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alexandr1967 [171]
2 years ago
11

Evaluate the function.

Mathematics
1 answer:
Nimfa-mama [501]2 years ago
7 0

Answer:

-12

Step-by-step explanation:

f ( x) = 2 x 2 + 8 x

Find f(−1)

replace x by its value which is -1

so:

f ( x) =  2 x 2 + 8 x

f ( -1) =  2  (-1)*2 + 8 (-1)

f(-1)= -2*2 + (-8)

f(-1)= -4 -8

f(-1)= -12

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steposvetlana [31]

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Answer:

All these answers are correct. I triple - checked!

Step-by-step explanation:

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6 0
3 years ago
A segment with endpoints A (3, 4) and C (5, 11) is partitioned by a point B such that AB and BC form a 2:3 ratio. Find B.
Dima020 [189]

Answer:

(3.8, 6.8)

Step-by-step explanation:

Point B:

Has coordinates (x,y)

AB and BC form a 2:3 ratio.

This means that:

B - A = \frac{2}{2+3}(C - A)

B - A = \frac{2}{5}(C - A)

We apply this both for the x-coordinate and for the y-coordinate.

x-coordinate:

x-coordinate of A: 3

x-coordinate of C: 5

x-coordinate of B: x

B - A = \frac{2}{5}(C - A)

x - 3 = \frac{2}{5}(5 - 3)

x - 3 = \frac{4}{5}

x = 0.8 + 3 = 3.8

y-coordinate:

y-coordinate of A: 4

y-coordinate of C: 11

y-coordinate of B: y

B - A = \frac{2}{5}(C - A)

y - 4 = \frac{2}{5}(11 - 4)

y - 4 = \frac{14}{5}

y = 2.8 + 4 = 6.8

Thus the correct answer is:

(3.8, 6.8)

7 0
3 years ago
Read 2 more answers
A garden is 4 yards 24 in wide and seven yards write the ratio of width to the length as a fraction in simple form
Serjik [45]
The question is written unclear.
my guess would be 24:7 (24/7)
5 0
3 years ago
Michelle is working on a design for a new building. She has built a model of the building according to the client's specificatio
Snezhnost [94]

Answer:

Step-by-step explanation:

980

6 0
3 years ago
Help please
natta225 [31]
Using V = ⅓[base area×height]
V= ⅓[ (5.5÷4)² × 2.6]
v= ⅓[ 4.92]
v = 1.6m³
8 0
3 years ago
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