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Jet001 [13]
3 years ago
11

Dave has 15$ to spend on a book for 8$ and two birthday cards (c) for his friends. How much can he spend on each card if he buys

the same card for each friend
Mathematics
2 answers:
masha68 [24]3 years ago
4 0
Three dollars and fifty cents for each card.
NNADVOKAT [17]3 years ago
4 0
$3.50


$8+$3.50+$3.50=$15
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What point(s) are 100units away from point -1? Can you pls respond quickly!
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Answer:

Look below.

Step-by-step explanation:

FYI: Im a bit confused on what this question is asking but I am responding based on what I believe the question is asking.

The point 100 spaces to the left of -1 would be (-101,0) and the point 100 spaces to the left of -1 would be (100,0).

The point(s) 100 spaces to the left of -1 would be (- infinity, -1) and the point(s) 100 spaces to the right would be (-1, infinity).

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2 years ago
100 POINTSbrainlest to the person who get it right
Zina [86]

Answer:

[1] x² - 4/2x - 4

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[2] 4 - 3x/2x + 4

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[3] x²/2x² - 2

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[4] x² + 5/5 - x

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[5] - x³/x² - 4

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  • 1/3

[6] x + 3/x³ - 1

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[7] 5 - x²/3x²

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[8] - 2x + 6/2x³ - 3

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8 0
2 years ago
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What factor makes the number sentence true 7 x 4 equals blank x 7
ozzi
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6 0
2 years ago
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HELP , TIMES ALMOST UP!!!!!!
solong [7]

Answer:

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Step-by-step explanation:

6 0
2 years ago
Find the critical value of x2 based on the given information H1 >3.5 n=14 a=0.05
egoroff_w [7]

Answer:

The degrees of freedom are given by:

df = n-1=14-1=13

The significance level is \alpha=0.05 and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:

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And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

Step-by-step explanation:

We have the followign system of hypothesis:

Null hypothesis: \sigma^2 \leq 3.5

Alternative hypothesis: \sigma^2 >3.5

The degrees of freedom are given by:

df = n-1=14-1=13

The significance level is \alpha=0.05 and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:

\chi^2_{\alpha}= 22.362

And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

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3 years ago
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