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Novosadov [1.4K]
3 years ago
8

Can someone please help me with this, I don't have much time!!!

Mathematics
1 answer:
kolezko [41]3 years ago
4 0

Answer:

x=8.3 y=16.1

Step-by-step explanation:

87+12y+-7=180

29+9x+6=180

just add like terms then solve

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In the section describing the survey methods, the report states, “For results based on the total sample of national adults, the
Yakvenalex [24]

Answer:

The interpretation of that same problem is listed throughout the section below on explanation.

Step-by-step explanation:

<u>Interpretation:</u>

  • Researchers seem to be confident with 95% that the sample selection standard error seems to be + as well as - 4 percent respectively.
  • This same margin of sampling error would then decrease from either the mean or average value by four percentage points smaller or even larger, it describes the survey method.

So that the above is the right answer.

8 0
3 years ago
Please help me with this!!!
34kurt

Answer:

Please find attached pdf

Step-by-step explanation:

Download pdf
4 0
2 years ago
Can some explian this?
KiRa [710]

Answer: it’s asking where do the points meet at hopes this helps

Step-by-step explanation:

8 0
3 years ago
Find the angles between -pi and pi that satisfy:<br><br> (−√3) sin(v)+cos(v)=√3
MAXImum [283]

Observe that

\sin\left(\dfrac\pi6-v\right)=\sin\dfrac\pi6\cos v-\cos\dfrac\pi6\sin v=\dfrac12\cos v-\dfrac{\sqrt3}2\sin v

In the original equation, divide both sides by \dfrac12:

-\sqrt3\sin v+\cos v=\sqrt3\implies\dfrac12\cos v-\dfrac{\sqrt3}2\sin v=\dfrac{\sqrt3}2

\implies\sin\left(\dfrac\pi6-v\right)=\dfrac{\sqrt3}2

Next,

\sin x=\dfrac{\sqrt3}2\implies x=\dfrac\pi3+2n\pi,x=\dfrac{2\pi}3+2n\pi

where n is any integer. Then

\sin\left(\dfrac\pi6-v\right)\implies v=-\dfrac\pi6-2n\pi,v=-\dfrac\pi2-2n\pi

Fix n=0 to ensure -\pi, so that

v=-\dfrac\pi6,v=-\dfrac\pi2

3 0
3 years ago
The surface area of a cone with radius r units and slant height s units is shown below:
Ganezh [65]
Surface area of a cone = π{rs+r²}<br />                                     =πr{s+r}<br />part 1:if π is 6 units and s is 4 units then r would be 3.14 ×6 {4+6}<br /><br />part 2: area of a cone = 3.14 ×6×10<br />                                  =31.4×6<br />                                    = 188.4 units²<br />the surface area = 188.4 <br />units²<br /> hope i helped 
4 0
3 years ago
Read 2 more answers
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