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Makovka662 [10]
2 years ago
6

Please answer this correctly without making mistakes

Mathematics
1 answer:
morpeh [17]2 years ago
4 0

Answer:

2nd one is corect

60% is 93.49$ but u are getting 100$ discount so 2nd is ans

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Evaluate the expression 7b – 5d if b = 6 and d= 5.
NeX [460]

Answer:

17

Step-by-step explanation:

You plug the variables in into their respective location, resulting in

7(6) - 5(5).

Now, you just multiply, getting

42 - 25

42 - 25 is 17

Hope this helped! Ask me if you have any questions!

ps accepting brainliest ;)

5 0
3 years ago
Read 2 more answers
A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i what is the students mistakes
Rufina [12.5K]

Answer:

1. In the multiplication of the imaginary parts, the student forgot to square of i. OR

2. The student has only multiplied the real parts and the imaginary parts.

Correct value =22+7i.

Step-by-step explanation:

The given expression is

(4+5i)(3-2i)

A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.

Student's mistake can be either 1 or second:

1. In the multiplication of the imaginary parts, the student forgot to square of i.

2. The student has only multiplied the real parts and the imaginary parts.

(4+5i)(3-2i)=4\times 3+5\times (-2)i=12-10i

Which is not correct. The correct steps are shown below.

Using distributive property, we get

4(3-2i)+5i(3-2i)

4(3)+4(-2i)+5i(3)+5i(-2i)

12-8i+15i-10i^2

12+7i-10(-1)       [\because i^2=-1]

12+7i+10

22+7i

Therefore, the correct value of (4+5i)(3-2i) is 22+7i.

4 0
3 years ago
Help help help help
deff fn [24]

Answer:

b = 12

Step-by-step explanation:

b/3 + 4 = 8

subtract 4 on both sides

b/3 = 4

multiply 3 with 4

b = 12

4 0
2 years ago
Help I need it I’m almost done
sesenic [268]

Answer:

E

Step-by-step explanation:

3 0
3 years ago
Kevin weighed 200 pounds when he started his diet and lost 26 pounds. What percent of his original weight did Kevin lose?
Whitepunk [10]
The answer is C...........................
3 0
3 years ago
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