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Sedbober [7]
3 years ago
6

EXPERTS/ACE/GENIUSES PLZ HELP

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
6 0
Sqrt(144) = 12
 so that is the rational number
 Answer is C

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True or False
Marta_Voda [28]

Answer:

false

Step-by-step explanation:

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5 0
3 years ago
If mZDCB = 140°, then mZACD = [?]° !!!PLS HELP I WILL MARK BRAINLIEST !!!
Readme [11.4K]

Answer:

40°

Step-by-step explanation:

  • m\angle DCB +m\angle ACD = 180\degree (Linear pair angles)

  • \implies 140\degree +m\angle ACD = 180\degree

  • \implies m\angle ACD = 180\degree-140\degree

  • \implies m\angle ACD = 40\degree
5 0
2 years ago
Evaluate the factorial expression.
antoniya [11.8K]

Answer:

6

Step-by-step explanation:

(8 - 5)!

We still follow PEMDAS

Parentheses first

3!

Then the factorial

3*2*1

6

3 0
3 years ago
In a 45-45-90 triangle, what is the length of the hypotenuse when the length of one of the legs is 11 in.?
slavikrds [6]
Part A)<span>In a 45-45-90 triangle, what is the length of the hypotenuse when the length of one of the legs is 11 in.?

we know that
</span>cos 45°=√2/2
[he length of the hypotenuse]=11/cos 45-----------> 11/(√2/2)----> (11*2)/√2
=22/√2-------> 11√2 in

the answer Part A) is 11√2 in

Part B) <span>What is the exact value of sin 45° ?
</span>
we know that
sin 45°=11/(11√2)-------> 1/√2---------> (1/√2)*(√2/√2)-----> √2/2
the answer part b) is √2/2

Part C)
<span>What is the area of a regular hexagon with a side length of 4 m?

we know that

</span>In case of a regular hexagon <span> each of the six triangles that are formed by connecting its center with all six vertices is an equilateral triangle with a side equaled to 4 m.
The area of this hexagon is six times greater than the area of such a triangle
</span>
In an equilateral triangle with a side d<span> 
the altitude </span>h can be calculate from the Pythagorean Theorem as
h²=d²−(d/2)²=(3/4)d²
<span>Therefore, 
</span><span>h=d<span>√3/2

</span></span><span>Area of such a triangle is
</span>A=d*h/2------------> d²*√3/4
From this the area of the regular hexagon with a side d<span> is
</span>S=6*A----------> d²3√3/2
for d=4 m
S=4²3√3/2------> 24√3 m²------------> 41.57 m²

the answer Part C) is 41.57 m²

Part D) <span>In a 30-60-90 triangle, what is the length of the hypotenuse when the shorter leg is 5 cm?
</span>[he length of the hypotenuse]=5/sin 30--------> 5/(1/2)---------> 10 cm

the answer part D) is 10 cm

5 0
3 years ago
Mae Ling earns a weekly salary of $315 plus a 5.5% commission on sales at a gift shop. How much would she make in a work week if
Alecsey [184]

She would make $573.5 in a work if she sold $4,700 worth of merchandise

Step-by-step explanation:

The given is:

  • Mae Ling earns a weekly salary of $315 plus a 5.5% commission on sales at a gift shop
  • She sold by $4,700

We need to find how much she would make in a work week

∵ Mae Ling earns a weekly salary of $315

∵ She earns a 5.5% commission on sales

∵ She sold by $4,700 in that week

- Add $315 to the product of 5.5% and $4,700

∴ She made = 315 + (5.5% × 4,700)

∵ 5.5% = 5.5 ÷ 100 = 0.055

∴ She made = 315 + (0.055 × 4,700)

∴ She made = 315 + 258.5

∴ She made = 573.5

She would make $573.5 in a work if she sold $4,700 worth of merchandise

Learn more:

You can learn more about word problem in brainly.com/question/3950386

#LearnwithBrainly

8 0
3 years ago
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