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3 years ago

A dilation has center at the origin. Which of the following is the image of the point P(1.- for a scale

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

Answer:

C. $D_\frac{1}{7} (P)=P'(\frac{1}{4},-\frac{5}{14} )$

Step-by-step explanation:

$\frac{7}{4}*\frac{1}{7}=\frac{7}{28} =\frac{1}{4}$

$-\frac{5}{2} *\frac{1}{7} =-\frac{5}{14}$

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I need help its a review form a few years ago i cant rember pls answer both

nalin [4]

Answer:

u didnt add the picture

Step-by-step explanation:

3 0

3 years ago

CONVERT TO SCIENTIFIC NOTATION:

Otrada [13]

1)1.082*10^9
2)1.496*10^8
3)2.2794*10^8
4)7.784*10^5
5)1.4236*10^9
6)2.867*10^9
7)4.4884*10^9
Hope it helped!

6 0

4 years ago

What is the intersection of y=7 and y=1\2x+6

kotegsom [21]

Y=7 is just a straight horizonal line that is perpendicular to the y axis at 7

and y=1/2x+6, is in y=mx+b form where m=slope and b=yintercept so

to find the intersection, yo just find when both sentances are correct so

y=7
subsitute that into y=1/2x+6

7=1/2x+6
subtract 6 from both sides
1=1/2x
multiply both sides by 2
2=x

so the point (2,7) is the intersection

8 0

3 years ago

A tank can be filled by one pump in 3.2 hours and by another pump in 80 minutes. A third pump can drain the tank in 2 hours and

Mademuasel [1]

Answer:

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

Step-by-step explanation:

Let's convert each time to minutes:

3.2 hours = 192 minutes

80 minutes = 80 minutes

2 hr 20 min = 140 minutes

Next, let's find the least common multiple:

LCM(192, 80, 140) = 6720

So let's say the volume of the tank is 6720 units. The speed of each pump is therefore:

Pump 1 = 6720 units / 192 minutes = 35 units/minute

Pump 2 = 6720 units / 80 minutes = 84 units/minute

Pump 3 = -6720 units / 140 minutes = -48 units/minute

Their combined speed is:

35 + 84 − 48 = 71 units/minute

So the time to fill the tank is:

6720 units / (71 units/minute) = 94.65 minutes

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

6 0

4 years ago

I need help plz help me

Marta_Voda [28]

Answer:

3000g

hope this helps

7 0

3 years ago