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3 years ago

Which statements about the histogram are true? Check all that apply.

Mathematics

2 answers:

Rainbow [258]3 years ago

7 0

commenting for pointssss

yarga [219]3 years ago

6 0

Took test seems to be okay agreed with guy above thanks

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Find the area of each square

slava [35]

Answer:

I don't know but I am still answering

Step-by-step explanation:

8 0

3 years ago

the total surface area of a solid cylinder is 21cm if the curved surface area of the solid cylinder is two - third of its total

arsen [322]

Answer:

The radius of cylinder is 1.05 cm and

The height of cylinder is 2.11 cm

Step-by-step explanation:

Given as :

The total surface area of cylinder = 21 cm

The curved surface area of cylinder = $\frac{2}{3}$ of the total surface area

I.e The curved surface area of cylinder = $\frac{2}{3}$ × 21 = 14 cm

∵ The total surface area of cylinder = 2 $\pi$ r h + 2 $\pi$ r²

Where r is the radius and h is the height of cylinder

Or, 2 $\pi$ r h + 2 $\pi$ r² = 21 cm

Or, $(2\times \Pi \times r\times h) + (2\times \Pi\times r^{2} )$ = 21 cm ....a

Again ∵ The curved surface area of cylinder = 2 $\pi$ r h

Where r is the radius and h is the height of cylinder

Or, 2 $\pi$ r h = 14 cm . ...b

so . put the value of a into b

I.e 14 cm + $(2\times \Pi\times r^{2} )$ = 21 cm

Or, $(2\times \Pi\times r^{2} )$ = 21 cm - 14 cm

Or, $(2\times \Pi\times r^{2} )$ = 7

so , r² = $\frac{7}{2\pi }$

∴ r² = $\frac{49}{44}$

I.e r = $\sqrt{\frac{49}{44} }$

So, radius = $\frac{7}{\sqrt{44} }$ cm

or, r = 1.05 cm

Put the value of r in eq b

2 $\pi$ r h = 14 cm

Or, 2 $\pi$ × $\frac{7}{\sqrt{44} }$ × h = 14 cm

So, h = $\frac{\sqrt{44} }{\pi }$

Or, h = 2.11 cm

Hence The radius of cylinder is 1.05 cm and The height of cylinder is 2.11 cm Answer

8 0

4 years ago

Write sin 75° in terms of the cosine

timama [110]

Answer:

Use z = a +bi = IzI (cos (Ф) + i sin (Ф)) to find the trigonometric form. √2+∛ / 2 (cos (0) + i sin (0))

Step-by-step explanation:

3 0

3 years ago

The sum of three consecutive integers is 189 . What are the integers?

velikii [3]

Answer:

So x+(x+2)+(x+4)=189. so the three numbers are 61, 63, 65.

8 0

3 years ago

Last one <br><br> Please show your work

statuscvo [17]

Mean = (Sum of values)/(Number of values)

$Mean\\ \\ =\frac { 55+62+61+54+68+72+59+61+70 }{ 9 } \\ \\ =\frac { 562 }{ 9 } \\ \\ =62.4\quad mph\quad (1\quad d.p)\\ \\$

Range = Highest Value - Lowest Value

$Range\\ \\ =72-54\\ \\ =18\\ \\$

8 0

3 years ago