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goblinko [34]
3 years ago
5

What is the value of f(-4)? f(-4) =_____

Mathematics
1 answer:
BARSIC [14]3 years ago
5 0

Answer:

it looks like -7

Step-by-step explanation:

i just went to x=-4 and went to the nearest point from there

hope this is correct and helps

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The sum of two numbers is 48.<br>the second number is seven times the first number​
dusya [7]

Answer:

\huge\boxed{\sf x =6,\ y = 42}

Step-by-step explanation:

Let the numbers be x and y

<h3>Given condition:</h3>

x + y = 48 --------(1)

y = 7x -------------(2)

Put Eq. (2) in (1)

x + 7x = 48

8x = 48

Divide 8 to both sides

x = 48/8

<h3>x = 6</h3>

Put x = 6 in Eq. (2)

y = 7 (6)

<h3>y = 42</h3>

\rule[225]{225}{2}

6 0
2 years ago
Read 2 more answers
For what value of a do the lines 5x–2y=3 and x+y=a intersect at a point on the y-axis?
inna [77]

Answer:

  a = -3/2

Step-by-step explanation:

You can set x=0 and solve for y to find the y-intercept in each case.

  first equation: y-intercept = -3/2

  second equation: y-intercept = a

To make these equal, we must have ...

  a = -3/2

5 0
3 years ago
Using the slope and the y-intercept graph the line represents by the following equation then select the correct graph 2y + 4 =0
dybincka [34]

Answer:

Step-by-step explanation:

2y + 4 = 0               <em>subtract 4 from both sides</em>

2y = -4       <em>divide both sides by 2</em>

y = -2

The slope-intercept form of an equation of a line:

y = mx + b

m<em> - slope</em>

b<em> - y-intercept → (0, </em><em>b</em><em>)</em>

In the equation

y = -2

<em>slope: </em><em>m = 0</em>

<em>y-intercept: </em><em>b = -2 → (0, -2)</em>

<em />

<em>y = -2 - it's a horizontal line</em>

8 0
3 years ago
fresh water from lakes account for only 0.001 of the world's water supply write thos decimal as a percent. (i need this now)
timurjin [86]
1% is the answer because you have to bump it up two place and it is always the first number. 
6 0
3 years ago
Read 2 more answers
HELP HELP HELP HELP HELP HELP HELP HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
alexira [117]

Answer: A. $6x + $27 < $87

Step-by-step explanation:

Your question says “...x represents the number of times he eats out”, when he eats out its $6, so that means obviously that the x would be by the 6 and the less then symbol would be facing 87 cause your wont to spend less then that amout.

Have a good day and stay safe :)

4 0
3 years ago
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