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STatiana [176]
3 years ago
6

Can someone please help me

Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0
I can’t help with this sorry out of my move set
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The perimeter of a
Umnica [9.8K]

Answer:

The longest side is 16 cm

Step-by-step explanation:

x + (x + 2) + (x + 4) = 42cm \\ x + x + 2 + x + 4 = 42cm \\ 3x + 6 = 42cm \\ 3x = 36cm \\ x = 12

check and finish

12 + (12 + 2) + (12 + 4) = 42cm \\ 12 + 12 + 12 + 6 = 42 cm\\ 36 + 6 = 42cm \\ 42cm = 42cm

lengths of sides

12 + 4 = 16cm \\ 12 + 2 = 14cm \\ 12cm

7 0
2 years ago
Find the exact value of sin(20) using the double-angle formula given: sin(0) = -4/5 , π<0<3π/2
viktelen [127]

Answer:

I think its A

Step-by-step explanation:

Sin(20) = 0.91294525072 which in a fraction it would be 24/25

5 0
3 years ago
3-74. Mentally calculate the following products. Use the rule for decimal multiplication to write an equation in
dalvyx [7]
B. -.0006

C. .28

Multiply 3 and 2 and you would get 6 then move the decimal 4 places to the left and you would get .0006


Multiply 7 and 4 and you would get 28 then move the decimal places 2 spaces to the left and you would get .28
8 0
3 years ago
Converting Units Attachment Included
kumpel [21]
100÷11=9.09090909
converting it it will be 9.1 miles per hour
4 0
3 years ago
Which expression can be used to find the volume
butalik [34]

Well the volume of the cylinder will be equal area of base time height

V = pi(4)^2 *(12)

The formula for the volume of a sphere is V = 4/3 πr³.

7 0
3 years ago
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