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
sveta [45]
3 years ago
9

Help please!! Thank you :)

Mathematics
1 answer:
Softa [21]3 years ago
3 0
My answer that i have gotten is 280
You might be interested in
Math question #1 please show steps
-Dominant- [34]

Answer:

C

Step-by-step explanation:

An approximation of an integral is given by:

\displaystyle \int_a^bf(x)\, dx\approx \sum_{k=1}^nf(x_k)\Delta x\text{ where } \Delta x=\frac{b-a}{n}

First, find Δx. Our a = 2 and b = 8:

\displaystyle \Delta x=\frac{8-2}{n}=\frac{6}{n}

The left endpoint is modeled with:

x_k=a+\Delta x(k-1)

And the right endpoint is modeled with:

x_k=a+\Delta xk

Since we are using a Left Riemann Sum, we will use the first equation.

Our function is:

f(x)=\cos(x^2)

Therefore:

f(x_k)=\cos((a+\Delta x(k-1))^2)

By substitution:

\displaystyle f(x_k)=\cos((2+\frac{6}{n}(k-1))^2)

Putting it all together:

\displaystyle \int_2^8\cos(x^2)\, dx\approx \sum_{k=1}^{n}\Big(\cos((2+\frac{6}{n}(k-1))^2)\Big)\frac{6}{n}

Thus, our answer is C.

*Note: Not sure why they placed the exponent outside the cosine. Perhaps it was a typo. But C will most likely be the correct answer regardless.

5 0
3 years ago
Please help me , fast
Vesnalui [34]

Answer:

0.3 with the hat ? the answer is first no, then it's a repeated decimal.

Step-by-step explanation:

5 0
2 years ago
A tile is chosen at random from a bag containing the following tiles: 7 blue, 3 green, 6 yellow, and 5 purple. Let P be the prob
weeeeeb [17]

Answer:

P(blue) = 0.33

P(green) = 0.14

P(purple) = 0.24

P(yellow) = 0.29

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, we have that:

7+3+6+5 = 21 tils.

7 of them are blue. So

P(blue) = 7/21 = 0.33

3 of them are green. So

P(green) = 3/21 = 0.14

6 of them are yellow. So

P(yellow) = 6/21 = 0.29

5 of them are purple. So

P(purple) = 5/21 = 0.24

3 0
3 years ago
Read 2 more answers
Help please this is my last one then I’m done and o get to do whatever I want because I’m done with my homework but I need this
Alexxandr [17]

Answer:

The answer is 4 + 3/6 + 2/6

Step-by-step explanation:

3 0
3 years ago
Someone please help meee
zzz [600]
B = -16
m = (-15-(-16))/18-0 = 1/18
y= 1/18x - 16
6 0
3 years ago
Other questions:
  • Suppose that 18 red beads, 12 yellow beads, eight blue beads, and 12 black beads are to be strung in a row. how many different a
    7·1 answer
  • The butcher sold 63.8 pounds of meat on Monday. He sold 25.3 pounds more than that on Tuesday. On Wednesday, he sold 14.5 pounds
    8·1 answer
  • Elimination <br><br> 6x-6y=0<br> -6x-3y=27
    9·1 answer
  • A rectangle has a perimeter of 80 cm. If its width is x, express its length and area in terms of x, and find the maximum area.
    7·1 answer
  • Multiply please and thank u
    15·1 answer
  • What is the answer ?? Need help plis
    11·2 answers
  • The equation of a circle is
    11·1 answer
  • A rectangular prism with a volume of 5 cubic units is filled with cubes with side lengths of 1/3 unit how many unit cubes does i
    9·1 answer
  • Please help I really need it!! Answer for both
    13·1 answer
  • Which of the following statements would not translate to the equation 14 ÷ x = -7?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!