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Fofino [41]
3 years ago
6

If f(x)=x^4+3x^3-x^2+6, find f(-3).

Mathematics
1 answer:
docker41 [41]3 years ago
4 0

Answer:

f(-3) = -3

Step-by-step explanation:

Step 1: f(x) means "f of x" and f(-3) means "f of -3", so you have to replace all the "x" letters in the function with the value -3.

f(x)=x^4+3x^3-x^2+6\\f(-3)=(-3)^4+3(-3)^3-(-3)^2+6

Step 2: Apply the exponents. <em>Make sure you remember to put in the -3 and not just 3.</em>

f(-3)=81+3(-27)-9+6

Step 3: Use BEDMAS rules to complete the calculation.

f(-3)=81-81-9+6

f(-3)=-3

Therefore the answer is f(-3) = -3.

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Sixty-five campers arrive. Nine go home early. If 8 people sleep in 1 tent, how many tents will the campers need?
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65-9=56

56 divided by 8 is 7

So they will need 7 tents

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3 years ago
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Karo-lina-s [1.5K]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Base of a cube is a square, and in the given figure it's stated that the measure of each side is " x " ft

Therefore it's Area is equal to : -

  • side \times side

  • x \times x

  • {x}^{2}

Now, since it's Area is given as 1/4 ft², let's equate the Areas to find the measure of each side ~

that is ~

  • {x}^{2}  =  \dfrac{1}{4}

  • x =  \sqrt{ \dfrac{1}{2}  \times  \dfrac{1}{2} }

  • x =  \dfrac{1}{2}  \:  \: feet

It's time to find the volume of cube that is ~

  • (side) {}^{3}

So, let's plug the value of side length (1/2 ft)

Volume is equal to ~

  • {  \bigg(\dfrac{1}{2} \bigg) }^{3}

  • \dfrac{1}{8}  \:  \: ft {}^{3}

Hence, the required 1/8 or 0.125 ft³

I hope it helped ~

\mathrm{✌TeeNForeveR✌}

3 0
3 years ago
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Which expression gives the prime<br> factorization of 80?<br> I need help please..
Alja [10]
The correct answer is actually choice D.
8 0
3 years ago
Help please my moms going to kill me if I don’t get this right
iragen [17]

Answer:

x=-\frac{41}{6}

Step-by-step explanation:

Pay attention to the two tick marks. This indicates that those sides are congruent to each other and so will the angles on the bottom and top. Therefore, we can set up the equation 137+2(-3x+1)=180 and solve for x:

137+2(-3x+1)=180

137+(-6x+2)=180

137-6x+2=180

139-6x=180

-6x=41

x=-\frac{41}{6}

8 0
2 years ago
Given the system of linear equations. -x+y=3 and 2x+y=6 Part A: Use substitution to find the solution to the systems of equation
Juli2301 [7.4K]
-x+y=3
y=x+3

2x + x + 3 =6
3x + 3 = 6
3x = 3
x = 1

-1 + y = 3
y = 4

2(1) + y = 6
2 + y = 6
y = 4

Solution: (1, 4)
8 0
3 years ago
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