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
Zigmanuir [339]
3 years ago
5

2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0
<span>2r2 + 3s3 − r2 + 4t2 − r2
</span>
= 19
You might be interested in
HELP ME SUPPER FAST PLEASE​
kari74 [83]

Answer:

A) x<-1

Step-by-step explanation:

As the circle is not filled in, we know that the inequality must be > or <.

As the line is to the left of -1 (or lower than it). We know that x must be less than -1

8 0
3 years ago
EASY MATH PLEASE HELP!!
blsea [12.9K]
The answer is A. If there are 3 thirds (1/3s) per yard and there are 6 yards, 3*6=18. Because the last cut will make two 1/3-yard segments, the answer is 17 cuts and not 18.
3 0
3 years ago
Read 2 more answers
Is the answer 2 to this question?
iragen [17]

Answer:

its 8

Step-by-step explanation:

use ratio solution ..

2 shampoo : 9 water

8 shampoo : 36 water

9x4 = 36

same goes too shampoo.. it needs to be multiplied with 4 as to get 36 water u multiplied 9 with 4

6 0
3 years ago
Read 2 more answers
A small lawnmower company produced 1,500 lawnmowers in 2008. In an effort to determine how maintenance-free these units were, th
ikadub [295]

Answer:

The 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the average using the finite correction factor is:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}

The information provided is:

N=1500\\n=183\\\sigma=1.47\\\bar x=3.3

The critical value of <em>z</em> for 95% confidence level is,

<em>z</em> = 1.96

Compute the 95% confidence interval for the average number of years until the first major repair as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\cdot\sqrt{\frac{N-n}{N-1}}

     =3.3\pm 1.96\times\frac{1.47}{\sqrt{183}}\times\sqrt{\frac{1500-183}{1500-1}}\\\\=3.3\pm 0.19964\\\\=(3.10036, 3.49964)\\\\\approx (3.1, 3.5)

Thus, the 95% confidence interval for the average number of years until the first major repair is (3.1, 3.5).

7 0
3 years ago
What is this in simplest form?
Norma-Jean [14]

Answer:

1/4

Step-by-step explanation

you divide 25 divided by 25 the also divide 100 divided by 25 and u get 1/4

7 0
3 years ago
Read 2 more answers
Other questions:
  • a sound wave travels through iron at a rate of 5120m/s. at what rate does the sound wave travels in km/h?
    11·1 answer
  • Which choice is a good estimate for the equation of the line below?
    12·2 answers
  • An article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the
    13·1 answer
  • The population of a city has increased by
    13·1 answer
  • The frist three terms of a geometric sequence are as follows 80,40,20
    12·1 answer
  • In August 2012, tropical storm Isaac formed in the Caribbean and was headed for the Gulf of Mexico. There was an initial probabi
    14·1 answer
  • Please help me with this math problem! :(
    15·2 answers
  • Create a system of equations with a solution of (4,1)
    7·1 answer
  • ANSWER ASAP look at pic and answer #18
    11·2 answers
  • EXTRA POINTS ASAP
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!