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AlladinOne [14]
3 years ago
11

the value of x - y is negative an X and Y are both positive what can conclude about the values of X and Y?

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

You can conclude that X is smaller than Y. For example:
(2,5)
2 + 5 = 7
2 - 5 = -3

Hope this helped!

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1. The triangles above are similar. What is the ratio (larger to smaller) of the perimeters? (1 point)
eimsori [14]

Answer:

Ratio = 5/3

The ratio (larger to smaller) of the perimeters is 5/3

Step-by-step explanation:

Attached is an image of the two triangles.

Since both triangles are similar, the ratio of their perimeter is equal to the ratio of each similar sides.

Ratio = P1/P2 = S1/S2

Similar side for triangle 1 S1 = 15ft

Similar side for triangle 2 S2 = 9ft

Substituting the values;

Ratio = 15ft/9ft = 5/3

Ratio = 5/3

The ratio (larger to smaller) of the perimeters is 5/3

7 0
3 years ago
The price of an item has been reduced by 85%. The original price was $37.
Tema [17]

Answer:  <em>Multiply the original price by the decimal form of the percent and subtract that from the original price. </em>

<em>37*0.85=31.45 </em>

<em>37-31.45=5.55 </em>

<u><em>Answer: New price is $5.55</em></u>

7 0
2 years ago
Question 4 (1 point)
Nostrana [21]

Answer:

The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.

Step-by-step explanation:

Height of a mountain, h = 90 feet

Upward velocity of a ball, u = 64 ft/s

Its height as a function of time can be written by using the second equation of motion as follows :

f(x) = -16t^2 + 64t + 960 .....(1)

When it will hit the ground, f(x) = 0

-16t^2 + 64t + 960=0\\\\16(-t^2+4t+60)=0\\\\-t^2+4t+60=0

It is quadratic equation.

t = -6 s and t = 10 s

Neglecting -6 seconds, the ball will hit the ground at 10 seconds.

For maximum height,

Put f'(x) = 0

-32t+64=0\\\\\\t=\dfrac{64}{32}\\\\t=2\ s

Put t = 2 in equation (1)

f(2) = -16(2)^2 + 64(2) + 960\\\\=1024\ \text{feet}

Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.

5 0
2 years ago
Help me please!!!!!!!!
lys-0071 [83]

Answer:

The first part/question sounds like a Division problem because theirs 18 guests and each slice feeds 6 people. Therefore, Laura orders 3 boxes of Pizzas. But make sure you try Photomath,V3, or Khan Academy apps before you write down the answer to the first question.

5 0
2 years ago
Evaluate given function. Pleas helpp
Bad White [126]

Answer:

f(9) =-80

Step-by-step explanation:

Given

The attached functions

Required

Find f(9)

We have:

f(x) =-x^2 - 2x + 19

So:

f(9) =-9^2 - 2*9 + 19

f(9) =-81 - 18 + 19

f(9) =-80

6 0
3 years ago
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