2 years ago

3 (without using trig table) evaluate It tan 60 x tan 30 divided by Tan 60 + tan 30

Mathematics

1 answer:

Marizza181 [45]2 years ago

8 0

Answer:

$1.25332$

Step-by-step explanation:

$tan(30 times tan(60 ) \div \tan(60 \div + 30)$

You might be interested in

I’LL GIVE BRAINLIEST!

astraxan [27]

Answer:

what grade are you

Step-by-step explanation:

5 0

3 years ago

Please I need help ASAP

sergey [27]

Answer:

it is the first one yy,yg,yb,gb,gg,and bb

your welcome

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The measurement of the radius of the end of a log is found to be 9 inches, with a possible error of 1/2 inch. Use differentials

enot [183]

Answer:

$\pm 9in^2$

Step-by-step explanation:

We are given that

Radius of end of a log, r= 9 in

Error, $\Delta r=\pm 1/2$ in

We have to find the error in computing the area of the end of the log by using differential.

Area of end of the log, A= $pi r^2$

$\frac{dA}{dr}=2\pi r$

$\frac{dA}{dr}=2\pi (9)=18\pi in^2$

Now,

Approximate error in area

$dA=\frac{dA}{dr}(\Delta r)$

Using the values

$dA=18\pi (\pm 1/2)$

$\Delta A\approx dA=\pm 9in^2$

Hence, the possible propagated error in computing the area of the end of the log $=\pm 9in^2$

6 0

3 years ago

Read 2 more answers

If y varies directly as x, what is the value of y in these ordered pairs? (5, 20) and (15, y)

evablogger [386]

Answer:

y=60

Step-by-step explanation:

Multiply the x by 4

8 0

3 years ago

-12x=-75-11y<br> -5x=-89-11y

Elenna [48]

12x - 11y = 75 . . . . . . . . (1)
5x - 11y = 89 . . . . . . . . (2)
(1) - (2): 7x = -14
x = -2
From (1): 12(-2) - 11y = 75
-24 - 11y = 75
-11y = 75 + 24 = 99
y = -9
Therefore, x = -2 and y = -9

8 0

4 years ago