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3 years ago

How do you do this help please

Mathematics

2 answers:

lys-0071 [83]3 years ago

7 0

They are both straight lines

kari74 [83]3 years ago

6 0

Maybe because... some trapezoids and parallelograms have four sides

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1:X = X:25. What number can replace X?

igor_vitrenko [27]

5 is your answer

1: 5 = 5: 25

Note that the colon can act like a fraction.

Simplify 5/25.

(5/25)/(5/5) = 1/5 = 1/5

5 is your answer

hope this helps

7 0

3 years ago

Use the disk method or the shell method to find the volumes of the solids generated by revolving the region bounded by the graph

diamong [38]

Answer:

a) 8π

b) 8/3 π

c) 32/5 π

d) 176/15 π

Step-by-step explanation:

Given lines : y = √x, y = 2, x = 0.

a) The x-axis

using the shell method

y = √x = , x = y^2

h = y^2 , p = y

vol = ( 2π ) $\int\limits^2_0 {ph} \, dy$

= $( 2\pi ) \int\limits^2_0 {y.y^2} \, dy$

∴ Vol = 8π

b) The line y = 2 ( using the shell method )

p = 2 - y

h = y^2

vol = ( 2π ) $\int\limits^2_0 {ph} \, dy$

= $( 2\pi ) \int\limits^2_0 {(2-y).y^2} \, dy$

= ( 2π ) * [ 2/3 * y^3 - y^4 / 4 ] ²₀

∴ Vol = 8/3 π

c) The y-axis ( using shell method )

h = 2-y = h = 2 - √x

p = x

vol = $(2\pi ) \int\limits^4_0 {ph} \, dx$

= $(2\pi ) \int\limits^4_0 {x(2-\sqrt{x} ) } \, dx$

= ( 2π ) [x^2 - 2/5*x^5/2 ]⁴₀

vol = ( 2π ) ( 16/5 ) = 32/5 π

d) The line x = -1 (using shell method )

p = 1 + x

h = 2√x

vol = $(2\pi ) \int\limits^4_0 {ph} \, dx$

Hence vol = 176/15 π

attached below is the graphical representation of P and h

3 0

3 years ago

Use the spinner to determine the probability of each outcome type your answers as fractions in simplest form. Fractions should b

DaniilM [7]

Answer:

Probability of spinning a 1 is 25 percent.

Probability of spinning an even number is 50 percent

Probability of spinning a 5 is 0 percent

probability of spinning an odd number is 50 percent

Step-by-step explanation:

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3 years ago

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Pls help this homework is due tomorrow and I’m so confused thank you for taking your Time x

olchik [2.2K]

Answer:

a) x= 75

b) 105 is the same angle as angle B, I subtracted 180 by 105

180-105= 75

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3 years ago

The table shows the running speeds of 10 randomly selected ostriches. Speed (mlles per hour) 35 40 37 33 36 34 32 36 41 36 Based

lukranit [14]

Answer:

D;the tropical ostrich runs at a speed of about 36 miles per hour

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