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3 years ago

A pet store has 7 cats. Here are their weights (in pounds).

Mathematics

2 answers:

-Dominant- [34]3 years ago

7 0

The mean weight of the cats are 12.7

Vedmedyk [2.9K]3 years ago

5 0

Answer:

Step-by-step explanation:

12+16+8+13+10+14+16=89/total number of cats

89/7=12.71 --> nearest tenth would be 12.7

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Yolanda is making a banner for a school pep rally. She cuts fabric in the shape of a parallelogram. The angle at the bottom left

Snowcat [4.5K]

Answer:

100°

Step-by-step explanation:

The bottom left and top left angle in a parallelogram are adjacent angles.

From the properties of parallelogram, we know adjacent angles are supplementary, this means they "add up to 180°"

<em>Thus, if one angle is 80, the other angles would be 100 (to make it total 180).</em>

<em />

So, top left corner angle measures 100°

6 0

3 years ago

I need an answer NOT A LINK!!!

Oksi-84 [34.3K]

Answer:

<h2>I think the answer is C</h2>

Step-by-step explanation:

oh and...you mean one of these.....sorry i just had to... XD XD

8 0

3 years ago

Give the dilation below, determine the scale factor and center.

kvasek [131]

Answer:

scale = ½

center = (2, -5)

Step-by-step explanation:

The distance between A and B is 8

The distance between A' and B is 4

therefore the dilation scale factor is 4/8 = ½

As B and B' have the same x value, the center must also have the same x value of 2

The y value for A is -1

The y value for A' is -3

IF the y value for the center is Y

½(Y - (-1)) = (Y -(-3))

½(Y + 1) = (Y + 3)

½Y + ½ = Y + 3

-2.5 = ½Y

Y = -5

5 0

3 years ago

In the expansion of (2m-3n)^9, one of the terms contains m^3. Determine the exponent of n in this term.

3241004551 [841]

Answer:

The correct option is 6

Step-by-step explanation:

Given expression,

$(2m-3n)^9$

By the binomial expansion,

$(a+b)^x = \sum _{r=0}^{x} ^xC_r a^{x-r} b^{r}$

Where,

$^xC_r=\frac{x!}{r!(x-r)!}$

Thus,

$(2m-3n)^9 = \sum _{r=0}^{9} ^9C_r (2m)^{9-r} (-3n)^{r}$

For finding the term containing $m^3$

9 - r = 3

⇒ 9 - 3 = r

⇒ r = 6

i.e. the required term is,

$^9C_6 (2m)^{3} (-3n)^{6}$

Hence, the power of n in that term = 6.

8 0

3 years ago

Deposited 3,000$ and it earned 300$ in simple interest after 5 years what’s the interest rate

Leviafan [203]

Answer:

<em>The interest rate is 2%</em>

Step-by-step explanation:

<u>Simple Interest</u>

Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.

The interest earned is calculated as follows:

I=P.r.t

Where:

I = Interest

P = initial principal balance

r = interest rate

t = time

The principal is P=$3,000 and it earned I=$300 in t=5 years. Thus the interest rate can be calculated by solving for r:

$\displaystyle r=\frac{I}{P.t}$

$\displaystyle r=\frac{300}{3,000*5}$

$\displaystyle r=\frac{300}{15,000}$

r = 0.02

The interest rate is 2%

6 0

3 years ago