The answer is A

A Parallelogram is a shape with 4 sides that has two pairs of parallel sides. The opposite sides must have equal length. This is accurate for this shape.

A Rectangle is a shape with 4 sides that has four right angles. This is accurate for this shape.

A rhombus is a shape with 4 sides of equal length. This is not accurate for this shape.

A square is a shape with 4 sides of equal length and four right angles. This is not accurate for this shape.

4 0

2 years ago

Solve the equation -15=a/5 A=-3 A=-20 A=-10 A=-75

agasfer [191]

To solve any equation, you do whatever you need to do
to wind up with the unknown quantity all alone on one side.
BUT ... whatever you do to one side of the equation, you must
also do to the other side.

Here, we have the
he original equation: -15 = a/5

Multiply each side by 5 : -75 = a

and bada-bing, THERE's the solution !

4 0

3 years ago

A data table shows that as the input (x) increases by 1, the output (y) decreases by 7. When x is 0, y is –2. What is the equati

Savatey [412]

X 0 1 2 ...
y -2 -9 -16...
(y) decreases by 7/ (x) increases by 1, so slope =-7,
y- int=-2
this is equation c) y=-7x-2

7 0

3 years ago

In a statistics class of students, have volunteered for community service in the past. If two students are selected at random fr

Lynna [10]

Answer:

We do not have the total number of students or volunteers.

I will put variables (and then random numbers) and solve it, then you can put the numbers that you need in the equations.

Suppose that the class has Y students, and X of these students have volunteered.

The probability of picking at random a student that has volunteered is equal to the number of students that had volunteered divided by the total amount of students:

p1 = X/Y

now, we must choose another student, but now the volunteers are X - 1, and the total number of students is also Y - 1 (because we already took one student)

now, the probability of selecting other will be:

p2 = (X- 1)/(Y - 1)

Then, the joint probability of both events is equal to the product of both probabilities:

P = p1*p2 = (X/Y)*((X-1)/(Y -1))

Suppose that there are 20 students, and 10 students that have volunteered, then the equations are:

P = (10/20)*(9/19) = 0.237

3 0

3 years ago