All categories

2 years ago

Find the measure of AB if B is the midpoint of AC and AB = 2x - 4 and AC = 28

Mathematics

1 answer:

yarga [219]2 years ago

4 0

Answer:

AB=14

Step-by-step explanation:

First you write the equation 2(2x-4)=28 because if b is the midpoint then AB is half of the line so you multiply that half by two the make it equal to the whole line.

Then you distribute the two and get 4x-8=28.

Then you add 8 to 28 and get 36.

Then you divide 36 by 4 because the 4 and x are being multiplied together so you have to divide to get them apart.

So then you get x=9 and you aren't done yet because you have to plug x into 2x-4.

So it is 2(9)-4 which is 18-4 which equals 14.

You might be interested in

1cm 8cm 4cm: surface area

valkas [14]

Answer:

Perimeter of Triangle sum of all sides.

=13 cm

6 0

2 years ago

Read 2 more answers

There are 86 people coming to my party and each person will need a cup how many packages of cups will i buy if one package of cu

marusya05 [52]

Answer:

i think its 4 packages

Step-by-step explanation:each package is 25 so if you get 2 its 50 + another package would be 75 so you need one more.

hope this helps

5 0

2 years ago

Read 2 more answers

Triangle ABC is an oblique triangle. If angle A equals 57°, angle B equals 73°, and AB equals 24 in, what is the length of AC?

natulia [17]

Step-by-step explanation:

$\huge{\underbrace{\overbrace{\mathfrak{\pink{Answer:}}}}}$

Angle C must = [180 - 73 - 57 ] = [180 - 130] = 50°

And using rhw Law if Sines, we have.....

AB/sin C = AC/sin B → 24/sin(50) = AC/sin(73) → AC = 24*sin(73)/sin(50) = about 29.96 in

5 0

2 years ago

Dean loves rocks! He has 666 pieces of granite, 333 pieces of marble, 141414 pieces of sandstone, and 111 pieces of slate.

uranmaximum [27]

Answer:

The ratio of sanstone to marble is... 141414 : 333

All you have to do is look at how much sandstone Dean has and how much marble he has, then put the amount of sandstone infront of the amount of marble because in the question it says what is the ratio of sandstone to marble and you see that sandstone is first.

Hope this helps! :)

Stay safe

5 0

2 years ago

HELP ME PLEASE!!!!!!!!

ale4655 [162]

I think this is how you do it

4 0

2 years ago