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Virty [35]
3 years ago
13

HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check ALL that apply

Mathematics
1 answer:
Lostsunrise [7]3 years ago
3 0

Answer:

  A, B

Step-by-step explanation:

After being simplified and put in standard form, the equations are ...

  A. 3x² +8x -13 = 0 . . . a quadratic

  B. 3x² -x -30 = 0 . . . . a quadratic

  C. 4x = -16 . . . . . . . . . a linear equation, not quadratic

  D. 3x⁴ -5x -6 = 0 . . . . a quartic equation, not quadratic

Both of the quadratic equations can be solved using the quadratic formula.

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A car travels 80 kilometres in 2 and a half hours. What is its speed in kilometres per hour?
Allisa [31]
If a car travels 80 km/total distance is 450 km, how much time is required to reach? A car covers half of the distance between two places at 40km per hour and the other half distance at 60 km per hour!

I hope this helped! Mark me Brainliest! :) -Raven❤️
4 0
3 years ago
What is 5,827,208 times 55,464
KatRina [158]

Answer:

323,200,264,512

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8 0
3 years ago
Read 2 more answers
In the regual nonagon shown, what is the measure of angle x?
andre [41]
The sum of the interior angles of a polygon is (n-2)*180, n being the number of sides.
a nonagon has nine sides, so the total of interior angles is (9-2)*180=7*180
this is a regular nonagon, so each interior angle has the same degrees:
7*180/9=7*20=140
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40 is the correct answer.
4 0
3 years ago
HELP WITH THESE TWO MATH QUESTIONS PLEASE!!!<br> ASAP!
Brilliant_brown [7]
The first picture would be choice answer c because the number of x's represent how many birds wings are this size. The number on the tic mark represents the size of the wing span. So you would take the number of x's times the tic mark represented under it. There are 3 birds with 3 1/8  wingspan so it wold be 3 1/8 *3. Hoped this helps for the first one!
8 0
2 years ago
A table is 2 feet wide it is 6 times as long it is wide
yan [13]

Answer:

Length = 12 feet

Perimeter = 28 feet

Area = 24ft²

Step-by-step explanation:

You didn't ask a question so I don't know what the answer you want is so I assumed it was related to one of the answers shown above.

To calculate the length, you simply do 6*2

which is equal to 12.  

The length is 12 feet.

However, if you want to find the perimeter:

12 + 12 + 2+ 2 =  28ft

If you wanted to find the area:

12*2 = 24ft²

I hope this helps!

7 0
3 years ago
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