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
ASHA 777 [7]
3 years ago
9

You cannot use substitution to solve a system that does not have a variable with a coefficient 1 or -1. true or false

Mathematics
1 answer:
artcher [175]3 years ago
5 0
True because it is simple
You might be interested in
Suppose Z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that Z is less than 1
solmaris [256]

Answer:

0.8749

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 0, \sigma = 1

The probability that Z is less than 1.15 is:

This is the pvalue of Z = 1.15, which is 0.8749.

8 0
3 years ago
What are the length and width of a rectangle if the length exceeds the width by 55 inches and the perimeter is 270 ​inches?
astra-53 [7]
Here, P = 2L + 2W, and L=W+55.  Subbing W+55 for L in P = 2L + 2W, we get:

P = 2(W+55) + 2W = 270 in
      2W + 110 + 2W = 270 in, or 4W = 160 in.  Then W=40 in, and L=(40+55)in.
3 0
4 years ago
in geometry. the sum of the lengths of the two legs x and y in a triangle must be greater than the hypotenuse c
meriva
The answer is that the sum of x and y should be less than c
8 0
4 years ago
What is the theoretical probability of rolling two dice and getting an odd number on both of them?
VikaD [51]

Answer:

25%

Step-by-step explanation:

I'm not great at probability but the chances of rolling an odd number on one dice is 50%, so you should have to multiply 0.5 * 0.5 to get 0.25, or a percentage of 25%. Hope this helps :)

4 0
4 years ago
Please help!<br><br> Will mark brainliest!!
ZanzabumX [31]

Answer:

Let m = Number of months

Company A: 60+ 42.95 m

Company B: 25+49.95 m

60+ 42.95 m= 25+49.95 m

Subtract 42.95 from both sides

60 = 25 + 7m

Subtract 25 from both sides

35= 7m

Divide both sides by 7

<u>m = 5</u>

OAmalOHopeO

8 0
3 years ago
Other questions:
  • U.S postal service regulations state that a package can be mailed using parcel post rates is it weighs no more that 70 pounds. W
    9·1 answer
  • How many thirds are there in 75%
    11·1 answer
  • The area of a triangle is 13 square feet. If the base of the triangle measures 4 feet, what is its height?
    7·1 answer
  • If the cube shown is 5 inches on all sides, what is the length of the diagonal, x, of the cube?
    13·1 answer
  • Draw the graph of following function. Y=X²- 2X​
    5·1 answer
  • Will Mark Brainlest helppp plss​
    5·1 answer
  • If 10 sandwiches cost $36.20, how much will 7 sandwiches cost?
    6·1 answer
  • Please help me don't give random link or I'll report
    11·1 answer
  • HELP PLEASE ASAP:&lt;
    11·1 answer
  • points E,F and G are plotted on a number line at -1, 2 and 6 respectively. Find the coordinate o f the point that represents the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!