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Oduvanchick [21]
3 years ago
13

Which of the following is true about an isosceles trapezoid?

Mathematics
1 answer:
mixas84 [53]3 years ago
6 0
<span>The diagonals are congruent.

</span>
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I need help with finding the area of the following triangles
svetlana [45]
1) 1/2 x (4)(3) = 1/2 x 12=6in2
2) 1/2 x (12)(6) = 1/2 x 36=18cm2
3) 1/2 x (9)(7) = 1/2 x 63=31.5ft2
4) 1/2 x (12)(12) = 1/2 x 144= 72cm2
5) 1/2 x (3)(2) = 1/2 x 6=3ft2
6) 1/2 x (20)(16) = 1/2 x 320=160cm2
7) 1/2 x (7)(15) = 1/2 x 105=52.5m2
8) 1/2 x (9)(9) = 1/2 x 81=40.5in2
9) 1/2 x (2)(2) = 1/2 x 4=2ft2
10) 1/2 x (6)(4) = 1/2 x 24=12ft2
11) 1/2 x (15)(10) = 1/2 x 150=75ft2
12) 1/2 x (3)(10) = 1/2 x 30=15m2
5 0
3 years ago
SHOW YOUR WORK,Solve this system of equations for x using the addition method
maria [59]

Answer:

NUMBER 1.)

Step 1

Subtract 3y3y from both sides.

5x=10-3y5x=10−3y

Step 2

Divide both sides by 55.

\frac{5x}{5}=\frac{10-3y}{5}

5

5x

=

5

10−3y

Hint

Undo multiplication by dividing both sides by one factor.

Step 3

Dividing by 55 undoes the multiplication by 55.

x=\frac{10-3y}{5}x=

5

10−3y

Hint

Undo multiplication.

Step 4

Divide 10-3y10−3y by 55.

x=-\frac{3y}{5}+2x=−

5

3y

+2

Hint

Divide.

Solution

x=-\frac{3y}{5}+2x=−5

3y+2

Step-by-step explanation:

NUMBER 2.)

Step 1

Add 4y4y to both sides.

3x=6+4y3x=6+4y

Step 2

The equation is in standard form.

3x=4y+63x=4y+6

Step 3

Divide both sides by 33.

\frac{3x}{3}=\frac{4y+6}{3}

3

3x

=

3

4y+6

Hint

Undo multiplication by dividing both sides by one factor.

Step 4

Dividing by 33 undoes the multiplication by 33.

x=\frac{4y+6}{3}x=

3

4y+6

Hint

Undo multiplication.

Step 5

Divide 6+4y6+4y by 33.

x=\frac{4y}{3}+2x=

3

4y

+2

Hint

Divide.

Solution

x=\frac{4y}{3}+2x= 3

4y+2

4 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!! I WILL MARK BRAINLIEST
Leona [35]
2x =3 is the first one , first one is B and 2nd one is D I believe
5 0
3 years ago
Read 2 more answers
Roger is a graphic artist, so his resume’ is several pages long and includes an artistic portfolio. His prospective employers wa
Oxana [17]
<h3>Answer:    $186.03</h3>

===================================================

Explanation:

It costs $91.50 for the first 200 copies.

Roger needs 200 more copies to get to 400 total.

He's charged $42 per 100 copies at this point, so he is charged 42*2 = 84 extra dollars to do those extra 200 copies.

Before tax, his total is 91.50+84 = 175.50 dollars.

The sales tax will increase the bill by 6%

To increase by 6%, we use the multiplier 1.06

1.06*175.50 = 186.03

Or you can follow the steps shown in the next section.

-----------------

6% of 175.50 = 0.06*175.50 = 10.53

The sales tax is $10.53

175.50 + 10.53 = 186.03

-----------------

Whichever method you use, you should end up with an after-tax cost of $186.03

8 0
3 years ago
Raphael is traveling in a straight line at a constant speed from point A to point B. His distance from point B in miles is-20t+
Afina-wow [57]

Answer:

Speed  = 20 mi/h

Explanation:

There are two points A and B

Distance between both the points are define with function -20t + 45 miles

where t represent the number of hours of travelling.

Now firstly we find the initial position. At starting time is 0, so we put t=0 in given function of t.

At t=0;

d₀ = -20(0) + 45 = 0 + 45 = 45 miles

Now we find the distance travell after starting first hour.

Than we put t = 1 in the given function

At t = 1;

d₁ = -20(1) + 45 = -20 + 45 = 25 miles

Difference between d₁ & d₀ is

45 - 25 = 20 miles

We see that in one hour, total distace is covered 20 miles

Now we use time, speed, distance relation

Speed = \frac{distance}{time}

S = \frac{20}{1}

S = 20 miles/hour

That's the final answer.

I hope it will help you.

5 0
3 years ago
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