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Naddika [18.5K]
2 years ago
12

2 - [7+5 - (-4)] show work too, please

Mathematics
2 answers:
Bezzdna [24]2 years ago
7 0

We will use PEMDAS to solve this equation.

2-[7+5-(-4)]

2-[12-(-4)]

2-[16] You can remove the brackets at this point, if you want.

-14

Answer: -14

umka21 [38]2 years ago
5 0

Answer:

-14

Step-by-step explanation:

2- (7+5 - (-4))      ---- add 7 and 5

2 - (12 - (-4))       ----- subtract -4 from 12

2 - 16

= -14

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find the average rate of change from t=2 to t=5 for the velocity function v(t)=t^2-t+10. WILL GIVE THE BRAINLIEST ANSWER--EXPLAI
Elina [12.6K]
Answer: The average rate of change is 6.
First, plug in each value of <em>t</em> into the function, v(t) to find there coordinate pairs.

v(2) = (2)^2 - (2) + 10
v(2) = 4 + 8
v(2) = 12

v(5) = (5)^2 - (5) + 10
v(5) = 25 + 5
v(5) = 30

You can write these values as coordinate pairs, like so: (2, 12) and (5, 30).
The formula for the average rate of change is A(x) =  \frac{f(x)-(f(a)}{x-a}. When you plug in the values from this particular case, the average rate of change formula becomes A(t) = \frac{30-12}{5-2}, or A(t)= \frac{18}{3}.

Looking at the equation, you can solve for the average rate of change between t = 2 and t = 5, which equals 6.
8 0
3 years ago
Please answer <br> 3(x-1)=5x+3-2x
Setler [38]
Answer: there are no solutions



Step by step: Step 1: Simplify both sides of the equation.
3
(
x
−
1
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=
5
x
+
3
−
2
x
(
3
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(
x
)
+
(
3
)
(
−
1
)
=
5
x
+
3
+
−
2
x
(Distribute)
3
x
+
−
3
=
5
x
+
3
+
−
2
x
3
x
−
3
=
(
5
x
+
−
2
x
)
+
(
3
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(Combine Like Terms)
3
x
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3
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3
3
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−
3
=
3
x
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3
Step 2: Subtract 3x from both sides.
3
x
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3
−
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=
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−
3
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Step 3: Add 3 to both sides.
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0
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6 0
2 years ago
Read 2 more answers
The question is attached
Bingel [31]

Answer:

We call the denominator rational.

Step-by-step explanation:

For example:

\frac{1}{\sqrt{2}} = \frac{\sqrt2}{\sqrt2 \cdot \sqrt2} = \frac{\sqrt2}{2}

It's clear that the denominator is now a rational number, not an irrational one anymore.

5 0
1 year ago
You have been asked to build a tree house with a floor that is twice as long as it is wide. You have only a certain amount of wo
Monica [59]

9514 1404 393

Answer:

  B. Draw a diagram.

Step-by-step explanation:

Most construction starts with a diagram.

_____

<em>Additional comment</em>

You may actually start by finding a pattern you like, then figuring the material required to construct the pattern, then working backward to determine the dimensions you need to use to stay within your material budget. You will probably draw a diagram at many points in the planning process.

4 0
2 years ago
13x + 7x - 4x = (-40)
dlinn [17]
13x + 7x - 4x = -40
combine like terms o0n the left
16x = -40
divide both sides by 16
x = -5/2 or -2.5
5 0
3 years ago
Read 2 more answers
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