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3 years ago

How this is so hard plz help me on this

Mathematics

1 answer:

omeli [17]3 years ago

3 0

5) EJ
6) EJF
7) BJA
8) JB
9) obtuse angle
10) right angle
11) AFB & BFC

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In a Cartesian coordinate system, the horizontal axis is called the x-axis and the____ axis is called the y-axis?

lianna [129]

Answer:

"vertical" (y axis), "lateral" (x axis), and "horizontal" (z axis)

Step-by-step explanation:

4 0

3 years ago

a circular oil slick is expanding at a rate of 2m^2/h. Find the rate at which it's diameter is expanding when it's radius is 1.5

aleksandrvk [35]

Answer: $\frac{4\pi}{3} \text{ meter per hour}$

Step-by-step explanation:

The circular oil slick is expanding at a rate of $2 m^2/h$

Let A be the area of the circular oil slick,

So, the changes in A with respect to time (t),

$\frac{dA}{dt} = 2$

$\frac{d(\pi r^2)}{dt} = 2$

$2\pi r\frac{dr}{dt} = 2$

$\frac{dr}{dt} = \frac{1}{\pi r}$

Also, the change in diameter with respect to time(t),

$\frac{d}{dt} (2 r) = 2 \frac{dr}{dt}$

$\frac{d}{dt} (2 r) = 2 \times \frac{1}{\pi r}$

$\frac{d}{dt} (2 r) = \frac{2}{\pi r}$

For r = 1.5 m,

$\frac{d}{dt} ( 2 r)]_{r=1.5} = \frac{2}{\pi \times 1.5}=\frac{20}{\pi \times 15}=\frac{4\pi }{3}\text{ meter per hour}$

7 0

2 years ago

How to estimate 9.1% of 59.3

gavmur [86]

Answer:

Step-by-step explanation:

For a quick rough estimate, I'd round 9.1% up to 10% and 59.3 to 60. 10% of 60 is 0.1(60) = 6.

For a more accurate estimate, round 9.1% down to 9% and 59.3 up to 60. Then 9% of 60 is 5.4.

7 0

3 years ago

The simplified form of an expression is StartFraction 1 Over 256 EndFraction t Superscript 28. Which expression was simplified?

blsea [12.9K]

Answer:

Have you gotten the answer yet since you probably already finished the quiz?

Step-by-step explanation:

8 1

3 years ago

Read 2 more answers

Anyone pzzz answer this giving brainlist and 50 points for correct answer

Nuetrik [128]

Answer:

see below

Step-by-step explanation:

12x+24x+18 = 36x+24-6

Combine like terms

36x+18 = 36x+18

Subtract 36x from each side

36x+18-36x = 36x+18-36x

18 = 18

This is always true, so the equation is true for all values of x

6 0

2 years ago