2 years ago

Help! Expressions and equations

Mathematics

1 answer:

Dovator [93]2 years ago

5 0

Answer:

1. 16−6=10

2. 4⋅2+1

3. x÷25

4. y+8=40

Explanation:

This is an equation—two expressions are connected with an .This is an expression—no equal sign. This is an expression—no equal sign. This is an equation—two expressions are connected with an equal sign.

You might be interested in

Mai has picked picked 1 cup of strawberries for a cake, which is enough for 3/4 of the cake. How many cups does she need for the

Naily [24]

She will need 1/3 cup because she has already covered 3/4

8 0

2 years ago

Read 2 more answers

During his tennis career in singles play, John won 4 fewer tournament A titles than tournament B titles and 2 more tournament C

Dafna11 [192]

A-4=B
2+C=B
A+B+C=13

A=b+4
C=B-2
Plug in to equation 3
(B+4)+B+(B-2)=13
Rearrange
B=11/3
A=(11/3)+4= 23/3
C=(11/4)-2= 3/4

7 0

3 years ago

Factor the expression.

tiny-mole [99]

B. (k+10f)(k-5f) you can tell in 2 ways. 1. if the second sign is neg then the signs in the factors are going to be one neg and one positive so that knocks out C and D. Then you look at the second term and since the 5 is positive then the 10 has to be positive so you end up with a positive 5kf.

The second way is to FOIL them out. When you check B you get $k^{2} -5kf+10kf- 50f^{2}$ combine your like terms and you have your original expression of $k^{2} +5kf-50 f^{2}$

Hope that helps

3 0

3 years ago

Help me please and thank you

goldenfox [79]

I believe the answer is 78.54 , D

4 0

3 years ago

Read 2 more answers

Jake rewrites the expression 81x2 – 1 as a difference of squares so he can factor it. Which answer choice shows how Jake could r

patriot [66]

Letter B
Different of 2 squares
(9x-1)(9x+1)

3 0

2 years ago