answer.
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
vodomira [7]
1 year ago
15

Rewrite each expression as a sum. 12. - 8x2 + 3xy - 9x - 3 13. 2ab -- 5ab2 - 9a2b

Mathematics
1 answer:
Natali [406]1 year ago
8 0
13 ). 2ab + 5ab x 2 - 18ab

2ab + 10ab - 18ab

- 6ab

Answer= - 6ab
You might be interested in
Elton just bought a new flash drive for his computer. He read in the literature that 7 flash drives can hold 1792 megabytes of d
Rufina [12.5K]

Answer:

1280 megabytes

Step-by-step explanation:

Take 1792 and divide that by 7 to get how many megabytes are in 1 flash drive. Then multiply the answer by 5 to get the number of megabytes that are in 5 flash drives.

5 0
1 year ago
In a certain kingdom, the demand function for rye bread was q = 381 − 3p and the supply function was q = 5 + 7p, where p is the
beks73 [17]

Answer:

  8 zlotys

Step-by-step explanation:

At Z32 per loaf, the demand will be ...

  q = 381 -3(32) = 285 . . . . loaves

In order to produce 285 loaves, bakers must enjoy a price of ...

  285 = 5 +7p

  280/7 = p = 40 . . . . . zlotys per loaf

Since the loaves are sold for Z32, and bakers are expecting to be paid Z40, the subsidy they receive must be ...

  Z40 -Z32 = Z8

The subsidy per loaf would have to be 8 zlotys.

8 0
2 years ago
Bobby's investment of $225,000 loses value at a rate of 3% per year. Use an exponential function to find the value of the invest
AleksAgata [21]

We have been given that Bobby's investment of $225,000 loses value at a rate of 3% per year. We are asked to find the value of the investment after 10 years.

We will us exponential decay function to solve our given problem.

We know that an exponential function is in form y=a\cdot (1-r)^x, where,

y = Final amount,

a = Initial amount,

r = Decay rate in decimal form,

x = Time.

Let us convert 3% into decimal.

3\%=\frac{3}{100}=0.03

Upon substituting a=\$225,000, r=0.03 and x=10, we will get:

y=\$225,000(1-0.03)^{10}

y=\$225,000(0.97)^{10}

y=\$225,000(0.7374241268949283)

y=\$165,920.4285513588675

Upon rounding to nearest dollar, we will get;

y\approx \$165,920

Therefore, the value of the investment after 10 years would be \$165,920.

5 0
2 years ago
Which rule should be applied to reflect f(x)=x^3 over the y-axis?
Anna11 [10]
To make a reflection over the y axis, make the whole equation negative. 
The new equation should look like this:

f(x) = -x^3
7 0
1 year ago
Read 2 more answers
Tootsie rolls cost $0.02 each and Peppermint Patties cost $0.05 each. If you have $1.00, how many of each
Julli [10]

Answer:

With $1 you can buy 50 Tootsie rolls, and 20 Peppermint Patties.

Step-by-step explanation:

100 divided by 2 = 50

100 divided by 5 = 20

4 0
1 year ago
Read 2 more answers
Other questions:
  • Tanya’s rotation maps point K(24, –15) to K’(–15, –24). Which describes the rotation?
    5·2 answers
  • How do you solve the equation 2/7m-1/7=3/14
    8·1 answer
  • In Rhode Island, sales tax is 7.0%. What is the tax on items that total $140.88 before tax?
    9·2 answers
  • Una diseñadora de modas que confecciona trajes de noche, tarda 3 horas en cortar y 2 horas en coser cada vestido de fiesta. Para
    13·1 answer
  • The variance Var(x) for the binomial distribution is given by equation :
    5·1 answer
  • On a December day, the probability of snow is 0.30. The probability of a "cold" day is 0.50. The probability of snow and "cold"
    6·1 answer
  • A random sample from a normal population is obtained, and the data are given below. Find a 90% confidence interval for . 114 157
    12·1 answer
  • Refer to the data set of 20 randomly selected presidents given below. Treat the data as a sample and find the proportion of pres
    7·2 answers
  • A consumer protection agency is testing a sample of cans of tomato soup from a company. If they find evidence that the average l
    13·1 answer
  • One side of a right triangle is known to be 12 cm long and the opposite angle is measured as 30°, with a possible error of ±1°.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!