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3 years ago

Hewo do u know fractions because I am dying from it T-T 1/2+___=7/6 Help T-T

Mathematics

1 answer:

Sergio039 [100]3 years ago

4 0

Answer:

1/2 + 4/6 = 7/6

Step-by-step explanation:

1/2 would be 3/6 so add 4/6 would be 7/6 uwu.

Hope this helps :)) Plz mark brainliest :))

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-1/2 + 1 1/2 + 3 - n

GREYUIT [131]

Answer:

The answer all together would be 5 minus n.

Step-by-step explanation:

a negative and a positive equals a positive so -1/2 + 1 1/2 would equal 2 and 2 + 3 equals 5. Then, the remaining numbers are 5 and n. The final answer is 5 minus n because n is unknown.

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3 years ago

How many units? What is e value of a?

kkurt [141]

Answer:

a = 14

Step-by-step explanation:

3a = a + 28 ➡ 2a = 28 ➡ a = 14

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3 years ago

Which expression is NOT equivalent to 8 . -54?

ivanzaharov [21]

Answer:

i need help with this too

Step-by-step explanation:

lmk if you get the answer

8 0

3 years ago

Read 2 more answers

Offering 50 points really need help on homework

astra-53 [7]

i cant see the photo, it is black, and i cant see it can u post another one,

then i will help (:

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3 years ago

. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al

Shtirlitz [24]

Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

$E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }$

$n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2$

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, $Z_\frac{\alpha }{2}$ is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, $Z_\frac{\alpha }{2}$ = 3. Hence:

$n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900$

6 0

3 years ago