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Andre45 [30]
3 years ago
11

Given: cos(2x)=-1/9 Angle x is in quadrant I. Find: cos(x)

Mathematics
1 answer:
sergey [27]3 years ago
5 0
My opinion about this answer is 7
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Convert 50 degrees F to K.<br> [?]K
gtnhenbr [62]

Answer: 283.15

Step-by-step explanation: (50°F − 32) × 5/9 + 273.15 = 283.15K

5 0
3 years ago
Read 2 more answers
Simplify. Please and thank you.
Ivan
<span>Cancel <span>r2</span>
</span><span><span><span>(s4t)</span>/(</span><span>s<span>t3)</span></span></span>
2 <span>Use Quotient Rule: <span><span><span>xa/</span><span>xb</span></span>=<span>x^<span>a−b</span></span></span>
</span><span><span>s^<span>4−1</span></span><span>t^<span>1−3</span></span></span>
3 <span>Simplify <span>4−1</span> to 3
</span><span><span>s^3</span><span>t^<span>1−3</span></span></span>
4 <span>Simplify <span>1−3</span> to <span>−2</span>
</span><span><span>s^3</span><span>t^<span>−2</span></span></span>
5 <span>Use Negative Power Rule:<span><span>x^<span>−a</span></span>=<span>1/<span>xa</span></span></span>
</span><span><span>s^3</span>×<span>1/<span>t2</span></span></span>
6 <span>Simplify
</span><span><span>(s3)/(</span><span>t2)</span></span>
Done so the answer is a. then
8 0
3 years ago
PLEASE HELP!!!! i put a picture<br><br> I-ready work
Anna11 [10]
Answer:
100 minutes
All I did was add

7 0
3 years ago
What is the cost of each chicken and what is the cost of each duck
zimovet [89]

Answer: $8 chicken $5 duck

Step-by-step explanation:

50x+30y=550

x=8

y=5

400+150=550

7 0
3 years ago
Read 2 more answers
If 35 gms of pure drug are contained in 150 mls, how many grams are contained in 75 mls?
Leviafan [203]

Answer:

17.5

Step-by-step explanation:

The ratio of "pure drug" to liquid is 35:150

Therefore to evaluate for 75 mls we get the ratio 75/2150 or simply 1/2

we can then multiply 35 by the ratio 1/2

35/2=17.5

State the answer

In 75 mls there are 17.5 grams of pure drug

8 0
3 years ago
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