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PilotLPTM [1.2K]
3 years ago
12

Expand and combine like terms. (2x3 + 4x5)2 =

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

52

Step-by-step explanation:

(2x3 = 6

4x5 = 20)

(6+20) = (26)

(26)2 = 52

=52

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Sylvia enlarged a photo to make a 24 x 32 inch poster using the dilation DQ,4. What are the dimensions, in inches, of the origin
RSB [31]

Answer:

6 × 8

Step-by-step explanation:

Since the dilation factor is 4, and the image was ENLARGED, that means the original photo was smaller.  Smaller by a factor of 4.

So, we take the new dimensions (24x32) and we divide each side by the dilation factor of 4:

(24/4) x (32/4) = 6 x 8

It couldn't be the first answer choice (3x8) because  that doesn't maintain the ratio of the enlarge picture.  The other possible answers do match the right ratio... but only 6x8 is scaled by a factor of 4.

3 0
3 years ago
Find the value of k if (x-3) is a factor of P(x)=2x3-5x2+3x+k
blsea [12.9K]

Answer:

k = -18

Step-by-step explanation:

If x-3 is a factor, what this means is that if we substitute;

x = 3 into the equation, we should get 0

This is from the factor theorem

Thus ;

P(3) = 0 = 2(3)^3 -5(3)^2 + 3(3) + k

0 = 54 - 45 + 9 + k

k + 18 = 0

k = -18

4 0
3 years ago
On the left, model 4 + (-6). On the right, model 4 - 6.
insens350 [35]

Answer:

On the left because their both positive and the other one is not and also the left one is on the left y axil

5 0
3 years ago
Tim spent $37.45 on groceries. On the way home, he wants to stop and pay cash for gas at $3.35 per gallon. If he started with $6
dalvyx [7]

Answer:

6.7

Step-by-step explanation:

60$-37.45=22.55

22.55/3.35=6.731

Which rounds to 6.7

5 0
3 years ago
What is the value of x ?<br> A. 55 <br> B. 50<br> C. 160<br> D. 20
lakkis [162]
The correct option would be C
6 0
3 years ago
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