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Naya [18.7K]
3 years ago
10

What is the value of the expression -2^2+4x(-3) when x= -3

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0
It will be
(-2)^2+4*(-3)(-3) =40
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Please help this is kind of confusing
nikdorinn [45]

Answer:

x=45

Step-by-step explanation:

Because angles that are vertical to each other are congruent that means 2x+6=96

    -6  -6  

2x=90

2(45)=90

8 0
2 years ago
Did I do this right ? I feel like I didn't do it right, if I didn't can you help me figure it out please :((?
IrinaK [193]
16,000,000/2.25 =
7,111,111.11 milligrams of ozone PER DAY
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7,111,111.11 * 7 =
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49,777,778 milligrams of ozone per week
3 0
3 years ago
Omar, Hala and Lujain got paid a total of $240 for cleaning neighborhood cars. They split the money in the ratio of 5: 9: 10. Ho
Levart [38]

Answer:

Total amount Omar earn = $120

Step-by-step explanation:

Given:

Total amount Omar, Hala and Lujain got paid = $240

Ratio of money Omar, Hala and Lujain got paid = 5:9:10

Find:

Total amount Omar earn

Computation:

Total amount Omar earn = [Total amount Omar, Hala and Lujain got paid][Omar'ratio / Total ratio]

Total amount Omar earn = [240][5 / (5+9+10)]

Total amount Omar earn = [240][5 / (24)]

Total amount Omar earn = [24][5]

Total amount Omar earn = $120

5 0
2 years ago
In 5 years' time, Kate's father will be 3 times as old as Kate. Four years ago, her father
Brut [27]

Answer: Kate = 40/3  Her father = 50

Step-by-step explanation:

Let Kate's age in the present be K

And Kate's father's age in the present be F

3(K+5) = F+5

6(K-6) = F-6

Rearrange the first equation to get

3K+15 = F+5

3K+10 = F

Substitute that into the second question

6K-36 = 3K+10-6

3K = 40

K = 40/3

So F = 3*40/3+10 = 50

8 0
2 years ago
Pls help me with this
Nady [450]

Answer:

Step-by-step explanation:

9. the set containing all objects or elements and of which all other sets are subsets.

10. complement --> the amount in only one of teh sets

intersection --> the amount in both sets

11. 14 or -14

13. 46 1/2

14. 2 31/120

15. 1100% profit

16. 1200 gm

17. cube root of 7?

18. 6000 per year

6 0
1 year ago
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