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daser333 [38]
3 years ago
8

Please help me ill mark you brainliest and please show your work :)

Mathematics
1 answer:
Vesna [10]3 years ago
7 0
No solution I hope it helps you out

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Please help me answer this question.
Alex787 [66]
1. Change x = 4t into x = 3t

4t\cdot\frac{3}{4}=3t so

y=(\frac{3}{4}t)^2-1=\frac{9}{16}t^2-1

Answer A and D are wrong.

2. Change x = 4t into x = 2t

4t\cdot\frac{1}{2}=2t and

y=(\frac{1}{2}t)^2-1=\frac{t^2}{4}-1

Answer b is correct.

3.  Change x = 4t into x = 8t

4t\cdot2=8t and

y=(2t)^2-1=4t^2-1

Answer C. is correct, E. is wrong.

7 0
3 years ago
Solve 4 square root of 3 = 8cos
sukhopar [10]

Therefore \theta = 30^\circ

Step-by-step explanation:

Given,

4\sqrt{3 } =8 cos \theta

\Leftrightarrow cos \theta =\frac{4\sqrt{3} }{8}

\Leftrightarrow cos \theta =\frac{\sqrt{3} }{2}

\Leftrightarrow cos \theta =cos 30^\circ

\Leftrightarrow  \theta = 30^\circ

Therefore \theta = 30^\circ

4 0
3 years ago
EASY 12 POINTS ❗️❗️
Taya2010 [7]

Answer:

A  Water freezes in the cracks.

Step-by-step explanation:

Brainiest plz hope that help??

7 0
3 years ago
Helppppp me please this twi ​
8_murik_8 [283]

Answer:

4.) 7 : 4 = 36[g] : x [g]

    7 * x [g] = 4 * 36 [g]

    7 * x [g] = 144 [g]

    x [g] = 144 [g] / 7

    x [g]  ≈ 20, 57 [g]

5.) 3:2   250

3x + 2x =250

5x=250

x=50

3x=3*50=150

2x=2*50=100

4 0
3 years ago
Find the size of angle XYZ.<br>Give your answer to 1 decimal place.<br>15 cm<br>6 cm
Elan Coil [88]
In your calculator type cos^-1 (6/15)

66.4 degrees

Hope this helps
5 0
3 years ago
Read 2 more answers
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