3 years ago

Evaluate the definite integrals

Mathematics

1 answer:

____ [38]3 years ago

8 0

Use substitution on 2nd one and product rule on 1st one perhaps

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What is ‘share £20 in the ratio 2:3?’

Verdich [7]

Answer:

8:12

Step-by-step explanation:

2+3 = 5

20 div 5 = 4

2 times 4 = 8

3 times 4 =12

8:12

3 0

3 years ago

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Show your work please

Aneli [31]

Rise is 3 and run is 3.5 so its 3/3.5

5 0

3 years ago

3X+4Y=-8 -9X-12Y=-10

Yuliya22 [10]

X=−4/3y+−8/3
and
x=−4/3y+10/9

7 0

4 years ago

The diameter of the base of a cone measures 8 units. The height of the cone is 6 units. What is the volume of the cone in terms

Mekhanik [1.2K]

Answer:

V = 32 pi

Step-by-step explanation:

The volume of a cone is

V = 1/3 pi r^2 h

The radius is d/2 = 8/2 = 4

V = 1/3 pi (4)^2 * 6

V = 32 pi

5 0

3 years ago

What is the approximate value of b, rounded to the nearest tenth? Use the law of sines to find the answer. Triangle A B C is sho

Setler79 [48]

Answer:

4.7 units

Step-by-step explanation:

We are given that in triangle ABC

AB= 3 units

Angle ABC=76 degree

Angle CAB=66 degrees

AC=b

We have to find the approximate value of b using sin laws.

We know that sum of angles of a triangle =180 degrees

$\angle CAB+\angle ABC+\angle ACB=180$

$76+66+\angle ACB=180$

$142+\angle ACB=180$

$\angle ACB=180-142=38^{\circ}$

We know that law of sines

$\frac{BC}{Sin A}=\frac{AC}{SinB}=\frac{AB}{sin C}$

Substitute the values then we get

$\frac{b}{sin 76^{\circ}}=\frac{3}{sin 38^{\circ}}$

$b=\frac{3}{sin 38^{\circ}}\times sin 76^{\circ}$

$b=4.7$

Hence, the value of b= 4.7 units

5 0

4 years ago

Read 2 more answers