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quester [9]
2 years ago
8

. A contractor is cutting wood to brace the side of a

Mathematics
1 answer:
lubasha [3.4K]2 years ago
4 0
Split into two right angled triangles
label your sides a, b and c
C always has to be the hypotenuse in a right angled triangle
it doesn’t matter which is a/which is b
a^2+b^2=c^2
we know B and C
A^2= C^2-B^2
C=25
B=15
25^2-15^2=20^2
base=20feet
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Find the volume of the cone. Use 3.14 as an approximation for pi. Round the answer to two decimal places.
grandymaker [24]
Hello there!

<span>Find the volume of the cone. Use 3.14 as an approximation for pi. Round the answer to two decimal places. 
A cone with radius of circular base of 6 centimeters and a height of 7 centimeters. 

</span><span>C. 263.76cm3
</span>
8 0
3 years ago
2,5-[0,2+(-3,7+5)-1,4]
ValentinkaMS [17]

2.5 - (0.2 + (3.7 + 5) - 1.4) \\  = 2.5 - (0.2 + 4.2 - 1.4) \\  = 2.5 - (4.4 - 1.4) \\  = 2.5 - 3 \\  =  - 0.5
7 0
3 years ago
Read 2 more answers
While conducting experiments, a marine biologist selects water depths from a uniformly distributed collection that vary between
aleksandr82 [10.1K]

Answer:

The probability that a randomly selected depth is between 2.25 m and 5.00 m is 0.55.

Step-by-step explanation:

Let the random variable <em>X</em> denote the water depths.

As the variable water depths is continuous variable, the random variable <em>X</em> follows a continuous Uniform distribution with parameters <em>a</em> = 2.00 m and <em>b</em> = 7.00 m.

The probability density function of <em>X</em> is:

f_{X}(x)=\frac{1}{b-a};\ a

Compute the probability that a randomly selected depth is between 2.25 m and 5.00 m as follows:

P(2.25

                               =\frac{1}{5.00}\int\limits^{5.00}_{2.25} {1} \, dx\\\\=0.20\times [x]^{5.00}_{2.25} \\\\=0.20\times (5.00-2.25)\\\\=0.55

Thus, the probability that a randomly selected depth is between 2.25 m and 5.00 m is 0.55.

6 0
3 years ago
Ms Melissa and Ms ryanne went for a walk and they got back at 8:02am their walk was actually 45 minutes what time did they leave
dimaraw [331]

Answer: 7: 17

Step-by-step explanation:

This doesn't really make sense but it's how I do it

8:02 = 7:62

    7:62

<u> -      45</u>

    7: 17

6 0
3 years ago
A rectangle measures 54 feet by 72 feet. What is the length, in feet, of
igomit [66]

length (l) =54

breath (b) =72

l²+b²= diagonal²..........(Pythagoras theorem) and (all sides of rectangle are 90degree)

(54)²+(72)²=diagonal²

2916+5184=diagonal²

8100=diagonal²

90= diagonal.............(taking square root)

length of diagonal is 90ft

i hope it helps

have a nice day and thanks for asking this question

6 0
3 years ago
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