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Ostrovityanka [42]
3 years ago
11

Solve 4/5x - 3 3/4x =2 1/2

Mathematics
1 answer:
faust18 [17]3 years ago
4 0
First one subtract 4/5 and 3 3/4 then divide both sides by the number you get from subtracting.
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Find the cartesian equation of r = 8 sin thet + 8 cos theta
Semenov [28]
Use following substitutions: 

<span>r cosθ = x </span>
<span>r sinθ = u </span>
<span>r² = x² + y² </span>

<span>r = 8 cosθ + 4 sinθ </span>

<span>Multiply both sides by r </span>

<span>r² = 8 r cosθ + 4 r sinθ </span>
<span>x² + y² = 8x + 4y </span>

<span>This is equation of circle. We can put in standard form: </span>

<span>x² − 8x + y² − 4y = 0 </span>
<span>x² − 8x + 16 + y² − 4y + 4 = 16 + 4 </span>
<span>(x − 4)² + (y − 2)² = 20 </span>

<span>Circle centered at point (4, 2) with radius = √20</span><span />
4 0
3 years ago
No link or bot answer right
Margaret [11]

Answer:

1/6^8

Step-by-step explanation:

the answer is the one right next to the submit answer

3 0
2 years ago
Simplify the expression shown. You must show your work to receive credit.
ZanzabumX [31]

ANSWER

12 \sqrt{5}

EXPLANATION

The given expression is

\sqrt{2}  \times  \sqrt{72}  \times  \sqrt{5}

The middle radical contains a perfect square.

\sqrt{2}  \times  \sqrt{36 \times 2}  \times  \sqrt{5}

\sqrt{2}  \times  \sqrt{36}   \times  \sqrt{2} \times  \sqrt{5}

6\sqrt{2}  \times  \sqrt{2} \times  \sqrt{5}

Note that:

\sqrt{a}  \times  \sqrt{a}  = a

6\times 2 \sqrt{5}  = 12 \sqrt{5}

4 0
2 years ago
Find the area of the shaded region.<br>pls do this with explanation.<br>​
vladimir1956 [14]

Answer:

first find the area of the big rectangle = 12×14=168

area of the small unshaded rectangle =2×5×6=60

area of the shaded region = 168-60=108

6 0
2 years ago
Read 2 more answers
Laura randomly pulled a marble from a bag and then replaced it.
marissa [1.9K]

Answer: C. 180 times

Step-by-step explanation:

From the 60 trials, the percentage of times Laura picked a green marble was:

= 100% - Percentage of times blue and red were picked

= 100% - 25% - 15%

= 60%

If these results were repeated with 300 trials, the number of times Laura would be expected to pick green would be:

= 60% * 300

= 180 times

3 0
3 years ago
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