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3 years ago

Which is greater -0.25 or 0.8

Mathematics

2 answers:

sladkih [1.3K]3 years ago

7 0

0.8

Not only would even 0.25 be smaller than 0.8, but it's also a negative, AKA below zero.

GrogVix [38]3 years ago

5 0

0.8 is greater because it is a positive number..

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Cosx=4/5 what is sin2x cos2x and tan2x

earnstyle [38]

Answer:

-24/5

Step-by-step explanation:

The solution to the problem is as follows:

cscx < 0 means 1/sinx < 0, or sinx < 0.

sinx = -3/5 because you're dealing with a 3-4-5 triangle, and we established

sinx is negative.

sin2x = 2sinxcosx = 2*-3/5*4/5 = -24/25

cos(2x) = cos^2(x) - sin^2(x) = 16/25 - 9/25 = 5/25 = 1/5

tan2x = sin2x / cos2x = -24/5

4 0

2 years ago

Find the area of the region that lies inside both curves.<br> r = 3+2cose, r = 3-2cose

Kitty [74]

https://socratic.org/questions/how-do-you-find-the-area-of-the-region-bounded-by-the-polar-curves-r-3-2cos-thet#112305

go to link for the answer

6 0

2 years ago

Help with this question pls

GrogVix [38]

Answer:

B .75

Step-by-step explanation:

hope this helped <3

4 0

2 years ago

The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they

Jobisdone [24]

The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

$P(c)=-20c^2+320c+5120 \\ \\
a=-20 \\
b=320 \\ \\
\hbox{the vertex } (h,k): \\
h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\
k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\
=-1280+2560+5120=6400$

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.

4 0

3 years ago

Read 2 more answers

There are many cylinders with a height of 9 inches. Let r represent the

bazaltina [42]

Answer: 1- 9

2-36

3-81

Step-by-step explanation:

4 0

2 years ago