Ask question

Ask question

All categories

2 years ago

12

Steven got 4 correct answers for every incorrect answer. If Steven got 20 answers correct, How many answers did he get incorrect

?

1 answer:

Feliz [49]2 years ago

4 0

Answer:

5

Step-by-step explanation:

because 5x4 is 25.....

You might be interested in

Find the multiplicative inverse of 3 − 2i. Verify that your solution is corect by confirming that the product of

leonid [27]

Answer:

$\frac{3}{13} + \frac{2i}{13}$

Step-by-step explanation:

The multiplicative inverse of a complex number y is the complex number z such that (y)(z) = 1

So for this problem we need to find a number z such that

(3 - 2i) ( z ) = 1

If we take z = $\frac{1}{3-2i}$

We have that

$(3- 2i)\frac{1}{3-2i} = 1$ would be the multiplicative inverse of 3 - 2i

But remember that 2i = √-2 so we can rationalize the denominator of this complex number

$\frac{1}{3-2i } (\frac{3+2i}{3+2i } )=\frac{3+2i}{9-(4i^{2} )} =\frac{3+2i}{9-4(-1)} =\frac{3+2i}{13}$

Thus, the multiplicative inverse would be $\frac{3}{13} + \frac{2i}{13}$

The problem asks us to verify this by multiplying both numbers to see that the answer is 1:

Let's multiplicate this number by 3 - 2i to confirm:

$(3-2i)(\frac{3+2i}{13}) = \frac{9-4i^{2} }{13} =\frac{9-4(-1)}{13}= \frac{9+4}{13} = \frac{13}{13}= 1$

Thus, the number we found is indeed the multiplicative inverse of 3 - 2i

4 0

2 years ago

REWTJGFX ANSWER QUICK BRAINLIEST I WILL GIVE RSZYDXTGUCFYHKVJ

melamori03 [73]

Answer:

0.91666666666

Step-by-step explanation:

4 0

2 years ago

Greg has a table that is 3.75 meters in length. He wants to make a tablecloth that is 20 centimeters longer on each end than the

kap26 [50]

Answer:

it is (3.75 times 100/1) then add twenty

Step-by-step explanation:

yeahhhhh

7 0

3 years ago

Evaluate 2-(-4)+3+(-6)-(-2)

zysi [14]

Answer:

5

Step-by-step explanation:

7 0

2 years ago

The ratio of two numbers is 8/1 and the difference of the numbers is 280. What is the larger of the two numbers?

Gala2k [10]

<h2>The correct answer is 320.</h2>

7 0

2 years ago