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alexira [117]
3 years ago
13

Can a triangle be formed with the side lengths of 8cm 4cm and 12cm?

Mathematics
2 answers:
AVprozaik [17]3 years ago
5 0

use a^2+b^2=c^2

8^2+4^2 12^2

64+8       144

=72

72<144

so no

exis [7]3 years ago
3 0
I'd suggest posting this in math next time! But, No. The sum of the measures shorter legnths of the sides must be greater than the measure of the greatest angle. 
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At the end of the summer, a store marks down all the outdoor furniture 20%. A family bought 4 chairs that originally cost $102.
crimeas [40]

Answer:

$81.60

Step-by-step explanation:

A 20% markdown means that the chairs were sold at 80% of the original cost.

Original cost = $102

markdown = 20%

Cost after markdown = original cost* (1-markdown)

Cost after markdown = 102 *(1 - 0.20)

= 102*0.80

= 81.6

Therefore, the 4 chairs were sold at a total cost of $81.60

5 0
3 years ago
Which of the following is a correct interpretation of the expression -3 - 5−3−5minus, 3, minus, 5?
mariarad [96]

Answer:

-24

Step-by-step explanation:

7 0
3 years ago
3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
tatyana61 [14]
Ok so from experience on this site
3x2=3x^2
people don't know how to put exponents
3x^2-y^3-y^3-z
simplify first

3x^2-2y^3-z

x=3
y=-2
z=-5
3(3^2)-2(-2)^3-(-5)
3(9)-2(-8)+5
27+16+5
48
8 0
4 years ago
I don't know what to do.
Scorpion4ik [409]

Answer:

13 Compute using the 2 right angles, we know that m<FIG=90* and

3 0
3 years ago
#3 i
klasskru [66]

Answer:

77.74 square feet

Step-by-step explanation:

1. We have to keep the triangle and the rectangle apart and find the area of each separately then add the areas together.

The formula for the area of a rectangle is height x width = area

So, 6.5 feet x 10.4 feet = 67.6 feet squared

The formula for the area of a triangle is height x width x (1/2) = area

So, 5.2 feet x 3.9 feet x (1/2) = 10.14 feet squared

Now, add the two areas together.

10.14 square feet + 67.6 square feet = 77.74 square feet

3 0
3 years ago
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