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lawyer [7]
2 years ago
13

Please solve this quadratic equation:3^2x -9 =0​

Mathematics
1 answer:
Basile [38]2 years ago
4 0

Answer:

{3}^{2} x - 9 = 0 \\ 9x = 9 \\ x = 1

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5.6 x N= 2.24 N=? Please help
dlinn [17]

Answer:

N = -3.36

Step-by-step explanation:

5.6 x N= 2.24

-5.6          -5.6

N= -3.36

3 0
3 years ago
Read 2 more answers
121 bricks in 16.5 minutes 22 brings in m minutes
Westkost [7]
Use a proportion.

121/16.5 = 22/m

121m = 16.5 * 22

11m = 16.5 * 2

11m = 33

m = 3

3 minutes.
4 0
3 years ago
Can someone help me pls
White raven [17]

Answer:

maybe 223 degrees

Step-by-step explanation:

3 0
2 years ago
Tyra makes $21.40 per hour at her job for the first 40 hours and $32.10 for anything over 40 hours. if tyra typically works 45 h
Debora [2.8K]
She works for 40 hours, and then 5 hours.
So, for these first 40 hours, Tyra earns $21.40 per hour. We can find how much she earns in 40 hours:

21.40 x 40 = 856.
So, in the first 40 hours, she makes $856.

Now, for any number of hours Tayra works more that 40 hours, she will earn $32.10 each hour.

She works 5 hours over 40 hours, since it is 45 hours in total.
Hence, Tayra will earn $32.10 every hour for the 5 hours:

5 x 32.10 = 160.5.
Therefore, she will earn $160.50 for the 5 hours.

Now we have both of the earning amounts that make up how much she makes in the 45 hours. We can add them together

40 hours + 5 hours = 45 hours.
Substitute the amounts in the hours.

856 + 160.5 = 1016.5.

Thus, the answer is that Tyra will warn $1,016.50 in the total 45 hours.
Ergo, the correct answer is C.

Hope this helps, let me know if you need anything else! :)
7 0
3 years ago
Read 2 more answers
Here is a five-sided polygon. Describe or show the strategy you would use to find its area. Mark up and label the diagram to sho
MrRissso [65]

Answer:

i can explai it to u if u wan to get the answer

Step-by-step explanation:

Divide the polygon into 5 triangles by using each side as a base and joining the vertices of the polygon to a common point (for example, the centre). If the polygon is regular the angle at the vertex of each triangle is 360/5=72 degrees, so you have 5 isosceles triangles of equal area. Find the area of one and multiply by 5 to get the total area.multiply 5 times the lenght of oneside

6 0
3 years ago
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