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garik1379 [7]
3 years ago
13

Figure ABCD is a trapezoid. Find

Mathematics
2 answers:
amid [387]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

The mid segment is half the sum of the parallel bases, that is

\frac{1}{2} (2x + 3x + 10) = 15 ( multiply both sides by 2 )

5x + 10 = 30 ( subtract 10 from both sides )

5x = 20 ( divide both sides by 5 )

x = 4

Fittoniya [83]3 years ago
7 0

Answer

d

Step-by-step explanation:

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For what value(s) of k is the trinomial x² + kx - 24 factorable?
Elza [17]

Answer:

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4 0
3 years ago
Point M (-3, 5) is translated using this rule. (x, y) ----> (x - 1, y) What are the coordinates of M'?
Nuetrik [128]

Answer:

The coordinates of point M' are M'(x,y) = (-4, 5).

Step-by-step explanation:

According to the statement, we have the following translation rule:

M'(x,y) = M(x,y) + (-1, 0) (1)

Where:

M(x,y) - Original point.

M'(x,y) - Translated point.

(-1, 0) - Translation vector.

If we know that M(x,y) = (-3, 5), then the coordinates of the point M' are:

M'(x,y) = (-3,5) + (-1,0)

M'(x,y) = (-4, 5)

The coordinates of point M' are M'(x,y) = (-4, 5).

5 0
3 years ago
If DB = 36 and AC = 3x - 3, what is the value of x?
algol13

Answer:

A.) 13

Step-by-step explanation:

Since DB =36, and AC is the same line, then AC = 36. The new equation is 36 = 3x - 3. Do inverse operation. Add 3 to both sides of the equation: 36+3=39 & -3+3=0. New equation is 39=3x. Finally divide. 39/3= 13.

3 0
3 years ago
Help ? Plz forgot the steps (3z+9)(z-4)
Dafna11 [192]
It's a binomial times a binomial, so you FOIL
First multiply the First numbers
3z*z = 3z(^2)
Then multiply Outers:
3z* -4  = -12z 
Nest, Inners:
9*z = 9z
Finally, the Lasts: 
-4*9 = -36
Then, throw it all together in descending order, starting with the variable of highest degree to lowest:
3z^2 - 12z + 9z - 36
Last of all, simplify coefficients with like terms and you're good to go:
3z^2 - 3z - 36
Hope this helps!
3 0
4 years ago
Tom has two pieces of wood to build a birdhouse. one piece is 3/4 yard long. The other piece is 4/8 yard long. Tom says both pie
astra-53 [7]
3/4 in decimal form is 0.75
4/8, when simplified, is 1/2 which is 0.5 in decimal form. 
4 0
3 years ago
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