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3 years ago

Math Classwork. If you could help it would be much appreciated :)

Mathematics

1 answer:

maria [59]3 years ago

8 0

Answer:

these are quadratic graphs

Step-by-step explanation:

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What is (4y+3)-(y-2) simplified?

madam [21]

Answer:

3y + 5

Step-by-step explanation:

combine like terms

4y - y = 3y

3-(-2) =5

3 + 2 = 5

3y + 5

4 0

3 years ago

Read 2 more answers

Show Work to factor the binomials.

Sophie [7]

$(14)\\\\x^2 + 14x +45\\\\=x^2 +5x +9x +45\\\\=x(x+5) +9(x+5)\\\\=(x+9)(x+5)\\\\(15)\\\\x^2 +18x +45\\\\=x^2 +15x +3x +45\\\\= x(x+15) +3(x+15)\\\\=(x+3)(x+15)\\\\\\(16)\\\\x^2+46x+45\\\\=x^2 +45x +x +45\\\\=x(x+45) +(x+45)\\\\=(x+45)(x+1)$

7 0

2 years ago

The sum of twice a number and a larger number is 145. The difference between the numbers is 55. Let x represent the smaller numb

Lelu [443]

Answer:

145 :) hope this helps!<3

Step-by-step explanation:

correct me if i'm wrong so no one fails on a test or question

6 0

2 years ago

19. Tracey stopped at the convenience store on her way to school. With tax, bottles of soda

ki77a [65]

Answer:

she could buy 3 bags of chips with money left over

Step-by-step explanation:

19. 12 - 3 (2 bottles soda) = 9 - (3)(2.50 bags of chips)= 9 - 7.50 =1.50

6 0

3 years ago

Find the area and circumference.

saveliy_v [14]

Answer:

area ≈ 176.7 cm²
circumference ≈ 47.1 cm

Step-by-step explanation:

The radius is half the diameter, so is ...

r = d/2 = 15 cm/2 = 7.5 cm

The area formula is ...

A = πr²

Filling in the radius, we have ...

A = π·(7.5 cm)² = 56.25π cm² ≈ 176.7 cm² . . . area

The circumference formula is ...

C = πd

Filling in the diameter, we have ...

C = π·(15 cm) = 15π cm ≈ 47.1 cm . . . circumference

5 0

4 years ago