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Dovator [93]
3 years ago
5

If H be the H.M. between a and b. prove that 1/H-a + 1/H-b = 1/a+1/b​

Mathematics
1 answer:
____ [38]3 years ago
3 0

if susjwmaoakkaajKIJahabsbzh

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Which choice is equivalent to the quotient below? √64/√4<br>a. √2<br>b. √4/4<br>c. √8/2<br>d. 4​
Ksju [112]

Step-by-step explanation:

you did not even try a calculator to find the result ?

64 is 8×8 or 8².

so, sqrt(64) = 8.

similarly for 4 :

4 is 2×2 or 2².

so, sqrt(4) = 2

so,

sqrt(64)/ sqrt(4) = 8 / 2 = 4

so, d. is the right answer.

4 0
2 years ago
Convert the measurements as indicated 4^1/4 ft to inches
Nadya [2.5K]

Answer:

Step-by-step explanation:

if it is (4)^(1/4) ft.

4^{\frac{1}{4} } =(2^2)^{\frac{1}{4} }\\=2^{\frac{2}{4} }\\=\sqrt{2} ft\\=12\sqrt{2} ~inches.\\\approx 16.97 inches

if it is (4^1)/4

then

\frac{4^1}{4} =\frac{4}{4} =1 ~ft=12~inches

3 0
3 years ago
A test grade was 92%. 60 items were correct. How many test items were there?
Anna11 [10]
Set up an inequality:

\frac{92}{100}=\frac{60}{x}

Cross-multiply:
92x=6000
x=65 questions


6 0
3 years ago
28a-4a^2<br> Helpp it’s simplifying
olga nikolaevna [1]

Answer:

{ \tt{ = 28a -  {4a}^{2} }} \\  = 4a(7 - a)

4 0
3 years ago
PLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE IN 15 MINUTIES !!!ANYONE PLEASEPLZ HELP !!!! WILL MARK BRAINLIEST, THIS IS DUE I
prohojiy [21]

Answer:

Step-by-step explanation:

the answer is h

8 0
3 years ago
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