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Olin [163]
2 years ago
12

Pleaseee answer this!!!!

Mathematics
1 answer:
MariettaO [177]2 years ago
3 0

Answer:

2162 cm²

Step-by-step explanation:

the area of shaded gray = the area of the big rectangle-the area of the small rectangle

= 42×63-22×22

=2646-484

=2162 cm²

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the sides of a triangle have lengths s,s+4,and 3s write an expression that represents the perimeter of the triangle
mamaluj [8]
Perimeter of a poligon= sum of all sides.
Perimeter of this triangle=s+(s+4)+3s=5s+4

An expression that represents the perimeter of this triangle is:  5s+4
3 0
3 years ago
Show that there is no solution for the radical equation 4w+4=-4.
Ad libitum [116K]

Answer:

there is a solution

w= -2

Step-by-step explanation:

4w+4=-4

    -4    -4

4w=-8

/4    /4

w=-2

3 0
3 years ago
SOMEONE PLEASE HELP ASAP!!!!!
Margaret [11]

Answer:

<em>x = 1</em>

<em>y = 1</em>

Step-by-step explanation:

<u>System of Equations</u>

We are given the system of equations:

2x + y = 3

x = 2y - 1

Substituting x in the first equation:

2(2y - 1) + y = 3

Operating:

4y - 2 + y = 3

5y = 3 + 2

y = 5/5 = 1

y = 1

Since:

x = 2y - 1

Then:

x = 2(1) - 1

x = 1

Solution:

x = 1

y = 1

7 0
3 years ago
A recipe requires 1/3 cup of oil for every 2/5 cup of water. How much oil (in cups) is needed per cup of water?
igor_vitrenko [27]
3/8 cups of oil

Step by step explanation:

Given : A recipe requires 1/4 cup of oil for every 2/3 cup of water.

To Find: How much oil (in cups) is needed per cup of water?

Solution:

Oil required by 2/3 cup of water = 1/4

Oil required by 1 cup of water = 1/4
= 2/3
= 3/8
Hence cups of oil is needed for per cup of water.
8 0
3 years ago
Find the area of a regular nonagon with a side length of 7 and an apothem of 5
vitfil [10]
A NONA=9, nonagon has 9 sides, so it's perimeter is 7+7+7+7+7+7+7+7+7, or 63, and we know the apothem.

bearing in mind that the area of a regular polygon is 
(1/2)ap   a = apothem, p = perimeter

so in this case that'd be (1/2)(5)(63).
7 0
3 years ago
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