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3 years ago

BRAINLIEST BRAINLIEST BRAINLIEST Find the value of f(-6)

Mathematics

2 answers:

Airida [17]3 years ago

3 0

Answer:

-6f

Step-by-step explanation:

sp2606 [1]3 years ago

3 0

Answer:

The absolute value of f(-6) is 6

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A landscaper, who just completed a rectangular flower garden measuring 15 feet in length by 7 feet in width, orders 1 cubic ya

grin007 [14]

The width of the border will be 0.1648... ft or 1.9786... inches.

Explanation

Lets assume, the width of the border is $x$ ft.

The rectangular garden is 15 ft in length and 7 ft in width. So, the area of the garden $=(15*7)ft^2= 105 ft^2$

Now, the length of the garden including border $=(15+2x) ft$ and the width of the garden including border $=(7+2x) ft$

So, the area of the garden including the border $= (15+2x)(7+2x) ft^2$

Thus the area of the border $=[(15+2x)(7+2x)-105] ft^2$

Total amount of premixed cement needed is 1 yard³ = 27 ft³

As the depth of the border is 44 inches or $(\frac{44}{12})ft$ or $(\frac{11}{3})ft$ , so....

$\frac{11}{3}[(15+2x)(7+2x)-105] = 27\\ \\ 11(105+44x+4x^2 -105)=81\\ \\ 11(4x^2+44x)=81\\ \\ 44x^2+484x-81=0$

Using quadratic formula....

$x= \frac{-484+/-\sqrt{484^2-4(44)(-81)}}{2(44)}\\ \\ x= \frac{-484+/-\sqrt{234256+14256}}{88}\\ \\ x= \frac{-484+/-\sqrt{248512} }{88}\\ \\ x= 0.1648...$

(Negative value ignored)

So, the width of the border $=0.1648...ft= (0.1648...*12)inches= 1.9786...inches$

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3 years ago

-47+-58 order of operations

kicyunya [14]

Answer: -105

Step-by-step explanation:

7 0

3 years ago

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Ksenya-84 [330]

Option D‍‍‍‍‍‍‍‍‍‍‌‍‌

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7 0

3 years ago

Find the equation of the straight line which is perpendicular to the straight line 3x+4y=12 such that perpendicular distance fro

Effectus [21]

Answer:

Step-by-step explanation:

First get the slope of the given line;

Given the equation of the line 3x+4y=12

Rewrite in standard form y = mx+c where m is the slope;

3x+4y=12

4y = -3x + 12

y = -3x/4 + 12/4

y = -3x/4 + 3

Hence the slope of the given line is -3/4

Since the required line is perpendicular to this line, the slope of the required line will be M = -1/(-3/4) = 4/3

Get the equation:

Substitute M = 4/3 and the point (3,2) into the point slope equation of a line as shown;

y-y0 = m(x-x0)

y - 2 = 4/3(x-3)

Cross multiply

3(y-2) = 4(x-3)

3y - 6 = 4x - 12

3y - 4x = -12 + 6

3y-4x = -6

Hence the required equation of the line is 3y-4x = -6

6 0

3 years ago

A building lot in a city is shaped as a 30 degrees, -60 degrees, -90 degrees triangle. The side opposite the 30 degrees angle me

satela [25.4K]

If you want to solve this problem on your own, you could just view my answers:

a. 41 square root of 3

b. hypotenuse= 41x2= 82 ft.

c. sine: 41/82-.5

cos: 41sqr. rt. 3/82= .8660

tan: 41/ 41 square root 3= .5774

I hope my answers has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

6 0

3 years ago