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Tema [17]
2 years ago
7

AHHHHHHhh asap plz answer!!

Mathematics
2 answers:
LUCKY_DIMON [66]2 years ago
7 0

Answer: 4 : 15

Step-by-step explanation:

The unit ratio of 2 : 8 is 1 : 4

The unit ratio of 5 : 20 is 1 : 4

The unit ratio of 3 : 12 is 1 : 4

However, the unit ratio of 4 : 15 is 4 : 15

Hope this helped!

DochEvi [55]2 years ago
5 0

number one because if you do the math it's the o nly one that's different

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Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour after the time that she first checked
Snezhnost [94]

Answer:

21 ÷ 1.4

Step-by-step explanation:

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour.

The temperature had fallen 21 degrees, so it passed

21:1.4=210:14=30:2=15

hours after she had first checked the thermometer.

She had first checked the temperature at 3 p.m.

6 0
3 years ago
Read 2 more answers
Write the equation in standard form for a circle that has a diameter with endpoints (8,0) and (-8,0)
riadik2000 [5.3K]

Answer:

x²+y² = 64

Step-by-step explanation:

The standard form of writing the equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the centre of the circle

r is the radius of the circle

Given the diameter of the circle with endpoints (8,0) and (-8, 0)

d = √(x2-x1)²+(y2-y1)²

d = √(-8-8)²+(0-0)²

d = √(-16)²

d = √256

d = 16

radius r = 16/2

r = 8

The centre of the circle will be the midpoint of the coordinates

M = (8-8/2, 0+0/2)

M = (0/2, 0/2)

M = (0,0)

Hence the centre is at (0,0)

Get the required equation

Recall that (x-a)²+(y-b)² = r²

Substitute the centre and the radius

(x-0)²+(y-0)² = 8²

x²+y² = 64

This gives the required equation

6 0
3 years ago
For the curve y = ln(x 2 − 3), find the equation of the tangent line at (2, 0).
denis23 [38]
Y' = 2x/(x^2 -3)  y'(2) = 4
Using the point slope equation:
y-0 = 4(x-2)
y = 4x - 8
3 0
3 years ago
What is the volume of a cylinder with a height of 3 feet and a radius of 4 feet use 3.14 for pi
Vlad1618 [11]

Answer:

\large\boxed{V\approx150.72\ ft^3}

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

We have the height H = 3ft and the radius r = 4ft. Substitute:

V=\pi(4^2)(3)=\pi(16)(3)=48\pi\ ft^3

\pi\approx3.14

V\approx48(3.14)=150.72\ ft^3

3 0
3 years ago
Read 2 more answers
Fraction with a denominator of 10 can be written as an equivalent fraction with
AVprozaik [17]

Answer:

9/10 is 90%

Step-by-step explanation:

You just make it a percentage

5 0
2 years ago
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