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Vika [28.1K]
3 years ago
13

Plsssssssssssssssssss help

Mathematics
1 answer:
klemol [59]3 years ago
6 0

Answer:

c)

Step-by-step explanation:

y = mx +c

c is y-intercept. At y-intercept , x = 0.

So, from the table, c = -5

y = mx  - c

Choose any point from the table and Plugin the values in the above equation.

(4 , 1.4)

1.4 = m*4 - 5

1.4+5 = 4m

6.4=4m

6.4/4 = m

1.6 = m

y = 1.6x - 5

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What graph represents the system of linear inequalities? 4x+y>1 y≤32x+2
castortr0y [4]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

4x+y>1 -----> inequality A

The solution of the inequality A is the shaded area above the dashed line

The equation of the dashed line is 4x+y=1

The slope of the dashed line is negative

The y-intercept of the dashed line is the point (0,1)

The x-intercept of the dashed line is the point (0.25,0)

y\leq \frac{3}{2}x+2 -----> inequality B  

The solution of the inequality B is the shaded area below the solid line

The equation of the solid line is y=\frac{3}{2}x+2

The slope of the solid line is positive

The y-intercept of the solid line is the point (0,2)

The x-intercept of the solid line is the point (-1.33,0)

using a graphing tool

The graph in the attached figure




7 0
3 years ago
Devonte used the change of base formula to approximate log Subscript 8 Baseline 25. Which expression did Devonte use?
Travka [436]

\frac{log 25}{log 8} is the expression Devonte used the change of base formula to approximate log Subscript 8 Baseline 25.

Given that, Devonte used the change of base formula to approximate log Subscript 8 Baseline 25.

We need to determine the expression did Devonte use.

<h3>What is the formula of change of base formula?</h3>

The change of base formula says log_{a} b=\frac{log_{c}b }{log_{c}a}. It means to change the base of a logarithm logb b a, we just use division \frac{log a}{log b} where these logarithms can have any positive number as a base.

Now, log Subscript 8 Baseline 25 =log_{8}25

=\frac{log_{10}25 }{log_{10}8}=\frac{log 25}{log 8}

Therefore, \frac{log 25}{log 8} is the expression Devonte used the change of base formula to approximate log Subscript 8 Baseline 25.

To learn more about the logarithms visit:

brainly.com/question/20785664.

#SPJ1

5 0
2 years ago
Read 2 more answers
A rectangular field has an area 28800 sq.meter.its length is twice as long as its width.what is the length of its sides?
AVprozaik [17]
Let 
x---------> the length side of rectangle
y---------> the width side of rectangle

we know that
x=2y-----> equation 1
area=x*y-------> 28800=x*y------> equation 2
substitute 1 in 2

28800=[2y]*y-----> 28800=2y²-------> y²=14400------> y=120 m
x=2*y----> x=2*120------> x=240 m

the answer is
the length side of rectangle is 240 m
 the width side of rectangle is 120 m


5 0
3 years ago
If a student walked 2 feet straight to the chalk board in 2 seconds and
sergeinik [125]

Answer:

2 feet

Step-by-step explanation:

Displacement at 0 seconds is 0 feet.

Displacement at 2 seconds is 2 feet because it took them 2 seconds to walk 2 feet.

7 0
3 years ago
Help with this pls, I am giving brainliest :D
Vinvika [58]

Answer: 30 degrees

I think I got it correct

4 0
3 years ago
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