-3(4x+5) please help

1 answer:

7 0

Answer:
-12x-15
explanation:
you multiply -3 by 4x, gives u -12x and then you multiply -3 by 15 which gives you -15
then you put it in an equation
-12x-15

You might be interested in

Can someone please help with the last problem

Brut [27]

Answer:

18x +9h

Step-by-step explanation:

Such problems are tedious, but not difficult. The trick is to avoid making mistakes in the algebra.

$\dfrac{f(x+h)-f(x)}{h}=\dfrac{(9(x+h)^2)-(9x^2)}{h}\\\\=\dfrac{9(x^2+2xh+h^2)-9x^2}{h}=\dfrac{18xh+9h^2}{h}=\boxed{18x+9h}$

3 0

2 years ago

If the sinA=3/5 and the cos=4/5 then what is tan A

Sladkaya [172]

Answer:

tanA = sinA / cosA = 3/5 / 4/5 = 3/4.

5 0

3 years ago

Simple interest on a bank loan can be calculated by multiplying the principal times the interest rate times the time. In the for

diamong [38]

Answer:

simple interest

Step-by-step explanation:

this is because r is interest rate, p is principal, and t is time

5 0

2 years ago

Read 2 more answers

5+2 root 3 / 7+4 root 3 =a-6root3

STALIN [3.7K]

Answer:

Step-by-step explanation:

$\dfrac{5+2\sqrt3}{7+4\sqrt3}\qquad\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=\dfrac{5+2\sqrt3}{7+4\sqrt3}\cdot\dfrac{7-4\sqrt3}{7-4\sqrt3}=\dfrac{(5+2\sqrt3)(7-4\sqrt3)}{7^2-(4\sqrt3)^2}\qquad\text{use FOIL}\\\\=\dfrac{(5)(7)+(5)(-4\sqrt3)+(2\sqrt3)(7)+(2\sqrt3)(-4\sqrt3)}{49-4^2(\sqrt3)^2}\\\\=\dfrac{35-20\sqrt3+14\sqrt3-8(3)}{49-(16)(3)}=\dfrac{(35-24)+(-20\sqrt3+14\sqrt3)}{49-48}\\\\=\dfrac{11-6\sqrt3}{1}=11-6\sqrt3$

8 0

3 years ago

Three friends go grocery shopping together and each buys same kind of oranges. Lamar buys 2 pounds and pays 7.00 Enrico buys 3 p

xenn [34]

Answer: B

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

-3(4x+5) please help​

-3(4x+5) please help