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Alekssandra [29.7K]
2 years ago
10

Plz help me. answer all these questions.

Mathematics
2 answers:
Greeley [361]2 years ago
6 0

Answer:

picture wont load

Step-by-step explanation:

Natasha2012 [34]2 years ago
4 0
3. 5x-2
4. -3x+15
5. -4x-28
6. -4x+ 12
7. 8x+ 40
To find the answer you need to multiply the number outside of the parentheses by each number/variable in the parentheses.
For example, number 9 says 8(-x-6) you would have to "distribute" the 8 out the both the variable and the number.
8 multiplied by -x is -8x because a negative times a positive is a negative and 8 multiplied by -6 is -48. So there for your answer would be -8x-48

You have to make sure to also remember the multiplying rules:
positive times a positive= positive
positive times a negative= negative
negative times a negative= positive
( i hope this helped! i don't do all of them bc there is quite a lot but yeah!)
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Please help, will give brainliest to correct answer.
Harrizon [31]
The answer is f(x)=16(1/4)^x
7 0
2 years ago
Mal spends 7 hours in school each day. Her lunch period is 1 hour long, and she spends a
Alex787 [66]

Answer:

z = 5*(1/2)

z = 5/10

---

time switching classes:

w = 7/10

---

y - 6x - z - w = 0

6x = y - z - w

x = (y - z - w)/6

x = (76/10 - 5/10 - 7/10)/6

x = (76 - 5 - 7)/(10*6)

x = (64)/(10*6)

x = (2*2*2*2*2*2)/(2*5*2*3)

x = (2*2*2*2)/(5*3)

x = 16/15

x = 1.0666666666

---

check:

y = 7 + 3/5

y = 7.6

z = 1/2

z = 0.5

w = 7/10

w = 0.7

y - 6x - z - w = 0

6x = y - z - w

x = (y - z - w)/6

x = (7.6 - 0.5 - 0.7)/6

x = 1.0666666666

---

answer:

z = 5*(1/2)

z = 5/10

---

time switching classes:

w = 7/10

---

y - 6x - z - w = 0

6x = y - z - w

x = (y - z - w)/6

x = (76/10 - 5/10 - 7/10)/6

x = (76 - 5 - 7)/(10*6)

x = (64)/(10*6)

x = (2*2*2*2*2*2)/(2*5*2*3)

x = (2*2*2*2)/(5*3)

x = 16/15

x = 1.0666666666

---

check:

y = 7 + 3/5

y = 7.6

z = 1/2

z = 0.5

w = 7/10

w = 0.7

y - 6x - z - w = 0

6x = y - z - w

x = (y - z - w)/6

x = (7.6 - 0.5 - 0.7)/6

x = 1.0666666666

---

answer:

each class is 1.07 hours

Step-by-step explanation:

8 0
2 years ago
Use the distributive property to find two expressions that are equivalent to 7(3x - 4)
ehidna [41]
I could only figure out one... sorry! Good luck

The answer is: 21x-28
7 0
3 years ago
What is the product of -5 and 8?<br> -40<br> О -13<br> 013<br> О 40
Alexeev081 [22]

Answer:

13

Step-by-step explanation:

this would be 13

8 0
3 years ago
Read 2 more answers
If a person were to walk around the base of a
alexira [117]

Answer:

They walked about 125.6 meters

Step-by-step explanation:

40 is the diameter and just multiply it by 3.14

8 0
2 years ago
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