2 years ago

The equation sec^2x-1=tan^2 x is an identity. True or false?

Mathematics

1 answer:

worty [1.4K]2 years ago

6 0

The answer i would believe is to be true.

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What is the average rate of change from x = 0 to x = 4?

hammer [34]

1) find the corresponding y values for when x = 0 and when x = 4,
when x = 0, y = 4
when x = 4, y = 4

the coordinates are (0,4) and (4,4)

2) to calculate the average rate of change, find the slope of the two points:

(0,4) (4,4)

(change in y) 4 - 4 = 0
(change in x) 4 - 0 = 4

0/4 = 0

the average rate of change is 0!

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2 years ago

How would you convince a fellow student hat the number 0.57 is a rational number

Pavlova-9 [17]

Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!

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3 years ago

Need answers ASAP

andrew-mc [135]

Data:
r (radius) = 14 m
h (height) = 6 m
v (volume) = ?

Formula:
$V = \pi *r^2*h$

Solving:
$V = \pi *r^2*h$
$V = \pi *14^2*6$
$V = \pi *196*6$
$\boxed{\boxed{V = 1176 \pi\:m^3}}\end{array}}\qquad\quad\checkmark$

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3 years ago

Find P(4).<br> A 1/8<br> B 1/4<br> C 1/2

olga nikolaevna [1]

The correct answer would be A. There is only a 1/8th percent chance of the spinner landing on 4.

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2 years ago

A bank account earns interest at a rate of 3.5% per year ( in other words it increases in value by that percent) and starts with

LenKa [72]

Annually cumulating interest can be determined by the following formula:

$W = P(1+r)^{y}$

r represents the interest rate as a decimal, and P represents the starting amount of money.

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3 years ago