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olchik [2.2K]
3 years ago
6

Need help take your time and thx

Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

Maybe...

Not much sure..

If it is factorisation then it's correct...

Step-by-step explanation:

x×x-2×7×X+5×9

X(x-14+45)

X(x-31) Answer...

hope it helps

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Four pencils are held together with a band.
Keith_Richards [23]

Answer:20πmm

Step-by-step explanation:

each pencil diameter=10mm

each pencil diameter=radius Of The band

Radius of band=10mm

Circumference of band=2 x π x radius

Circumference of band=2xπx10

Circumference of band=20π

The length of band is the circumference Of The band

There length of band is 20πmm

4 0
3 years ago
What is the solution to the system of equations using the linear combination method {4x+y=5, 3x+y=8?
erastovalidia [21]
4x + y = 5
3x + y = 8
y = -3x + 8

4x +(-3x + 8) = 5
4x -3x + 8 = 5
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y = -1
5 0
3 years ago
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Given f(x) = 3x^2 + 2x – 1 and g(x) = 4x-5 find ( g of f) (-2)
pishuonlain [190]

Answer:

23

Step-by-step explanation:

Evaluate f(- 2) then substitute the value obtained into g(x)

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7 0
2 years ago
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1)A student earned a grade of 80% on a math test that had 60 problems. How many
FrozenT [24]

Answer:

48

Step-by-step explanation:

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3. Jack buys a bicycle on sale for $59.
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