All categories

3 years ago

Please help! find measure of CDE

Mathematics

1 answer:

Umnica [9.8K]3 years ago

5 0

Answer:

170

Step-by-step explanation:

A heptagon's internal angles add up to 900 degrees.

So:

(2x-13)+(3x-8)+(2x-3)+(2x-7)+(3x-1)+(2x+11)+(2x+9) = 900

16x - 12 = 900

16x = 912

x = 912/16

x = 57

So:

3x - 1 = 3 * 57 -1 = 170

You might be interested in

What is 16a +24b in distributive property

Damm [24]

Well, first... you want to factor out the GCF, (Greatest Common Factor), which will end up being 8.

Then, you divide both 16a and 24b by 8.

Simplify each term, and your answer will be:

8(2a+3b)

Hope this helps. If you have any further questions, feel free to email me at ([email protected])

8 0

3 years ago

The humerus is the bone in a person's upper arm.With this bone as a clue,an anthropologist can tell about how tall a person was.

Marianna [84]

Answer:

156.73 cm

Step-by-step explanation:

height of the person = (2.75 × humerus length)+71.48 cm

length of the found humerus = 31cm

∴ height of the person = (2.75 × 31)+71.48 cm

= 85.25 + 71.48 cm

=<u> 156.73 cm</u>

7 0

3 years ago

Nina shops at two different stores, Fran’s Foods and Diane’s Deli. She compares the prices in the two stores to determine which

Natalija [7]

Answer:

Blank A: The better buy is Fran's

Blank B: The better buy is Diane's

Blank C: The better buy is Fran's

Step-by-step explanation:

* Lets explain how to solve the problem

- The better buy is the cheapest price

# Blank A

∵ The Fran's foods price is $3.36 for 16 2/3 ounces

∴ The price of each ounce = 3.36 ÷ 16 2/3 = $0.2016

∵ The Diane's Deli price is $5.52 for 24 3/5 ounces

∴ The price of each ounce = 5.52 ÷ 24 3/5 = $0.2244

∵ The price per ounce in Fran’s Foods store less than Diane’s Deli

∴ The better buy is Fran's

# Blank B

∵ The Fran's foods price is $3.80 for 10 1/5 ounces

∴ The price of each ounce = 3.80 ÷ 10 1/5 = $0.3725

∵ The Diane's Deli price is $0.86 for 4 2/7 ounces

∴ The price of each ounce = 0.86 ÷ 4 2/7 = $0.2007

∵ The price per ounce in Diane’s Deli store less than Fran’s Foods

∴ The better buy is Diane's

# Blank C

∵ The Fran's foods price is $1.99 for 16 1/2 ounces

∴ The price of each ounce = 1.99 ÷ 16 1/2 = $0.1206

∵ The Diane's Deli price is $3.99 for 4 2/7 ounces

∴ The price of each ounce = 3.99 ÷ 24 3/4 = $0.1612

∴ The price per ounce in Fran’s Foods store less than Diane’s Deli

∴ The better buy is Fran's

3 0

3 years ago

Read 2 more answers

Let’s consider all possible rectangles with the same area of 30 square inches. Please note: the length of the sides are whole nu

Nesterboy [21]

Base of the rectangle = x
Height of the rectangle = y

Area = length x height
30 = x.y

y = 30/x

3 0

3 years ago

Find the slope of a line through points (5,-8) and (-2,0)

34kurt

-8/7
this is how: 0-(-8) over -2-5 which is 8 over -7! you always use the format y2-y1 over x2-x1 and you’ll get your answer :)

5 0

3 years ago

Read 2 more answers

Please help! find measure of CDE ​

Please help! find measure of CDE