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viva [34]
3 years ago
15

What addition doubles fact will help solve 4+3

Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0
Because 4 + 4 = 8 and you know that 3 is one less than one you could do 8-1= 7 so 4 + 3 = 7
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4 0
3 years ago
Can you brake this down 455÷7​
Hatshy [7]
Its very easy
455 means 5*7*13

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5 0
3 years ago
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A sample survey interviews SRSs of 500 female college students and 550 male college students. Researchers want to determine whet
stira [4]

Answer:

Option (d) and (e)

Step-by-step explanation:

We are given that a sample survey interviews SRS of 500 female college students and 550 male college students. And Researchers want to determine whether there is a difference in the proportion of male and female college students who worked for pay last summer.

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From this, Null Hypothesis, H_0 : p_1 = p_2 {means proportion of male and female college students who worked for pay last summer are same}

Alternate Hypothesis, H_1 : p_1\neq p_2 {means there is a difference in the proportion of male and female college students who worked for pay last summer}

Now, since we know that results were statistically significant at the 1% level.

So, if p-value is less than the significance level ⇒ we will reject H_0

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From the options given it is sure that P-value is less than 1%,i.e.;

<em>P-value is less than the significance level, so we will reject null hypothesis and conclude that there is convincing evidence that the proportion of all male college students in the study who worked for pay last summer is different from the proportion of all female college students in the study who worked for pay last summer. </em>

Also, option (d) and (e) are same in my opinion.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

Hi!

The options regarding the inequalities are not listed, though we can still proceed to write the inequality.

From the problem statement you cannot spend more than $50

and you are charged admission fee of $6 flat

a ride cost $2.50 per ride

the number of rides is given as r

yet in all you must not go beyond your limit

Therefore the inequalities can be presented as

6+2.5r\leq 50

4 0
3 years ago
Read 2 more answers
What is the slope of a line that goes through the points 1,-5 and -3,2? I'm helping my niece
a_sh-v [17]
M = (y2 - y1)/(x2-x1)
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4 0
3 years ago
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