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2 years ago

Given f(x) = 2x² + 8x - 4 and g(x) = 5x +6, find 3f(x) – 2g(x).

Mathematics

1 answer:

myrzilka [38]2 years ago

7 0

Step-by-step explanation:

When the problem says 3f(x), it means that you are multiplying f(x) by 3. The same goes for 2g(x).

$3(2x^2+8x-4)= 6x^2+24x-12$

$2(5x+6) = 10x+12$

Now, we subtract f(x) from g(x) after being multiplied.

$(6x^2+24x-12)-(10x+12)$

$6x^2+14x-24$

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Find the slope of the line that passes through the pair of points. (5.3, –2.5), (7.3, –12.5)

astra-53 [7]

Answer:

-5

Step-by-step explanation:

The slope of the line is found by

m = (y2-y1)/(x2-x1)

= ( -12.5 - -2.5)/( 7.3 - 5.3)

= ( -12.5 +2.5)/( 7.3 - 5.3)

= -10 /2

= -5

5 0

3 years ago

Riya is applying mulch to her garden. she applies it at a rate of 250 , 000 cm 3 250,000 cm 3 250, comma, 000, start text, space

Tatiana [17]

The rate in

$\frac{ {m}^{3} }{ {m}^{2} } \: is \:0.25\frac{ {m}^{3} }{ {m}^{2} }$

<h3>How to find rate is riya applying mulch in m^3/m^2 ?</h3>

given that riya applies it at a rate of 250,000 cm^3 of mulch for every m^2 of garden space.

we already know that 1m = 100cm.

so, each side of this cube is 100cm in length.

so, $100 \times 100 \times 100 \: {cm}^{3} \: in \: {m}^{3}$

To find what is the volume in cubic metres.

$\frac{250000}{10000000} = \frac{1}{4} = 0.25 \frac{ {m}^{3} }{ { m}^{2} }$

so, the rate is $0.25 \frac{ {m}^{3} }{ {m}^{2} }$

Learn more about problems on garden, refer :

https://brainly.in/question/50618467

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Disclaimer : This question was given incomplete on portal.Here is complete question.

Question : Riya is applying mulch to her garden.She applies it at a rate of 250,000 cm^3 of mulch for every m^2 of garden space. At what rate is riya applying mulch in m^3/m^2

8 0

1 year ago

Work this out for points

KengaRu [80]

Answer:

oh god

Step-by-step explanation:

(2 + 6/2, 7 + 3/2)

=(4 , 5)

3 0

3 years ago

The perimeter of a square is represented by the expression 32x - 12.8

kow [346]

Answer:

4(8x-3.2)

Step-by-step explanation:

8 0

3 years ago

For each container of tea, McKenzie uses 16 tea bags and 3 cups of sugar. If McKenzie uses 64 tea bags, how many cups of sugar w

cestrela7 [59]

So tis is a ratio 16 is to 3 or 16:3
if use 64 tea bags then how many cups of sugar so
turn 16:3 into fraction
16:3=16/3 or 3/16, it doesn't matter
then you want to find 64:x or 64/x or x/64

we know that 16/3=64/x because it tis an equivalent ratio
so 16/3=64/x
multiply both sdies by (3 times x)
16 times x times 3/3=64 times 3 times x/x
16 times x=64 times 3
16x=192
divide both sdies by 16
x=12
theanswer is 12 cups of sugar

5 0

3 years ago