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Juliette [100K]
3 years ago
6

Help plz nd thank you (true or false questions) 1.) -19-2+54<12x97+-40 2.) x+1=1+x

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0
Number one is 33 < 1118 so true and number two is infinite solutions so it would be true as well
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In which situation do the quantities combine to make 0?
SOVA2 [1]

Answer: A

Step-by-step explanation: If he is in debt 10$ and later pays back the 10$ he is at 0 total debt (Equation: -10x + 10x = 0

(Debt means : he owes money).   (Brainliest Please)

4 0
3 years ago
Help!’!!!!!!!!! And thanksss
Oksanka [162]

Answer:

9/20 > 11/25

Step-by-step explanation:

11/25      

= 44/100

9/20

= 45/100

45/100 > 44/100

Therefore,

9/20 is greater than 11/25

3 0
2 years ago
Read 2 more answers
Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college. You survey 10
neonofarm [45]

Answer: 1.460

Step-by-step explanation:

Given : Researchers report that on average freshman who live on campus gain 15 pounds during their first year in college.

Let \mu represents the population mean .

Then, the set of hypothesis will be:-

H_0: \mu=15

H_a:\mu\neq15

We assume that this is normal distribution.

Sample size : n = 10, which is a small sample (n<30) ,s o we use t-test.

Sample mean : \overliene{x}=16.2\ lbs

Standard deviation : \sigma=2.6

The test statistic for population mean for small sample is given by :-

t=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

t=\dfrac{16.2-15}{\dfrac{2.6}{\sqrt{10}}}=1.45951276623\approx1.460

Hence , the value of test statistic = 1.460

4 0
2 years ago
best rentals charges a daily fee plus a mileage fee for renting its cars. barney was charged $159 for 3 days and 300 miles, whil
Vesnalui [34]

$289 is better because its cheaper per mile

6 0
2 years ago
What is the perimeter of ^PQR with vertices P(-2,9) Q(7,-3) and R(-2,-3) in the coordinate plane?
e-lub [12.9K]
Using the distance formula we can determine the perimeter of PQR.

Distance formula: d=√(x-x1)^2+(y-y1)^2
distance of PR: √(-2+2)^2+(9+3)^2= 12
distance of QR: √(7+2)^2+(-3+3)^2=9
distance of PQ: √(7+2)^2+(-3-9)^2= 15

Perimeter: 12+9+15=36
5 0
3 years ago
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