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3 years ago

Solve 2/3 + 5/8 and put answer in simplest form. O A. 1 1/2 O B.7/6 O c. 2/3 O D.9/6

Mathematics

1 answer:

Tatiana [17]3 years ago

6 0

Answer:

31/24 it is the answer in my point

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Can someone help meh find the measure of each angle indicated

Brut [27]

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4 years ago

Please don’t put any links because they don’t work just write the answer, thank you :)

AysviL [449]

Answer:

D. 19/20 mile

Step-by-step explanation:

Combine the fractions by finding a common denominator.

1/5 --> 4/20

1/4 --> 5/20

1/2 --> 10/20

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19/20

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3 years ago

Add and simplify <br> 9/10 + 1/9

arlik [135]

Answer:

Step-by-step explanation:

81/90 + 9/81 = 90/90 = 1

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3 years ago

A middle school has a student population of 800 students. A random group of 60 students at the school were asked if they would v

Eva8 [605]

Answer:

400

Step-by-step explanation:

i think you should revise the q. it looks incorrect...

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3 years ago

Each algorithm is applied to a group of 52 sample problems. The new algorithm completes the sample problems with a mean time of

dem82 [27]

Answer:

Therefore we fail to reject the Null hypothesis $H_0$

Because the is no sufficient evidence to support the claim of the alternative hypothesis $H_a$

Step-by-step explanation:

From the question we are told that

Sample size $n_1 =52$

Mean time 1 $\=x_1=24.04\ hours$

Mean time 2 $\=x_2=24.52\ hours$

Standard deviation $\partial _1=5.769$

Standard deviation $\partial _2=5.556$

Level of significance 0.05

The null hypothesis is $H_o: \mu_1=\mu_2$

Alternative hypothesis $H_a: \mu_1$

Generally the test statistics is mathematically represented as

$Z= \frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}}$

$Z= \frac{24.04-24.52}{\sqrt{\frac{5.769^2}{52}+\frac{5.5562^2}{52}}}$

$Z= -0.4321583379$

$Z= -0.43$

From Table the Z-critical value at $\alpha =0.05\ is\ -1.6449$

Therefore

Zcal> Zcritical

(-0.43)=(-1.645)

Generally we fail to reject the null hypothesis $H_0$ at $\alpha = 0.05$

Therefore we fail to reject the $H_0$

Because the is no sufficient evidence to support the claim of $H_a$

5 0

3 years ago