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ddd [48]
2 years ago
11

31 7/8 - 2/7 = what please i really need the answers for my school

Mathematics
1 answer:
Fittoniya [83]2 years ago
8 0

Answer:

9/2

Step-by-step explanation:

You might be interested in
Factor completely 2x^2 +6x -108
never [62]

Answer:

2(x-6)(x+9)

Step-by-step explanation:

5 0
3 years ago
Find the solution for the quadratic equation by completing the square.<br> x^2+18x=63​
vekshin1

Good evening ,

Answer:

<h2>x = 3   or   x = -21</h2>

Step-by-step explanation:

x²+18x=63 ⇌ x²+18x+81 = 63 + 81

⇌ (x+9)² = 144  ⇌ (x+9)² = 12² ⇌ (x+9-12)(x+9+12) = 0

⇌ (x-3)(x+21) = 0

⇌ x=3 or x=-21.

:)

5 0
3 years ago
Read 2 more answers
Please help asap! really important!!
Alexxandr [17]

Answer:

4th graph

6th graph

3rd graph

Step-by-step explanation:

Linear = y = x + 3

it is 4th graph

when you substitute x = 0 y is 3

and when y = 0 x is -3

Quadratic = y = 3x^2

It is 6th graph

for both positive and negative values of x, y is rapidly increasing

Exponential = y = 3^x

it is 3rd graph

for x = 0 y value is 1 because 3^0 = 1

for positive values of x, y is exponentially rising

for negative values of x it is nearly almost touches zero

6 0
2 years ago
What is the magnitude of -3 +4i?
Goshia [24]

Answer:

we have

-3+4i

let magnitude be |z|

|z|=\sqrt{( - 3) {}^{2}  + 4 {}^{2} }

|z|=5 unit

6 0
3 years ago
IL COSL al we creeree viall
kakasveta [241]

Answer:

<em>In the next year, Anthony worked 2,084 hours</em>

Step-by-step explanation:

Anthony worked 1,697 hours in 2010.

We also know Anthony worked 22.8% more hours than in 2010.

The problem requires to calculate how much did Anthony work in the next year.

It can be calculated as follows:

Take 22.8% of 1,697:

22.8 * 1,697 / 100 = 386.916\approx 387\ hours

Now calculate by adding it to the original number of hours:

1,697 + 387 = 2,084 hours

In the next year, Anthony worked 2,084 hours

8 0
3 years ago
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