MATHEMATICS HIGH SCHOOL

If you can answer this question please do it as soon as you can.

Answers

Answer 1

Answer:

9514 1404 393

Answer:

6.045×10^40 ergs
1.8×10^-2 mm

Step-by-step explanation:

A) Your scientific or graphing calculator can tell you the product:

(3.9×10^33 erg/s)(1.55×10^7 s) = 6.045×10^40 ergs

B) 10^2 mm is 100 mm, about 4 inches, so 1.8×10^2 mm is about 7 inches. This is somewhat larger than the diameter of a human hair (and about the same size as the diameter of a human head).

1.8×10^-2 mm = 18 μm is a more reasonable estimate of hair diameter

(The range of hair diameters is reportedly about 17 to 181 μm, so the given dimension is on the low end.)

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What multiplies to -900 and adds to 5?

Answers

xy = -900
x + y = 5

x + y = 5
x - x + y = -x + 5
y = -x + 5

xy = -900
x(-x + 5) = -900
  x(-x) + x(5) = -900
-x² + 5x = -900
-x² + 5x + 900 = 0
-1(x²) - 1(-5x) - 1(-900) = 0
  -1(x² - 5x - 900) = 0
-1 -1
x² - 5x - 900 = 0
x = -(-5) ± √((-5)² - 4(1)(-900))
  2(1)
x = 5 ± √(25 + 3600)
2
x = 5 ± √(3625)
2
x = 5 ± 5√(145)
2
x = 2.5 ± 2.5√(145)

  x + y = 5
2.5 ± 2.5 √(145) + y = 5
- (2.5 ± 2.5√(145) - (2.5 ± 2.5√(145)
y = 2.5 ± 2.5√(145)
  (x, y) = (2.5 ± 2.5√(145), 2.5 ± 2.5√(145))

The two numbers that add up to 5 and multiply to -900 are 2.5 ± 2.5√(145).

"Yonder sky has wept tears of compassion" is an example of A. assonance.
B. alliteration.
C. consonance.
D. personification.

Answers

The correct answer is D. Personification.

That is because the sky cannot really weep tears. It is given the human ability of crying so as to present the rain falling as something more poetic.

Answer:

D. personification *just took the penn foster test*

Solve the system of equations.2x + 3y = 13
–6x + 4y = 0
A.
(2, 3)
B.

C.
(5, 1)
D.
(–2, –3)

Answers

2x + 3y = 13

–6x + 4y = 0

multiply the first equation by 3

6x +9y = 39

then add the 2nd equation to the first

6x +9y = 39

–6x + 4y = 0

-------------------

13y = 39

divide by 13

y =3

now take an equation and solve for x by substituting in y

2x +3y =13

2x +3(3) =13

2x+9 =13

subtract 9 from each side

2x =4

divide by 2

x=2

Answer (2,3)

Choice A

Answer:

Step-by-step explanation:

you have the numbers 1-25 written on slips of paper. if you choose one slip at random, what is the probability that you will select a number that divisible by 4

Answers

since there are 25 numbers there is 6/25 chances to pull a number divisible by 4 if you want a percent you divide the numerator 6 by the denominator 25 which is 0.24 then you move the decimal over to the right twice and you get 24%

Katie says when n=3 the answer to 4n2=144jack says when n=3 the answer to 4n2=36who is correct and why?