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telo118 [61]
2 years ago
9

During a snowstorm, the temperature drops from 0°F to -12°F in 3 hours. On

Mathematics
2 answers:
Anastasy [175]2 years ago
8 0

Answer:D.

-4°F

Step-by-step explanation:

EastWind [94]2 years ago
7 0

Answer:

D

Step-by-step explanation:

d

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David was trying to sleep one night but there was too much noise around him? His clock ticked every 5 seconds , a tap was drippi
Monica [59]

Answer:

A) 420 seconds = 7 minutes

B) 8 times

Step-by-step explanation:

A) After how many second would all three things happen together again?

Solution:

His clock ticked every 5 seconds , a tap was dripping every 7 seconds and     his pet dog snored every 12 seconds. It all happens simultaneously = 5*7*12=420 seconds

B) How many times would all three things happen together again between    midnight and one o'clock

Since all these events happen together after every 420 sec = 7 mins and there are 60 mins between midnight and 1 o'çlock , thus 60/7 = 8 times ....

7 0
3 years ago
Find all solutions for a triangle with B = 36º. b = 19, and c = 30. Round to the nearest tenth.
mojhsa [17]
1 because 1 is my favorite number and it’s good for guessing
7 0
3 years ago
Help PLEASE. I got number 3 but I can't figure out number 4.
Sergeeva-Olga [200]

Answer:

Verify the identity using trig rules.

tan  (  x  −  π /2  )  =  − cot  (  x  )  is an identity

Step-by-step explanation:

i think this is it, hope it helps

6 0
3 years ago
Plz help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
snow_lady [41]

Answer:

option 9 answer

Step-by-step explanation:

keep j Merrick

8 0
3 years ago
Please show your work and I will make you brainliest ​
klio [65]

Answer:

17. y=1/2x+5

18. y=-2x+15

19. y=2x-7

Step-by-step explanation:

Number 17.

(4,7); parallel to y=1/2x-1

You know that lines that are parallel to each other have the same slope, so the slope is 1/2x.

1. Use the point-slope formula to solve for the slope-intercept equation.

y-y1=m(x-x1)

m= 1/2

x= 4

y= 7

y-7= 1/2(x-4)

y-7= 1/2x-2

y=1/2x+5

Number 18.

(4,7); perpendicular to y=1/2x-1

You know that lines that are perpendicular to each other have the opposite reciprocal slope, so the slope is -2.

1. Use the point-slope formula to solve for the slope-intercept equation.

y-y1=m(x-x1)

m= -2

x= 4

y= 7

y-7=-2(x-4)

y-7=-2x+8

y=-2x+15

Number 19.

f(3)=-1

f(4)=1

To write a linear equation, first find the slope with the slope formula.

x1= 3

y1= -1

x2= 4

y2=1

(y2-y1)/(x2-x1)

(1-(-1))/(4-3)

2/1

m=2

Use the point-slope formula and solve for the slope-intercept equation.

y-y1=m(x-x1)

y-1=2(x-4)

y-1=2x-8

y=2x-7

6 0
2 years ago
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