3 years ago

Derek bought two new tires for a car

Mathematics

1 answer:

alexandr402 [8]3 years ago

8 0

Answer: $213.96

Step-by-step explanation:

You literally just plus all the numbers together:

(2×69.99)+(2×39.99)

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Ariel left her home at 9 a.m., driving at 45 mph. At 11 a.m. her brother left the home and started after her at 60 mph. At what

Vlada [557]

Answer:

5:00 pm

Step-by-step explanation:

Let

x -----> the umber of hours

y ----> the total distance in miles

we know that

The distance is equal to the speed multiplied by the time

Find out the distance traveled by Ariel at 11:00 am

11:00 am-09:00 am=2 hours

45(2)=90 miles

Ariel's linear equation is

$y=45x+90$ ----> equation A

Ariel's brother linear equation is

$y=60x$ ----> equation B

Equate equation A and equation B

$60x=45x+90$

Solve for x

$60x-45x=90$

$15x=90$

$x=6\ hours$

Adds 11:00 am + 6 hours=17:00 =5:00 pm

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3 years ago

You can model the entrance to a mine shaft using the equation

Furkat [3]

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

-1/2*2 = -1

y=-1(x+4)(x-4)

solving for x

x - -4 and x =4

-4 to 4 = 8 feet

width = 8 feet

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3 years ago

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write in graphing form please! A parabola that opens down with no stretch factor that has a vertex of (-6,5)

wolverine [178]

If it has no stretch factor, then there will be no coefficient. Meaning this is a lot easier. So, we equation is

(x+6)^2 + 5

Hope this helps!

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3 years ago

How to find the volume of a cone with its base in algebra

marin [14]

Answer:

V=pi r² h/3

Step-by-step explanation:

V=volume

R=radius

H=height

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What is the value of x in the equation in ( x + 6)- in (2x-1) =1

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Answer:

x= -5

Step-by-step explanation:

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