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mash [69]
3 years ago
8

Pleasee help! Brainliest to correct

Mathematics
1 answer:
Ket [755]3 years ago
6 0

Answer:

3.6

Step-by-step explanation:

I=k/d^2

360=k/3^2

k=360*9

k=3240

I=k/d^2

250=3240/d^2

250d^2=3240

d^2=3240/250

d=3.6

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Which number is between 7.17 x 10^4 and 8.17 x 10^5
xxTIMURxx [149]

Answer:

71701,71702, 71703 etc

Step-by-step explanation:

Given :

7.17×10^{4} and 8.17×10^{5}

Now

7.17×10^{4}=71700 and

8.17×10^{5}=817000

There are so many numbers between 71700 and 817000

Like: 71701,71702, 71703 etc

8 0
3 years ago
Axis of symmetry: x=4; points: (3,-2), (6,-26); opening downward
Andru [333]
Vertex form is
y=a(x-h)^2+k
vertex is (h,k)
axis of symmetry is x=4, therfor h=4
y=a(x-4)^2+k

we have some points
(3,-2) and (6,-26)
input and solve for a and k

(3,-2)
-2=a(3-4)^2+k
-2=a(-1)^2+k
-2=a(1)+k
-2=a+k

(6,-26)
-26=a(6-4)^2+k
-26=a(2)^2+k
-26=a(4)+k
-26=4a+k

we have

-2=a+k
-26=4a+k
multiply first equation by -1 and add to second

2=-a-k
<u>-26=4a+k +</u>
-24=3a+0k

-24=3a
divide both sides by 3
-8=a

-2=a+k
-2=-8+k
add 8 to both sides
6=k

the equation is
y=-8(x-4)^2+6
3 0
3 years ago
Help me solve this statistics question please!!
Leni [432]

It's B, D, and E.

Hope ok. :)

7 0
3 years ago
Which one i greater 2/8 or 1/2 ?
ryzh [129]
\frac{2}{8}=\frac{1}{4}\\&#10;\frac{1}{2}=\frac{2}{4}\\\\&#10;\frac{2}{4}>\frac{1}{4} \Rightarrow\frac{1}{2}>\frac{2}{8}
5 0
3 years ago
Work out the surface area of this solid prism.
zhannawk [14.2K]
THE SURFACE AREA IS 3220CM^2
3 0
2 years ago
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