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nikdorinn [45]
2 years ago
15

Evaluate 8.3v + 7.5w when v = 3 and w = 4

Mathematics
2 answers:
ale4655 [162]2 years ago
6 0

Answer:

54.9

Step-by-step explanation:

8.3 * 3 = 24.9

7.5 * 4 = 30

24.9 + 30 = 54.9

Dimas [21]2 years ago
3 0
The answer would be 54.9

8.3(3) + 7.5(4)

24.9 + 30 = 54.9
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Bobby will buy coffe and hot chocolate for his co-workers each cup of coffe costs $2.25 and each cup of hot chocolate costs $1.5
snow_lady [41]
He buys three cups of hot choclate cause 1.50*3= 4.50
and he buys 5 cups of coffe cause 2.25*5=11.25
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3 0
3 years ago
Written as a simplified polynomial in standard form, what is the result when (3x+7)^2 is subtracted from 3?
nadezda [96]

Given:

(3x+7)^2 is subtracted from 3.

To find:

The result of the given statement in the standard form of the polynomial.

Solution:

We need to find the result when (3x+7)^2 is subtracted from 3.

So, the resulted polynomial can be written as:

P(x)=3-(3x+7)^2

On simplification, we get

P(x)=3-((3x)^2+2(3x)(7)+(7)^2)               [\because (a+b)^2=a^2+2ab+b^2]

P(x)=3-(9x^2+42x+49)

P(x)=3-9x^2-42x-49

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Therefore, the resulted polynomial in standard form is -9x^2-42x-46.

7 0
2 years ago
Find the surface area.
denpristay [2]

Step-by-step explanation:

a rectangular prism (like this brick) has the same basic structure as a cube (like a die) : it has 6 sides.

while a die has 6 equal sides, a rectangular prism has 3 pairs of equal sides :

top and bottom

left and right

front and back

all we have to do is calculate the areas of the 6 rectangles and add them up. that's it.

your remember, the area of a rectangle is

length × width

in our case we have

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left and right : 2.5×5 × 2 = 12.5×2 = 25 in²

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57.5 + 25 + 115 = 197.5 in²

5 0
2 years ago
Factor completely. 27x^3-12x
grandymaker [24]
You will have to take 3x common from both terms and your ans should look like this,
3x(9x^2-4)
6 0
3 years ago
Read 2 more answers
X+1½= 3 ⅓<br>What is x?​
sdas [7]

Answer:

1 5/6

Step-by-step explanation:

3 0
3 years ago
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