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VARVARA [1.3K]
3 years ago
5

Please help asap.I don't understand ​

Mathematics
1 answer:
matrenka [14]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Given the zero x = a of f(x) then f(a) = 0

(5)

f(9) =9³ - 8(9)² - 2(9) - 63 = 729 - 648 - 18 - 63 = 0

Hence x = 9 is a zero of the polynomial

(6)

2(-3)^{4} - 3(- 3)³ - 36(- 3)² - 37(- 3) - 26 = 162 + 81 - 324 + 111 - 26 = 4 ≠ 0

Hence x = - 3 is not a zero of the polynomial

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I need help with this.
Sloan [31]

9514 1404 393

Answer:

  61.4

Step-by-step explanation:

The length of two semicircles of diameter 10 is the circumference of a circle of that diameter:

  C = πd = 10π ≈ 31.4

The perimeter includes that length plus the lengths of two straight sides that are 15 units each.

  P = 31.4 + 2×15

  P = 61.4 . . . . units

4 0
3 years ago
Which is the equation of a line that is parallel to 2x + 5y = 4 and goes through the point (5, –4) ?
barxatty [35]

we know that

if two lines are parallel

then

their slopes are equal

Step 1

Find the slope of the line 2x + 5y = 4

2x + 5y = 4------> 5y=4-2x-----> y=(4/5)-(2/5)x------> slope m=(-2/5)

step 2

with m=-2/5 and the point (5, –4) find the equation of the line

y-y1=m*(x-x1)------> y+4=(-2/5)*(x-5)----> y=(-2/5)x+2-4

y=(-2/5)x-2

therefore

the answer is the option D

4 0
3 years ago
Read 2 more answers
Cual es el peso de un niño si su masa es de 21kg? Por fa estoy en examen
ZanzabumX [31]

Answer:

Step-by-step explanation:

) Big companies own most of the assets

(b) Government owns the assets

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(d) An individual owns most of the assets

4 0
3 years ago
1. The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. Estimate
UNO [17]

Answer:

D. 2*10^{27} kg

Step-by-step explanation:

Mass of Jupiter is given as 1,898,000,000,000,000,000,000,000,000 kg

Estimating this to the nearest whole number would be = 2,000,000,000,000,000,000,000,000,000 kg (rounding up the the "1,898")

To express this in scientific notation form, simply count how many zeros we have to the nearest whole number, 2.

We have 27 zeros there.

Therefore, we would multiply the whole number, 2, by 10 raise to the power of 27.

An estimate of the mass of Jupiter = 2*10^{27} kg

6 0
3 years ago
If you drive 130 miles and it takes you Two hours and six minutes and then you drive back on the same route but it takes you two
Vilka [71]
You can gain it by taking an hr and thirty min trip and on the way back takes hr and forty five min. That is how you gain your precious time back!!!✍️☃️⚽️
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