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3 years ago

14

Plz help me understand number 20

2 answers:

ololo11 [35]3 years ago

7 0

Answer:

-2.45

Step-by-step explanation:

yes it is the correct answer

Alecsey [184]3 years ago

3 0

-2.45 will be the write answer

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9 times a number b is 36

Strike441 [17]

Answer:4

Step-by-step explanation:

9b=36

9B/9=36/9

B=4

7 0

4 years ago

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The sum of the first three terms of A.P is 18 if the first term is 4 find their product

Nataly_w [17]

Answer:

192

Step-by-step explanation:

The sum of the first 3 terms of the A. P is

a + a + d + a + 2d = 18, that is

3a + 3d = 18 ← substitute a = 4

12 + 3d = 18 ( subtract 12 from both sides )

3d = 6 ( divide both sides by 3 )

d = 2

Thus the first 3 terms are

4, 6, 8 and their product = 4 × 6 × 8 = 192

6 0

3 years ago

use four rectangles to estimate the area between the graph of the function and the x-axis on the interval using the right endpoi

WINSTONCH [101]

we have the function

f(x)=6/(7x)

the interval [2,6]

Divide into fur rectangles

the width of each rectangle is equal to

(6-2)/4=1

the intervals are

(2,3) (3,4) (4,5) and (5,6)

using the right endpoints

the approximate area is equal to

A1=f(3)*(1)=[6/(7*3)]*(1)=6/21

A2=f(4)*(1)=[6/(7*4)]*(1)=6/28

A3=f(5)*(1)=[6/(7*5)]*(1)=6/35

A4=f(6)*(1)=[6/(7*6)]*(1)=6/42

therefore

the approximate area is

A=(6/21)+((6/28)+(6/35)+(6/42)

simplify

A=(6/7)*[(1/3)+(1/4)+(1/5)+(1/6)]

A=(6/7)*[(20+15+12+10)/60]

A=(6/7)*[57/60]

<h2>A=57/70 unit2 -----> exact answer</h2>

4 0

1 year ago

2xy-xz=4 solve for x<br><br><br> Pls help due today

LenKa [72]

Hey there!

$Answer:\boxed{x=\frac{4}{2y-z}}$

$Explanation:$

$2xy-xz=4$ Solve for X

x(2y - z) Factor out the variable x

x(2y - z)/2y - z = 4/2y - z Divide both sides by 2y - z

x = 4\2y - z

Hope this helps!

4 0

4 years ago

The set of all output values y in a function is called the ___ of the function

Debora [2.8K]

Range of a function.

5 0

4 years ago

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