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likoan [24]
3 years ago
7

On a number line, the surface of a river is marked at −225 feet and the top of a building is marked at +18 feet, where 0 represe

nts sea level. What do −225 and +18 represent? 225 feet above sea level and 18 feet below sea level 225 feet below sea level and 18 feet above sea level 225 feet below sea level and 18 feet above 225 225 feet above sea level and 18 feet below 225
Mathematics
2 answers:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

225 feet below sea level, 18 feet above sea level.

Step-by-step explanation:

Negative represents below, if the 0 is sea level, and positive represents above.

tatuchka [14]3 years ago
4 0

Answer:

Option B.

Step-by-step explanation:

The surface of a river has been marked as (-225) feet and the top of the building at (+18) feet.

If we consider surface sea as a base line to calculate the altitudes of certain place, then altitudes above the the river surface will be positive and the altitudes below the river surface will be negative.

Therefore, (-225) feet of a river means 225 feet below the sea level.

+18 feet of a building means 18 feet above the sea level.

Option B, is the answer.

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Help me and I’ll give brainliest! Plsss
olganol [36]
Answer:
(#14 - supplementary) x = 10.5
(#15 - supplementary) x = 10

Explanation:
For these problems, we must know that a supplementary angle can be viewed as a sum of angles that add to 180 degrees. With this known, we can write our equations to find x.

(#14)
15x - 12 + 5x - 18 = 180
20x - 30 = 180
20x = 210
x = 10.5

(#15)
6x + 13 + 14x - 33 = 180
20x - 20 = 180
20x = 200
x = 10

Hope this helps.

Cheers.
4 0
1 year ago
•Mr. Jones and Mr. Thomas
mamaluj [8]

The profit should be shared in proportion to Mr Jones, Mr Thomas and Mr forson capitals in the ratio 21 : 32 : 27 respectively.

<h3>Proportion</h3>

  • Mr Jones capital = $12600
  • Mr Thomas capital =$19200
  • Mr forson capital = $16200

Total capital = $12600 + $19200 + $16200

= $48,000

Mr Jones proportion = $12600 / $48,000

= 21/80

Mr Thomas proportion = $19200 / $48,000

= 32/80

Mr forson proportion = $16200 / $48000

= 27/80

Learn more about proportion:

brainly.com/question/1781657

$SPJ1

8 0
1 year ago
What is the measure of 3?
mafiozo [28]

Answer:

∠3 = 60°

Step-by-step explanation:

Since g and h are parallel lines then

∠1 and ∠2 are same side interior angles and are supplementary, hence

4x + 36 +3x - 3 = 180

7x + 33 = 180 ( subtract 33 from both sides )

7x = 147 ( divide both sides by 7 )

x = 21

Thus ∠2 = (3 × 21) - 3 = 63 - 3 = 60°

∠ 2 and ∠3 are alternate angles and congruent, hence

∠3 = 60°

5 0
3 years ago
What can you say about the y-values of the two functions f(x)=-5^x +2 and g(x)=-5x^2+2?
Kryger [21]

Answer:

B) The maximum y-value of f(x) approaches 2

C) g(x) has the largest possible y-value

Step-by-step explanation:

f(x)=-5^x+2

f(x) is an exponential function.

Lim x→∞ f(x) = Lim x→∞ (-5^x+2) = -5^(∞)+2 = -∞+2→ Lim x→∞ f(x) = -∞

Lim x→ -∞ f(x) = Lim x→ -∞ (-5^x+2) = -5^(-∞)+2 = -1/5^∞+2 = -1/∞+2 = 0+2→

Lim x→ -∞ f(x) = 2

Then the maximun y-value of f(x) approaches 2


g(x)=-5x^2+2

g(x) is a quadratic function. The graph is a parabola

g(x)=ax^2+bx+c

a=-5<0, the parabola opens downward and has a maximum value at

x=-b/(2a)

b=0

c=2

x=-0/2(-5)

x=0/10

x=0

The maximum value is at x=0:

g(0)=-5(0)^2+2=-5(0)+2=0+2→g(0)=2

The maximum value of g(x) is 2

7 0
3 years ago
Krystal needs at least $130 to go on a trip. Her father has given her $45. Which equality could be used to determine e, the rema
lina2011 [118]

The Least amount of money we need is 130

She already has 45

She needs "e" more

Therefore:

45 + e ≥ 130

4 0
3 years ago
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