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2 years ago

Please help urgently i am not sure what to do

Mathematics

1 answer:

Flura [38]2 years ago

7 0

Step-by-step explanation:

5 * 5²

= 5 ^ (1 + 2)

= 5³

Hope it will help

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9. Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite class. In

Tatiana [17]

Answer:

Step-by-step explanation:

For the null hypothesis,

H0: p = 88

For the alternative hypothesis,

Ha: p < 88

Considering the population proportion, probability of success, p = 0.88

q = probability of failure = 1 - p

q = 1 - 0.88 = 0.12

Considering the sample,

Sample proportion, P = x/n

Where

x = number of success = 21

n = number of samples = 32

P = 21/32 = 0.66

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.66 - 0.88)/√(0.88 × 0.12)/32 = - 3.83

The corresponding p value would be determined by looking at the normal distribution table for the area below the z score. Therefore,

P value = 0.00006

8 0

3 years ago

a bird of species a when diving can travel four times as fast as a bird of species b top speed if the total speeds of these two

weeeeeb [17]

X will be the speed of species b and 4x will be the speed of species a:

x + 4x = 180
5x = 180
x = 180 / 5
x = 36 m/h

If species b has a speed of 36 m/h, the speed of species a is 4 times that:

4 x 36 = 144 m/h.

Answer:

$\boxed {\bf A~=~36~m/h~and~B~=~144~m/h}$

Hope it helped,

Happy homework/ study/ exam!

4 0

2 years ago

Please Answer This, the question is on the picture. it needs to be a fraction

tino4ka555 [31]

Answer:

x = 33

Step-by-step explanation:

sin 29° = 16/x

x = 33

7 0

2 years ago

Bruno and Amelia have 112 newspapers to deliver. Bruno delivers three fourths of the news papers, Amelia delivers one seventh pf

almond37 [142]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Use distributive property to rewrite expression -8((-2-3/4)-8)

Stells [14]

Answer:

-86

Step-by-step explanation:

-8((-11/4)-8)

((11/4-8)

8x(-43/4)

-2×43=-86

4 0

3 years ago