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nekit [7.7K]
3 years ago
8

For which of the following is x=-5 a solution. Select all that apply

Mathematics
1 answer:
mafiozo [28]3 years ago
6 0

I think the answer is 3 but I’m not sure.

Hope this helps!

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You must use the Substitution method
elena-14-01-66 [18.8K]
3x+2y=5w is your answer so your main/real answer is 5w
3 0
3 years ago
Mrs. Lee works 4y hours each day from Monday to Friday. She works (4y-4) hours on Saturday.
7nadin3 [17]

Answer:

24y-4

Step-by-step explanation:

4y*5=20y

20y+4y-4= 24y-4

5 0
2 years ago
For a party , Mr and Mrs. Kemper made 7.25. gallons of fruit punch.How many quarts of punch did they make.
lina2011 [118]
There are 29 quarts of fruit punch in 7.25 gallons of fruit punch.
4 0
3 years ago
Simplify the following expression below:
IrinaK [193]
So, 4/3 - 2i

4/3 - 2i = 12/13 + i8/13

multiply by the conjugate: 
3 + 2i/3 + 2i
= 4(3 + 2i)/(3 - 2i) (3 + 2i)
(3 - 2i) (3 + 2i) = 13

(3 - 2i) (3 + 2i)

apply complex arithmetic rule: (a + bi) (a - bi) = a^2 + b^2
a = 3, b =  - 2
= 3^2 + (- 2)^2

refine: = 13
= 4(3 + 2i)/13

distribute parentheses:
a(b + c) = ab + ac
a = 4, b = 3, c = 2i
= 4(3) + 4(2i)

Simplify:
4(3) + 4(2i)
12    +    8i


4(3) + 4(2i)
Multiply the numbers: 4(3) = 12
= 12 + 2(4i)

Multiply the numbers: 4(2) = 8
= 12 + 8i


   12 + 8i
= 12 + 8i/13

Group the real par, and the imaginary part of the complex numbers:


Your answer is: 12/13 + 8i/13





Hope that helps!!!
7 0
2 years ago
Ashley will tend a car for the weekend.she can choose one of two plans.the first plan has an initial fee of $49.96 and cost an a
Rom4ik [11]
First, you multiply $55.96 by $0.12 and you get $6.7152. Then, multiply $49.96 by $0.14 and you get $6.9944. If you subtract $69944-$6.7152 you get your answer which is $0.2792.
5 0
3 years ago
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