3 years ago

Help me plz i have 3 question 30 points

1 answer:

3 0

Here're the answers!!! Good luck!!
1) a = -7 (The first picture -Left to right)
2) x = -39
3) a = -2.1 (The last picture left to right)

Hoping this helped you out!! If my answer best helped you, please mark Brainliest! ;)

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Help~~~~~~~~~~~~~~~~~~~~~~~~~

igor_vitrenko [27]

Answer:

28.25 square units

Step-by-step explanation:

A circumference of the circle is

$C=2\pi r,$

where r is the radius of the circle.

So,

$18.84=2\pi r\\ \\r=\dfrac{18.84}{2\pi}=\dfrac{9.42}{\pi}\ cm$

The area of the circle is

$A=\pi r^2$

Substitute the value of the radius:

$A=\pi \cdot \left(\dfrac{9.42}{\pi}\right)^2=\dfrac{9.42^2}{\pi}\approx 28.25\ un^2$

8 0

3 years ago

Read 2 more answers

3x2 - 2x = 0<br> Factorise and solve

malfutka [58]

Solve : 3x-2 = 0

Add 2 to both sides of the equation :

3x = 2

Divide both sides of the equation by 3:

x = 2/3 = 0.667

Two solutions were found :

x = 2/3 = 0.667

x = 0

hope this helped

6 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20ln%283x%20%2B%204%29%20%3D%20%20-%205" id="TexFormula1" title=" ln(3x + 4) = - 5" alt=" ln

balandron [24]

The answer is negative three

6 0

3 years ago

Find the two numbers whose deference is 10 and sum is 34

mezya [45]

Answer:

the correct answer is 22 and 12

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Total Cost (in dollars)

Crank

This problem has been solved! See the answer Determine Um (mode ), average U, and Urms for a group of ten automobiles clocked by radar at speeds 38,44,48,50,55,55,57,58 and 60mi/h respectively

6 0

3 years ago