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2 years ago

It’s 11:50 and I’m stuck in this question

Mathematics

1 answer:

Vika [28.1K]2 years ago

5 0

Answer:

$7.50

Step-by-step explanation:

3/4's of 60 is 15 and half of 15 is 7.50

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Does the function f(x) = 2x^2− 6x + 9 have a minimum or a maximum? Identify its value.

exis [7]

Answer:

minimum value of function is $\frac{45}{8}$ .

Step-by-step explanation:

Given function represents a parabola.

Now, here coefficient of $x^{2}$ is positive , so the parabola will be facing upwards and thus the function will be having a minimum.

Now, as we know that minimum value of a parabolic function occurs at

x = $\frac{-b}{4a}$ .

Where , b represents the coefficient of x and a represents the coefficient of $x^{2}$ .

here, a = 2 , b = -6

Thus $\frac{-b}{4a}$ = $\frac{6}{8}$

= $\frac{3}{4}$

So, at x = $\frac{3}{4}$ minimum value will occur and which equals

y = 2× $\frac{9}{16}$ - $\frac{18}{4}$ + 9 = $\frac{45}{8}$ .

Thus , minimum value of function is $\frac{45}{8}$ .

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2 years ago

Last year, sales at Company X were 10% greater in February than in January, 15% less in March than in Feb, 20% greater in April

Svetlanka [38]

Answer:

d. May

Step-by-step explanation:

Working through the chain, we have ...

Feb = 1.10×Jan

Mar = 0.85×Feb = 0.935×Jan

Apr = 1.20×Mar = 1.122×Jan

May = 0.90×Apr = 1.0098×Jan

Jun = 1.05×May = 1.06029×Jan

The multiplier that is closest to 1 is 1.0098, so May has sales closest to January.

_____

The percentage increase or decrease can be converted to a multiplier by adding it to 1. If p% is the percentage change, then adding it to an original value looks like ...

original + p% × original = original × (1 +p%) . . . . . . . distributive property

And p% translates to a decimal number by replacing % with /100 or ×0.01.

10% increase: original × (1 + 10/100) = original × 1.10

15% decrease: original × (1 - 15/100) = original × 0.85

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3 years ago

What is the distributive property of 4 × 14

xxTIMURxx [149]

4x10+4x4 is an example

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2 years ago

There are two similar packages. The ratio of the volumes is 8:125. Determine the dimensions of the bigger package. The dimension

GREYUIT [131]

Step-by-step explanation:

since packages are similarsimilar packages. The ratio of the volumes is 8:125. Determine the dimensions of the bigger package. The dimensions of the smaller package are... Height= 45cm, Length= 80cm, and Width= 25cm.

Length of bigger package = 80×125/8=1250cm

Width of bigger package =25×125/8=390.625cm

Height of bigger package =45×125/8=703.125cm

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2 years ago

What is the meaning of the unknown factor and quotient

konstantin123 [22]

Unknown factor is multiplication and then quotient is division

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3 years ago