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Gennadij [26K]
3 years ago
8

Help please really need help

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer:

4) C since its 90 degrees

5) A since B is 90, C is 180, and D is 10(around)

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15.<br> Find the perimeter of the smaller figure given that the two figures are similar.
Maksim231197 [3]
Let: s1 = one of the sides of the larger figure
: s2 = one of the sides of the smaller figure
: p1 = perimeter of the larger figure
: p2 = perimeter of the smaller figure
s1/s2 = p1/p2. The ratio of the corresponding sides is the same as the perimeter of the figures.
p1 = 30 + 30 + 35 + 5 + 10 = 110

s1 = 30 and s2 = 18
p1 = 110 and p2 is ?

s1/s2 = p1/p2
30/18 = 110/?
Crisscross ==== 30*? = 18*110

30*? = 1980
Divide both side by 30 ==== 30*?/30 = 1980/30
? = 66
5 0
3 years ago
The explicit formula for a sequence is
Alexandra [31]

Answer:

28

Step-by-step explanation:

Let n = 21, and evaluate the expression.

a_n = -2 + \dfrac{3}{2}(n - 1)

a_{21} = -2 + \dfrac{3}{2}(21 - 1)

a_{21} = -2 + \dfrac{3}{2}(20)

a_{21} = -2 + \dfrac{3}{1}(10)

a_{21} = -2 + 30

a_{21} = 28

3 0
3 years ago
Write this ratio as a fraction in the simplest form 3 feet to 63 inches
Andrei [34K]

Answer:

4:7

Step-by-step explanation:

Okay, so first convert the feet to inches so 3x12=36. So the it's 36:63. Then if you simplify it you get 4:7.

3 0
3 years ago
Jeanine is twice as old as her brother Marc. If<br> the sum of their ages is 24, how old is Jeanine?
Vesnalui [34]
Write equations for the given information to solve (using J for Jeanine and M for Marc):
J=2M
J+M= 24
Now substitute 2M in for J in the second equation:
2M+M=24, 3M=24, M=8
Remember that J=2M, so if M=8, J=16.
So Jeanine is 16 and Marc is 8
3 0
4 years ago
Find the missing side of the triangle
lara [203]

Answer:

3 (equalateral)

Step-by-step explanation:

7 0
3 years ago
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