All categories

4 years ago

34) Apply the distributive property to simplify the expression. 5(3x − 7) A) 15x + 35 B) 15x − 35 C) −15x + 35 D) −15x − 35

Mathematics

2 answers:

Anuta_ua [19.1K]4 years ago

8 0

Answer:

B. $15x-35$

Step-by-step explanation:

We are asked to simplify the expression $5(3x-7)$ using distributive property.

Distributive property states that we can multiply a quantity to sum by multiplying each addend separately and then add the products as:

$a(b+c)=a\cdot b+a\cdot c$

Using distributive property, we will multiply 5 by $3x$ and $-7$ as:

$5\cdot 3x-5\cdot 7$

$15x-35$

Therefore, the simplified form of the given expression would be $15x-35$ and option B is the correct choice.

Fofino [41]4 years ago

7 0

Answer:

Answer:

Explanation:

If you want to multiply a parenthesis by a number, you simply distribute the number to all the terms in the parenthesis.

Step-by-step explanation:

You might be interested in

What is the determinant of the coefficient matrix of the system 0x+0y-0z=3 0x+0y+0z=-1 0x+0y+0z=18

makvit [3.9K]

Answer:

Zero.

Step-by-step explanation:

The determinant of the coefficient matrix of the system is zero, since every coefficient is equal to zero.

3 0

4 years ago

To solve an equation, you use____operations.

Tema [17]

Hey there!☺

$Answer:\boxed{\text{inverse}}$

$Explanation:$

When you are solving an equation, it is important to use inverse operations. You will need to use the inverse operations on both sides of the equation. And it is also important to isolate the variable. After you do that, you will need to reverse it up. The way to do all of this is using the inverse.

To solve an equation, you use inverse operations.

Hope this helps!

5 0

3 years ago

A model rocket is launched with an initial upward velocity of 138 ft/s. The rocket's height h (in feet) after 1 seconds is given

insens350 [35]

Answer:

t = 8.017 or 0.608 (nearest hundredth)

Step-by-step explanation:

$h = 138t-16t^2$

when h = 78:

$\implies 138t-16t^2=78$

$\implies 16t^2-138t+78=0$

Using quadratic formula:

$t=\dfrac{138 \pm\sqrt{(-138)^2-(4 \cdot 16 \cdot 78)} }{2 \cdot 16}$

$\implies t=\dfrac{138 \pm\sqrt{14052} }{32}$

$\implies t=8.017, t = 0.608$

8 0

2 years ago

Beyonce is solving a system of equations:

aivan3 [116]

Answer:

x=5, y=4. (5, 4).

Step-by-step explanation:

2x-3y=-2

4x+y=24

------------------

-2(2x-3y)=-2(-2)

4x+y=24

----------------------

-4x+6y=4

4x+y=24

--------------

7y=28

y=28/7

y=4

4x+4=24

4x=24-4

4x=20

x=20/4

x=5

8 0

3 years ago

I am a pattern block that has 2 fewer sides than a hexagon. I have 2 pairs of parallel sides a 4 right angles. Which shape am I

never [62]

Answer:

you are a square

Step-by-step explanation:

it says " i have 2 pairs of parallel sides and 4 right angles", and typically 4 right angles make a square

8 0

3 years ago