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aksik [14]
4 years ago
11

Need help on #15 don't want to fail

Mathematics
1 answer:
11111nata11111 [884]4 years ago
4 0
That one is super easy i believe you can get that !!
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What is the exact value of the expressions the square root of 180 - the square root of 125 + the square root of 5? Simplify if p
Paraphin [41]

So for this, we will be simplifying √180 and √125 using the product rule of radicals (√ab = √a * √b)


Starting with √180: \sqrt{180}=\sqrt{10} *\sqrt{18} =\sqrt{5} *\sqrt{2}*\sqrt{9} *\sqrt{2}=3*2*\sqrt{5} =6\sqrt{5}


Now with √125: \sqrt{125}=\sqrt{25}*\sqrt{5} =5\sqrt{5}



Now that we have our simplified radicals, our equation looks like this: 6√5 - 5√5 + √5 . Combine everything, and your answer will be 2√5.

7 0
4 years ago
A bicycle trail has the shape of a circle has a diameter of 2 miles Michelle bike around the trail how far did Michelle bike
dezoksy [38]

Answer:

6.28 miles

Step-by-step explanation:

How far Michelle bike around the bicycle trail is the circumference or perimeter of bicycle trail.

This is given by:

C = \pi \: d

where d=2 miles is the diameter of the bicycle trail.

We substitute to get:

C = \pi \: \times  2 = 2\pi

C = 6.28

Therefore she travelled approximately 6.28 miles

8 0
3 years ago
Jimmy and his family took a three-day trip. They drove 198 miles on the first day, 150 miles on the second day, and 210 miles on
MAVERICK [17]
The average driving speed would be 62 because you add 198, 150, and 210 and divide the total by 9.

Hope this helped :)
8 0
3 years ago
Read 2 more answers
Chris works at a bakery. He bakes 14 loaves of banana bread. He sells 8 loaves to customers. Then he cuts the
Anvisha [2.4K]

Answer:

42 slices

Step-by-step explanation:

7 per loaf times 6 extras is 42

8 0
3 years ago
A person 6 feet tall standing 18 feet away from a lamppost casts a 9 foot shadow. When the same person moves 4 feet farther from
Len [333]

Answer:

<h2>12 feet 8 inch long cast a shadow</h2>

Step-by-step explanation:

A person 6 feet tall standing 18 feet away a lamppost cast a 9 foot shadow.

than move 4 feet than total distance is 22 feet  

According to trigonometry rule make 30 degree angle

tan\left ( 30\ \right )^{o}=\frac{p}{b}

\left ( \frac{1}{\sqrt{3}} \right )=\left ( \frac{x}{18+4} \right )

or

x\sqrt{3}=22

than

x=\frac{22}{\sqrt{3}}

=12feet 8 inch answer

3 0
4 years ago
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