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Monica [59]
2 years ago
10

What is the function fory = -2x + 9 X-4 -4 - 2 0 2 4 . 4 y|17 _ _ _ _​

Mathematics
1 answer:
Alenkasestr [34]2 years ago
4 0

Answer:

When, X=-4

y=17

X= - 3 with y =15

X= - 2 with y =13

X= - 1 with y =11

X=0 with y=9

X=1 with y=7

X=2 with y=5

X=3 with y=3

X=4 with y=1

As co-ordinate it'll be:

(-4,17)

(-3,15)

(-2,13)

(-1,11)

(0,9)

(1, 7)

(2,5)

(3,3)

(4,1)

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The height of a triangle is 7 ft more than its base. if the area of the triangle is 30 ft^ what is the lentgh of the base
Dmitriy789 [7]
Since the area of a triangle is in the form
area=0.5(base)(height)
height=base+7
let base=x
area=0.5(x)(7+x)
30=3.5x+0.5x^2
multiply the equation by 2
60=7x+x^2
subtract 60 from both sides
x^2+7x-60=0
(x-5)(x+12)=0
thus  x=5 or x=-12 since we are only considering positive answers
x=-12 is rejected
so base=5 and height=5+7=12
6 0
3 years ago
Given the formula A = P(1 + )". compute A (rounded to two decimal places) if P = 10,000,7
Flura [38]

Answer:

A = 16010.32

Step-by-step explanation:

Given that,

A=P(1+\dfrac{r}{k})^n

Put P = 10,000, r = 0.08, k = 2 and n = 12 in the above formula to find A.

A=10,000(1+\dfrac{0.08}{2})^{12}\\\\=10,000\times (1.04)^{12}\\\\=16,010.32

So, the value of A is 16010.32. Hence, the correct option is (B).

4 0
3 years ago
A fluid moves through a tube of length 1 meter and radius r=0.006±0.00025 meters under a pressure p=4⋅105±2000 pascals, at a rat
iris [78.8K]

Answer:

Maximum error for viscosity is 17.14%

Step-by-step explanation:

We know that everything is changing with respect to the time, "r" is changing with respect to the time, and also "p" just "v" will not change with the time according to the information given, so we can find the implicit derivative with respect to the time, and since

n = (\frac{\pi}{8}) (\frac{pr^4}{v})\\

The implicit derivative with respect to the time would be

\frac{dn}{dt}  = \frac{\pi}{8} ( \frac{r^4}{v} \frac{dp}{dt}  + \frac{4pr^3}{v}\frac{dr}{dt} )

If we multiply everything by    dt   we get  

dn  = \frac{\pi}{8} ( \frac{r^4}{v} dp  + \frac{4pr^3}{v}  dr})

Remember that  the error is given by   \frac{dn}{n}   therefore doing some algebra we get that

\frac{dn}{n}  =    4 \frac{dr}{r}  +  \frac{dp}{p}

Since,    r = 0.006   ,   dr = 0.00025 ,  p = 4*105   ,   dp = 2000  we get that

\frac{dn}{n} = 0.1714

Which means that  the maximum error for viscosity is 17.14%.  

5 0
3 years ago
What value of x is the solution to the equation:<br> 3x – 7<br> = x +1<br> 5
Bumek [7]

Answer:

x = 11

Step-by-step explanation:

3x - 7 = x + 15 ( subtract x from both sides )

2x - 7 = 15 ( add 7 to both sides )

2x = 22 ( divide both sides by 2 )

x = 11

3 0
2 years ago
Read 2 more answers
Which place value contains the 7 in the quotient of 8,928 divided by 24?
Ainat [17]

Answer: 7 is in tens place

Step-by-step explanation: 8928 ÷ 24 = 372

Ones place - 2

Tens place - 7

Hundreds place - 3

The 7 is in the tens place

5 0
2 years ago
Read 2 more answers
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