All categories

4 years ago

A system of equations is graphed on the coordinate plane.

1 answer:

7 0

Y = -2x - 4
y = 2x + 4

-2x - 4 = 2x + 4
-2x - 2x = 4 + 4
-4x = 8
x = -8/4
x = -2

y = 2x + 4
y = 2(-2) + 4
y = -4 + 4
y = 0

solution (-2,0)

You might be interested in

3/4 + 7/15 +5/6 +3/5 +3/20 =

Sergio [31]

The answer is 2 4/5.........

6 0

4 years ago

Which of these measurements is expressed to four significant figures?

Reil [10]

Answer: The answer is d. 16.530 m with 4 significant figures

Step-by-step explanation:

Significant figures are the digits that contribute meaning in the expression

In the given options

a. $2.6\times 10^4$

Here only 2 and 6 are counted as significant digits

b. $5.300\times 10^{-7}$

Here Since the zeros are after decimal So they will not be counted in significant figure i.e. S fig =2

c. 0.108

Here No of significant figures will be 3

d. 16.530

Here the no of significant figures are 4 i.e 1 6 5 3

So the answer is d.16.530

4 0

3 years ago

Read 2 more answers

A plumber charges $40 to come to your house and $25 for each hour of labor. If the final bill came to $165, how many hours did t

k0ka [10]

Answer:5 hours

is the amount he worked

6 0

3 years ago

Read 2 more answers

Condense this logarithm to a single logarithm <br> 6log 5u

mina [271]

Answer:

log_5(u^6)

Step-by-step explanation:

According to log rules, log_a(b^n) = nlog_a(b), reversing this we get that log_5(u^6) is what you are looking for.

3 0

3 years ago

on the subway 8 out of 11 people are carrying a briefcase. Based on the information, if there are 700 people on the subway, then

user100 [1]

Answer:

About 191 people

Step-by-step explanation:

Given:

On the subway 8 out of 11 people are carrying a briefcase.

There are 700 people on the subway.

Question asked:

About how many people do not have a briefcase ?

Solution:

By applying unitary method:

Out of 11 people, number of people having briefcase = 8

Out of 1 , number of people having briefcase = $\frac{8}{11}$

Out of 700 people, number of people having briefcase = $\frac{8}{11} \times700\\$

= $\frac{5600}{11}$

Number of people not having briefcase = $700 -$ $\frac{5600}{11}$

= $\frac{7700-5600}{11}$

= $\frac{2100}{11}$ = $190.90$

Therefore, about 191 people do not have a briefcase on the subway.

4 0

3 years ago