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user100 [1]
3 years ago
14

Samantha is painting her house. There are a total of 2,261 square feet of surface are to be painted. If she can paint 75 square

feet of surface area per hour, which equation would represent A, the surface area of the wall left to paint after Samantha has painted for t hours?
A- A= 75 - 2,261 t
B- A= 2,261 + 75t
C- A= 2,261 - 75t
D- A= 75 + 2,261t

Pleaseeeee help meeeeee I need this
Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0

Answer:

c

Step-by-step explanation:

the equation would be C because

A would end up with a negative amount

B is more than she originally has to paint and

D has the wrong coefficient for <em> t</em>.

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Equations and inequalities
DerKrebs [107]
Inequalities and equations use similar steps to solve, but inequalities give a range of numbers that can represent the variable while an equation will give a direct answer.

Example:

4+5x=24

First you would subtract 4 or add the opposite of 4 from 24.

4+5x=24
+(-4) +(-4)
—————
5x=20

Then divide each side by 5 or multiply each side by the reciprocal of 5 to isolate the variable.

1/5*5x=20*1/5 (reciprocal)
X= 4

You would use the same steps in an inequality but end up with a different sign.
8 0
2 years ago
Read 2 more answers
f is an even function. a = A 2-column table with 4 rows. Column 1 is labeled x with entries negative 2, 0, 2, 3. Column 2 is lab
Lady_Fox [76]

The values of a and b are 4 and -3

<h3>How to solve for (a) and (b)?</h3>

To solve for a, we make use of the function f(x).

x    f(x)

2     4

0     5

2     a

3     7

Remove the x values 0 and 3

x    f(x)

2     4

2     a

The above table implies that:

f(2) = 4 and f(2) = a

Substitute 4 for f(2) in f(2) = a

4 = a

Rewrite as:

a = 4

To solve for b, we make use of the function g(x).

x    g(x)

2     b

0     0

2     -3

3     -4

Remove the x values 0 and 3

x    g(x)

2     b

2     -3

The above table implies that:

f(2) = b and f(2) = -3

Substitute -3 for f(2) in f(2) = b

-3 = b

Rewrite as:

b = -3

Hence, the values of a and b are 4 and -3

Read more about functions at:

brainly.com/question/13153717

#SPJ1

<u>Complete question</u>

Use the Symmetry of a Function to Find Coordinates

f is an even function             g is an odd function

x    f(x)                                        x             g(x)

2     4                                          2              b

0     5                                          0              0

2     a                                          2              -3

3     7                                          3              -4

Find a and b

4 0
2 years ago
Help me .......................................
SpyIntel [72]

Answer:

X^3 AS THE NUMERATOR 8 AS THE DENOMINATOR

Step-by-step explanation:

6 0
3 years ago
A shirt that normally costs 30 dollers s on sale for 21.75 what percent of the regular price is the sale price
ivanzaharov [21]
72.5%

You can get this by dividing the new price by the original price and then multiplying by 100. 
3 0
3 years ago
What is the value of h (−2) when h (x) = 3x + 1?<br><br> ​ h (−2) =
Veseljchak [2.6K]
All you need to do is substitue -2 into the equation for x, 

h(-2) = 3(-2) + 1 = -6 + 1 = -5
6 0
3 years ago
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