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3 years ago

Use zero property to solve the equation. F(x)=3x(x+7)-2(x+7)

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

7 0

Answer:

x = -7 or x = 2/3

Step-by-step explanation:

I'm assuming you meant solve for x when f(x) = 0.

f(x) = 3x(x + 7) - 2(x + 7)

0 = (x + 7)(3x - 2) -- Both terms have a common factor of (x + 7) so we can group them

x + 7 = 0 or 3x - 2 = 0 -- Use ZPP

x = -7 or x = 2/3 -- Solve

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Suppose the man in the St. Ives poem has x wives, each wife has x sacks, each sack has x cats, and each cat has x kits. Write an

marishachu [46]

Answer: $x+x^2+x^3+x^4$

Step-by-step explanation:

As per given,

Number of wives = $x$

Number of sacks = $x (\text{Number of wives} )= x\times x = x^2$

Number of cats = $x(\text{Number of sack})$ $= x \times x^2=x^3$

Number of kits = $x(\text{Number of cats} )=x\times x^3=x^4$

Now , the total number of kits, cats, sacks, and wives going to St. Ives = $x+x^2+x^3+x^4$

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2 years ago

In the diagram below secants PT & PU have been drawn from exterior point P such that the four arcs intercepted have the foll

fiasKO [112]

Answer:

x = 30°
RS = 30°, SR = TU = 120°, UR = 90°
∠P = 45°
∠UTS = 60°

Step-by-step explanation:

(a) If RS = x, then the sum of arcs around the circle is ...

x + 4x +4x +3x = 360°

12x = 360°

x = 30°

(b) Based on the given ratios, the arc measures are computed from x. For example, ST = TU = 4x = 4(30°) = 120°

RS = 30°
ST = 120°
TU = 120°
UR = 90°

(c) Angle P is half the difference of arcs TU and RS:

∠P = (TU -RS)/2 = (120° -30°)/2

∠P = 45°

(d) Inscribed angle UTS is half the measure of the arc it intercepts. Arc RU has the measure (30° +90°) = 120°, so the measure of UTS is ...

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3 years ago

X= 0 Find the slope of a line parallel and perpendicular

Llana [10]

Answer:

Step-by-step explanation:

x=o . so the line is parallel to x-axis.

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As the perpendicular line will be parallel to y-axis. so the slope of the line parallel to y-axis is undefined.

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2 years ago

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taurus [48]

To find the mean you must add up all the numbers and divide by how many there are:
35 + 60 + x
_________ = 70
3

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He must score at least a 65 for a 70 average.

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3 years ago

Read 2 more answers

The square root of 150 is between A.10 and 11 B.11 and 12 C.12 and 13 D.13 and 14

MrRissso [65]

The square of 12 is 144 and the square of 13 is 169. Since 150 is in between those, it is C.

Hope this helps!

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2 years ago