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Rudiy27
3 years ago
15

Find the distance between (8,8) and (3,1)

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

About 8.6

Step-by-step explanation:

d=(x2-x1)^2+(y2-y1)^2

8=x1 8=y1   3=x2 1=y2

(3-8)^2+(1-8)^2

(-5)^2+(-7)^2

25+49

74

take the square root and you get about 8.6

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What is the value of x in the diagram?
cestrela7 [59]

Answer:

x = 5

Step-by-step explanation:

x² + (2x+2)² = (2x+3)²

x² + 4x² + 8x + 4 = 4x² + 12x + 9

x² - 4x - 5 = 0

(x - 5)(x + 1) = 0

x = -1  This can be discounted as the answer because you cannot have a negative length

answer: x = 5

5 0
3 years ago
Varies directly with the number of
yulyashka [42]

Step-by-step explanation:

Let p and h represent pay and hours worked respectively,

p = kh

k = p/h = 148.5/18 = 8.25

p= 8.25h

90.75 = 8.25h

h = 11 hours.

Hope it helps! :)

3 0
1 year ago
a toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its heigh
sdas [7]

Answer:

t = 2.11 seconds

Step-by-step explanation:

A toy rocket is launched from the top of a 48 foot hill. The rockets initial upward velocity is 32 feet per second and its height h at any given second t is modeled by the equation:

h=-16t^2+32t+48

Let us assume that we need to find the time by it to reach the ground. It means h = 0

-16t^2+32t+48=0

The above is a quadratic equation. The value of t is given by :

t=\dfrac{-b\pm \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-b+ \sqrt{b^2-2ac} }{2a},\dfrac{-b- \sqrt{b^2-2ac} }{2a}\\\\t=\dfrac{-32+ \sqrt{(32)^2-2\times (-16)(8)} }{2\times (-16)},\dfrac{-32-\sqrt{(32)^{2}-2\times(-16)(8)}}{2\times(-16)}\\\\t=-0.11\ s, 2.11\ s

So, it will take 2.11 seconds to reach the ground.

6 0
3 years ago
A 6-pack of undershirts cost 13.98.This is 3.96 less then the cost of buying 6 individual shirts.If each undershirt costs the sa
mihalych1998 [28]
1.67 is your answer 13.98 - 3.96=10.02 10.02 divided by 6 = 1.67
Hope I helped
8 0
2 years ago
Imagine your playing a game, you are currently level 5 and it takes 55 EXP to level up to level 6, each battle you fight you gai
sattari [20]

Step-by-step explanation:

55 / 3 = 18.333.

Since it is a decimal, we round up to the nearest whole number.

It will take at least 19 battles to level up.

7 0
3 years ago
Read 2 more answers
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