3 years ago

A gardener uses 1\3 of liter of water to water 2\7 of the garden

Mathematics

1 answer:

andrew11 [14]3 years ago

4 0

The answer is 13 because you add.

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A 15% tip on a restaurant bill is $3.60. How much is the bill?

ale4655 [162]

Answer:

$3.60.

Step-by-step explanation:

If you want to tip 15%, then the total tip amount would be $2.40 plus half of that again ($1.20), which is $3.60.

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3 years ago

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Liz wants to estimate the percentage of people who rent their home. She surveys 320 individuals and finds that 176 rent their ho

SOVA2 [1]

Answer: 0.065

Step-by-step explanation:

Given : Sample size : n= 320

The sample proportion of people who rent their home : $p=\dfrac{176}{320}=0.55$

Significance level : $\alpha:1-0.98=0.02$

Then , Critical value : $z_{\alpha/2}=2.33$

The formula to find the margin of error : -

$E=z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\\Rightarrow\ E=(2.33)\sqrt{\dfrac{0.55(1-0.55)}{320}}\\\\\Rightarrow\ E=0.064799034281\approx0.065$

Hence, the margin of error for the confidence interval for the population proportion with a 98% confidence level =0.065

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3 years ago

(Easy) For the following quadratic function, find the axis of symmetry, the vertex and the y-intercept. y = x^2 + 12x + 32

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Answer:

$y ( \times + 6) 2 - 4$

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2 years ago

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Brainiest to whoever right thanks

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72 degrees

Step-by-step explanation:

Since the trees are parallel, so are the angles.

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Find the value of X and QR If M is the midpoint of QR. QM=3x+2 and MR=5x-8

Y_Kistochka [10]

The value of X is 5 and QR is 34

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