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seraphim [82]
3 years ago
9

Anyone know the answer ? :(

Mathematics
1 answer:
tangare [24]3 years ago
3 0
<h3>Answer: B  \sqrt{9}*\sqrt{4}</h3>

The rule being used here is \sqrt{x*y}  = \sqrt{x}*\sqrt{y} which is often used to simplify square roots.

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Nate walked 72 city blocks in 48 minutes. At this rate, how many city blocks can he walk in 90 minutes?
stiv31 [10]

Answer:

135 city blocks is the correct answer

Step-by-step explanation:

7 0
3 years ago
Find the value of x in the isosceles triangle shown below.
svp [43]

Answer:

22.18 = x

Step-by-step explanation:

a^2 + (b)^2 = (x/2)^2

a = sqrt(74)

b = 7

x/2 = ?

(74)[^1/2]^2 = 74            

b^2 = 7^2 = 49

74 + 49 = (x/2)^2       Substitute into a^2 + b^2 = c^2

123 = (x/2)^2              Combine like terms

(123^0.5) = x/2           Take the square root of both sides.

11.09 = x/2                  Multiply both sides by 2

11.09*2 = x

22.18 = x                     The full length of the base of the triangle is 22.18

4 0
3 years ago
Read 2 more answers
Find all whole values for y for which the double inequality is true:<br><br><br>a) −5b) 28
kolezko [41]

Answer: -5 ≤ y ≤ 28 or y = -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28

Step-by-step explanation:

This is the double inequality equation:

a ≤ y ≤ b

Plug in your values:

-5 ≤ y ≤ 28

y can be greater than or equal to -5 but has to be less than or equal to 28.

So, here are all of the values:

y = -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28

or

-5 ≤ y ≤ 28

Hope this helps! :)

7 0
3 years ago
Read 2 more answers
What is the measure of angle 2 in degrees?
STALIN [3.7K]

Answer: Angle 2= 82

Step-by-step explanation:

5 0
3 years ago
How to tell when to use sin, cos or tan​
lions [1.4K]

Answer:

Step-by-step explanation:

Keep in mind that these three trig functions can be interpreted as being the ratios of the side lengths of a triangle:

            opposite side

sin x = ----------------------

              hypotenuse

            adjacent side

cos x = ----------------------

              hypotenuse

            opposite side

tan x = ----------------------

             adjacent side

In the case where you have a right triangle and know the lengths of two of its three sides, that knowledge dictates which of the above trig functions to use in "solving the triangle."

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

If, for example, the "opposite side" of a triangle is 3 and the "hypotenuse" is 5, we'd choose to use the sine function to find the angle opposite the "opposite side:"

            opposite side       3 units

sin x = ---------------------- = -------------

              hypotenuse         5 units

Find x by using the inverse sine function:

Angle x = arcsin 3/5 = 0.644 radians or 36.9 degrees.

3 0
3 years ago
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