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castortr0y [4]
3 years ago
9

Given that F( x ) = x 2 + 2, evaluate F(1) + F(5).

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
8 0

Answer:

30

Step-by-step explanation:

stealth61 [152]3 years ago
3 0

Hi there! :)

Answer:

\huge\boxed{f(1) + f(5) = 30}

Given:

f(x) = x^{2} + 2

Evaluate f(1) + f(5)

Solve for each:

f(1) = (1)^{2} +  2 = 3

f(5) = (5)^{2} + 2 = 27

27 + 3 = 30

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A game room has a floor that is 120 feet by 75 feet.A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet.Wha
erik [133]
We know,
1 unit : 5 feet

so, 120 ft = (120 / 5) units
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        75 ft = (75 / 5) units
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∴ Dimensions of scale drawing is 24 units by 15 units.

8 0
3 years ago
Given the vectors, a=3i+4j, b=-2i+5j, c=10i-j, d=-1/3i+5/2j, find -0.4a-0.3b+0.2d=?
sveta [45]

Answer:

-\frac{2}{3}i - \frac{13}{5}j

Step-by-step explanation:

-0.4(3i + 4i) - 0.3(-2i + 5j) + 0.2(-\frac{1}{3}i + \frac{5}{2}j)

-1.2i - 1.6j + 0.6i - 1.5j - \frac{0.2}{3}i + 0.5j

Converting to fraction form;

-\frac{6}{5}i + \frac{3}{5}i - \frac{1}{15}i - \frac{8}{5}j - \frac{3}{2}j + \frac{1}{2} j

<u>Solving the i part;</u>

\frac{-18i + 9i - i}{15} = -\frac{2}{3}i

<u>Solving the j part;</u>

\frac{-16j-15j+5j}{10} = -\frac{13}{5}j

So -0.4a - o.3b + 0.2d =  -\frac{2}{3}i - \frac{13}{5}j

6 0
3 years ago
Kara counted 32 red pens, 25 blue pens, 7 black pens, and 24 green pens. How many pens did Kara count?
motikmotik

Answer: the answer is 88


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2 years ago
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I think the answer is an hour and 42 minutes
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Answer:

15.2

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