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trasher [3.6K]
3 years ago
15

Choose the correct sum of the polynomials (3x3 − 5x − 8) + (5x3 + 7x + 3).

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0
You can first remove the parentheses
= 3x3 -  5x - 8 + 5x3 + 7x + 3
Now add like terms :- 

=  8x3 + 2x - 5
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Arrange these plants by height from shortest to tallest: 3.6m, .45m, 6.2m, 1.23m
jarptica [38.1K]

Answer:

0.45m , 1.23 m, 3.6m, 6.2m

Step-by-step explanation:

Remember to note the placement of the decimal points. The greater the number(s) leaning towards the left, the greater the number will be.

~<em>Senpai</em>

8 0
3 years ago
Find the value of x.
pogonyaev

1st image:

20 (20 + x) = 40^2

400 + 20x = 1600

20x = 1200

   x = 60

---------------

2nd image:

5 * x = 10 * 6

5x = 60

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4 0
3 years ago
Neal is highlighting multiples of 9 on his hundreds chart.what. 3 numbers will he highlight next.
Solnce55 [7]
The next 3 numbers to be highlighted would be 90, 99, and 108.
multiples of 9 is like take 1 times 9 and 2 times 9 and etc.
or you can just keep adding on 9 from the previous number like 81 + 9= 90

8 0
3 years ago
Find the area of the figure.
Alenkinab [10]

Answer:

24 units

Step-by-step explanation:

In this problem, the area of this shape is measured in units.

1 unit = 1 little square

So, lets count all of the full squares. There are 20 of them.

Now lets count all of the half squares. There are 8 half squares.

Now, if we divide 8 over 2, we get 4 full units.

Now we just add up the units: 20 + 4 = 24 units

Hope this helps!

6 0
3 years ago
Read 2 more answers
a floor is 450 ft by 90 ft. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. what are the dimensions of
Minchanka [31]
450/5= 90 units

90/5= 18 units

All you need to do is divide the real dimensions by the scale dimensions, and turn that answer to units. Notice: It said 1 unit: 5 feet

The scale drawing was 90 to 18 units.

I hope this helps!
~kaikers
8 0
3 years ago
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