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spin [16.1K]
3 years ago
14

-2log5 7x=2 the 5 is small please help me

Mathematics
1 answer:
RSB [31]3 years ago
3 0
-2log_5 7x = log_5 2

log_5[1/(7x)^2] = log_5 2

log_5(1/49x^2) = log_5 2

log_5(1 - 49x^2) = log_5 2

1 - 49x^2 = 2

You finish.

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At the park there is a pool shaped like a circle. A ring-shaped path goes around the pool. Its inner diameter is 22yd and its ou
jeka94
First, we need to think about what we're actually solving for: the area of the path. To find this, we can find the area of the whole thing, minus the area of the pool.

The diagram would look something like the picture I attached. We know that to find the area of a circle, you do πr^2. The radius is half of the diameter, so halve the diameters:

22/2 = 11 yards
32/2 = 16 yards

Then solve for the area of both circles.
π11^{2}= 121π ≈ <span>380.13 (area of the pool)</span>
π16^{2}= 256π ≈ <span>804.25 (area of the whole thing)
</span>
Next, subtract the area of the pool from the area of the whole thing to find the area of the walkway:
804.25 - 380.13 = 424.12 (area of the walkway)

Finally, divide the area of the walkway by 6 to see how many gallons of paint you'll need:

424.12 ÷ 6 ≈ 70.69

So you'll need 71 gallons of paint!

Hope I helped and let me know if you have any questions :)


6 0
3 years ago
PLEASE HELP WiLL MAKE BRAINLIEST&gt; A bird sits on top of a lampost. The angle of depression from the bird to the feet of an ob
Lisa [10]

See the attached picture:

4 0
3 years ago
Solve for x<br> -2x + 4 = 6x - 12
aleksklad [387]

Answer:

x=2

Step-by-step explanation:

-2x+4=6x-12  Add 2x to both sides.

<u>+2x    +2x</u>

4=8x-12         Add 12 to both sides.

<u>+12  +12</u>

16=8x            Divide by 8 on both sides.

<u>/8 /8</u>

2=x

Hope this helps you out and have a great day (~^▽^)~

5 0
3 years ago
Read 2 more answers
IF YOU HELP ME WITH THIS I WILL HELP YOU WITH SOMETHING IF YOU NEED HELP!! State if each triangle is a right triangle. The trian
juin [17]

Answer:

6 - yup        7 - nope

Step-by-step explanation:

If the triangle satisfies the pythagoreon theorem, then it is a right triangle

so 6 is a yeah

then for 7, the hypotunese always is greater than the legs in a right triangle, so 7 is no

4 0
3 years ago
For example, if it takes 15 hours to travel 900 miles. How many miles will you travel in one hour?
dalvyx [7]

Answer:

60 miles

Step-by-step explanation:

If it takes 15 hours to travel 900 miles then it gives you the fraction 15/900 where the numerator(top number) is 15 and denominator(bottom number) is 900.

Then to simplify it: since 15 is a common factor of itself(15) and 900, 15/15 = 1(1 hour) and 900/15 = 60(60 miles).

8 0
3 years ago
Read 2 more answers
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