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3 years ago

Evaluate the expression described below if the number is –3.

Mathematics

2 answers:

andrey2020 [161]3 years ago

7 0

3(n + 4) - 4....when n = -3

3(-3+4) - 4 =
3(1) - 4 =
3 - 4 =
-1 <==

Leya [2.2K]3 years ago

3 0

You already know the number is -3.
Four less than three times the sum of a number and four.
So, four less than will be at the end of the formula. The beginning of the formula is 3 times.
So it looks like this so far
3( )-4 Now let's look at "the sum of the number (-3) and 4.
So this is how it looks now
3(-3+4)-4
Remember, do inside the parenthesis first, then multiply, and lastly your subtraction.

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Please help me on this problem.

VashaNatasha [74]

Answer : (8,5)

Given

K(x) = $8-\sqrt[3]{x}$

Now we plug in each point and check whether it satisfies our equation

(-64,12)

K(-64) = $8-\sqrt[3]{-64}$ = 12 so this point lie on graph

(125,3)

K(125) = $8-\sqrt[3]{125}$ = 3 so this point lie on graph

(343,1)

K(343) = $8-\sqrt[3]{343}$ = 1 so this point lie on graph

(8,5)

K(8) = $8-\sqrt[3]{8}$ = 6 so this point does not lie on graph because we got 6 instead of 5

4 0

3 years ago

Find an equivalent function for the following: <br><br> f(x) = 3(2)4x

n200080 [17]

Hi there!

To find an equivalent function for this function, we can just simplify it.

f(x) = (6)4x

f(x) = 24x
is an equivalent function.

Hope this helps!

8 0

3 years ago

Please answer this multiple choice question correctly for 30 points and brainliest!!

Softa [21]

Answer:

B. 88°

Step-by-step explanation:

In a properly drawn circle graph, the central angle is proportional to the size of the number being displayed. Here, 122 of 500 selected football. Since the total angle of a circle is 360°, that fraction is ...

(122/500)×360° = 87.84° ≈ 88°

7 0

3 years ago

I forgot how to do this n they didn’t put an example help me lol

lyudmila [28]

Answer:

60 $m^2$

Step-by-step explanation:

First, find the area of the square as it the missing piece wasn't missing.

8 x 9 = 72 $m^2$

Then, find the area of the missing section.

3 x 4 = 12 $m^2$

Finally, subtract 12 $m^2$ from 72 $m^2$ and you get 60 $m^2$

3 0

3 years ago

i need help please! I think I know the answer but for some reason my brain's telling me that it's wrong so if someone could expl

Ivenika [448]

Considering the slopes of the segments, the correct option is:

D. No, because the triangle ABC doesn't have a pair of perpendicular sides.

<h3>When are lines parallel, perpendicular or neither?</h3>

The slope, given by <u>change in y divided by change in x</u>, determines if the lines are parallel, perpendicular, or neither, as follows:

If they are equal, the lines are parallel.

If their multiplication is of -1, they are perpendicular.

Otherwise, they are neither.

Here, we have to find if there are perpendicular segments, that is, if two slopes multiplied have a value of -1, then:

mAB = (-7 - 9)/(11 - 1) = -8/5.

mAC = (3 - 9)/(-9 - 1) = 3/5.

mBC = (3 - (-7))/(-9 - 11) = -1/2.

No sides are perpendicular, hence option D is correct.

More can be learned about slopes at brainly.com/question/20847660

#SPJ1

6 0

2 years ago