Charlie runs ata speed of 3 yards per second. about how many miles per hour does charlie run?

Answers

Answer 1

Answer:
(3 yard/sec) x (3,600 sec/hr) x (1 mile / 1,760 yard) =

(3 x 3,600 / 1,760) (mile/hour) = 6.136... mph (rounded)

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A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km?A. 0.3
B(wrong. already eliminated that off) 0.8
C. 2.5
D. 3.2

Answers

Answer:

its 0.3

Ye i solved this a different way

so in order to see how many 20km of gas is needed, we first need to see how many miles thats worth.

1 mile = 1.6km

1.6 goes into 20, 12.5 times

12. 5 is our magic number. Now we take 12.5 and divide it by 40 and not the other way around.

now we're left with 0.3

voila it"s done, hope this simplifies this s bit, have a nice day

Step-by-step explanation:

so converting miles to km, you get 1mile=1.6km. 20km=12.5miles

if 1 gallon gets you 40 miles, then x gallons will get you 12.5 miles., Solve for x, x=12.5/40=0.3125.

Answer should be A

In forming a contract, "consider" is

Answers

It depends on what contract you are signing if you are having doubts then yes but not then no!

Calculate the discriminant.

x2 + 2x – 2 = 0

Answers

$x^2 + 2x - 2 = 0 \n \n a=1 , \ b=2 , \ c= -2\n \n \Delta = b^(2)-4ac = 2^(2)-4*1* (-2)= 4+8=12 \n \n√(\Delta )=\1{12}= √(4*3)=2√(3)\n \nx_(1)=(-b-√(\Delta ))/(2a) =(-2-2√(3))/(2)=(2(-1-√(3)))/(2) =-1-√(3) \n \nx_(2)=(-b+√(\Delta ))/(2a) =(-2+2√(3))/(2)=(2(-1+√(3)))/(2) =-1+√(3)$

I need the answer and the work!
you have to find n.

Answers

Tell you what I'll do: I'll show you the work, for two of them.
Then, knowing how to do it, you'll find the answers.
Deal ?

#1). n + (-13) = -12

Remove the parentheses
on the left side: n - 13 = -12

Add 13 to each side: n = 1

================================

#3). -15 + n = 3

Add 15 to each side: n = 18

OK. Look those over, understand how they're done, then TAKE IT !

For a circle of radius 4 with center (-4, 3). in general form

Answers

I'm going to assume that you're asking for the equation of that circle.
It's

(x + 4)² + (y - 3)² = 16

Reduced Equation:

$(x-x_o)^2+(y-y_o)=r^2\n \n (x+4)^2+(y-3)^2=16\n \n x^2+8x+16+y^2-6y+9-16=0\n \n \boxed{x^2+y^2+8x-6y+9=0}$

Jen wants to tile the floor of her kitchen . The floor is recrangular and measures 12 feet by 8 feet. If it costs $2.50 per square foot for the materials, what is the total cost of the materials, what is the total cost of the materials for tiling the kitchen floor?

Answers

Given:
rectangular floor
length = 12 feet
width = 8 feet

Area = 12 ft * 8 ft = 96 ft²

Cost of $2.50 per square foot

96 ft² * $2.50 = $240

The total cost of the materials for tiling the kitchen floor is $240.

we know that

The area of the floor of the kitchen is equal to the area of a rectangle

Step 1

Find the area of the kitchen

we have