2 years ago

Find the length of WY

Mathematics

1 answer:

DENIUS [597]2 years ago

4 0

Answer:

WY = 180

Step-by-step explanation:

the diagonals of an isosceles trapezoid are congruent , so

ZX = WY , that is

8y - 4 = 7y + 19 ( subtract 7y from both sides )

y - 4 = 19 ( add 4 to both sides )

y = 23

Then

WY = 7y + 19 = 7(23) + 19 = 161 + 19 = 180

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(Pl3ase H3lp M3) -1 3/5 ÷ -2/3

Arlecino [84]

Answer:

2 2/5

Step-by-step explanation:

−1 3/5 / −2/3

=2 2/5

(Decimal: 2.4)

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3 years ago

An oarsman can row his boat 3 mph in still water. He sets out on the Illinois River, which flows at 5 mph. We are interested in

Artyom0805 [142]

Answer:

The speed from the observer is 8 mph.

Step-by-step explanation:

When the boat is going downstream with full force, its speed will be the one the oarsman can row on still water added by the flow of the river. In this case he can row the boat at speed of 3 mph, while the stream is 5 mph, so the speed from the observer standpoint is:

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3 years ago

Evaluate the function at x=-1

Oksana_A [137]

Answer:

y=0 when x=-1

Step-by-step explanation:

We look at the chart to see that there is a value for y when x equals negative 1.

According to the chart, y equals 0 when x=-1.

Therefore, the answer is 0.

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3 years ago

Which expression is equivalent to

lapo4ka [179]

The last one
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2 years ago

4^(x-1)+4^(x)+4^(x-1)=84

creativ13 [48]

Answer:

7.66

Step-by-step explanation:

Just open the parenthesis.

4x-4+4x+4x-4=84

Now simplify and solve

12x-8=84

12x=92

x= 7.66

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3 years ago