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vredina [299]
3 years ago
11

Which expression is equivalent to 3(1 + x) + 7? Ax+-7 B) X + 10C)3×+7D)3×+10​

Mathematics
2 answers:
son4ous [18]3 years ago
7 0

Answer:

D) 3x+10

Step-by-step explanation:

3(1 + x) + 7 \\  = 3 + 3x + 7 \\  =3x + 10

AlladinOne [14]3 years ago
6 0

Answer: D

Step-by-step explanation:

3(1+x)+7 = 3+3x+7 =3x+10

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How to solve (g+2)(6g-3)
sergeinik [125]

Answer: 6g^2+9g-6

Step-by-step explanation:(g+2)(6g−3)

=(g+2)(6g+−3)

=(g)(6g)+(g)(−3)+(2)(6g)+(2)(−3)

=6g^2−3g+12g−6

=6g^2+9g−6

4 0
3 years ago
Which of the following correctly explains why 2 is an acceptable answer to √4?
Tcecarenko [31]

Answer:

D for ding dong

Step-by-step explanation:

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7 0
3 years ago
Rectangle ABCD and right triangle DCE have the same area. They are joined to form a trapezoid, as shown. What is DE?
vfiekz [6]
Since the areas are the same  (5 x 6 = 30 units), and the height of the triangle (DC) is 5 so the length of the triangle must be 12.  (1/2 of  5 x 12 is also 30)

So now we use the Pythagorean theorem

a² + b² = c²   we have 5² + 12² = c²  or 25 + 144 = c²  or 169 = c²

The square root of 169 is 13 so side DE is 13 units.
6 0
4 years ago
the width of a rectangle is half as long as the length. the rectangle has a area of 32 square feet.what are the length and width
kari74 [83]
The answer to this question would be length is 4 and the width is 8. 
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7 0
3 years ago
Question 5
agasfer [191]

Step-by-step explanation:

Given

g(x) = - 2x² + 3x

g(3) = - 2 * 3² + 3 *3

= -2 * 9 + 9

= -18 + 9

= -9

5 0
3 years ago
Read 2 more answers
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