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3 years ago

A box contains 6 red and 5 blue marbles. Another box contains 5 red and 8 blue marbles. One box is selected at

Mathematics

1 answer:

dlinn [17]3 years ago

6 0

Answer:

153\286

Step-by-step explanation:

A -box 1

B -box 2

B)- blue ball drawn

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The lengths of two sides of a triangle are 12 inches and 4 inches. Which of the following dimensions is the third side of this t

Anna007 [38]

The triangle inequality requires the third side be in the range
.. 12 -4 ≤ third side ≤ 12 +4
.. 8 ≤ third side ≤ 16 . . . . . . . . . your answer is the number(s) in this range

_____
Some define the triangle inequality using < rather than ≤. Be careful here.

5 0

3 years ago

(8p+7)-(5p+1) subtract

Blizzard [7]

Answer:

Step-by-step explanation:

8p+7−(5p+1)

=8p+7+−1(5p+1)

=8p+7+−1(5p)+(−1)(1)

=8p+7+−5p+−1

=(8p+−5p)+(7+−1)

=3p+6

and thats how you get the answer

---------------------------------

3 0

2 years ago

a horticulturalist is building a fence around a rectangular garden using the side of a building for one side of the enclosure. s

Harman [31]

The garden area is maximum when the enclosure is a square.
If a is the length of the side of the square then the length of the building is also a.
The perimeter length is 4a made up of 81+a feet, so 81+a=4a and 3a=81 making a=27 feet.

5 0

3 years ago

By determining f prime left parenthesis x right parenthesis equals ModifyingBelow lim With h right arrow 0 StartFraction f left

aniked [119]

Answer:

70 is answer

Step-by-step explanation:

Given that a function in x is

$f(x) = 5x^2$

we have to find f'(7)

we know by derivative rule derivative of a function is

$f'(x) = lim_({h-->0}) \frac{f(x+h)-f(x)}{h}$

For finding out at 7 we replace x by 7

$f'(7) = lim_({h-->0}) \frac{f(7+h)-f(7)}{h}$

= $lim\frac{5(7+h)^2-5*7^2}{h} \\= lim \frac{10h*7+h^2}{h} \\= 70+h = 70$

So f'(7) = 70

answer is 70

3 0

3 years ago

Read 2 more answers

Erin is flying a kite. She knows that 260 feet of the kite

lianna [129]

Answer:

100 ft high

Step-by-step explanation:

We know that Erin, the kite, and her friend create a right triangle since the friend is standing directly under the kite and in front of Erin.

Thus, we can use the Pythagorean theorem to find the height of the kite.

We can let the side the distance be at represents Erin and the kite's distance be EK (aka the hypotenuse), the side that represents Erin and her friend's distance be EF and the side that represents the kite and the friend's distance be KF.

The theorem says that a^2 + b^2 = c^2, where a and b are the two shortest sides and c is the hypotenuse.

We already have the measure of the hypotenuse (260 ft) and one of the shorter sides (240), so we have:

$KF^2+240^2=260^2\\KF^2+57600=67600\\KF^2=10000\\\sqrt{(KF^2=10000)} \\KF=100$

7 0

2 years ago