Ask question

Ask question

All categories

3 years ago

6

When solving a system of linear equations, when would you want to solve by graphing? When would you want to solve by substitutio

n? When would you want to solve by elimination? Your answer should be at least three complete sentences.

1 answer:

NARA [144]3 years ago

5 0

It’s A bud I got this question before

You might be interested in

What is the product of 5the square root of 3. • 4the square root of 15.? Simplify if possible. 60the square root of 5. 20the squ

svp [43]

Correct Answer: $60 \sqrt{5}$

We are to find:

$5 \sqrt{3} *4 \sqrt{15}$

Multiplying and simplifying the radicals, we get:

$20 \sqrt{45} \\ \\ 
=20 \sqrt{9*5} \\ \\ 
=20*3 \sqrt{5} \\ \\ 
=60 \sqrt{5}$

4 0

3 years ago

Read 2 more answers

A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different ty

Shtirlitz [24]

Answer:

455 or 680, depending

Step-by-step explanation:

If we assume the three choices are different, then there are ...

15C3 = 15·14·13/(3·2·1) = 35·13 = 455

ways to make the pizza.

___

If two or three of the topping choices can be the same, then there are an additional ...

2(15C2) +15C1 = 2·105 +15 = 225

ways to make the pizza, for a total of ...

455 + 225 = 680

different types of pizza.

__

There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.

_____

nCk = n!/(k!(n-k)!)

6 0

3 years ago

Which point is located at -0.135? <br> A<br> B <br> C or <br> D

Sergeu [11.5K]

D as you can see on the number line d is 1/3 of the way to -2

6 0

3 years ago

Susan made a deposit of $74 to her bank account she then had $192 in the account how much money was in the account before the de

Aleksandr-060686 [28]

Rewind the "mind movie" of what happened. She added $74 to her account and then had $192. Back it up by subtracting the $74 from $192.

192 - 74 = 118

3 0

3 years ago

Read 2 more answers

Given: M(-4,-1), B(-5,-3) find the midpoint

Dmitry [639]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
M&({{ -4}}\quad ,&{{ -1}})\quad 
% (c,d)
B&({{ -5}}\quad ,&{{ -3}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left(\cfrac{{{ -5}}-4}{2}\quad ,\quad \cfrac{-3-1}{2} \right)$

4 0

3 years ago

Read 2 more answers