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Lelechka [254]
3 years ago
8

If the breadth of a rectangle is 21cm find its length​

Mathematics
1 answer:
KatRina [158]3 years ago
7 0

Answer:

its length will be 78 I think

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Need help real fast please help really need it
Vladimir79 [104]

Answer:

burrito price=$8

Taco Price=$6

Step-by-step explanation:

x=burrito price

y=taco price

3x+4y=48

solve for y

y= −3 /4 x+12

plug in

6x+2y=60

6x+2( −3 /4 x+12)=60

6x+2( −3 /4 x+12)=60

x=8

now plug in for x

3x+4y=48

3(8)+4y=48

y=6

y=6

x=8

burrito price=$8

Taco Price=$6

8 0
3 years ago
Please answer : ) will give brainly go to last problem for it to make sense
Ede4ka [16]

Answer:

30%

Step-by-step explanation:

if 60% were thin mint and 10% were Samoas that is 70% of cookies. remaining 30% must be trefoils. hope this helps

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3 years ago
If you have 8 marbles (5 green and 3 blue), what is the probability of drawing a green, then 2 blues, and then a green without a
kifflom [539]
The answer of this question is B
4 0
3 years ago
1) (6x2 + 14 - x) + (2x - 2 - 4x2)
lakkis [162]
1 is 1
2 is going to be -8x to the second minus 6 x
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4 is 11
3 0
2 years ago
A 99% confidence interval for the difference between two proportions was estimated at 0.11, 0.39. Based on this, we can conclude
sladkih [1.3K]

Answer:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidenc einterval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

Step-by-step explanation:

Let p1 and p2 the population proportions of interest and let \hat p_1 and \hat p_2 the estimators for the proportions we know that the confidence interval for the difference of proportions is given by this formula:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidence interval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

4 0
3 years ago
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