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insens350 [35]
3 years ago
14

Helps pls :-/ number 12 any help is greatly appreciated!

Mathematics
1 answer:
Alexandra [31]3 years ago
6 0
X = 5, that’s the answer to question 12
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Need help please thanks
tekilochka [14]
I'm guessing d b are equal and a and c are equal or I don't think we would be able to solve so going on that
if angle d is 57 angle b must also be 57
A parallelegram has angles that add up to 360
So 360= 57+57+2c
Solve
360=114+2c
-114 both sides
246=2c
÷2 both sides
123=c
6 0
3 years ago
Suppose an experiment consists of randomly drawing a marble out of a bag and replacing the marble. the bag contains 3 yellow mar
Savatey [412]
Hi there!

Since the yellow marbles to the radio of total marbles is 3/15,

3/15 = 5

We need to divide the total amount is times the marble is drawn by the ratio.

20 ÷ 5 = 4

So, the yellow marble would be drawn 4 times.

Hope this helps!
4 0
3 years ago
Read 2 more answers
Solve for d.<br><br> 6(d+1)−2d=54<br><br><br><br> Enter your answer in the box.
Solnce55 [7]
D = 12 the answer is 12
3 0
3 years ago
Expand and simplify (x+5)(x-2)
neonofarm [45]

Answer:

{x}^{2}  + 3x  - 10

Step-by-step explanation:

(x + 5)(x - 2)

utilise the Foil method to expand brackets:

F - mulply the first terms (x and x)

O - multiply the outside terms ( x and -2)

I - multiply the inside terms (5 and x)

L - multiply the last terms (5 and -2)

Then add them as following:

{x}^{2}   - 2x + 5x - 10

Then combine like terms:

{x}^{2}  + 3x - 10

6 0
3 years ago
Read 2 more answers
ASAP help me please thanks
Marianna [84]

Answer: I think it's D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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