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sweet-ann [11.9K]
3 years ago
11

Help Needed

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0
The zeros of this function is -4 and -8
viktelen [127]3 years ago
3 0

Answer:

Step-by-step explanation:

The given equation is:

f(x)=x^2+12x+32

Simplifying the above expression, we have

f(x)=x^2+4x+8x+32

f(x)=x(x+4)+8(x+4)

f(x)=(x+4)(x+8)

Thus, zeroes of the given function will be:

f(x)=0

(x+4)(x+8)=0

x=-4 and x=-8

Therefore the zeroes of the given function are x=-4 and x=-8.

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What is the slope of the line by the equations below? y-9=15 (x-5)
ipn [44]

To find the slope, you should rearrange the equation into slope-intercept form, ie. y = mx + c, where m is the gradient.

y - 9 = 15(x - 5)

y = 15(x - 5) + 9 (Add 9 to each side)

y = 15x - 15*5 + 9 (Expand 15(x - 5))

y = 15x - 75 + 9

y = 15x - 66

Therefor, the slope of the equation is 15.

7 0
3 years ago
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A machine stamps 360 metal parts in 45 minutes. Find the unit rate in parts per hour.
MakcuM [25]

Answer:

50 to 15 min 30 sec

15 min 30 sec is actually 930 seconds

3600 sec in hour

-- not finished, working on it

Step-by-step explanation:

4 0
3 years ago
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A shop has the following offers. Fig rolls (125g packet) Normal price £1.08. Buy one, get 2nd half price
GaryK [48]

Step-by-step explanation:

Fig rolls = 1.08

Half price = 1.08 ÷ 2 = 0.54

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5 0
3 years ago
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What is the decimal multiplier to decrease 3.8%
lapo4ka [179]

Answer:

0.038

Step-by-step explanation:

4 0
3 years ago
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3. Let sin 21 = 0.358. What is the value of x for cos x=0.358?
r-ruslan [8.4K]

Answer:

\cos(69)

Step-by-step explanation:

We will use the co-function identity for sine, where:

\sin(x)=\cos(90-x)

Since sin(21)=0.358=cos(x). This means that:

21=90-x

Solve for x. Add x to both sides:

x+21=90

Subtract 21 from both sides:

x=69\textdegree

Hence:

\sin(21)=\cos(69)\approx0.358

6 0
3 years ago
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