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3 years ago

Complete the statement using always, sometimes, or never. A trapezoid is _____ a rectangle.

Mathematics

2 answers:

Basile [38]3 years ago

6 0

I think the answer would be Never cause a trapezoid cannot be a rectangle

grigory [225]3 years ago

3 0

Answer:

Never

Step-by-step explanation:

Via the definition of a trapezoid, it can never have two sets of parallel lines.

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Jeff is traveling from his home in Salem at a constant rate of 50 mph. He has already traveled 20 miles. His sister Jennifer is

leonid [27]

Answer

Find out the how long will it take Jennifer to catch Jeff.

To prove

Formula

$Speed = \frac{Distance}{Time}$

let us assume that the distance be denoted by d .

let us assume that the time be denoted by t .

As given

Jeff is traveling from his home in Salem at a constant rate of 50 mph.

He has already traveled 20 miles .

As put the values in the formula

$50 = \frac{d + 20}{t}$

50t - 20 = d

(As jeff already travelled 20 miles distance.)

As given

His sister Jennifer is making the same trip but at a constant rate of 60 mph and has only traveled 5 miles.

than put the value in the formula

$60 = \frac{d +5}{t}$

than the equation becomes

60t -5 = d

Than the two equation becomes

50t - 20 = d and 60t -5 = d

compare both the equation

50t - 20 = 60t -5

50t - 60t = 20 -5

- 10t = 15

$t = \frac{-15}{10}$

t = -1.5

(As time cannot be negative.)

t = 1.5 hours

1.5 hours will it take Jennifer to catch Jeff.

Option (A) is correct .

6 0

4 years ago

Two planes start from the same point and fly in opposite directions. The first plane is flying 60 mph slower than the second pla

Naddik [55]

Answer:

The first plane is moving at 295 mph and the second plane is moving at 355mph.

Step-by-step explanation:

In order to find the speed of each plane we first need to know the relative speed between them, since they are flying in oposite directions their relative speed is the sum of their individual speeds. In this case the speed of the first plane will be "x" and the second plane will be "y". So we have:

x = y - 60

relative speed = x + y = (y - 60) + y = 2*y - 60

We can now apply the formula for average speed in order to solve for "y", we have:

average speed = distance/time

average speed = 1625/2.5 = 650 mph

In this case the average speed is equal to their relative speed, so we have:

2*y - 60 = 650

2*y = 650 + 60

2*y = 710

y = 710/2 = 355 mph

We can now solve for "x", we have:

x = 355 - 60 = 295 mph

The first plane is moving at 295 mph and the second plane is moving at 355mph.

5 0

3 years ago

students must In order for a class trip to be scheduled, at least sign up. So far, 23 students have signed up. Write and solve a

rusak2 [61]

I have added a screenshot with the complete question.

Answer:
At least 7 more students need to sign up for the field trip to be scheduled

Explanation:
Assume that the least number of students remaining to register for the trip to be scheduled is x.

total number of students = students who already registered + x

We are given that, the least number of students required for this trip is 30. This means that:
total number of students ≥ 30
Now, we know that 23 students already registered.

The inequality now is:
x + 23 ≥ 30
x ≥ 30 - 23
x ≥ 7

This means that at least 7 more students must register for the trip to be scheduled.

Hope this helps :)

7 0

3 years ago

Evaluate the expression

maks197457 [2]

Plug your number
5(7) + 5^2/5
35+25/5
60/5
12

8 0

3 years ago

Last question for the night.

horsena [70]

Answer:

third option

Step-by-step explanation:

$\frac{16 {x}^{2} }{4x + 24} \div \frac{8 {x}^{2} - 40x}{ {x}^{2} - 36} \\ = \frac{16 {x}^{2} }{4(x + 6)} \times \frac{(x + 6)(x - 6)}{8x(x - 5)} \\ = \frac{16 {x}^{2} }{4} \times \frac{x - 6}{8x(x - 5)} \\ = \frac{x}{1} \times \frac{x - 6}{2(x - 5)} \\ = \frac{x(x + 6)}{2x - 10}$

hope it helped

pls mark BRAINLIEST

thanks

4 0

3 years ago