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2 years ago

BRAINLIEST + 10 POINTS

Mathematics

2 answers:

VARVARA [1.3K]2 years ago

7 0

Answer:

what am I supposed to anwser

Maslowich2 years ago

3 0

Answer:

area- 628

circumference- 62.8

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What is the difference between mean and median??? Plz explain throughly :)

Neko [114]

Answer:

The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers

Step-by-step explanation:

hope it help

5 0

2 years ago

Read 2 more answers

Write the ratio 2.5 to 3.15 as a fraction in simplest form

Nuetrik [128]

The left figure that is 2.5 is taken as numerator while the right figure that is 3.15 is take as denominator.
therefore the fraction is
2.5/3.15
the multiply by a 100 to remove the decimals to give
250/315
in simplest form the fraction is divided by 5 to give
50/63

8 0

2 years ago

What is the perimeter of the trapezoid?

andreyandreev [35.5K]

first find the length of the larger base.

Which would be the bottom in this case.

Then, find the sum of all of the sides.

It's important to note that since this is an isosceles trapezoid, both of the non-parallel sides will have the same length.

4 0

2 years ago

A plane flew 145km/h faster when it was flying with the wind than it would have flown with still air, if it’s speed with the win

pshichka [43]

Answer:

Speed of plane in still air = 825 km/h

Step-by-step explanation:

Given:

Speed of plane with the wind is 145 km/h faster than what it would have with still air.

Speed of plane with wind = 970 km/h

To find speed of plane in still air.

Solution:

Let speed of plane in still air be = $x$ km/h

Thus speed of plane with wind would be given as = $(x+145)$ km/h

Speed of plane with wind is given =970 km/h

So, we have:

$x+145=970$

Solving for $x$ .

Subtracting both sides by 145.

$x+145-145=970-145$

∴ $x=825$ km/h (Answer)

Thus, speed of plane in still air = 825 km/h

8 0

2 years ago

For each exponential function, a) write a new function, and b) sketch the corresponding graph (on the same coordinate plane) bas

Luda [366]

A reflection over the y-axis means that "x" will change signs.

A dilation causes the graph to stretch (if the factor is greater than 1) or shrink/compress (if the factor is between 0 and 1). Usually, the instructions will say whether it is a vertical or horizontal stretch (or shrink) so you know which variable is affected. Since it was not specified, I am going to assume that this is both a vertical and a horizontal shrink.

Answer: y = $\frac{1}{2}$ ( $4^{-2x}$ )

7 0

2 years ago