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kirza4 [7]
2 years ago
5

Need help I don’t know how to do it

Mathematics
1 answer:
liberstina [14]2 years ago
8 0
First attempt to break the top portion up so the negative signs don’t confuse you.

(2 x -2) x (-2 x -4)/ 2 x 2

= (-4) x (8)/ 4

= -32/4

= -8

*Remember that multiplying two negative numbers give you a positive number
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What is the solution to y-12=20
vredina [299]

Hey there!

y-12=20

Add 12 to both sides. (do the inverse of subtraction, which is addition)

y=32

Check answer.

32-12=20 <=== checks out :)

I hope this helps!

~kaikers

4 0
3 years ago
Read 2 more answers
The ratio of green beads to yellow beads in a bracelet is three to four. The total number of beads is 14. How many green beads a
Alja [10]

Answer:

There are 6 green beads there.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of green beads

y is the number of yellow beads

The ratio of green beads to yellow beads in a bracelet is three to four.

This means that

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

So

3y = 4x

y = \frac{4x}{3}

The total number of beads is 14.

This means that x + y = 14

How many green beads are there ?

This is x.

x + y = 14

However

y = \frac{4x}{3}

So

x + \frac{4x}{3} = 14

Using multiplying by the gcm(3)

3x + 4x = 42

7x = 42

x = 6

There are 6 green beads there.

4 0
3 years ago
Express in simplified exponential notation.<br> x3 • x5 =
Darya [45]
x^3 \times x^5 = x^{3+5} =\boxed{\bf{x^8}}}
5 0
2 years ago
Read 2 more answers
The officer stepped off 20 paces from E to G. If his pace is 2 1/2 feet long. How wide was the river?
Sergeeva-Olga [200]

Answer:

The wide of river is 50\ ft

Step-by-step explanation:

In this problem we know that

Triangles DEG and DEF are congruent by ASA (Angle-Side-Angle) Congruence

therefore

EG=EF

EG=20*(2\frac{1}{2})=20*\frac{5}{2}=50\ ft

8 0
3 years ago
Help please , I'm so confused
Bingel [31]
If u separate these into 2 triangles then they will become 90 degree triangles so angle a=angle c.
8 0
2 years ago
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