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3 years ago

PLEASE HELP ILL GIVE BRAINLIEST !!! 100 POINTS !! NO FAKE ANSWERS !

Mathematics

2 answers:

Molodets [167]3 years ago

8 0

Answer:

10-5i

Step-by-step explanation:

Conjugate is the change of sign

so I changed the + sign to -

svet-max [94.6K]3 years ago

6 0

Answer:

20.

Given, complex number is 10+5i .

We need to find sum of the given complex number and its conjugate. The conjugate of 10+5i is 10-5i. Therefore, the sum will be 10+5i+10−5i=20.

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Sold the equation. Round to the nearest hundredth. <br><br>17 · <img src="https://tex.z-dn.net/?f=1.8%5E%7B-x%2B7%7D%20%3D%205"

svetlana [45]

Answer:

Final answer is approx x=4.26.

Step-by-step explanation:

Given equation is $1.8^{-x+7} = 5$

Now we need to solve equation $1.8^{-x+7} = 5$ and round to the nearest hundredth.

$1.8^{-x+7} = 5$

$\log(1.8^{-x+7}) = \log(5)$

$(-x+7)\log(1.8) = \log(5)$

$(-x+7) = \frac{\log(5)}{\log(1.8)}$

$(-x+7) = \frac{0.698970004336}{0.255272505103}$

$-x+7 = 2.73813274192$

$-x = 2.73813274192-7$

$-x =−4.26186725808$

$x =4.26186725808$

Round to the nearest hundredth.

Hence final answer is approx x=4.26.

4 0

3 years ago

Select the correct answer

tatuchka [14]

Answer:

Step-by-step explanation:

A real interest rate is an interest rate that has been adjusted to remove the effects of inflation to reflect the real cost of funds to the borrower and the real yield to the lender or to an investor. A nominal interest rate refers to the interest rate before taking inflation into account.

7 0

3 years ago

Read 2 more answers

Jada has 12 library books checked out and Han has 0.2 less than

Nataly_w [17]

Answer: 12 - 4 = 8

Step-by-step explanation:

6 0

3 years ago

Solve the inequality <br> a^2(a-4)(a+3)>0

Marysya12 [62]

Use math papa it’s a good thing it’s on the browser