All categories

3 years ago

Which expression is it please help

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

8 0

Answer:

2nd option is the answer of your question

Alex777 [14]3 years ago

8 0

Answer:

first option is the correct answer.

Step-by-step explanation:

You might be interested in

How many lines of symmetry does the figure have? A. 4 B. 3 C. 2 D. 1

BaLLatris [955]

The figure has 4 lines of symmetry. (Answer choice A)

6 0

4 years ago

Read 2 more answers

PLEASE HELP !!!!!!!!!!

valentina_108 [34]

Step-by-step explanation:

option B is the correct option

m = 60h

5 0

3 years ago

Find the circumference of the circle. Rounded to the nearest tenth the circle is 40 in

Galina-37 [17]

Complete your queation

4 0

3 years ago

Point M is the midpoint of segment AB. AM=3x+40 and MB=x^2. Find x and AB

Nina [5.8K]

$\text{Hello there! :)}$

$x = 8\\\\AB = 128 \text{ units}$

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

$\text{Since Point M is the midpoint of AB, then:}\\\\AM = MB\\\\$

$\text{Set the two equations equal to each other:}\\\\3x + 40 = x^{2} \\\\$

$\text{Move all terms over to one side to simplify more easily:}\\\\0 = x^{2} - 3x - 40$

$\text{Factor by finding numbers that sum up to -3 and multiply into -40:}\\\\0 = (x - 8)(x + 5)\\\\x = -5, 8$

$\text{The length of a segment cannot be negative, so choose the positive solution:}\\\\x = 8$

$\text{Substitute in this value of x into either AM or MB to solve for AB:}$

$AB = 2(MB)\\\\AB = 2(x^{2} )\\\\AB = 2(8^{2})\\ \\AB = 2(64)\\\\AB = 128 \text{ units}$

5 0

4 years ago

A piece of wood is cut in the ratio 5:2:1 . if the shortest piece is 120cm , what is the length of each of the other two pieces

yan [13]

5:2:1

If the shortest piece, 1, is 120cm, just multiply it by 2, then 5

120 x 2 = 240cm (the 2 in 5:2:1)
120 x 5 = 600cm (the 5 in 5:2:1)

6 0

3 years ago