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3 years ago

What property of equality is x+3.75=7

Mathematics

1 answer:

andrew11 [14]3 years ago

4 0

3.25 you just subtract 3.75 from 7
Hope this helps!

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3-2i/1+4i include each step necessary in simplifying

Likurg_2 [28]

Answer:

$\frac{3-2i}{1+4i}=\frac{11}{17}-\frac{10}{17}i$

Step-by-step explanation:

$\frac{3-2i}{1+4i}$ <-- Given

$\frac{3-2i}{1+4i}*\frac{1-4i}{1-4i}$ <-- Multiply by the conjugate of the denominator as a factor of 1

$\frac{(3-2i)(1-4i)}{(1+4i)(1-4i)}$

$\frac{(3)(1)+3(-4i)-2i(1)-2i(4i)}{(1)(1)+1(-4i)+4i(1)+4i(-4i)}$ <-- Use the Distributive Property and FOIL

$\frac{3-12i-2i-8i^2}{1-4i+4i-16i^2}$

$\frac{3-10i-8i^2}{1-16i^2}$

$\frac{3-10i-8(-1)}{1-16(-1)}$ <-- Rewrite $i^2$ as $-1$

$\frac{3-10i+8}{1+16}$

$\frac{11-10i}{17}$

$\frac{11}{17}-\frac{10}{17}i$ <-- Rewrite in $a\pm bi$ form

8 0

3 years ago

For a family with 6 children what is the probability that they have exactly one boy and 5 girls

Katen [24]

Answer:

Ok so the probability would be 16%(can be round to)

Step-by-step explanation:

3 0

3 years ago

What is the answer for (1, 1) and (1,9)

Bezzdna [24]

Answer:

9/0

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

On the 1st Jan 2012 Beth invested some money into a bank account.

mixer [17]

Account on 2014 is £17,466 when multipliled by 0.025 (interest per year) it will result to £436.65. So the money she had excluding the interest of the said year is £17,029.35 (17,466 - 436.65).
Going back to 2013, she withdraws £1000. If she has £17,029.35 in 2014, we can add £1000 to get £18, 029.35.If we take 2.5% from £18, 029.35. (18,029.35. x 0.025) the result is £450.73. Excluding the interest of year 2013, the money amounts to £17,578.62 (18,029.35 - 450.73), which is the original invested amount on her bank account from year 2012.

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3 years ago

Model and solve the following equations: 3x +3 = 2x + 7 5x + 2 = 3x = 12

Thepotemich [5.8K]

hope it helps you!!!!!!!!!!

4 0

4 years ago