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yawa3891 [41]
3 years ago
8

The product of a+3 and -2a^2+15a+6 is -2a^3+xa^2+51a+18. What is the value of x? Is it 8 ,9,12 or15?

Mathematics
1 answer:
Serggg [28]3 years ago
3 0

Answer:

x = 9 ⇒ second answer

Step-by-step explanation:

∵ (a + 3)(-2a² + 15a + 6) =

  -2a³ + 15a² + 6a - 6a² + 45a + 18 =

  -2a³ + 9a² + 51a + 18

∵ (a + 3)(-2a² + 15a + 6) = -2a³ + xa² + 51a + 18

∴ -2a³ + 9a² + 51a + 18 = -2a³ + xa² + 51a + 18

∴ x = 9

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∠U=90°, TS = 73, SU = 55, and UT = 48.
ololo11 [35]

Answer:

sin S =  is the ratio found.

Step-by-step explanation:

It is given that m∠U = 90°

TS is the hypotenuse = 73 units

UT is the adjacent side of the right angle = 48 units

SU is the base of the triangle = 55 units

Now we have to find the ratio as,

sin S =

sin S =

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sin S =

So the ratio was found.

disclaimer this is not my work it is youaskianswer's work.

6 0
3 years ago
A house costs $600 more than 12 times the lot on which it was built. If the lot cost x dollars, what did the house cost?
Artemon [7]
Your answer is $600+12x
8 0
3 years ago
Read 2 more answers
Find all the factors of 18.<br> A) 2, 9<br> B) 1, 2, 3, 6, 9, 18<br> C) 1, 2, 3, 4, 6, 8, 9, 18
DIA [1.3K]

Answer:

B)1, 2, 3, 6, 9, 18

Step-by-step explanation:

1×18

2×9

3×6

HOPE IT HELPS YOU

5 0
2 years ago
What is the slope of this line?
Bogdan [553]

Answer:

Slope = 6

Step-by-step explanation:

Reading your description carefully, the equation of line has been given to be

When we compare this with the standard form of a straight line

We immediately see that the slope or gradient m = 6.

Alternatively, when we consider the coordinates of the points mentioned, we have

(1, 5)    ;     (0, -1)     ;     (-1, -7)

We can take any two points out of these three and calculate the slope using the formula

For example, let us consider the points (1, 5) and (-1, -7)

Here x₁ = 1; x₂ = -1 and y₁ = 5; y₂ = -7

Plugging the numbers in the above formula, we have

This agrees with what we calculated directly from the equation of the line!

Hence, slope of the line on the graph = 6

6 0
4 years ago
Can someone please help me !!
jok3333 [9.3K]
The alternate interior angle with angle 3 is angle 6

Hope this helps :)
7 0
4 years ago
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