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2 years ago

Someone pls help!!!!

Mathematics

1 answer:

Temka [501]2 years ago

6 0

Answer:

see below for the reflection
(2, -5)

Step-by-step explanation:

Reflection across the y-axis changes the sign of the x-coordinate. What was 2 units left of the y-axis is reflected to be 2 units right of the y-axis. The y-coordinate does not change.

(x, y) ⇒ (-x, y)

P(-2, -5) ⇒ P'(2, -5)

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Convert 25 feet per second to miles per hour, with work show.

bulgar [2K]

we know there are 5280 feet in 1 mile, and there are 3600 seconds in 1 hour.

$\bf \cfrac{25 \underline{ft}}{sec}\cdot \cfrac{mi}{5280 \underline{ft}}\cdot \cfrac{3600 \underline{sec}}{hr}\implies \cfrac{25\cdot 3600}{5280}\cfrac{mi}{hr}\implies \cfrac{375}{22}\cfrac{mi}{hr}\implies 17.0\overline{45}\frac{mi}{hr}$

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2 years ago

Find −a2 − 3b3 + c2 + 2b3 − c2 if a = 3, b = 2, and c = −3.

Juliette [100K]

Answer:

-17

Step-by-step explanation:

Ans. - 17

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3 years ago

Which expression is equivalent to (3x-6)(4x+1)

vodka [1.7K]

Answer:

12x^2 -21x -6

Step-by-step explanation:

(3x-6)(4x+1)

FOIL

first 3x*4x= 12x^2

outer 3x*1 = 3x

inner -6*4x = -24x

last -6*1 = -6

Add them together

12x^2 +3x -24x -6

Combine like terms

12x^2 -21x -6

8 0

2 years ago

Question 2

kari74 [83]

Answer:

7:55 am

Step-by-step explanation:

To determine the time needed to leave, add up all of the elapsed time and subtract that from the 8:50 departure time. The 10 minutes from walking to the platform puts us at 8:40 am, 30 minutes to reach the station puts us at 8:10 am, and the extra 15 minutes gives a time of 7:55 am.

4 0

1 year ago

Ksju [112]

Answer:

40%

Step-by-step explanation:

6 0

2 years ago