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Wittaler [7]
3 years ago
12

96 points here, having to ask same question again - please help a brother out.

Mathematics
2 answers:
Sauron [17]3 years ago
7 0
See attached pictures for answers

marin [14]3 years ago
3 0

the equation is - tan2 x + sec2 x = 1.

Left hand side identity : - tan2 x + sec2 x.

Trigonometric function : tan x = sin x / cos x,

Reciprocal identity : sec x = 1/cos x.

- tan2 x + sec2 x = - (sin x/cos x)2 + (1/cos x)2

= - sin2 x/cos2 x + 1/cos2 x

= (1 - sin2 x)/cos2 x

Pythagorean identity : sin2 x + cos2 x = 1 .

= cos2 x / cos2 x

= 1

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For f(x) = -4x -9 evaluate for f(6.5)​
kolezko [41]

Answer:

f=−35

Step-by-step explanation:

<em>1.Simplify  4×6.5 to 26</em>

f=-26-9

<em>2. Simplify  -26-9 to  -35</em>

f=-35

7 0
3 years ago
Need Help !!!!!!!!!!!!
nika2105 [10]

Answer:

C

Step-by-step explanation:

The slope m of the functions give the measure of the rate of change.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

g(x) = \frac{5}{2} x - 3 ← is in slope- intercept form

with slope m = \frac{5}{2} = 2.5

Calculate the slope of f(x) using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, - 3.5) and (x₂, y₂ ) = (1, - 1) ← 2 points from the table

m = \frac{-1+3.5}{1-0} = 2.5

Hence

The slopes of g(x) and f(x) are both m = 2.5, thus

The functions increase at the same rate → C

3 0
3 years ago
Use an area model to solve. 1 3/4 X 2 1/2
Murrr4er [49]

the answer is 1 2/1

hope this helps!!

6 0
3 years ago
Assume a and b are whole numbers, and a&gt;b. Which expression has the least value?
dedylja [7]

a > b

A . a^5b^3/ab^4 = a^4/b

B. a^4 / a*a*a*a = a^4 / a^4 = 1

C. ab^2 / a^2b = b/a

D. b*b*b/b^3 = b^3/b^3 = 1

B and D, doesn't matter what values of a and b it's always equal 1

Lets say a = 2 and b = 1

A. a^4/b = 2^4 / 1 = 16/1 = 16

C. b/a = 1/2 = 0.5

So C has the least value

Answer:

ab^2 / a^2b

8 0
3 years ago
Find the value of M in the following figure.
Ivahew [28]
180 - (30+35)
= 180 - 65
= 115

M = 115 (vertical angles)
4 0
3 years ago
Read 2 more answers
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