cylinder = \pi r^2 h\\ \\=3.14 *6^2*25\\=2826

When it is 25% full the volume would be 1/4 of the full volume

=\frac{2826}{4} =706.50 cubic cm

So volume when 25% full is

706.50 cubic cm.

4 0
4 years ago
How do i solve 8x + 15=63?
larisa [96]

Answer:   x = 6

Step-by-step explanation:

8X + 15 = 63

     -15.      -15

8x = 48

8x/8 = 48/8

x = 6

7 0
4 years ago
there are 20 ounces of water in a glass. someone drinks 55%of the water. how many ounces of water is left?
dimulka [17.4K]
Given:
20 ounces of water
someone finishes 55% of water
What is left?

20 × 0.55    (55% = \frac{55}{100} = 0.55)
11 

20 - 11 = 9
There are 9 ounces of water left

5 0
3 years ago
Does the graph represent a function?
Umnica [9.8K]
No it doesn’t not represent a function
8 0
3 years ago
If g(x)=3x-11, what is x is g(x)=289
Liula [17]

Answer:x=100

Step-by-step explanation:

Since you know that g(x)=3x-11 all you have to do is substitute that into g(x)=289. So you get 3x-11=289. To get x you have to add 11 on both sides.

3x-11=289

+11 +11

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

3x = 300

Divide 3 on both sides to get x by itself

3x =300

---- -------

3 3

x=100

8 0
3 years ago
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