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Kryger [21]
2 years ago
11

Which of the following are solutions to the equation below? Check all that apply. 4x2 - 81 = 0

Mathematics
1 answer:
Vinil7 [7]2 years ago
8 0

Answer:

9/2 -9/2

Step-by-step explanation:

Hope this helps! ;-)

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M m =<br> 5m+100°<br> 2m+10°
Alex_Xolod [135]

Answer:

m= 20 for one becouse 5×20 is 100

m= 5 because 5×2 is 10

or do 5÷100 that is 20

and 2÷10 that is 5

4 0
3 years ago
Simplify the expression 2√5 * √19
Sedbober [7]

Answer:

Step-by-step explanation:

2√5*√19=2√95≈19.494≈19.49≈19.5

if you want exact then 2√95

if three decimal places then 19.494,if two decimal places then 19.49 ,if one decimal place then 19.5

6 0
3 years ago
I need help fast it’s a timed test
AleksAgata [21]

Answer:

x=7

Step-by-step explanation:

Add 10 to both sides to isolate x.

4x=28

x=7

7 0
3 years ago
Read 2 more answers
Use the equation k = x÷ y to find the constant of proportionality for the set of values
Lubov Fominskaja [6]

The constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12       15

<h3>Variation</h3>

From the question, we are to determine the constant of proportionality

The given equation is

k = x ÷ y

From the given information,

When x = 1, y = 3

∴ k = 1 ÷ 3

k = 1/3

Thus, the constant of proportionality is 1/3

Now, we will determine the values of y for the values x = 3, x = 4, and x = 5

Since

k = x ÷ y

Then,

y = x ÷ k

When x = 3

y = 3 ÷ 1/3

y = 3 × 3

y = 9

When x = 4

y = 4 ÷ 1/3

y = 4 × 3

y = 12

When x = 5

y = 5 ÷ 1/3

y = 5 × 3

y = 15

Hence, the constant of proportionality is 1/3

and three more values are

x       1        2        3        4        5        

y       3       6        9        12        15

Learn more on Variation here: brainly.com/question/19641181

#SPJ1

3 0
3 years ago
The man brought three buses for 9694820. One bus cost Rs352750
hodyreva [135]

Answer:

Cost of 3 buses = 9694820

cost of 1 bus=352750

cost of another bus=3029870

cost of the third bus= 9694820-(352750+3029870)=6312200

8 0
3 years ago
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