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snow_lady [41]
2 years ago
5

Given 1.92 x 10^3 , which represents this numbers in standard form?

Mathematics
1 answer:
DochEvi [55]2 years ago
6 0

Answer:

Some calculators also display the ' × 10 ' part of the number, but not all do. You need to find out what your calculator displays. Remember, you must always write the ' × 10 ' part when you are asked to give an answer in standard form.

Step-by-step explanation:

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There are 8 more dairy cattle on the farm than beef cattle.
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3 years ago
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In 2002, a robot explored a tunnewl 210 feet long inside the
zvonat [6]

Answer:

y= 10x

Step-by-step explanation:

In 2002, a robot explored a tunnel 210 feet long inside the

Great Pyramid in Egypt. The robot could travel about 10 feet per

minute.

The speed of the robot is 10 feet per minute

we need to find the equation for giving distance y

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to time is x minutes

Distance = speed x time

speed=10, distance is y and time is x

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3 0
3 years ago
find an equation of the line that passes through the point (3,-1) and is perpendiculor to line with slope -1/2
GrogVix [38]

Answer:

perp. 2

y + 1 = 2(x - 3)

y + 1 = 2x - 6

y = 2x - 7

7 0
3 years ago
What are the answers to these 2 question 4&5 PLZ HELP
Ahat [919]
The first problem:

y = -2 x²  ⇒⇒⇒ x² = -y/2 →(1)33 x² + y² = 27 → (2)
By substitution from (1) at (2) with the value of x²
∴ 33 (-y/2) + y² = 27
∴ y² - 16.5 y - 27 = 0
a = 1 , b = -16.5 , c = -27
∴ y= \frac{-b \pm  \sqrt{b^2-4ac} }{2a} = \frac{16.5 \pm  \sqrt{(-16.5)^2-4*1*(-27)} }{2*1}
∴ y = 18 or y = -3/2
By substitution from at (1) with the value of y
for y = 18   ⇒⇒⇒ x² = -18/2 = -9 (unacceptable)
for y = -3/2 ⇒⇒⇒ x² = -(-3/2)/2 = 3/4
∴ x= \pm \sqrt{ \frac{3}{4} } = \pm  \frac{ \sqrt{3} }{2} 

The correct options are 2 , 7
Solution of the system of equations is 
( \frac{ \sqrt{3} }{2} ,  \frac{-3}{2} )
and   
( -\frac{\sqrt{3} }{2} ,  \frac{-3}{2} )
==================================
The second problem:
The general equation of the hyperbole is 
\frac{x^2}{a^2} - \frac{y^2}{b^2} =1

Transverse axis is horizontal 

The equation if the asymptotes are y = \pm \frac{b}{a}x
For the given equation:
\frac{x^2}{225} -  \frac{y^2}{36} = 1
a² = 225 ⇒⇒⇒ a = √225 = 15
b² = 36   ⇒⇒⇒ b = √36 = 6
∴ the slope of the <span><span>asymptotes = </span>b/a   and  -b/a
</span><span>
</span><span>b/a = 6/15 = 2/5
</span><span>
</span><span>-b/a = -6/15 = -2/5
</span><span>
</span><span>∴ m = 2/5   and   m = -2/5
</span>






3 0
2 years ago
At the basketball game, Leo scored points in 30% of his attempts. Which of the following statements is true?
netineya [11]

Answer:

C. Leo scored points in 3/10

Step-by-step explanation:

30% is 30/100

So also 3/10

4 0
2 years ago
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