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Sati [7]
3 years ago
10

Which value from the set (3,8,9,14) makes the equation true? 2n - 5 = 11

Mathematics
1 answer:
NeX [460]3 years ago
3 0

Answer:

3

Step-by-step explanation:

Solve for n

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Can Anyone help me with this, please provide explanation. 15 POINTS!!
S_A_V [24]

Answer:

270

Step-by-step explanation:

We can multiply all of the roots and all of the whole numbers together in this fashion:

9*5 *\sqrt{6*3*2}

this simplifies to:

45\sqrt{36}

45 * 6

= 270

7 0
3 years ago
Read 2 more answers
Solve for x.<br><br> x2 + 4x - 21 = 0
Anton [14]
2x + 4x - 21 = 0
6x - 21 = 0
6x = 21
x=3.5
4 0
3 years ago
What is the midpoint between -2-3i and 3+9i
Svetlanka [38]

Answer:

1/2 + 3i is the midpoint between -2-3i and 3+9i.

Step-by-step explanation:

Given the complex number

  • -2-3i
  • 3+9i

The formula to find the midpoint of two complex number (a + bi) and (c + di) is:

M=\frac{\left(a+c\right)}{2}+\frac{\left(b+d\right)i}{2}

M=\frac{\left(-2+3\right)}{2}+\frac{\left(-3+\left(9\right)\right)i}{2}

M=\frac{-2+3+\left(-3+9\right)i}{2}

M=\frac{1+6i}{2}

M=\frac{1}{2}+3i

Therefore, 1/2 + 3i is the midpoint between -2-3i and 3+9i.

3 0
3 years ago
How do u get the area of a circle?
galina1969 [7]

Answer: πr^2

Step-by-step explanation:

π is pie which is about 3.14

but you need to find the radius and square it is multiply it by itself (Example radius = 2 so 2x2=4)

then multiply the radius squared by π(pie) which is 3.14 or use a calculator.

7 0
3 years ago
Read 2 more answers
120 times 1/2<br>Do not divide, whole number times fraction.​
andreyandreev [35.5K]

Answer:

60

Step-by-step explanation:

write 120 like this: 120/2

Then just multiply the numerators.

Which gets you 120/2.

Then change it it to a mixed fraction which is 60.

7 0
3 years ago
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