3 years ago

A number cube with six sides is rolled seven times. The probability of getting a 4 exactly twice is ____

Mathematics

1 answer:

9966 [12]3 years ago

5 0

Answer:

1/6

Step-by-step explanation:

The probability of gettins some number in a cube corresponds to 1/6, the cube has six sides.

P(1) =1/6

P(2) =1/6

P(3)=1/6

P(4)= 1/6

P(5)=1/6

P(6)= 1/6

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A store mixes Kentucky bluegrass worth $12 per pound and chewing fescue worth $16 per pound. The mixture is to sell for $15 per

SashulF [63]

Let the amount of Kentucky Bluegrass be k.
Let the amount of Chewing Fescue be c.
$12k+16c=15\times372$
k+c=372
c=372 - k
12k + 16(372 - k) = 15 * 372 = 5580
12k + 5952 - 16k = 5580
-4k = -372
k = 93 pounds
c = 372 - 93 = 279 pounds

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4 years ago

Find the value of n <br> 0×39=n

slavikrds [6]

0x39=n

anything times zero = zero so that mean n = 0

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3 years ago

The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. If the total cost to carpet an office is $810

dimaraw [331]

Answer:

<h2>11.11 square yard </h2>

Step-by-step explanation:

Step one:

given data

charges=$90

installation=$9 per square yard

total cost of installation= $810

let x represents the number of square feet

Step two:

The expression for the installation cost is given as

810=9x+90------------1

solve for x, collect like terms

810-90=9x

720=9x

divide both sides by 9 we have

x=720/9

x=11.11 square yard

4 0

3 years ago

In ΔKLM, l = 26 cm, k = 56 cm and ∠K=22°. Find all possible values of ∠L, to the nearest degree.

omeli [17]

Answer:

10 degrees

Step-by-step explanation:

sdfsdfs

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=45%3D9%5E%7B%5Csqrt%7Bx%7D%20%7D" id="TexFormula1" title="45=9^{\sqrt{x} }" alt="45=9^{\sqrt{x

timama [110]

Answer:

Step-by-step explanation:

a= b^c << === >> logb(a) = c

a b c

Convert 45 = 9^√x << === >> log9 (45) = √x

1.7324867604 = √x

3.0 = x squared both sides

I used a log calculator on the internet when a Gaggled log calculators

8 0

3 years ago