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Dimas [21]
3 years ago
14

Simplify the rational expression below.

Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

A) (x-7)/(x+4)

Step-by-step explanation:

(x^2-10x+21)/(x^2+x-12)=[(x-3)(x-7)]/[(x+4)(x-3)]=(x-7)/(x+4)

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Can someone answer this Algebra question asap? thanks
Pavel [41]

Answer:

y = - 24

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 12 when x = - 3

k = \frac{y}{x} = \frac{12}{-3} = - 4

y = - 4x ← equation of variation

When x = 6, then

y = - 4 × 6 = - 24

7 0
2 years ago
I really need help with c,d and e
Zolol [24]

Answer:

Step-by-step explanation:

By using regression line calculator,

Equation of the line of best fit,

c). y = 0.74x + 0.03

Here, x = Number of pints

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y = 0.74(10) + 0.03

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y = 7.43 pounds

e). If per pound cost of the blueberries = $2.25

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x = \frac{2.22}{0.74}

x = $3.00 per pound

Therefore, cost of 10 pounds blueberries = 3 × 10

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How do u get the answer for 42x3/6
sasho [114]
42*3/6 is equal to 42*1/2, or 21.
8 0
3 years ago
The cost of a pair of pants was reduced from $50 to $40. By what percent did the cost of the pair of pants decrease? 2% 10% 20%
vova2212 [387]

Answer:

C. 20%

Step-by-step explanation:

50*2=100

40*2=80

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5 0
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allochka39001 [22]

Answer:

Step-by-step explanation:

Regular hexagon has six equal sides

Perimeter = 5 + 5 + 5 + 5 + 5 +5   or 6*5

                = 30 cm

3 0
2 years ago
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