MATHEMATICS HIGH SCHOOL

Arun has captured many yellow-spotted salamanders. He weighs each and then counts the number of yellow spots on its back. This trend line is a fit for these data. A. negative

B. weak

C. parabolic

D. strong

Answers

Answer 1

Answer:

Answer: D. Strong

Step-by-step explanation:

Correct on A P E X

Ignore the first answer

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Eloise needs to rent a car. She goes to the rental agency and finds out that she will have to pay a fee of $35 and then an additional $0.10 for every mile that she drives. How much will she have to pay if she drives 20 miles?A) $2
B) $33
C) $37
D) $55
E) $70

Answers

C 0.10 x 20 = 2 2+35=37

If the perimeter of a right triangle is 42 units and the length of the hypotenuse is 20 units, find the length of the other two sides of the triangle.Can you please show work

Answers

so
a^2+b^2=c^2
c=hypotenuse
a^2+b^2=20^2=400

if the permiter is 42 then
p=hypotonuse+side+side
42=20+side+side
subtract 20 from both sides
22=side+side

a+b=22
subtract b from both sides
a=22-b
subsitute for a in equation below
a+2+b^2=c^2
(22-b)^2+b^2=400
b^2-44x+484+b^2=400
2b^2-44x+484=400
divide both sides by 2
b^2-22x+242=200
subtract 200 from both sides
b^2-22x+42=0
factor
(b+/-number)(b+/-number)
to find the numbers, find which 2 number multiply to 42 and add to get -22
the numbers must be neative since same signs multiplied=positive and negative+negative=negative
(b-number)(b-number)
facrors of 42=2,3,6,7,14,21
2,21
3,14
6,7
it's hard to find the number, but the numbers are -19.8882 and -2.11181
(b-19.8882)(b-2.11181)=0
if xy=0 then assume that x and y=0

b-19.8882=0
add 19.8882 to both sides
b=19.8882

b-2.11181=0
add 2.11181 to both sides
b=2.11181

the side legnths are 19.8882 units and 2.11181 units

Ten to the fourth power as a product of tens

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

What are two numbers that multiply to -20 and add up to 1?

Answers

  xy = -20
x + y = 1

x + y = 1
x - x + y = -x + 1
y = -x + 1

xy = -20
x(-x + 1) = -20
  x(-x) + x(1) = -20
-x² + x = 20
-x² + x + 20 = 0
-1(x²) - 1(-x) - 1(-20) = 0
  -1(x² - x - 20) = 0
-1 -1
x² - x - 20 = 0
x = -(-1) ± √((-1)² - 4(1)(-20))
2(1)
x = 1 ± √(1 + 80)
2
x = 1 ± √(81)
2
x = 1 ± 9
2
x = 0.5 ± 4.5
x = 0.5 + 4.5 or x = 0.5 - 4.5
x = 5      or      x = -4

  x + y = 1
  5 + y = 1
- 5 - 5
y = -4
(x, y) = (5, -4)
or
x + y = 1
  -4 + y = 1
+ 4   + 4
y = 5
(x, y) = (-4, 5)

The two numbers that add up to 1 and multiply to -20 are -4 and 5.

Can someone solve this please

Answers

I GOT YOU.
First things first,
When multiplying fractions, it's super super super simple. Just multiply the numerator and denominator across, then simplify if needed!
________________________________
To solve your problem,
1. multiply the numerator across.
3 x 4 x 7 = 84
2. multiply the denominator across.
5 x 2 x 3 = 30
3. now you have the fraction $(84)/(30)$ (84/30 if you're on mobile)
4. simplify
84/30 has a common factor of 6. So it simplifies to 14/5.

Your answer is 14/5

Which is an equation for a line that passes through (0,-3) and is perpendicular to the graph of the line y = 2 x - 3?