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
stellarik [79]
3 years ago
14

The value -1 is a solution for x^2 - 6x + 5 = 0 True or False?

Mathematics
1 answer:
solmaris [256]3 years ago
3 0
False -1 is not a solution.
You might be interested in
Seven plus five times a number is gteater than or equal to negative 9​
zubka84 [21]

Step-by-step explanation:

7+5(x) ( between here write the greater than or equal to sign) -9

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%283%20%2B%20a%29%7D%7B3%7D%20%20%5Cleqslant%20%20%5Cfrac%7Bz%28a%20-%201%29%20%
Sindrei [870]
A= 15+z+ square root 17(z+15)/ z-2
z=2a^2/(a-1)^2 + 30a/(a-1)^2 - 15/(a-1)^2
6 0
3 years ago
Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you replace t
34kurt

Answer:

The probability is 0.0775

The expected value is 4.75 clubs

The standard deviation is 1.8875 clubs

Step-by-step explanation:

The variable X follows a binomial distribution, because we have n identical and independent events (19 cards) with a probability p of success and 1-p of fail (there is a probability of 1/4 to be club and 3/4 to be diamond, heart or spade). Then, the probability that x of the n cards are club is:

P(x)=\frac{n!}{x!(n-x)!}*p^{x}*(1-p)^{n-x}\\P(x)=\frac{19!}{x!(19-x)!}*0.25^{x}*(0.75)^{19-x}

So, the probability P of drawing at least 8 clubs is:

P = P(8) + P(9) + P(10) + ... + P(18) + P(19)

Replacing, the values of x, from 8 to 19, on the equation above, we get:

P = 0.0775

Additionally, the expected value E(x) and standard deviationS(x) for this distribution is given by:

E(x)=np = 19(0.25) = 4.75

S(x)=\sqrt{np(1-p)} =\sqrt{19(0.25)(0.75)} =1.8875

8 0
3 years ago
Looking to talk to some girl
chubhunter [2.5K]

Answer:

Wrong website

Step-by-step explanation:

yeeeeeeet

5 0
3 years ago
Read 2 more answers
Printing a newsletter cost $1.50 per copy plus $450 in printers fee. The copies are sold for $3 each. How many copies of the new
e-lub [12.9K]
1.50x + 450 = 3x
450 = 3x - 1.50x
450 = 1.50x
450/1.50 = x
300 = x

300 copies must be sold to break even
6 0
3 years ago
Read 2 more answers
Other questions:
  • A spherical balloon is inflated with gas at the rate of 300 cubic centimeters per minute. How fast is the radius of the balloon
    11·1 answer
  • A classroom fish tank contains x black mollies. The tank contains 8 times as many glowlight a tetras as black mollies. enter an
    15·1 answer
  • The sign of the product of -350 and 89 is
    12·1 answer
  • raj has 16 cups of flour he uses 3 1/2 cups to make bread and 4 3/4 cups to make muffins how many coups of flour does raj have l
    12·2 answers
  • Suppose A is a positive real number and mA is the average value of (sin(Ax))3 on the
    9·1 answer
  • Someone help quick!!!
    9·2 answers
  • Total principal in both accounts​
    12·1 answer
  • Help me figure this out
    13·1 answer
  • Can anyone help with this?
    10·1 answer
  • If a bank represents deposits with positive numbers and withdrawals as negative numbers, what could 10 + (-60) represent?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!