1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Basile [38]
3 years ago
5

Simplify

20%20%7D%7B%5Cfrac%7B1%7D%7B3%7Dof2%5Cfrac%7B2%7D%7B5%7D%20%20%7D" id="TexFormula1" title="\frac{2\frac{1}{5}-1\frac{1}{2}+1\frac{7}{10} }{\frac{1}{3}of2\frac{2}{5} }" alt="\frac{2\frac{1}{5}-1\frac{1}{2}+1\frac{7}{10} }{\frac{1}{3}of2\frac{2}{5} }" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0
Answer:
3

You need to first subtract everything on the numerator by changing the fractions in the numerator. Each fraction should have a similar denominator. You should end up getting 24/10, simplifying it down to 12/5. After that you multiply the fractions in the denominator part, due to the key word “of” indicating that you need to multiply. Once you do that you have your numerator and denominator simplified down from each equation, you then simplify down further.
You might be interested in
Luiza is jumping on a trampoline.
lyudmila [28]

Answer:

The second time when Luiza reaches a height of 1.2 m = 2 08 s

Step-by-step explanation:

Complete Question

Luiza is jumping on a trampoline. Ht models her distance above the ground (in m) t seconds after she starts jumping. Here, the angle is entered in radians.

H(t) = -0.6 cos (2pi/2.5)t + 1.5.

What is the second time when Luiza reaches a height of 1.2 m? Round your final answer to the nearest hundredth of a second.

Solution

Luiza is jumping on trampolines and her height above the levelled ground at any time, t, is given as

H(t) = -0.6cos⁡(2π/2.5)t + 1.5

What is t when H = 1.2 m

1.2 = -0.6cos⁡(2π/2.5)t + 1.5

0.6cos⁡(2π/2.5)t = 1.2 - 1.5 = -0.3

Cos (2π/2.5)t = (0.3/0.6) = 0.5

Note that in radians,

Cos (π/3) = 0.5

This is the first time, the second time that cos θ = 0.5 is in the fourth quadrant,

Cos (5π/3) = 0.5

So,

Cos (2π/2.5)t = Cos (5π/3)

(2π/2.5)t = (5π/3)

(2/2.5) × t = (5/3)

t = (5/3) × (2.5/2) = 2.0833333 = 2.08 s to the neareast hundredth of a second.

Hope this Helps!!!

4 0
2 years ago
Reasoning : Why is the numerator greater than
Digiron [165]

Answer:

See the explanation

Step-by-step explanation:

When the numerator is less than the denominator, the result is always less than 1, that is 0. something and this will give a percentage less than 100, but when the numerator is greater than the denominator, th result is greater than 1, and any figure greater than 1 gives a percentage that is greater than 100

example

Numerator >Denominator

=4/2*100

=2*100

=200%

Numerator <Denominator

=2/4*100

=0/5*100

=50%

5 0
2 years ago
PLEASE ANSWERRRRRRRR
hram777 [196]

Answer:

its the steepness of two numbers on a graph - measures the steepness of the line. (what a slope is)

 y=40x+10

Step-by-step explanation:

y=mx+b

6 0
3 years ago
A sociologist wants to determine if the life expectancy of people in africa is less than the life expectancy of people in asia.
Colt1911 [192]

Answer:

The sample statistics are attached.

First, we need to determine the hypothesis.

The null hypothesis should be: H_{o} : u_{africa} \geq u_{asia}.

The alternative hypothesis should be: H_{a}: u_{africa}

The next step is about calculating the<em> t statistics </em>based on the samples. This <em>t test </em>will give the probability value or p-value, which determines if there's enough to reject the null hypothesis. The formula we need to use to find the t-value is: t=\frac{x_{1}-x_{2}  }{\sqrt{\frac{s_{1} ^{2} }{n_{1} } +\frac{s_{2} ^{2} }{n_{2} } } }

Replacing all the values into the formula, we have:

t=\frac{52.4-58.1}{\sqrt{\frac{(7.4)^{2} }{45}+\frac{(8.8)^{2} }{35}  } } \\t=\frac{-5.7}{\sqrt{1.2+2.2} } =\frac{-5.7}{1.8} =-3.2

Therefore, the t-value is -3.2.

Now, we using a level of significance of 0.01, and a degree of freedom (df) of 34, we use the t-table to find the p-value for this results. (df = N -1; in this case, we take the smaller sample, which is 35, giving us 34 of df).

Therefore, according to the table attached, <em>the p-value is less than 0.01,</em> which is less than our level of significance. This result means that the null hypothesis is rejected. In other words, there's enough evidence to say that <em>the life expectancy of people in Africa is less than the life of expectancy of people in Asia.</em>

<em></em>

3 0
3 years ago
What is the volume of the rectangular prism below? *
horsena [70]

Answer:

Step-by-step explanation:

184 in *2

6 0
3 years ago
Read 2 more answers
Other questions:
  • Leila started a savings account to buy a new bike. She started with some money her grandmom gave her and added the same amount e
    8·1 answer
  • 6 students share 4 bagels equally. How many pieces does each person get? (p.s thanks to everyone who answers)
    5·2 answers
  • WILL GIVE BRAINLIEST TO BEST ANSWER! HELP ASAP!
    7·1 answer
  • Evaluate each expression if a=4, b=6 and c=3<br><br> 5b-6c
    5·2 answers
  • I need help with this:(
    10·1 answer
  • 12) 5.8+ 7 what is the answer am not sure​
    12·2 answers
  • Which figure shows a reflection of ​pre-image QRS​ over the line t?
    8·1 answer
  • Help! I’ll give brainliest if I can!
    12·1 answer
  • Simplify<br>2x + x + x + 2y x 3y x y​
    11·1 answer
  • Factors that are greater than 1/2 but less than one
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!