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3 years ago

Solve this problem using estimation.

Mathematics

1 answer:

crimeas [40]3 years ago

3 0

$1.65 in the answer.

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40 Butterflies at Swallowtail :D

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3 years ago

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Line segments can be broken down into what objects?

Strike441 [17]

Points? couldn't really find anything else if it was a multiple choice question could u share the answers and maybe i can help then

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3 years ago

23∙(−800)=<br><br> I will give you 30 points!

Romashka [77]

Answer:

-18,400

Step-by-step explanation:

23 * (-800) = 18,400.

4 0

3 years ago

A boy and girl ran towards each other. The boy ran at 1 mph and the girl ran at

sergiy2304 [10]

Step-by-step Answer:

Very tricky question where we have to pay attention to units.

Total distance = D = 50 m

Total speed = S = 1+2 = 3 miles per hour

When they run towards each other for a given distance, the solution is given by

time = total distance / total speed

= 50 metres / (2+1) miles per hour.

= 50 metres / 3 miles per hour

We know that 1 inch = 2.54 cm exactly, so

D3= distance of three miles

= 3 miles

= 3 miles * 1760 yards /mile

= 3*1760 yards * 36 inches per yard

= 3*1760*36 inches * 2.54 cm / inch

= 3*1760*36*2.54 cm

= 3*1760*36*2.54 cm * (1/100) m/cm

= 3*1760*36*2.54/100 metres

The total speed is therefore

S = D/3600 seconds

= 3*1760*36*2.54/100 / 3600

= 1.34112 m/s (exactly)

Therefore time before they meet is

Time = Distance / total speed

= D / S

= 50 metres / S m/s

= 50 / 1.34112 seconds

= 37.28 seconds (to the hundredth of a second)

8 0

3 years ago

Which represents the reflection of f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" al

Oduvanchick [21]

Answer:

The graph 1 will represent the equation.

Step-by-step explanation:

The given function is $f(x) = \sqrt{x}$ and the function will become $f(x) = \sqrt{- x}$ after a reflection over the y-axis.

Since after reflection over the y-axis the x-values of the function will change in sign and there will be no change in y-value.

Now, for x = 0, then y = 0.

For, x = - 1, then y = 1 and

For, x = - 4, then y = 2.

Therefore, graph 1 will represent the equation. (Answer)

6 0

3 years ago

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