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3 years ago

Ten more than half a number is 9

Mathematics

1 answer:

Flauer [41]3 years ago

5 0

I guess the number is being taken of by 1

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Does y=0.8(2.1)^x represent exponential growth or decay?

makkiz [27]

The function represents exponential growth.

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2 years ago

The coordinates of P and Q are (2,6) and (4,5) respectively. Equation of a line RS is Y= 2X -3. Determine if the lines are paral

Travka [436]

Answer:

Perpendicular

Step-by-step explanation:

Given points P=(2,6) and Q=(4,5)

The line RS is y=2x-3.

Now we know that the line joining any two points (x1,y1) and (x2,y2) has slope m= $\frac{y2-y1}{x2-x1}$

Now the slope of the line PQ is

m1= $\frac{5-6}{4-2}$ = - $\frac{1}{2}$

We know that the slope of the line in the form y=mx+c is m

So the line RS has slope m2=2

Now two lines are parallel if m1=m2

And those two lines are perpendicular if $m1*m2=-1$

here m1= - $\frac{1}{2}$ and m2=2

clearly $m1*m2=-1$

Therefore the two given lines are perpendicular

7 0

2 years ago

In Buffalo, New York, the temperature was 10°F in the morning. If the temperature rose 10°F, what is the temperature now?

Bond [772]

Answer:

20 degrees F

Step-by-step explanation:

4 0

2 years ago

Select the correct answer.<br> What is the value of y in this triangle?

slamgirl [31]

Answer:

36°

Step-by-step explanation:

134° is the exterior angle of the triangle.

By the exterior angle theorm

134° = 98° + y

y = 134° - 98° = 36°

7 0

2 years ago

The directions are with the question. Please answer numbers 6 through 10, please.

prisoha [69]

Answer:

6) 4 (tiny 5) in the upper corner

7) 9 (tiny 2) in the upper corner

8) 4 (tiny 2) in the upper corner

9) 3 (tiny4) in the upper corner

10) 5 (tiny 5) in the upper corner

Step-by-step explanation:

Once you get the hang of it, it's quite easy! Here are the steps for how I figured it out:

1) Figured out what number they are giving me. For the first one, I saw that they gave me the number 4. For the second one, they gave me the number 9 etc.

2) Next, I looked at each problem individually. For the first one, you know that they are giving you the number 4. You would then count the amount of numbers, in this case 4, that you see in the equation.

3) Now knowing the numbers of numbers in the equation, you'd write it in exponential notation. For the first one, they are giving you the number 4, however, they are giving it to you 5 times. Thus, by writing the number 5, smaller than the number 4, you are allowing you and your math teacher to know that you have to take the number 4 and multiply it by itself 5 times.

4) Try doing this for the others too. Trust me, once you get the hang of it, it's pretty simple. Hope this helped!

4 0

3 years ago