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
Morgarella [4.7K]
3 years ago
11

Is (-1,2) a solution of the graphed system if inequalities ​

Mathematics
1 answer:
Zigmanuir [339]3 years ago
7 0

Yes (I guess)

(-1, 2) Lies on a line so im guessing it is...

You might be interested in
Which could be the value of the third side of a triangle with sides 3 and 4? A. 3 B. 7 C. 12 D. 20
LiRa [457]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
the ratio of red marbles to blue marbles in a bag is 2 to 3 .which of the following could be the number of red and blue marbles
Nataliya [291]

Answer

Picture? what is the following

Step-by-step explanation:

8 0
3 years ago
You deposit $400 in an account earning 2% interest compounded annually. How much will you have in the account in 20 years?
iVinArrow [24]

Answer:

Approximately $594.38

Step-by-step explanation:

Use the formula: y = a(1 + r)^t
a is the initial amount
r is the percent of interest in decimal form
t is the time in years
y is the money after t years

Substitute the values given in the problem into the equation:
400(1+0.02)^20
Use a calculator or solve manually
Around 594.38

6 0
2 years ago
Use the table of systolic blood pressures (in mm Hg) in each arm
e-lub [12.9K]

Answer:

The 90% confidence interval would be given by (63.330;81.070)

Step-by-step explanation:

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Let put some notation

x=left arm , y = right arm

x: 175 169 182 146 144

y: 102 101 94 79 79

Since the Confidence is 0.90 or 90%, the value of a = 0.1 and a/2= 0.05we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.05,4)".And we see that ta/2= 2.13

3 0
2 years ago
Put the following lengths in ascending order, 900cm, 8.9m, 895cm, 9.1m, 12000mm, 0.0092km.
matrenka [14]

Answer: 8.9 m, 895 cm, 900 cm, 9.1 m, 0.0092 km, 12000 mm

===========================================================

Explanation:

To be able to compare these various measurements, all of them must be the same unit. Let's convert each measurement to meters. If the measurement is already in meters, then we'll move onto the next measurement.

Here are some useful conversion factors

  • 1 m = 100 cm
  • 1 m = 1000 mm
  • 1 km = 1000 m

With those conversion factors in mind, we get the following conversions:

  • 900 cm = (900 cm)*(1 m/100 cm) = (900/100) m = 9 m
  • 8.9 m = already in meters, moving on
  • 895 cm = 8.95 meters; divide by 100 to convert from cm to meters as shown above
  • 9.1 m = already in meters, moving on
  • 12000 mm = (12000 mm)*(1 m/1000 mm) = (12000/1000) m = 12 m
  • 0.0092 km = (0.0092 km)*(1000 m/1 km) = (0.0092*1000) m = 9.2 m

Here is the summary of the conversions:

  • 900 cm = 9 m
  • 8.9 m = 8.9 m
  • 895 cm = 8.95 m
  • 9.1 m = 9.1 m
  • 12000 mm = 12 m
  • 0.0092 km = 9.2 m

The original list of

{900cm, 8.9m, 895cm, 9.1m, 12000mm, 0.0092km}

becomes this equivalent list

{9 m, 8.9 m, 8.95 m, 9.1 m, 12 m, 9.2 m}

in that exact order.

After converting everything to meters, we can then sort the values from smallest to largest. Doing so gets us this sorted list of

{8.9 m, 8.95 m, 9 m, 9.1 m, 9.2 m, 12 m}

Then you convert back each measurement to its original form

{8.9 m, 895 cm, 900 cm, 9.1 m, 0.0092 km, 12000 mm}

which is the final answer.

8 0
3 years ago
Read 2 more answers
Other questions:
  • 16% of 242 = ? <br> Please help me solve this
    14·2 answers
  • Suppose an investment of $6,200 doubles in value every 13 years. How much is the investment worth after 78 years?
    7·2 answers
  • there are three source of resistance in parallel circuit. Two of them are rated at 20 ohms, the other at 10 ohms. What is the ci
    15·1 answer
  • Select all that apply
    13·2 answers
  • 2 to the power of 46 is how many times as many as 2 to the power of 42
    8·2 answers
  • Tiffany is filling her daughter pool with water from a hose.She can fill the pool at a rate of 1/10 gallons per second. Choose a
    9·1 answer
  • N the diagram below, k· l AC intersects nBDE at B. Choose Tr u e or False for each statement.
    8·1 answer
  • Find the value of x <br> x°<br> 100°<br> 135°
    14·1 answer
  • What is the product of f(3) and g(–4)?<br> f(x) = 6x + 3<br> g(x) = 3x – 2<br> HELP!!
    12·2 answers
  • ANS WER AS SOON AS POSSIBLE <br> AND I WILL MARK U AS BRAINLIST
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!