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AveGali [126]
3 years ago
7

(25a + 9d) - (10a - 5d)​

Mathematics
2 answers:
Anton [14]3 years ago
4 0

Answer:

15a+14d

Step-by-step explanation:

I just combined like terms

stealth61 [152]3 years ago
4 0

aaaaaaaaaaaaaaaaaaaaaaaaaaaa

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Simplify the following 4√28÷3√7​
finlep [7]

Answer:

8/3 ( Fraction Form), 2.6 ( Decimal Form),  2 2/3 ( Mixed Number Form)

Step-by-step explanation:

Simplify the radical by breaking  the radicand up into  a product of known factors, assuming positive real numbers.

6 0
2 years ago
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The volume of this triangular prism is 140 cubic millimeters. What is the value of d? Please need help!!
Lelechka [254]

Answer:

7 millimeters

Step-by-step explanation:

Volume is the area of the base times it's length.

140/10 is 14

so the area of the triangle is 14

the formula for area of a triangle is base times height divided by 2

so

d x 4/ 2 = 14

multiply both sides by 2

d x 4 = 28

divide both sides by 4

d=7

6 0
3 years ago
I NEED HELP PLEASE! :)<br> thanks!
torisob [31]

Since ΔABC ~ ΔEDC, ∠B = ∠D.

Since both triangles appear to be similar, the corresponding angles are the same, and corresponding sides are the same or have the same ratio.

We can write an equation to resemble the problem:

8x + 16 = 120

Solve for x.

8x + 16 = 120

~Subtract 16 to both sides

8x + 16 - 16 = 120 - 16

~Simplify

8x = 104

~Divide 8 to both sides

8x/8 = 104/8

~Simplify

x = 13

Therefore, the answer is 13.

Best of Luck!

6 0
3 years ago
830000 in scientific notation
DedPeter [7]

Answer:

8.3 * 10 ^5

Step-by-step explanation:

830000

To change this to scientific notation, we move the decimal 5 places to the left.  The exponent will be positive 5 because we moved it to the left

8.3 * 10^ +5

8.3 * 10 ^5

4 0
3 years ago
A box has colored balls (12 red, 10 green, 6 light blue and 8 yellow). What is the probability of drawing 2 red balls?
ale4655 [162]

Answer:

You will have a 33% chance of drawing a red ball

Step-by-step explanation:

If you do 12+10+8+6, you get 36 which then you would ratio it. 12:36, and you would convert that to a percent, which is 33%

7 0
2 years ago
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