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Nady [450]
3 years ago
10

Please please help. Marking Brilliant for the correct answer

Mathematics
1 answer:
NISA [10]3 years ago
5 0

Answer:

x = 19

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(x-7+4) * 4 = 8^2

(x-3)*4 = 64

Divide each side by 4

x-3 =16

Add 3 to each side

x-3+3 = 16+3

x = 19

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velikii [3]

Answer:

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Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

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Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000​.

Step 4: In the same vein, $x\%=750000$x%=750000​.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1)​.

$x\%=750000(2)$x%=750000(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%​=

3000000

750000​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

x%

100%​=

750000

3000000​​

$\Rightarrow x=25\%$⇒x=25%​

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