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andrey2020 [161]
3 years ago
11

Plz help me this is 7th grade math

Mathematics
1 answer:
pishuonlain [190]3 years ago
5 0

Answer:

D=52

E=77

F=61

Step-by-step explanation:

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Help me with this please ​
Helen [10]

Answer:

Inverse

Step-by-step explanation:

5 0
3 years ago
I don't understand this math problem need help plz!
9966 [12]

Answer:

A' (-4, - 7), B' (-5, -4), C' (-4, -3), D' (-3, -4)

Step-by-step explanation:

When rotating about the origin at an angle of 90° in the counterclockwise direction, the given values of (x, y) are interchanged with y also taking a negative sign. That is ;

(x, y) - - - -> (-y, x)

Therefore, in the question above ;

Translation = (x-2, y+3)

A =(-5, 1) = (-5 - 2, 1 + 3) = (-7, 4) - - -> A' = (-4, - 7)

B =(-2, 2) = (-2 - 2, 2 + 3) =(-4, 5) - - -> B' = (-5, -4)

C =(-1, 1) = (-1 - 2, 1 + 3) = (-3, 4) - - -> C' = (-4, -3)

D =(-2, 0) = (-2 - 2, 0+3) =(-4, 3) - - -> D' = (-3, -4)

5 0
4 years ago
2x - 5y = 2<br> y= 2x + 6
tresset_1 [31]
Point form(-4,-2) or equation form x=-4,y=-2
7 0
3 years ago
How many expressions are equivalent to 3/4
Elanso [62]

Answer:

9/12 and 6/8

Step-by-step explanation:

3 0
3 years ago
The length of a rectangle is three more than twice it’s width. The perimeter of the rectangle is 246 cm. Write an equation to fi
myrzilka [38]

Answer:

83 cm

Step-by-step explanation:

Let the length of the rectangle be L cm and the width be W cm.

L= 2W +3 -----(1)

Perimeter of rectangle= 2(length) +2(width)

2L +2W= 246 -----(2)

Substitute (1) into (2):

2(2W +3) +2W= 246

Expand:

4W +6 +2W= 246

Simplify:

6W +6= 246

Divide both sides by 6:

W +1= 41

W= 41 -1

W= 40

∴ width of the rectangle is 40cm.

Substitute value of W into (1):

L= 2(40).+3

L= 80 +3

L= 83

Thus, the length of the rectangle is 83 cm.

8 0
3 years ago
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