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vova2212 [387]
2 years ago
5

Enter your answer and show all the steps that you use to solve this problem and write your final answer in a factored form in th

e space provided.
Simplify:
(9x^3 + 2x^2 − 5x + 4) − (5x^3 − 7x + 4)
Mathematics
1 answer:
julsineya [31]2 years ago
5 0

Step-by-step explanation:

f (x) - g (x) = 9 x³ + 2 x² - 5 x + 4 - ( 5 x³ - 7 x + 4 ) =

9 x³ + 2 x² - 5 x + 4 - 5 x³ + 7 x - 4 =

9 x³ - 5 x³ + 2 x² - 5 x + 7 x + 4 - 4 =

4 x³ + 2 x² + 2 x =

2 x ∙ ( 2 x² + x + 1 )

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What are the vertices of AA'B'C'if AABC is dilated by a scale factor of 3?
Juli2301 [7.4K]

Answer:

B

Step-by-step explanation: dilated means get bigger so (0,10) times 3 is (0,30) and (8,6) times 3 is (24,18) and (4,2) times 3 is (12,6)

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3 years ago
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Dimensions of a building are 728 feet by 800 feet. If 1 inch represents 8 feet, what are the dimensions of the building on the d
Doss [256]

Answer:

91in by 100in

Step-by-step explanation:

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3 years ago
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Amira wrote the inequality p + 5 = 18. Which situation is best represented by this inequality?
Andreas93 [3]

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6 0
3 years ago
An athletic field is a 60 yd60 yd​-by-120 yd120 yd ​rectangle, with a semicircle at each of the short sides. A running track 101
gregori [183]

Distance of each track are:

D₁ = 428.5 yd

D₂ = 436.35 yd

D₃ = 444.20 yd

D₄ = 452.05 yd

D₅ = 459.91 yd

D₆ = 467.76 yd

D₇ = 475.61 yd

D₈ = 483.47 yd

<u>Explanation:</u>

Given:

Track is divided into 8 lanes.

The length around each track is the two lengths of the rectangle plus the two lengths of the semi-circle with varying diameters.

Thus,

D = 2(120) + 2. \frac{1}{2} \pi d\\\\D = 240 + \pi d

Starting from the innermost edge with a diameter of 60yd.

Each lane is 10/8 = 1.25yd

So, the diameter increases by 2(1.25) = 2.5 yd each lane going outward.

So, the distances are:

D₁ = 240 + π (60) → 428.5yd

D₂ = 240 + π(60 + 2.5) → 436.35 yd

D₃ = 240 + π(60 + 5) → 444.20 yd

D₄ = 240 + π(60 + 7.5) → 452.05 yd

D₅ = 240 + π(60 + 10) → 459.91 yd

D₆ = 24 + π(60 + 12.5) → 467.76 yd

D₇ = 240 + π(60 + 15) → 475.61 yd

D₈ = 240 + π(60 + 17.5) → 483.47 yd

4 0
4 years ago
10 less than half a number is 27
tiny-mole [99]
The number is "X"
27+10 equals half "X"
that 37 this is half of "X"
37×2=74! "X"=74
8 0
4 years ago
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