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EleoNora [17]
3 years ago
6

Given the polynomial function below find F(-4) f(x)=2x^ 2 -x + 9

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

45

Step-by-step explanation:

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Find the slope on the line
Alla [95]

Answer:

-1

Step-by-step explanation:

Use Rise/Run and since the line is negative the slope will be negative

8 0
2 years ago
a rectangular blue tile has a length of 4.25 inches and a width of 6.75 inches. a similar tile has a length of 12.75 inches.what
Iteru [2.4K]

Answer:

The width of the red tile would be 2.25 inches.

Step-by-step explanation:

Given blue tile has a length of 4.25 inches, and a width of 6.75inches.

Also, length of similar tile is 12.75 inches.

Let us assume x as the width of red tile.

It is given in the question that both tiles are similar.

So, their area will be the same.

Area of blue tile would be 4.25\times 6.75=28.6875\ inch^2

Area of red tile would be 12.75\times x

The area of blue tile would be equal to area of red tile.

28.6875=12.75\times x

\frac{28.6875}{12.75}=x\\\\x=2.25

So, the width of the red tile would be 2.25 inches.

5 0
3 years ago
Jenny studied the characteristics of two species of bacteria. The number of bacteria of species A, A(t), after t hours is repres
fredd [130]

Answer: D . N(t) = 3 + (0.25t)^3 - 8(1.06)^t

Step-by-step explanation:

Given : Jenny studied the characteristics of two species of bacteria. The number of bacteria of species A, A(t), after t hours is represented by the function,

A(t) = 5 + (0.25t)^3

The number of bacteria of species B, B(t), after t hours is represented by the function, B(t) = 2 + 8(1.06)^t

Then, the difference in the number of bacteria, N(t), of both the species after t hours will be :-

N(t)=A(t)-B(t)\\\\=5 + (0.25t)^3-(2 + 8(1.06)^t)\\\\=5 + (0.25t)^3-2-8(1.06)^t\\\\=5-2 +(0.25t)^3-8(1.06)^t\\\\=3+(0.25t)^3-8(1.06)^t

Hence, the correct answer should be : D . N(t) = 3 + (0.25t)^3 - 8(1.06)^t

7 0
3 years ago
IS THE FOLLOWING A SINUSOID OR NOT
Neko [114]
1. YES 2. NO, correct me if im wrong
5 0
3 years ago
A trapezoid has a height of 10 centimeters. One parallel base has a length of 7 centimeters, and the other parallel base has a l
Papessa [141]

Answer:

I couldn't see the picture it is black

Step-by-step explanation:

the formula for the area of a trapezoid is:

\frac{b1+b2}{2} h

insert 7 for b1, 13 for b2, and 10 for h

\frac{7+13}{2} 10

100

Hope that helps

8 0
2 years ago
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