93. The ratio of volumes of two cones are 1:4 and
ratio of their diameters are 4:5, then ratio of
their heights will be
(A) 49:25
(B) 25:16
(C) 64:52
(D) 25:64​

Answer:

2

Step-by-step explanation:

Answer:

a. 12 yd

Step-by-step explanation:

[tex] \sqrt{ {15}^{2} - {9}^{2} } = 12[/tex]

Answer:

1.10119047619 use first 3 digits for answer

Answer:

1  17/168

Step-by-step explanation:

3 1/3 is the same as 3 4/12

-2 1/4 is the same as -2 3/12

3 4/12 + (-2 3/12) = 1 1/12

1 1/12 + 1/56 = 13/12 + 1/56

we can use 168 as a common denominator to get:

13/12 = 182/168

1/56 = 3/168

add the above together to get 185/168 which is 1  17/168

Answer:

A) -2/5 gal/min

B) 25 minutes

C) 7.5 minutes

Step-by-step explanation:

A) We are told that the tank contains 12 gallons of water when Jada first sees it.

5 minutes later, it loses two gallons to become 10 gallons.

Thus, rate at which the amount of water in the tank changing = -2/5 gal/min

B) After 5 minutes it contains 10 gallons. Since it drains at 2/5 gal/min, let us say the time to finish draining all is x, thus;

2/5 • x = 10

x = 10 × 5/2

x = 25 minutes

C) When full, it can hold up to 15 gallons. This is 3 more than the 12 she saw when she arrived.

Thus;

2/5 • y = 3

y = 5 × 3/2

y = 7.5 minutes

what are the statements?

Answer:

the top x = surface water

the very bottom left x = nonporous rock

the one above it= ground water

the one to the right of that is =porOUS rock

water table last one on the right above them all (bottom right)

Step-by-step explanation:

Answer:

top one is surface water, lowest arrow is water table, second lowest arrow(the dark ground) is nonporous rock, third lowest arrow is groundwater, and the last one is porous rock

Step-by-step explanation:

i may be wrong but i think thats it

Answer: a - complementary (im not completly sure tho)

Step-by-step explanation: a complementary is either of two angles whose sum is 90°

Answer:

Mid point:

[tex] = ( \frac{3 + - 5}{2} , \: \frac{1 + 8}{2} ) \\ = ( - 1, \: 4.5)[/tex]

distance:

[tex] = \sqrt{ {( - 5 - 3)}^{2} + {(1 - 8)}^{2} } \\ = \sqrt{64 + 49} \\ = \sqrt{113} \\ = 10.6 \: units[/tex]

slope:

[tex] = \frac{1 - 8}{ - 5 - 3} \\ = \frac{ - 7}{ - 8} \\ = \frac{7}{8} [/tex]

Answer:

b² - 4ac > 0

Step-by-step explanation:

Conditions for the discriminant

• If b² - 4ac > 0 then 2 real and distinct roots

• If b² - 4ac = 0 then 2 real and equal roots

• If b² - 4ac < 0 then no real roots

Here the roots are x = 0 and x = 4

That is 2 real and distinct roots , then

b² - 4ac > 0

Answer:

7.193 ft

Step-by-step explanation:

    |\

    |   \

    |      \

    |         \

h  |            \      10 ft

    |               \

    |                  \

    |            46°   \

    ---------------------

For the 46° angle, h is the opposite leg. The hypotenuse is 10 ft. The sine is the trig ratio that relates the opposite leg to the hypotenuse.

sin A = opp/hyp

sin 46° = h/10

h = 10 sin 46°

h = 7.193

Answer: 7.193 ft

Answer:

8:27 p.m.

Step-by-step explanation:

5:43 + 2:44

~~~

43+44= 87

87-60= 27

~~~

5+2= 7

7+1 (from the subtracted 60)= 8

~~~

8:27 p.m.

Hope this helps! Have a nice day :)

Answer:

72 square inches

Step-by-step explanation:

The surface area is the sum of all the sides' areas.

**I am assuming the pyramid is a square pyramid based on observation.

There is one 4 by 4 square: area = [tex]4^2=16[/tex]

There are 4 congruent triangles with height 7 and base 4: area of a single triangle = 1/2 * b * h; [tex]\frac{7*4}{2}=14[/tex]

14 * 4 = 56

Add 56 and 16 = 72

Answer:

72 square inches

Step-by-step explanation:

The surface area is the sum of all the sides' areas.

**I am assuming the pyramid is a square pyramid based on observation.

There is one 4 by 4 square: area =

There are 4 congruent triangles with height 7 and base 4: area of a single triangle = 1/2 * b * h;

14 * 4 = 56

Add 56 and 16 = 72

Step-by-step explanation:

Answer

a. The volume is multiplied by 4

b. The volume is doubled

Explanation

a. The volume of a cone with radius r and height h is [tex]\pi r^2 h/3[/tex]. If the radius is doubled, the new volume will be [tex]\pi (2r)^2h/3[/tex], which is equal to [tex]4\pi r^2h/3[/tex]. This means that the volume is multiplied by 4.

b. The volume of a cone with radius r and height h is [tex]\pi r^2 h/3[/tex]. If the height is doubled, the new volume will be [tex]\pi r^2(2h)/3[/tex], which is equal to [tex]2\pi r^2 h/3[/tex]. This means that the volume is multiplied by 2.

Answer:

The answer is given below.

Step-by-step explanation:

Let us assume the cost of the video game be x

There should be two chances

The first one is

that the cost of the video game should be equivalent to the amount given

SO

The return is $0

The second one is

When the cost of the video game is less than the amount you pay

SO, the return change is

= $50 - x

Answer:

GH 5000

Step-by-step explanation:

Given data

Cost price=  GH 2000.00

Percent profit= 60%

Sales price =???

The sale price can be found  as

% profit= sale-cost/sale*100

60= sale-2000/sale*100

60= 100*sale-200000//sale

60*sale= 100sale-200000

1000sale-60sale= 200000

40sale= 200000

sale= 200000/40

sale= 5000

Hence the sales price = GH 5000

Answer:

Area cover by solar panel to face = 9,600 feet²

Step-by-step explanation:

Given:

Length of Solar panels = 240 feet

Width of Solar panels = 40 feet

Find:

Area cover by solar panel to face

Computation:

Area of rectangle = Length × Width

Area cover by solar panel to face = Length of Solar panels × Width of Solar panels

Area cover by solar panel to face = 240 × 40

Area cover by solar panel to face = 9,600 feet²

Answer:

Area cover by solar panel to face = 9,600 feet², The panels are about 340 feet Long, and 40 feet Wide. The area of this rectangle is a Length x Width.

Step-by-step explanation:

I don't really know if this helps, but If you use it change some words since this is what I wrote, or because we might have the same school districts, I don't want any trouble.. But if you need help understanding a bit more, ask me! ^.^

If this does help: Your welcome, bubs <3

5t-2

i think this is the answer, hope this helped! :T

Answer:

The hypotenuse is (root) 84.25

Step-by-step explanation:

4.5^2 + 6^2 = x^2 (hypotenuse)

20.25 + 36 = 84.25

x^2 = 84.25

x = (root) 84.25 or 9.1787...

Answer:

Option C: (4.47,-0.46)

Step-by-step explanation:

To convert Cartesian coordinates [tex](x,y)[/tex] into polar coordinates [tex](r,\theta)[/tex], use the following formulas:

[tex]r=\sqrt{x^{2}+y^{2} }[/tex]

[tex]\theta=tan^{-1}(\frac{y}{x})[/tex]

Therefore:

[tex]r=\sqrt{x^{2} +y^{2}}=\sqrt{4^2+(-2)^2}=\sqrt{16+4}=\sqrt{20}=4.47[/tex]

[tex]\theta=tan^{-1}(\frac{y}{x})=tan^{-1}(\frac{-2}{4})=tan^{-1}(-\frac{1}{2})=-0.46[/tex]

Because (4,-2) is located in Quadrant II, the angle must also be located in Quadrant II. Therefore, the correct polar coordinate would be (4.47,-0.46)

The polar coordinate would be (4.47, -0.46).

Although Cartesian coordinates can be utilized in three dimensions (x, y, and z), polar coordinates only identify two dimensions (r and θ). If a third axis, z (height), exists added to polar coordinates, the coordinate system exists directed to as cylindrical coordinates (r, θ, z).

Given:

Let the point be (4,-2).

To convert, cartesian coordinates (x, y) to polar coordinates (r, [tex]$\theta[/tex]),

[tex]$r &=\sqrt{x^{2}+y^{2}} \\[/tex]

[tex]$\theta &=\tan ^{-1} \frac{y}{x} \\$[/tex]

[tex]$ r &=\sqrt{4^{2}+(-2)^{2}} \\[/tex]

[tex]$&=\sqrt{16+4} $[/tex]

[tex]$&=\sqrt{20}[/tex]

= 4.47

[tex]$\theta &=\tan ^{-1} \frac{-2}{4} \\[/tex]

[tex]$&=\tan ^{-1} \frac{-1}{2}=-0.46 \\[/tex]

The polar coordinate would be (4.47,-0.46)

Therefore, the correct answer is option c. r = 4.47, [tex]$\theta[/tex] = -0.46

To learn more about cartesian coordinates and polar coordinates

https://brainly.com/question/18042894

#SPJ2

is that a math question? can you type out the full question please?

Answer:

[tex] \frac{10}{5} = \frac{x}{5} \\ 5x = 50 \\ x = 10[/tex]

Answer:

x=5.8m after converting into 1 decimal place

Step-by-step explanation:

Answer:

Well 40.21/12.5=3.217 so it is about $3.22 per sqr ft.

Step-by-step explanation:

Answer:

89 boys to 71 girls, 89:71, or 89/71

Step-by-step explanation:

x+x+36=320

2x+36=320

2x=284

x=142

This means that there are 142 girls.

142+36=178 boys

Simplify the fraction by dividing both numbers by two.

Answer:

1/26

Step-by-step explanation:

This is a case of joint probability.  We find the two probabilities separately and then multiply the results together:

P(odd number on cube) = 3/6 = 1/2; P(7 from a deck)) = 13/52 = 1/13

Then the desired joint probability is (1/2)(1/13) = 1/26

Note that the two events here are entirely separate and independent.

Answer:i think it would be 75 cents

Step-by-step explanation:

125 divided by 5 and you get 25, then you fo 25 times 3

Answer:

75 cents

Step-by-step explanation:

x= 5 kilometers

y= 3 cents

y/x= rate of change

3/5= 0.6

125 kilometers is the x variable so y= 0.6(125)

y= 75

Step-by-step explanation:

-5⅔×(-2⅚)

-17/3×(-17/6)

289/18

Answer:

,4 feet is the height of the tree

Answer:

Step-by-step explanation:

Answer:

r = 6 in

Step-by-step explanation:

[tex]V = \pi r^{2} \frac{h}{3}[/tex] = [tex]216\pi[/tex]

r²h/3 = 216

r² (18/3) = 6 r² = 216

r² = 216/6 = 36

r = 6