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
kati45 [8]
3 years ago
10

Please help will give brainliest if you give proper answer

Mathematics
2 answers:
Mamont248 [21]3 years ago
5 0
I) B

ii) D

iii) C

iv) B

v) D

sorry didnt notice u posted the correct ans already!
atroni [7]3 years ago
3 0
On IV the answer is C
You might be interested in
HELPPPPPPP PLEASEEEEEEEEEEE
Inessa [10]

Answer:

y=-1

Step-by-step explanation:

it is a straight line graph with no gradient therefore no X value. It crosses the y axis at -1

8 0
3 years ago
the number of employees for a certain company has been decreasing each year by 2% if the company currently has 870 employees and
Readme [11.4K]

Step-by-step explanation:

Number of employees in 9 years

= 870 * (1 - 0.02)⁹

= 870 * (0.98)⁹

≈ 725 employees.

8 0
3 years ago
f(x) = 3 cos(x) 0 ≤ x ≤ 3π/4 evaluate the Riemann sum with n = 6, taking the sample points to be left endpoints. (Round your ans
Kruka [31]

Answer:

\int_{0}^{\frac{3 \pi}{4}}3 \cos{\left(x \right)}\ dx\approx 3.099558

Step-by-step explanation:

We want to find the Riemann sum for \int_{0}^{\frac{3 \pi}{4}}3 \cos{\left(x \right)}\ dx with n = 6, using left endpoints.

The Left Riemann Sum uses the left endpoints of a sub-interval:

\int_{a}^{b}f(x)dx\approx\Delta{x}\left(f(x_0)+f(x_1)+2f(x_2)+...+f(x_{n-2})+f(x_{n-1})\right)

where \Delta{x}=\frac{b-a}{n}.

Step 1: Find \Delta{x}

We have that a=0, b=\frac{3\pi }{4}, n=6

Therefore, \Delta{x}=\frac{\frac{3 \pi}{4}-0}{6}=\frac{\pi}{8}

Step 2: Divide the interval \left[0,\frac{3 \pi}{4}\right] into n = 6 sub-intervals of length \Delta{x}=\frac{\pi}{8}

a=\left[0, \frac{\pi}{8}\right], \left[\frac{\pi}{8}, \frac{\pi}{4}\right], \left[\frac{\pi}{4}, \frac{3 \pi}{8}\right], \left[\frac{3 \pi}{8}, \frac{\pi}{2}\right], \left[\frac{\pi}{2}, \frac{5 \pi}{8}\right], \left[\frac{5 \pi}{8}, \frac{3 \pi}{4}\right]=b

Step 3: Evaluate the function at the left endpoints

f\left(x_{0}\right)=f(a)=f\left(0\right)=3=3

f\left(x_{1}\right)=f\left(\frac{\pi}{8}\right)=3 \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}=2.77163859753386

f\left(x_{2}\right)=f\left(\frac{\pi}{4}\right)=\frac{3 \sqrt{2}}{2}=2.12132034355964

f\left(x_{3}\right)=f\left(\frac{3 \pi}{8}\right)=3 \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}=1.14805029709527

f\left(x_{4}\right)=f\left(\frac{\pi}{2}\right)=0=0

f\left(x_{5}\right)=f\left(\frac{5 \pi}{8}\right)=- 3 \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}=-1.14805029709527

Step 4: Apply the Left Riemann Sum formula

\frac{\pi}{8}(3+2.77163859753386+2.12132034355964+1.14805029709527+0-1.14805029709527)=3.09955772805315

\int_{0}^{\frac{3 \pi}{4}}3 \cos{\left(x \right)}\ dx\approx 3.099558

5 0
3 years ago
What is the equivalent to 4(4a+5)
____ [38]

Use the distributive property.

4(4a + 5) = 4 * 4a + 4 * 5 = 16a + 20

Answer: 16a + 20

3 0
3 years ago
Another question about angles
zvonat [6]

Answer:

ㄥBEC=70;ㄥABE=160

Step-by-step explanation:

(x-5)+(3x-5)+90=180

x-5+3x-5+90=180

4x+80=180

4x=100

x=25

ㄥBEC=3*25-5=70

ㄥABE=180-(25-5)=160

3 0
3 years ago
Other questions:
  • Find the percent of increase from 1.5 inches to 6 inches​
    6·1 answer
  • Given: 3x + y = 1.<br> Solve for y.<br> O y=-3x + 1<br> O y=-3x - 1<br> O y = 3x - 1
    15·2 answers
  • What is the value for x in the equation 3/4x-1/2(2-1/2x)=1/3
    12·1 answer
  • Find the value of x.
    5·1 answer
  • What is the slope of the line passing through the points (1,−5) and (4,1)?
    10·1 answer
  • 4. Divide, using synthetic division: 16x^3 +80x^2+x+5/x+5
    10·1 answer
  • Any help? I need to describe the change of the equation, in terms of it getting thinner (&gt;) or wider (&lt;). I don't exactly
    10·1 answer
  • Brainly isn't working ​
    10·2 answers
  • 16^3x+8^x+6<br><br>Could you please give me the steps as well for this problem? ​
    15·1 answer
  • How many solutions does this equation have? -5(4 - x) = -5x + 20
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!