1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Genrish500 [490]
3 years ago
11

What is the area of this trapezoid?

Mathematics
1 answer:
kolezko [41]3 years ago
5 0

Answer:

are of trapezoid =1/2×height(a+b)

Step-by-step explanation:

A=1/2×8(10+20)

=4×30

=120cm*

You might be interested in
Solve the system of equations below<br><br> y = 2x + 6<br><br> 2x - 3y = 6
rusak2 [61]

Answer:

 1. Slope = 42.667/2.000 = 21.333

 2. x-intercept = 6/64 = 3/32 = 0.09375

3.  y-intercept = 6/-3 = 2/-1 = -2.00000

plz mark me as brainliest :)

4 0
2 years ago
A university warehouse has received a shipment of 25 printers, of which 10 are laser printers and 15 are inkjet models. If 6 of
Tanya [424]

Answer:

The probability is 0.31

Step-by-step explanation:

To find the probability, we will consider the following approach. Given a particular outcome, and considering that each outcome is equally likely, we can calculate the probability by simply counting the number of ways we get the desired outcome and divide it by the total number of outcomes.

In this case, the event of interest is  choosing 3 laser printers and 3 inkjets. At first, we have a total of 25 printers and we will be choosing 6 printers at random. The total number of ways in which we can choose 6 elements out of 25 is \binom{25}{6}, where \binom{n}{k} = \frac{n!}{(n-k)!k!}. We have that \binom{25}{6} = 177100

Now, we will calculate the number of ways to which we obtain the desired event. We will be choosing 3 laser printers and 3 inkjets. So the total number of ways this can happen is the multiplication of the number of ways we can choose 3 printers out of 10 (for the laser printers) times the number of ways of choosing 3 printers out of 15 (for the inkjets). So, in this case, the event can be obtained in \binom{10}{3}\cdot \binom{15}{3} = 54600

So the probability of having 3 laser printers and 3 inkjets is given by

\frac{54600}{177100} = \frac{78}{253} = 0.31

4 0
3 years ago
The product of (4z^2 + 7z - 8) and (-z + 3) is -4z^3 + xz^2 + yz - 24. What is the value of x? What is the value of y?
ycow [4]

Answer:

x=5+\frac{29}{z}-\frac{y}{z}

y=5z+29-xz

Step-by-step explanation:

Given: (4z^2+7z-8)(-z+3)=-4z^3+xz^2+yz-24; find x and y.

Let's start with finding x first. Let's distribute the left side of the equation.

-4z^3+5z^2+29z-24=-4z^3+xz^2+yz-24

Let's move everything we can to the left side of the equation. Some things will cancel out.

5z^2+29z=xz^2+yz

Now, let's move the term that includes x to the left side of the equation. Everything else should be moved to the right.

-xz^2=-5z^2-29z+yz

Let's get rid of the negative sign in front of x by dividing both sides by -1.

xz^2=5z^2+29z-yz

To get x completely isolated, divide both sides by z^2.

\frac{xz^2}{z^2}=\frac{5z^2}{z^2}+\frac{29z}{z^2}-\frac{yz}{z^2}

Simplify.

x=5+\frac{29}{z}-\frac{y}{z}

Let's solve for y. We will start with the distributed and simplified equation to make it easier.

5z^2+29z=xz^2+yz

Now, let's move the term that includes y to the left side of the equation. Everything else should be moved to the right.

-yz=-5z^2-29z+xz^2

Again, let's get rid of the negative sign in front of the y by dividing both sides by -1.

yz=5z^2+29z-xz^2

To isolate y, divide both sides by z.

\frac{yz}{z}=\frac{5z^2}{z}+\frac{29z}{z}-\frac{xz^2}{z}

Simplify.

y=5z+29-xz

8 0
2 years ago
Read 2 more answers
What is the area of the figure?
iren [92.7K]

Answer:

3600

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A pentagonal-based prism is sliced horizontally by a plane parallel to the base. Which figure best represents the shape of a cro
siniylev [52]
Since a pentagonal based prism is sliced horizontally by a plane parallel to the base. So the figure must be similar to the base of the prism because it was sliced parallel to base. Since it is a pentagonal based prism, then the cross section is also pentagon in shape

<span> </span>

5 0
3 years ago
Other questions:
  • Im not sure how to solve this please help
    6·1 answer
  • What is 3 7/8 + 3 2/12
    6·1 answer
  • If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cd)(x)?
    11·1 answer
  • A number "n" is at least 4
    13·1 answer
  • SHOW WORK PLZ!!!!!<br> 1/2 (x-5) +5 = 9x-(12x-6) +28
    9·2 answers
  • A town has 10,000 two-child families. Design a simulation to estimate the percentage of two-child families with two girl. Choose
    5·2 answers
  • How do you factor the quadratic equation 3x^2 + 8x + 3 to find the roots?
    8·2 answers
  • How do u do parabola
    8·1 answer
  • You work for a company that makes tiles for patios. A customer sent you the following picture of his patio. He said the patio is
    10·1 answer
  • a sports team won twice as many games as they lost. the sum of games won and games lost was 42. How many games did they win?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!