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3 years ago

Quisbentuk pangkat dari2² + 3² - 2²=note:. user Indonesia

Mathematics

2 answers:

aivan3 [116]3 years ago

8 0

Answer:

9 Should be your answer

Step-by-step explanation:

$2^{2}$ = 4

$3^{2}$ = 9

These will help us as we solve this problem.

Then: 2² + 3² - 2²

= 4 + 9 - 4

= 9

Kind requests:

Please give brainliest :D

Triss [41]3 years ago

7 0

Step-by-step explanation:

2²+3²-2²=3²=9........

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Jake fills a tank that can hold 200 gallons of water. The tank already has 50 gallons of water in it when Jake starts filling it

Ede4ka [16]

Answer:

Let m represent the number of minutes.

Amount of water in Karla's tank: 100 + 5m

Amount of water in Jake's tank: 50 + 10m

Same amount of water: 100 + 5m = 50 + 10 m

---> 100 = 50 + 5m

---> 50 = 5m

---> 10 = m

In ten minutes, Karla's tank will have 100 + 5(10) = 100 + 50 = 150 gallons.

In ten minutes, Jake's tank will have 50 + 10(10) = 50 + 100 = 150 gallons.

Step-by-step explanation:

hope this helped!

4 0

2 years ago

What is the equation of the line perpendicular to y=2/3x+1 that passes through the point (12, -6)?

bixtya [17]

Answer:

y= -3/2x + 12

Step-by-step explanation:

When finding a perpendicular line you take your slope and make it the opposite (flip it and change the sign).

Slope originally=2/3

New slope= -3/2

Next we will use the point slope equation

y-y1=m(x-x1)

y1=y value

m=slope

x1=x value

y--6= -3/2(x-12) Since you have y minus negative 6 you get to change it to y+6

y+6= -3/2(x-12) Now distribute your slope to both terms inside the parenthesis.

y+6= -3/2(x) -3/2(-12)

y+6= -3/2x +18 Finally subtract 6 from both sides.

-6 -6

y= -3/2x + 12

5 0

3 years ago

Barbara drives between Miami, Florida and West Palm Beach, Florida. she drives 45 miles in clear weather and then encounters a t

WINSTONCH [101]

Answer:

Barbara's speed in clear weather is $60mph$ and in the thunderstorm is $38mph$ .

Step-by-step explanation:

Let $v_1$ be the speed and $t_1$ be the time Barbara drives in clear weather, and let $v_2$ be the speed and $t_2$ be the time she drives in the thunderstorm.

Barbara drives 22 mph lower in the thunderstorm than in the clear weather; therefore,

(1). $v_2 = v_1 -22$

Also,

(2). $v_1t_1 = 45miles$

(3). $v_2 t_2 = 57$ ,

and

(4). $t_1+t_2 = 2.25hr$

From equations (2) and (3) we get:

$t_1 = \dfrac{45}{v_1}$

$t_2 =\dfrac{57}{v_2}$

putting these in equation (4) we get:

$\dfrac{45}{v_1}+\dfrac{57}{v_2}=2.25$

and substituting for $v_2$ from equation (1) we get:

$\dfrac{45}{v_1}+\dfrac{57}{v_1-22}=2.25$

This equation can be rewritten as

$2.25v_1^2-151.5v_1+990=0$

which has solutions

$v_1 = 60$

$v_1 = 7.33$

We take the first solution $v_1 =60$ because it gives a positive value for $v_2:$

$v_2 = v_1 -22$

$v_2 = 60 -22\\$

$v_2 = 38$ .

Thus, Barbara's speed in clear weather is $60mph$ and in the thunderstorm is $38mph$ .

4 0

4 years ago

PLS HELP!!! BRAINLIEST

Alina [70]

Answer:

Using the visual, 20 blocks, but you still need to change it to match the problem's scale

Step-by-step explanation:

First just try to find a way out and count the blocks. That's what I did. The part I haven't done is scale it. As the starting and end points of the grid are given, but where they fall is not clear, I don't know what the block to number ratio is. Sorry, maybe ask a teacher, they shouldn't take off any points.

5 0

3 years ago

Each cube in this figure is a -centimeter cube. What are the dimensions of the prism? Select all that are true.

finlep [7]

Answer:

he first one and the third one

Step-by-step explanation:

5 0

3 years ago

Quisbentuk pangkat dari2² + 3² - 2²=note:. user Indonesia​

Quisbentuk pangkat dari2² + 3² - 2²=note:. user Indonesia