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dsp73
2 years ago
5

Brenda was going to sell all of her stamp collection to buy a video game after selling half of them she changed her mind she the

n bought thirteen more how many did she start with if she had 33
Mathematics
1 answer:
BigorU [14]2 years ago
4 0

Answer:

60 stamps

Step-by-step explanation:

Has 33 now. Before adding 13 stamps, she had (33-13) 30. This is half of her total, since she already sold half. To get the whole, multiply 30 by 2. 60 She started with 60

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Lesechka [4]

We have the base measurement for the triangles composing the sides. We need their altitude.  

Imagine a right triangle with these sides:  

(1) from the apex of the pyramid to the point on the base directly underneath it (471 ft);  

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Using the Pythagorean Theorem, we find the hypotenuse to be  

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3 years ago
A bank manager wants to encourage new customers to open accounts with principals of at least ​$. He decides to make a poster adv
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The answer is yes.

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7 0
2 years ago
We want to use this information to determine if there is an effect of friendship. In other words, is the mean price when buying
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Answer:

H0 : mu1 = mu2

Ha : mu1 ≠ mu2

Which means

Null hypothesis H0; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is the same/equal

Alternative hypothesis Ha; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is different (not equal)

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean(i.e it tries to prove that the old theory is true). While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

Therefore, for the case above;

H0 : mu1 = mu2

Ha : mu1 ≠ mu2

Which means

Null hypothesis H0; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is the same/equal

Alternative hypothesis Ha; the true mean price when buying from a friend mu1 and the true mean price when buying from a stranger mu2 is different (not equal)

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3 years ago
If all 3 correct will do the thing and 5star
anastassius [24]
“the thing”???? what that mean
8 0
2 years ago
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