3 years ago

Which of the following expressions are equivalent to -(-8/-4)

Mathematics

1 answer:

Rus_ich [418]3 years ago

8 0

Answer:

None of the above

Step-by-step explanation:

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They is 1440 cubic inches and the area of the base is 144 what is the hight

HACTEHA [7]

To find the volume of something, you do the area times the height. In this case you already know the volume so you solve it like this:

(x represents the height since you don't know the value)

1440= 144 * x

1440 = 144x

1440/144= 144x/144

10 = x

Your height is 10:)

5 0

3 years ago

Por favor resuelva este problema con sustitución.

madam [21]

Answer:

x - 2y - 5= 0

i think is the answer for number 1 i hope it is

5 0

2 years ago

Identify the quotient in the form a + bi. HELP ASAP PLEASE!!

Step2247 [10]

Solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Step-by-step explanation:

We need to solve the expression: $\frac{4-5i}{2+3i}$

Multiplying and dividing by 2-3i

$=\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}\\=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,know\,\, i^2=-1\\=\frac{8-12i-10i+15(-1)}{4-9(-1)}\\=\frac{8-15-12i-10i}{4+9}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}$