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3 years ago

Kay's mother taught her how to make handmade ornaments to sell at a craft fair. Kay rented a table at

Mathematics

1 answer:

ziro4ka [17]3 years ago

4 0

Answer:

where is the question?

Step-by-step explanation:

i guess the question is incomplete

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Plz plz help urgently ❤️

Delicious77 [7]

Answer:

Step-by-step explanation:

5 0

2 years ago

What is the answer to this and how do I do this problem?

DaniilM [7]

Answer:

B) 25.1 units

Step-by-step explanation:

The perimeter is the sum of the lengths of the sides of the triangle. The length of the side BC that is vertical can be found by finding the difference of y-coordinates:

BC = 5 -(-2) = 7

The lengths of the other two sides can be found using the given distance formula. Fill in the coordinate values and do the arithmetic.

AB = √((4-(-4))^2 +(5-(-1))^2) = √(8^2 +6^2) = √(64+36)

AB = √100 = 10

AC = √((4-(-4))^2 +(-2-(-1))^2) = √(8^2 +(-1)^2) = √(64 +1)

AC = √65 ≈ 8.06

So, the perimeter is ...

P = AB +BC +AC

P = 10 + 7 + 8.06 = 25.06 ≈ 25.1 . . . . matches choice B

5 0

2 years ago

The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c)

Ilya [14]

Answer:

$\bar X =\frac{2.3+3.1+2.8+1.7+0.9+4+2.1+1.2+3.6+0.2+2.4+3.2}{12}=2.29$

$s=1.09$

Step-by-step explanation:

For this case we have the following data given:

2.3 3.1 2.8

1.7 0.9 4.0

2.1 1.2 3.6

0.2 2.4 3.2

Since the data are assumedn normally distributed we can find the standard deviation with the following formula:

$\sigma =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n}}$

And we need to find the mean first with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X =\frac{2.3+3.1+2.8+1.7+0.9+4+2.1+1.2+3.6+0.2+2.4+3.2}{12}=2.29$

And then we can calculate the deviation and we got:

$s=1.09$

7 0

2 years ago

Read 2 more answers

Find the height of the roof.

marusya05 [52]

I am confident that the answer is C. 53.7

6 0

2 years ago

Read 2 more answers

Dina and Masha started out on a 12 mi bike path at the same time. When Dina reached the end of the 12 mi, Masha still had 3 mi l

Anna35 [415]

Answer:

6 mph

Step-by-step explanation:

Use formula

$D=r\cdot t,$

where

D = distance

r = rate

t = time

In your case,

D = 12 mi

D = 12 mi

r = 8 mph

t = ?

So,

$12=8t\\ \\t=\dfrac{12}{8}=\dfrac{3}{2}=1.5\ hours$

<u>Masha:</u>

D = 12 - 3 = 8 mi

r = ?

t = 1.5 hours

Then

$9=1.5r\\ \\r=\dfrac{9}{1.5}=\dfrac{90}{15}=6\ mph$

6 0

2 years ago

Read 2 more answers