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Ganezh [65]
3 years ago
11

Solve each problem and decide which is the best of the choices given.

Mathematics
2 answers:
jarptica [38.1K]3 years ago
5 0

Step-by-step explanation:

I think you are missing the square root signs or so in the answer options.

the distance between 2 points is calculated by using Pythagoras for right-angled triangles.

c² = a² + b²

c is the Hypotenuse of the triangle and the distance between the points, which are the end points of the Hypotenuse.

a and b are the legs and enclose the 90 degree angle. they are the differences of the x and y coordinates between the 2 points.

so,

distance² = (1 - -7)² + (6 - 3)² = 8² + 3² = 64+9 = 73

=>

distance = sqrt(73)

Nikitich [7]3 years ago
3 0
55 is the answer !!!!
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~I ~ need ~ help ~ once ~ again~
ruslelena [56]
A. 12pi meters.

Circumference = pi x diameter (pi x 12 = 12pi)
Diameter = 2 x radius (2 x 6 = 12)

8 0
3 years ago
Please help i suck at math
Andrews [41]
Slope is rise/run
so, you go up 4 times and run across 3 times, this is a positive slope, so the slope is
slope: 4/3
the y-intercept is the line that passes the y-axis, (0, -5),
y-intercept: -5

put it together
4/3x-5
6 0
3 years ago
The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000
valina [46]

Answer: 61,750 miles

Step-by-step explanation:

Given : The p-value of the tires to outlast the warranty = 0.96

The probability that corresponds to 0.96 from a Normal distribution table is 1.75.

Mean : \mu=60,000\text{ miles}

Standard deviation : \sigma=1000\text{ miles}

The formula for z-score is given by  : -

z=\dfrac{x-\mu}{\sigma}\\\\\Rightarrow\ 1.75=\dfrac{x-60000}{1000}\\\\\Rightarrow\ x-60000=1750\\\\\Rightarrow\ x=61750

Hence, the tread life of tire should be 61,750 miles if they want 96% of the tires to outlast the warranty.

3 0
3 years ago
The perimeter of a rectangular field is 380 yd. the length is 70 yd longer than the width. find the dimensions.
GaryK [48]
P=2L+2W
380=2*70+2W
380=140+2W
2W=240
W=120

The dimensions are 70 yd and 120 yd

Hope this helps!
3 0
3 years ago
Find the surface area of this prism <br> 3cm <br> 7cm<br> 5cm
k0ka [10]

Answer:

105cm

Step-by-step explanation:

please click crown below my answer.

8 0
2 years ago
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