For the addition problem 1/4 would turn into 2/8 and the 3/8 would stay the same therefore it would be 2/8 + 3/8 =5/8. Then for the subtraction problem 1/4 would turn into 2/8 and 3/8 would stay the same therefore it would be 2/8 - 3/8 =1/8

7 0

3 years ago

A map has a scale of 1in 25mi. Two cities are 175mi apart. How far apart are they on the map?

Bond [772]

Answer:

I believe the answer is 7inches I did 175 ÷ 25=7 since 1in. equals 25 mi. it equals 7 inches

Step-by-step explanation:

6 0

3 years ago

Evaluate expression -16 squared and write the result in form a + bi

coldgirl [10]

Writing it in the form of a+bi we get 0+4i

Step-by-step explanation:

We need to evaluate expression -16 squared and write the result in form a+bi

The given expression is: $\sqrt{-16}$

We know that $\sqrt{-1}=i$

We know that 16= 4x4 = 4^2

Putting values:

$\sqrt{-16}=\sqrt{-1}\sqrt{16}\\=\sqrt{4^2}i\\=4i$

So, Writing it in the form of a+bi a=0 and b=4 so, 0+4i

Keywords: Complex Numbers

Learn more about Complex Numbers at:

#learnwithBrainly

8 0

3 years ago