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aivan3 [116]
3 years ago
6

Anyone please !!!!!!

Mathematics
1 answer:
IgorLugansk [536]3 years ago
5 0

Answer:

4

Step-by-step explanation:

Lets start by plugging in our (a) value

a^2 + 5a + 4

(-5)^2 + 5(-5) +4

25 - 25 + 4

0 + 4

4 is your final answer!

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James has a bicycle. Each wheel has diameter 45cm. James cycles his bicycle in a straight line in the playground. The front whee
Korvikt [17]

Answer: 21.21 meters

Step-by-step explanation:

Hi, to answer this, first we have to calculate the circumference (C) of the wheel:

C = π x diameter

Replacing with the values given:

C = π x 45 = 141.37 cm

Then we multiply it by the number of revolutions:

141.37 x 15 = 2,120.6 cm

Since  

1 cm = 0.01 m

2,120.6 x 0.01 = 21.21 meters

Feel free to ask for more if needed or if you did not understand something.

5 0
3 years ago
Evelyn says that the equation 3(x - 3) + 5 = 3x + 1 + 4
Alex787 [66]

Step 1: Simplify both sides of the equation.

3(x−3)+5=3x+1+4

(3)(x)+(3)(−3)+5=3x+1+4(Distribute)

3x+−9+5=3x+1+4

(3x)+(−9+5)=(3x)+(1+4)(Combine Like Terms)

3x+−4=3x+5

3x−4=3x+5

Step 2: Subtract 3x from both sides.

3x−4−3x=3x+5−3x

−4=5

Step 3: Add 4 to both sides.

−4+4=5+4

0=9

8 0
3 years ago
Trapezoid RSTU with vertices R(-5, 15), S(0, 10), T(-5, 5) and U(-15, 5): scale factor = 1/5, centered at the origin
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Answer:

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Step-by-step explanation:

3 0
2 years ago
3x + 5= -1 <br> Ayuda xddddd
bija089 [108]

Answer: x = -2

Step-by-step explanation:

8 0
3 years ago
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102.8 divided by 4 And how u got it :)
eimsori [14]

Answer:

102.8/4=25.7

I got it because I used a calculator

Step-by-step explanation:

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