3 years ago

Help with these

Mathematics

1 answer:

Vilka [71]3 years ago

5 0

-7/10 divided by 2/5 is -35/20 or -7/4 in the simplest form

-1/4 times (-4/3) is 4/12 or 1/3 in the simplest form

-3 1/3 or -10/3 times by -2 7/10 or -27/10 is 270/30 or 9

-10 2/7 or -72/7 divided by -4 4/11 or -48/11 is 792/336 or 33/14 in the simplest from

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Can someone help me ? i have no clue how to figure this out

Ad libitum [116K]

$\cos t (\sec t - \cos t) = \sin^2 t$

$\cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t$

$\dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t$

$1 - \cos^2 t = \sin^2 t$

Use the identity: $\sin^2 t + \cos^2 t = 1$ and solve for $\sin^2 t$ . You get: $\sin^2 t = 1 - \cos^2 t$

Do the substitution on the left side to get:

$\sin^2 t = \sin ^2 t$

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2 years ago

Read 2 more answers

1. At time t=0,500 bacteria are in a petting dish, and this amount triples every 15 days.

atroni [7]

Answer:

4 better inbox

Step-by-step explanation:

6 0

2 years ago

HELP NEEDED ASAP! WOULD BE APPRECIATED

Kamila [148]

First, write an inequality equation:

0.25x + 0.1y = 2

There's your first answer. You got this!

6 0

3 years ago

Help !! I need help with this math

allochka39001 [22]

Answer:

Step-by-step explanation:

Transformation that maps triangle XYZ into triangle X'Y'Z' is a translation 3 units to the right and 1 unit down, because

X(0,0)→X'(3,-1);
Y(2,3)→Y'(5,2);
Z(4,-1)→Z'(7,-2).

So, the algebraic ru;e of the transformation is

(x,y)→(x+3,y-1)

5 0

3 years ago

What are the solutions to the equation x-7/x=6?

Vilka [71]

Answer:

x=7

7-7/7-6=0

0/1=0

Zero divided by anything=0

7 0

1 year ago