1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weeeeeb [17]
3 years ago
13

How do i solve this

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
8 0
Replace g for -2 and h for 5.

(2(-2) + 9(5) -5) - (6(-2) - 4(5) +2)

Taking this one at a time,
2(-2) = -4, and 9(5) = 45.
6(-2) = -12 and -4(5) = -20

(-4 + 45 - 5) - (- 12 - 20 +2)

Let’s distribute the negative symbol to the right side.

(-4 + 45 - 5) + (12 + 20 - 2)

Then, we solve!
(-4 + 40) + (12 + 18)

(36) + (30)

= 66!
solong [7]3 years ago
8 0

Answer:

64

Step-by-step explanation:

Okay, here it goes:

Where there is a g you insert -2 and where there is an h you insert 5

(2(-2)+9(5)-5)-(6(-2)-4(5)+2)

If two numbers are side-by-side with no other sign between them, you multiply

(-4+45-5)-(6(-2)-4(5)+2)

(-4+45-5)-(-12-20+4)

There is a subtraction sign between these equations. That means you must distribute the negative sign to the equation on the right.

Remember:

  • Negative × Negative = Positive
  • Negative × Positive = Negative
  • Positive × Positive = Positive

-4+45-5+12+20-4

Now just add them together. I recommend going left to right.

-4+45=41

41-5=36

36+12=48

48+20=68

68-4=64

You might be interested in
Round 525,600 to the nearest ten thousand
Tatiana [17]

Answer:530,000

Step-by-step explanation: ten thousand is the 2 so you would round the number to the right up or down and it is 5 so you round up

4 0
3 years ago
Find the measure of angle y, 38,41,19
astra-53 [7]
If this is DMS then the answer is 38.68861111 degrees
8 0
2 years ago
Two mechanics worked on a car. The first mechanic charged $65 per hour, and the second mechanic charged $90 per hour. The mechan
Katena32 [7]

Answer:

First mechanic worked 20 hours and second mechanic worked 5 hours

Step-by-step explanation:

Let the number of hours the first mechanic worked = a

Let the number of hours the second mechanic worked = b

Therefore, we can write 2 equations and then solve them simultaneously:

a+b=25

65a+90b=1750

Rearranging the first equation: a=25-b

and substituting into the second equation to find b:

65(25-b)+90b=1750

1625-65b+90b=1750\\
25b=125\\
b=5

Now sub b=5 into the first equation to find a

a+5=25\\
a=20

Therefore, first mechanic (a) worked 20 hours and second mechanic (b) worked 5 hours

4 0
2 years ago
Let f(x) = x^2 – 81. Find f–1(x). <br> Can someone double-check what I have?
Trava [24]
I hope this helps you



y=x^2-81


x^2=y+81


x=square root of y+81


f^-1 (x)= square root of x+81
5 0
3 years ago
Read 2 more answers
{1+8+27+64+125...} find the next 9 terms
Bogdan [553]

Answer: 216, 343, 512, 729, 1000, 1331, 1728, 2197, 2744

Step-by-step explanation: The terms are the cubes of the numbers 1, 2, 3, 4, 5...

5 0
3 years ago
Read 2 more answers
Other questions:
  • A bus travelled from location A to location B in 90 minutes. Calculate the speed of the bus in km/h​
    13·1 answer
  • How to subtract 35 from 22 11/10?
    5·1 answer
  • amy and her sister are making lemonade for the school dance. their recipe makes 2 quarts of lemonade. if a serving of lemonade i
    13·2 answers
  • How many possible weight's are there between 10 and 40 pounds
    10·2 answers
  • how do you know when the solution of equations is a precise answer and when it is an approximate answer?
    10·2 answers
  • Multiply -1/2 c(4c -2) Please ASAP
    10·1 answer
  • Based in the diagram which statement is true
    12·1 answer
  • #13 Please answer the question
    10·1 answer
  • The state sales tax in one state is 5.5%, or 0.055. The state sales tax in a second state is 6%, or 0.06. How much greater was t
    15·2 answers
  • The temperature in noon was 6 degrees. It dropped 1.2 degrees each hour for the next 12 hours. What was the temperature at midni
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!