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Marta_Voda [28]
3 years ago
7

justin purchased dog food for his cocker spaniel. he bought 9 cans at a price of 3 cans for $1.28. how much did justin pay.

Mathematics
2 answers:
bogdanovich [222]3 years ago
6 0

Answer:$3.84

Step-by-step explanation:

If 3 cans are $1.28, and Justin bought 9 cans of dog food, you need to multiply $1.28 by 3, since 9 cans is 3 cans times 3 orders.

wariber [46]3 years ago
3 0

Answer:

$3.84 for 9 cans

Step-by-step explanation:

Since the unit price is 3 for $1.28, all we need to do is multiply.

1.28 * 3 = $3.84

Best of Luck!

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Select all the angles of rotation that produce symmetry for this flower.
Sedaia [141]

Answer:

Angles of rotation that produce symmetry are the angles that we can rotate the image, and the end result will be the starting image. (the angles are always measured from the x-axis)

Here we can clearly see that in each quadrant we have a petal of the flower.

Then the angles that change one quadrant into other quadrant will produce symmetry.

Those angles are:

90°, 180°, 270°, 360°, etc.

We can define the set of those angles as:

A {n*90° I n ∈ Z}

3 0
3 years ago
The ratio of the measures of the angles in a triangle is 2:6:8 find the measures of the largest angle
aalyn [17]

Answer:

90°

Step-by-step explanation:

sum the parts of the ratio 2 + 6 + 8 = 16

The sum of the 3 angles in a triangle = 180°

divide 180 by 16 to find the value of one part of the ratio.

\frac{180}{16} = 11.25° ← 1 part of the ratio

8 parts = 8 × 11.25° = 90°

The largest angle in the triangle is 90°


4 0
4 years ago
b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and
rjkz [21]

Answer:

<em>99% of confidence intervals for mean age of ICU patients</em>

<em>(53.8920 , 61.2079)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<em>Given sample mean </em>x^{-} = 57.55<em></em>

Given standard error is determined by

                                                             S.E =\frac{S.D}{\sqrt{n} }

<em>Given data standard error = 1.42</em>

<em>99% of confidence intervals for mean is determined by</em>

(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )

Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576

(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)

(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)

(53.8920 , 61.2079)

<u><em>Conclusion</em></u>:-

<em>99% of confidence intervals for mean is determined by</em>

<em>(53.8920 , 61.2079)</em>

5 0
3 years ago
The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and
eimsori [14]

Answer:

1212

Step-by-step explanation:

121212212

8 0
3 years ago
Choose the point slope form of the equation below that represents the line that’s passes through thane point (-1, 6) and has a s
Serhud [2]
Equation is
y-6= -3(x+1)
or, 3x-y-3=0
5 0
4 years ago
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