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3 years ago

Can you find the sum [5.5+ (-2.3)] + (-5.5+2.3) without performing any additions?

1 answer:

7 0

Yes
[5.5+(-2.3)] can be rearranged to be 5.5-2.3. It will be 3.2
(-5.5+2.3) can be rearranged to be 2.3-5.5. It will be -3.2
3.2-3.2=0

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Which theorem would be used to prove the triangles below as congruent?

Stells [14]

Answer:

A: HL

Step-by-step explanation:

The hypotenuses of these right triangles are marked congruent.

One leg of these right triangles is marked congruent.

The HL theorem applies.

4 0

2 years ago

In a recent 10-year period, the change in the number of visitors in the U.S. National parks was about -11,150,000. What was the

Trava [24]

Answer:

Mean = -1,115,000 per year.

Step-by-step explanation:

Mean = (Σx)/N

The mean is the sum of variables divided by the number of variables

Σx = sum of variable = change in number of visitors over a 10 year period = -11150000

N = number of variables = 10

Mean = (-11150000)/10

Mean = -1,115,000 per year.

Hope this Helps!!!

4 0

3 years ago

Pleaseeehelp me !!!!

Volgvan

Answer:

Go on to photo math it's good for equations

8 0

3 years ago

Find the value of x 12x 6x+28 Your answer

Irina18 [472]

Step-by-step explanation:

Hey there!

By looking at the figure, the given "2x" and "6x + 28" are co-interior angle.

So,

2x + 6x + 28 = 180°. ( sum of co-interior angle is 180°)

8x + 28°=180°

8x = 180° - 28°

8x = 152°

$x = \frac{152}{8}$

X = 19°

Therefore, X = 19°.

Hope it helps...

3 0

3 years ago

Read 2 more answers

Ryan is biking at 31.8 miles per hour. what is his speed in feet per second? round to nearest tenth

aliina [53]

Answer:

46.6 ft/sec (to the nearest tenth)

Step-by-step explanation:

There's a common identity useful here: 60 mph = 88 ft/sec.

Mult. 31.8 mph by the conversion factor (88 ft/sec) / (60 mph), obtaining:

46.64 ft/sec.

3 0

3 years ago