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1 year ago

10

AREA UNDER A CURVE will mark brainiest

1 answer:

Andrej [43]1 year ago

7 0

Answer: 3 units²

Step-by-step explanation: The area of a triangle is 1/2 (Bh); 1*1= 1 (1/2)= 1/2 units². For the other shape, I cut it into a square and another triangle. The square area is length times width; 1*1= 1 units². The final triangle is 3*1= 3*1/2= 1.5 units². Lastly you add all the areas together: 1.5+0.5+1= 3 units²

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Evaluate expression -16 squared and write the result in form a + bi

coldgirl [10]

Writing it in the form of a+bi we get 0+4i

Step-by-step explanation:

We need to evaluate expression -16 squared and write the result in form a+bi

The given expression is: $\sqrt{-16}$

We know that $\sqrt{-1}=i$

We know that 16= 4x4 = 4^2

Putting values:

$\sqrt{-16}=\sqrt{-1}\sqrt{16}\\=\sqrt{4^2}i\\=4i$

So, Writing it in the form of a+bi a=0 and b=4 so, 0+4i

Keywords: Complex Numbers

Learn more about Complex Numbers at:

#learnwithBrainly

8 0

2 years ago

Is 41/50 closer to 9/10 or 10/11

Artist 52 [7]

41/50 = 0.82
9/10 = 0.9
10/11 = 0.91

So 41/50 is closer to 9/10

7 0

2 years ago

5(a + 6)=<br><br>1. 5a -30<br>2. 5a+6<br>3. 5a+30<br>4. a+30

lord [1]

Answer:

3

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Suppose you purchase 3 identical T-shirts and a hat. The hat cost $19.75 and you spend $56.50 in all. How much does each t-shirt

katovenus [111]

Each shirt is $12.25. subtract 19.75 from 56.50 then divide it by 3

3 0

2 years ago

Read 2 more answers

If f(x) = ex − 1, 0 ≤ x ≤ 2, find the riemann sum with n = 4 correct to six decimal places, taking the sample points to be midpo

Pani-rosa [81]

The Left Riemann sum uses the left endpoints of a subinterval:

$\int_{a}^{b}f(x)dx\approx \bigtriangleup x (f(x_0)+f(x_1)+2f(x_2)+...+f(x_{n-2}+f(x_{n-1})),where \bigtriangleup x=\frac{b-a}{n}$

We know that a=0, b=2, and n=4.

$\bigtriangleup x=\frac{b-a}{n}=\frac{2-0}{4}=\frac{1}{2}$

Divide the interval [0,2] into 4 subintervals of length $\bigtriangleup x=\frac{1}{2}$ .

$a=[0,1/2],[1/2,1],[1,3/2],[3/2,2]$

$f(x_0)=f(a)=f(0)=0$

$f(x_1)=f(1/2)= 0.64872$

$f(x_2)=f(1)=1.71828$

$f(x_3)=f(3/2)=3.481689$

$\int_{0}^{2}f(x) dx= 1/2(0+0.64872+1.71828+3.481689)=2.9243$

Thus the Riemann sum of the given function $f(x)=e^x-1$ as 2.9243.

8 0

3 years ago