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Novosadov [1.4K]
3 years ago
15

If cos 0 = -4/7, what are the values of sin and tan ?

Mathematics
1 answer:
ollegr [7]3 years ago
7 0

Step-by-step explanation:

\cos( \frac{ - 4}{7} )

which means base = -4 ,perpendicular = ? ,hypotenuse = 7

let base = x perpendicular = y and hypotenuse = r

according to Pythagoras theorm

r²=x²+y²

y²= x² - r²

=( -4)²-(7)²

= 33

square root both sides

y = √33

value of sin and tan

\sin( \frac{ \sqrt{33} }{7} )

\tan( \frac{ - 4}{ \sqrt{33 } } )

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The Blinking Rockets baseball team has had 127,034 visitors to their fan website. Rounded to the nearest ten thousand how many v
horsena [70]

Answer:

Visitors = 130000

Step-by-step explanation:

Given

Visitors = 127034

Required

Approximate to the nearest ten thousand

First, identify the digit at the ten thousand position

From the given numbers of visitors, the digit is 2.

So, the next digit (which is 7) will be approximated and added to 2.

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7 0
3 years ago
9.48 as a mixed number in simplist form
mafiozo [28]

Answer:

<h2>9 12/25.</h2>

Step-by-step explanation:

9.48 as a mixed number in simplest form:

<em><u>948/100</u></em>

<em><u>948/100= 948 ÷ 4/100 ÷ 4</u></em>

<em><u>948/100= 948 ÷ 4/100 ÷ 4= 237/25</u></em>

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<u>9 12/25 is the mixed number.</u>

8 0
3 years ago
A random sample of 50 students from a high school with 900 students is surveyed. Each student is asked what science class he or
strojnjashka [21]

Answer: 50 and 900 is correct

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4 0
2 years ago
The formulae for kinetic energy is E =-mv2.<br><br> Find the value of E when m= 900 and v=1.3,
RSB [31]

Answer: ΔKE = 760.5 Joules

Step-by-step explanation:

Isnt the formula for ΔKE = 0.5m*v^2???

Im not going to use that formula you gave me, its wrong.

900/2 = 450

1.3^2 = 1.69

450 x 1.69 = 760.5 Jules

This is also the wrong subject btw

8 0
3 years ago
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hope it hrlps
8 0
3 years ago
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