1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetllana [295]
2 years ago
11

A rock is thrown upward with a velocity of 12 meters per second from the top of a 34 meter high diff, and it moloses the diff on

the way back down, When will the rock
be 6 meters from ground level? Round your answer to two decimal places,
Mathematics
1 answer:
zalisa [80]2 years ago
6 0
It is 10.5 because it is
You might be interested in
Bill said, “I am half as old as my sister was last year.” If Bill is now 8 years old, how old is Bill’s sister?
Licemer1 [7]

Answer:

i think 14

Step-by-step explanation:

6 0
3 years ago
Find the slope of the line that passes through each pair of points.<br> C(0, –2), D(3, -2)
zaharov [31]

Answer:

0

Step-by-step explanation:

y2-y1/x2-x1

-2+2/3-0

0/3

= 0

5 0
2 years ago
Andy drove 840 miles in 12 hours. How much miles can he drive per hour?
Sergio039 [100]

Answer:

70

Step-by-step explanation:

840 / 12 = 70

7 0
3 years ago
Read 2 more answers
PLEASE HELP LOTS OF POINTS
aleksandr82 [10.1K]
Plug in the to X value in
4 0
3 years ago
Read 2 more answers
If 180° &lt; α &lt; 270°, cos⁡ α = −817, 270° &lt; β &lt; 360°, and sin⁡ β = −45, what is cos⁡ (α + β)?
eduard

Answer:

cos(\alpha+\beta)=-\frac{84}{85}

Step-by-step explanation:

we know that

cos(\alpha+\beta)=cos(\alpha)*cos(\beta)-sin(\alpha)*sin(\beta)

Remember the identity

cos^{2} (x)+sin^2(x)=1

step 1

Find the value of sin(\alpha)

we have that

The angle alpha lie on the III Quadrant

so

The values of sine and cosine are negative

cos(\alpha)=-\frac{8}{17}

Find the value of sine

cos^{2} (\alpha)+sin^2(\alpha)=1

substitute

(-\frac{8}{17})^{2}+sin^2(\alpha)=1

sin^2(\alpha)=1-\frac{64}{289}

sin^2(\alpha)=\frac{225}{289}

sin(\alpha)=-\frac{15}{17}

step 2

Find the value of cos(\beta)

we have that

The angle beta lie on the IV Quadrant

so

The value of the cosine is positive and the value of the sine is negative

sin(\beta)=-\frac{4}{5}

Find the value of cosine

cos^{2} (\beta)+sin^2(\beta)=1

substitute

(-\frac{4}{5})^{2}+cos^2(\beta)=1

cos^2(\beta)=1-\frac{16}{25}

cos^2(\beta)=\frac{9}{25}

cos(\beta)=\frac{3}{5}

step 3

Find cos⁡ (α + β)

cos(\alpha+\beta)=cos(\alpha)*cos(\beta)-sin(\alpha)*sin(\beta)

we have

cos(\alpha)=-\frac{8}{17}

sin(\alpha)=-\frac{15}{17}

sin(\beta)=-\frac{4}{5}

cos(\beta)=\frac{3}{5}

substitute

cos(\alpha+\beta)=-\frac{8}{17}*\frac{3}{5}-(-\frac{15}{17})*(-\frac{4}{5})

cos(\alpha+\beta)=-\frac{24}{85}-\frac{60}{85}

cos(\alpha+\beta)=-\frac{84}{85}

4 0
3 years ago
Other questions:
  • HELP DUE TONIGHT
    11·1 answer
  • ~Please help!~<br> Please show work :)
    9·2 answers
  • What is 24% of 4,6 million
    11·2 answers
  • What’s the possible value of 4m-2?
    8·1 answer
  • Write 30/4 as a mixed number plz help me!!!
    7·2 answers
  • <img src="https://tex.z-dn.net/?f=%20tan%20%5Calpha%20%20%5Ctimes%20sin%20%5Calpha%20%20%3D%20" id="TexFormula1" title=" tan \al
    9·1 answer
  • Original price: $80; Markdown: 36%
    8·2 answers
  • 3. Find the length of the missing side using the Pythagorean Theorem. Round to the nearest tenth if necessary.
    8·1 answer
  • Helpppppppppppppppppppppppp
    7·1 answer
  • What is the difference between permutations and combinations.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!