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3 years ago

PLESE HELP! 50 POINTS! GIVING BRAINLIEST.

Mathematics

1 answer:

shusha [124]3 years ago

7 0

bro which class question is this then I can help you with ur question

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Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. INT from 0

Montano1993 [528]

Answer:

$M_4=0.4722$

Step-by-step explanation:

we are given integral as

$\int _0^{\frac{\pi }{2}}\left(2cos\left(5x\right)\right)dx\:$

n=4

Firstly, we will find delta x

$\Delta x=\frac{\frac{\pi}{2}-0 }{4}$

$\Delta x=\frac{\pi}{8}$

now, we can find mid-point sum

$M_4=(0.3925) \times( f((0+0.3925)/2)) + f((0.3925+0.785)/2)) + f((0.785+1.1775)/2)) + f((1.1775+1.57)/2)) )$

$M_4=(0.3925) * ( 1.1119679802993 + -1.960985790784 + 0.3852980309352 + 1.6668002599015 )$

$M_4=0.4722$

8 0

4 years ago

Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select ALL of the true statements.

Anna007 [38]

Answer:

Segment EF is twice as long as segment AB.

The length of segment EH is 16 units.

Step-by-step explanation:

its

8 0

4 years ago

Please help w/ geometry!

lara [203]

Answer:

<XYZ = 34

Step-by-step explanation:

Remark

Bisected angles means that the original angle (<XYZ in this case) has been cut exactly in half. The two parts that were created from <XYZ are equal so you need only solve for x, solve one of the halves and then double it.

Equation

3x - 7 = 2x + 1

Solution

3x - 7 = 2x + 1 Add 7 to both sides

3x - 7+7 = 2x +1+7 Combine

3x = 2x + 8 Subtract 2x

3x-2x = 2x-2x + 8 Collect like terms on both sides

x = 8

Solution 2

Find one of the bisected parts. You can choose either of the two parts so use 2x + 1

2x + 1

2*8+1

16 + 1

WYZ = 17 degrees

Solution 3

Double <WYZ to get <XYZ

<XYZ = 2 * 17

<XYZ = 34 degrees

5 0

3 years ago

What is the total cost, including a 3% sales tax, the cost price of a cost priced at $120?

Aliun [14]

The total cost including taxes is $156

3 0

3 years ago

What is the sum of x^2 - 3x + 7 and 3x^2 + 5x - 9

Dmitrij [34]

Hey there!

The answer to your question is $4x^2+2x-2$

Given:

$x^2-3x+7$ $and$ $3x^2 +5x-9$

First, we can start by adding like terms. The following are like terms:

$x^2$ $and$ $3x^2$

$-3x$ $and$ $5x$

$7$ $and$ $-9$

Now, we can add these pairs together, giving us:

$4x^2$

$2x$

$-2$

Now, add all this together, and we get our answer as:

$4x^2 + 2x - 2$

Have a terrificly amazing day!

7 0

3 years ago