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2 years ago

Evaluate function at the given value using the remainder theorem.

Mathematics

1 answer:

garik1379 [7]2 years ago

5 0

Answer:

Step-by-step explanation:

$f(a)=a^4-2a^3 -10a^2 -7a \\\\f(-2) = (-2)^4-2(-2)^3 -10(-2)^2 -7(-2)\\\\~~~~~~~~~=16-2(-8)-10(4)+14\\\\~~~~~~~~~=30+16-40\\\\~~~~~~~~~=46-40\\\\~~~~~~~~~=6$

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Consider the equations:<br> y=15x-45<br> y=12x+18<br> How many solutions do they have?

Kipish [7]

Answer: One solution

Explanation:

Because the two equation has a different slope and different y intercept

6 0

3 years ago

Read 2 more answers

HELP I REALLY NEED HELP

zepelin [54]

Answer: 72 inches squared

Step-by-step explanation:

So, the real floor of a classroom is 36 feet by 32 feet.

And the scale drawing, has length of the classroom equal to 9 inches.

What is the area in square inches of the floor in the scale drawing

1 foot = 12 inches

The length of the classroom, measured in feet, has been multiplied by 12, to get converted in inches. After that, it has been divided by a number, a proportion, to get to 9 inches.

36feet * 12 / x = 9 inches

432 inches / x = 9 inches

Now, to solve for x, we can cross-multiply

432 inches = 9x inches

Divide 9 inches on both sides.

x = 48

To solve the exercise, we need to calculate the floor's area in the scale drawing.

We have the length = 9 inches.

Now, let's calculate the width

Width = 32 feet * 12 / 48

Width = 384 inches / 48

Width = 8 inches

Area = Length * Width

Area = 9 inches * 8 inches

Area = 72 inches squared

Hope I helped!

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2 years ago

I need all those answers

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

4 :

A - 2 raised to the 5th power

______________________

2 raised to the 3 power

B: 5 raised to the 2nd power x 5 raised to the 3rd power

A: 4 raised to the 6 power

B: i forgot the rest

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3 years ago

What is 3.008 3.825 3.09 and 3.18 ordered from greatest to least?

Firlakuza [10]

Well lets look here at something.
Tenths are the greatest compared to hundredths or thousandths.
So if that is the case We can tell that 3.008 is the least since it only has one value on the end in the thousandths place (all are 3.??? which is why this stays true)
Tenths place > 0.000 (The First 0)
Hundredths place > 0.000 (Second 0)
Thousandths place > 0.000 (Third 0)
Look for the greater values in all of these. Remember tenths is greater than hundredths and hundredths to thousandths.
So we can order it properly > 3.825, 3.18, 3.09, 3.008
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4 years ago

Help!!!! me please the first to answer will get brainliest!!!! please help me<br><br><br>

never [62]

<h3>1 Answer: v = -130</h3>

=============================================================

Explanation:

Because we're given multiple choices to pick from, we can go through each to do trial and error.

For instance, if v = 52, then

v/13 < -7

52/13 < -7

4 < -7

but that's a false statement since 4 is not smaller than -7. Use a number line to see this. You should have -7 to the left of 4, showing that -7 is the smaller value.

Because 4 < -7 is false, this means v/13 < -7 is false when v = 52. This rules out v = 52. You should find that v = 26 and v = -39 won't work for similar reasons.

Only v = -130 works since...

v/13 < -7

-130/13 < -7

-10 < -7

This is true because -10 is to the left of -7 on the number line.

-------------------------------------------------

Another approach:

We have some unknown number v, and we're dividing by 13 to get the expression v/13. To undo this, we multiply both sides by 13

v/13 < -7

13*(v/13) < 13*(-7) .... multiply both sides by 13

v < -91

So any solution to the original inequality must be smaller than -91. This allows us to rule out v = 52, v = 26 and v = -39.

The value v = -130 is smaller than -91, so it satisfies v < -91. Therefore, v = -130 is a solution to the original inequality.

6 0

3 years ago