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dimulka [17.4K]
3 years ago
6

The marks obtained by six boys in a test are 20,25,15,30,27 and 18. Find the mea

Mathematics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer:

googke translate type in the words and write them out

Ymorist [56]3 years ago
5 0

Answer:

22.5.

Step-by-step explanation:

The mean of 20,25,15,30,27 and 18

= (20+25+15+30+27+18) / 6

= 135/6

= 22.5.

The second part is incomplete but the modal sport is Ampe.

(This is the sport that most pupils play).

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Find the slope of the line passing through the points <br> , −8−3<br> and <br> , −34<br> .
alukav5142 [94]

Slope of the line passing through two points <span><span>P=<span>(<span><span>x1</span>,<span>y1</span></span>) </span></span></span>and <span><span>Q=<span>(<span><span>x2</span>,<span>y2</span></span>)</span></span></span> is given by <span><span>m=<span><span><span>y2</span>−<span>y1/</span></span><span><span>x2</span>−<span>x1</span></span></span></span></span>.

We have that <span><span><span>x1</span>=−8</span></span>, <span><span><span>y1</span>=−3</span></span>, <span><span><span>x2</span>=−3</span></span>, <span><span><span>y2</span>=4</span></span>.

Plug given values into formula for slope: <span><span>m=<span><span><span>(4)</span>−<span>(<span>−3</span>)/</span></span><span><span>(<span>−3</span>)</span>−<span>(<span>−8</span>)</span></span></span>=<span>7/5</span></span></span>.

Now y-intercept is <span><span>b=<span>y1</span>−m⋅<span>x1</span></span></span> .

<span><span>b=−3−<span>(<span>7/5</span>)</span>⋅<span>(<span>−8</span>)</span>=<span>41/5.</span></span></span>

Finally, equation of the line can be written in the form <span><span>y=mx+b</span></span>.

<span><span>y=<span>7/5</span>x+<span>41/5</span></span></span>

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If you know the circumference of a circle, which step(s) can you follow to find its radius?
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A.
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Answer:

75

a(0.80)=60

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a=75

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2x - 2 \geqslant  - 26
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The made 9 pounds of fudge . The fudge was separated into 3/4 pound blocks . They sell each block for $6.50 .if they sell all th
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