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katovenus [111]
2 years ago
9

This is all they gave me PLZ HELP

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
7 0
10833 because Albert Einstein went to the moon and back 42000
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3.5 m
marysya [2.9K]

Answer:

This question seems to be incomplete, I guess that we have a circular pool, with a diameter of 3.5 m.

Now, the circunference of a circle can be written as:

C = 2*pi*r

where:

pi = 3.14

r = radius = half of the diameter = 3.5m/2 = 1.75m

Then replacing those values in the equation for the circumference we have:

C = 2*3.14*1.75m = 10.99 m.

And knowing that the value of pi is actually larger than 3.14 (pi = 3.1415926535....)

We can safely round up the circumference to the next whole number, C = 11m

4 0
3 years ago
Solve the system using elimination.<br><br> 5x + 8y = –29<br> 7x – 2y = –67
Snowcat [4.5K]
7x-2y+-67
<span>multiply both sides of the bottom by 4 and add </span><span>                                           5x+8y=-29 </span>
<span> 28x-8y=268</span>
 
  33x=-297
<span>   x=-9 </span>


<span>5(-9) +8y= -29 </span>
<span>-45 +8y =-29 </span>
<span>8y= 16 </span>
y=2
8 0
3 years ago
In Arizona, a minimum temperature of -40°F was recorded at Hawley Lake 1971. A maximum recorded
ddd [48]
I Believe it would be 53 because it’s asking what is the difference and they difference would have to be 53 your going from a negative to a positive
3 0
2 years ago
Solve each of the following quadratic equations<br><br> 3x=0.5x^2<br><br><br> 0=5x^2-2x+6
UNO [17]

<u>Question 1</u>

<u />3x=0.5x^{2}\\\\6x=x^{2} \\ \\ x^{2}-6x=0 \\ \\ x(x-6)=0 \\ \\ \boxed{x=0, 6}

<u>Question 2</u>

<u />0=5x^{2}-2x+6 \\ \\ x=\frac{2 \pm \sqrt{(-2)^{2}-4(5)(6)}}{2} \\ \\ x=\frac{2 \pm \sqrt{-116}}{10} \\ \\ x=\frac{2 \pm 2i\sqrt{29}}{10} \\ \\ \boxed{x=\frac{1 \pm i\sqrt{29}}{5}}

6 0
2 years ago
Which of the following is a reflection of ( 2,4 ) across the x-axis?
fiasKO [112]

Answer:

(2,-4)

Step-by-step explanation:

(2,4) is located in Quadrent I (+,+), if you reflect over the x-axis, it would be in Quadrent IV (+,-).

if you dont understand I suggest you draw a coordinate plane on a graphing notebook.

7 0
2 years ago
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