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2 years ago

F(x)=3x^3+5 and g(x)=-5x-3 find f(-3) and g(7)

Mathematics

2 answers:

mihalych1998 [28]2 years ago

8 0

F(-3) = (3*-3^2) + 5 = 81 + 5 = 86

g(7) = (-5*7) - 3 = -35 - 3 = -38

Arlecino [84]2 years ago

6 0

Answer:

f(-3) = -76

g(7) = 38

Step-by-step explanation:

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BaLLatris [955]

This year
2:7
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3 years ago

Carly is buying deli meat for her lunches this week. Turkey is on sale for $5.80 per pound. If Carly buys 1.25 pounds of turkey,

alisha [4.7K]

Answer:

Carly will have to spend $7.25

Step-by-step explanation:

We know that:

1 pound of turkey = $5.80

To find how much 1.25 pounds of turkey will cost, multiply:

5.80 x 1.25 = 7.25

Therefore, 1.25 pounds of turkey will cost $7.25

I really hope this helps!

-SpaceMarsh

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3 years ago

Read 2 more answers

PLEASE HELP :'))

andreev551 [17]

Answer:

D) 54 cm

Step-by-step explanation:

We can use the Centroid Theorem to solve this problem, which states that the centroid of a triangle is $\frac{2}{3}$ of the distance from each of the triangle's vertices to the midpoint of the opposite side.

Therefore, $R$ is $\frac{2}{3}$ of the distance from $U$ to $V$ , since the latter is the midpoint of the side opposite to $U$ . We know this because $R$ belongs to $UV$ , so $R$ must be $QS$ 's midpoint due to the fact that by definition, the centroid of a triangle is the intersection of a triangle's three medians (segments which connect a vertex of a triangle to the midpoint of the side opposite to it).

We can then write the following equation:

$VR=\frac{1}{3} UV$

Substituting $VR = 18$ into the equation gives us:

$18=\frac{1}{3} UV$

Solving for $UV$ , we get:

$18=\frac{1}{3} UV$

$3 *18=3*\frac{1}{3}UV$ (Multiply both sides of the equation by $3$ to get rid of $UV$ 's coefficient)

$54=UV$ (Simplify)

$UV=54$ (Symmetric Property of Equality)

Therefore, the answer is D. Hope this helps!

7 0

3 years ago

Given that sinФ = 8/17 and cos Ф < 0:

Gekata [30.6K]

Answer:

1) The terminal side lies in quadrant 2

2) cosФ = -15/17

3) tanФ = -8/15

Step-by-step explanation:

1) First, we should realize that since sinФ = 8/17, it is positive. Thus, Ф must be in quadrants 1 or 2. And since cosФ is negative, Ф must be in quadrant 2 because cos, sin, and tan are all positive in quadrant 1

2) Next, we must realize that the sides given are a 8-15-17 right triangle. And in this case, since sinФ = 8/17, cosФ should be 15/17. But since cosФ is negative, cosФ = -15/17

3) Lastly, tanФ is opposite/adjacent. Since opposite of Ф is 8 and adjacent of Ф is 15, then tanФ should be 8/15, but since Ф is in quadrant 2, then tanФ is -8/15

6 0

3 years ago

Stan's, marks, and wayne's ages are consecutive whole numbers. stan is the youngest, and wayne is the oldest. the sum of their a

White raven [17]

Stan's, Mark's and Wayne's ages are 35 , 36 and 37 years respectively.

Explanation

Stan's, Mark's and Wayne's ages are consecutive whole numbers and Stan is the youngest and Wayne is the oldest.

So, lets assume that Stan's, Mark's and Wayne's ages are $n, n+1$ and $n+2$