2 years ago

Is cos²α the same thing as cosα²?

Mathematics

1 answer:

Anna71 [15]2 years ago

7 0

Answer:

No, it is not the same thing.

Step-by-step explanation:

Hope this helps!

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Mathematics help please!!<br><br> Multiple questions - any help is appreciated!!

Cloud [144]

Https://us-static.z-dn.net/files/dfa/568f77bb33fc5a8f2808fc577636eb1a.jpeg

7 0

3 years ago

Solve x^2+5x-2=0 Enter your answers,as exact values, in the boxes.

Fed [463]

Answer:

√33

x = -5/2 ± ---------

Step-by-step explanation:

Through completing the square, we get:

x^2 + 5x + (5/2)^2 - (5/2)^2 - 2 = 0, or

(x + 5/2)^2 - 25/4 - 2 = 0.

This simplifies to

(x + 5/2)^2 = 33/4

Taking the square root of both sides yields:

x + 5/2 = ±√(33/4), which can be solved explicityl for x:

√33

x = -5/2 ± ---------

5 0

4 years ago

Natalie is in the business of manufacturing phones. She pays a cost of $100 per phone produced for materials and labor and also

victus00 [196]

Answer:

Down Here ↓↓↓↓↓

Step-by-step explanation:

Natalie pays $100 per phone or $100p

She pays a base price of $300 for renting equipment

The equation is C = $100p + $300

Number of phones manufactured Total Cost to manufacture phones

0 C = $100(0) + $300 = $300

1 C = $100(1) + $300 = $400

2 C = $100(2) + $300 = $500

3 C = $100(3) + $300 = $600

The equation is $100 for every p, phone, plus $300 for the price

The equation is C = $100p + $300

-Chetan K

7 0

3 years ago

Read 2 more answers

There are 2 green,5 yellow, 6 red,and 7 blue marbles in a bag. Erin picks one marble from the bag without looking. What is the p

Svetach [21]

Answer:

c 35%

Step-by-step explanation:

2 green,5 yellow, 6 red,and 7 blue marbles

2+5+6+7 = 20 marbles

P(blue) = blue marbles / total marbles

= 7/20

= 35/100

=35%

7 0

3 years ago

The radius of a cylinder is increased by 15% and its height is decreased by 20%. Find the percentage change in the volume of the

Alexxx [7]

First cylinder(V1) = $\pi$ r²h

insert 10 as r&h
⇒V1 = 1000 $\pi$

second cylinder(V2)= $\pi$ ×11.5² × 8 = 1058 $\pi$

V2-V1 = 58 $\pi$

100 × $\frac{58 \pi }{1000 \pi }$ = 5.8% increase

8 0

3 years ago