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Tema [17]
3 years ago
5

Write the equation in standard form. Then factor the left side of the equation 2x2=28-X

Mathematics
1 answer:
inn [45]3 years ago
6 0
The correct answer is B) (2x-7)(x+4)=0. If you were to FOIL (First, Outer, Inner, Last) the answer, you would get 2x^2+1x-28=0.
Step by step:
(2x-7)(x+4)=0
FOIL it.
2x^2+8x-7x-28=0
Combine the two middle terms.
2x^2+1x-28=0
Move -28 and 1x over to the right side of the equation.
2x^2=28-x
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7.2 - 3 C equals 2 c - 2
dolphi86 [110]

Answer:

9.2/5= C

Step-by-step explanation:

7.2- 3C = 2C -2     First, add the 2 on the other side to isolate 2C on one side

+2                   +2

9.2 - 3C = 2C       Next, add 3C to the other side        

+3C   +3C

9.2 = 5C                Finally divide both sides by 5 to find the value of C

9.2/5= 5C/5

9.2/5 = C     by dividing by 5 the 5 cancels out and you're left with the C value

5 0
2 years ago
What is the area of rectangle ABCD?
xz_007 [3.2K]

Answer:

240

Step-by-step explanation:

The length is 20 and the width is 12 so you just multiply 20 and 12 together which is 240

5 0
3 years ago
Read 2 more answers
What is the total surface area of the square pyramid?
pochemuha

Answer:

48

Step-by-step explanation:

The square pyramid has exactly the same four triangles.

In order to find the whole surface area, we must find the area of one of the triangles and multiply them by 4.

Surface area of square pyramid = \frac{bh}{2} * 4

Where we know that b = 4 and h = 6.

Substituting into the formula should give us the answer 48.

7 0
3 years ago
What is 3,350,000 in scientific notation?
olganol [36]

Answer:

10^4 or 3.5

Step-by-step explanation:

5 0
3 years ago
Ana walked 13/3 miles write 13/3 as a mixed numder
-BARSIC- [3]
Divide 13 by 3. 
If there is a remainder, keep that as fraction. 
.
4 1/3
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13-12=1
1/3
4 + 1/3 = 4 1/3 
Your answer is 4 1/3
8 0
3 years ago
Read 2 more answers
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