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zhenek [66]
3 years ago
5

Which expression completes the equation? 5+7•4 =

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0
5+7*4=48
60÷2+18=48
Answer is D
You might be interested in
Quadrilateral WXYZ has vertices W(-4,-3), X(0,-1). Y(6,-2), Z(2,-4). Using properties of diagonals prove that WXYZ is a parallel
yanalaym [24]

Answer:

The diagonals are bisectors of each other and meet at  (1, -5/2) but are not congruent, so WXYZ is a parallelogram and not a rectangle

Step-by-step explanation:

for parallelograms.

the diagonals intersect at the midpoints

W                             X

Z                             Y

Diagonals are  WY  and  XZ

WY :   (-4, -3) to  (6, -2)

midpoint is   [(-4 + 6)/2  ,  (-3 - 2)/2 ] = ( 1, -5/2 )

XZ :   (0, -1)  to  (2, -4)

midpoint is  [ (0 + 2)/2 ,  (-1 + -4)/2 ]  = (1, -5/2)

The diagonals are bisectors of eachother.

Next show that these diagonals are not congruent.

length of  WY  =  root (  (-4 - 6)^2  +  (-3 - (-2))^2 )

WY = root ( 100  +  1)

WY = root(101)

length of XZ  =  root (  (0 - 2)^2  +  ( -1 - -4)^2 )

XZ =  root (4  +  9) = root (13)

we see that  WY  is not equal to XZ

...

so  ..  quadrilateral WXYZ is a parallelogram but not a rectangle.

8 0
3 years ago
Which number line shows the solutions to x<5?
mamaluj [8]

Answer:

A.

Step-by-step explanation:

3 0
3 years ago
If a triangle has a 50° angle, what is the sum of the other two angles?
12345 [234]

Answer:

130

All of the angles on a triangle add up to 180 degrees.

8 0
3 years ago
The numerator of a fraction is 6 more than the denominator. If 5 is subtracted from the denominator, the fraction becomes 3/2. F
sattari [20]

Answer:

The fraction is 32/27

Step-by-step explanation:

let the fraction be x/y

x - y = 6

x = 6 + y ••••••(i)

This is according to the first sentence

Furthermore;

x/y-5 = 3/2

2x = 3(y-5) •••••(ii)

Substitute

2(6 + y) = 3y - 15

12 + 2y = 3y - 15

3y -2y = 12 + 15

y = 27

x = 6 + y

x = 6 + 27 = 33

6 0
3 years ago
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score
dimaraw [331]

Answer:

80.

Step-by-step explanation:

His total score for 5 tests = 5 * 77.4 = 387 .

Sp his score for fifth test

= 387 - (88 + 77 + 70 + 72)

= 387 - 307

= 80.

8 0
3 years ago
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