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eduard
3 years ago
10

Help please! Djdhdhdjdjdjdjdjdjd

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0
The answer is D. If you take the number he had yesterday and divide it by 3 and subtract 1 you will get what he had today.
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Randy wants to run half a marathon. Half a marathon is 13.1 miles. if she wants to run the race in 2 hours what rate(in minutes
IRINA_888 [86]

Answer:

9.16 minutes per mile

At 10 miles, she is short of her intended rate

Step-by-step explanation:

2 hours means 60 * 2 = 120 minutes

Randy aims to run 13.1 miles in 120 minutes. So to get the rate [min/mi], we must divide total minutes by total miles:

120/13.1 = 9.16 minutes per mile

Moreover, she realized at 10 miles, she has taken 90 minutes. So her rate at that point [min/mi] is:

90/10 = 9 min/mi

Well, Randy is short of her intended rate

3 0
3 years ago
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A topic or recent clinical interest is the possibility of using drugs to reduce infarct size is patients who have myocardial inf
Elanso [62]

Yes, there is statistical evidence that the drug is effective in reducing infarct size because p-value is less than the significance value.

<h3>How to find hypothetical Evidence?</h3>

Let us first define the hypotheses;

Null Hypothesis; H₀: µ = 25

Alternative Hypothesis; H₁: µ < 25

Standard Deviation; σ = 10

Sample mean; x' = 16

Sample size; n = 8

z-score is;

z = (16 - 25)/(10/√8)

z = -2.55

From online z-score table, the p-value is 0.005

Since p-value is less than the significance value, then we reject the null hypothesis and conclude that the drug is effective in reducing infarct size.

Read more about Hypothetical Evidence at; brainly.com/question/875167

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5 0
3 years ago
What is the value of m in the question 3/4 m =9???
7nadin3 [17]
The answer or m is 12
6 0
3 years ago
Can a frequency table have intervals of 0-5, 5-10,and 10-15
Black_prince [1.1K]
Yes, they can have those intervals. 
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3 years ago
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I need help with geometry/ algebra
Advocard [28]

Step-by-step explanation:

answer is attached as image

6 0
4 years ago
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