Answer:
Ø.
Step-by-step explanation:
Given the equation 7x^2 = -14. We are to find the value of x;
7x^2 = -14.
Divide both sides by 7
7x^2/7 = -14/7
x² = -2
Square root both sides
√x² = ±√-2
x = ±√2 i
The value of x is (-√2 i, √2 i)
Since there values is a complex values, hence there is no real solution. The answer is Ø.
Find the y-intercept of the following equation. Simplify your answer.
y = 6x + 10
y-intercept
what is the place value of the 3 in the number 53,490
Answer:
In the thousands place
Answer:
It's the one thousandths place
Identify the mistake and correct it in the work shown for solving the following inequality. 9x + 9 > 12x + 6 -3x > -3 x > 1
Given:
The inequality is
[tex]9x+9>12x+6[/tex]
To find:
The mistake in the given solution and correct it.
Solution:
We have,
[tex]9x+9>12x+6[/tex]
Isolating variable on one side, we get
[tex]9x-12x>6-9[/tex]
[tex]-3x>-3[/tex]
On dividing both sides by -3, we get
[tex]\dfrac{-3x}{-3}<\dfrac{-3}{-3}[/tex]
Because if an inequality is multiplied or divided by a negative number, then the sign of inequality must be changed.
[tex]x<1[/tex]
Therefore, there is a mistake in last step because the sign of inequality remains same after diving it by -3 and the correct solution is [tex]x<1[/tex].
what are postive and negative numbers
Answer:
About Positive and Negative Numbers
Positive numbers are any numbers greater than zero, for example: 1, 2.9, 3.14159, 40000, and 0.0005. ... Negative numbers are less than zero (see the number line for a more complete explanation of this). Similarly, the opposite of any negative number is a positive number.
What is the equation in point-slope form for the line parallel to y=2x+9 that contains J(4,5) ?
Answer:
y-5=2(x-4)
Step-by-step explanation:
Considering the slope intercept form is y=2x+9 and the point is (4,5), you would just need to plug in all the necessary numbers in point-slope form.
Point-slope form:
y-y1=m(x-x1) → y-5=2(x-4)
m represents the slope, which is 2 in this situation.
y1 represents the y coordinate, which is 5 in this situation.
x1 represents the x coordinate, which is 4 in this situation.
which equation gives the rule of this table
Answer:
b
Step-by-step explanation:
mark me as brainliest
the number 3, x, and (x+6) form the first three terms of a geometric sequence with all positive terms. find the possible values of x and the 7th term of the sequence
Answer:
x can be 6 or -3
if x 6 7th term 192
if x -3 7th term 3
What is equivalent to 51/9?
There are three forms of answers for 51/9 and it’s in the image below ↓
Cami said that 32 + 8 x 2 = 34. What mistake did Cami make when evaluating the expression? What is the correct answer?
Answer: 32 + 8 = 40 × 2 = (80) is the correct answer.
Step-by-step equation:
Cami is wrong 34 is not the correct answer. She made the mistake in her multiplying.
What mistake did Cami make when evaluating the expression? Cami divided instead of multiplying.
What is the correct answer? The correct answer is 48. Notice that you first multiply first 8 x 2 and then add 32. Recall that you always multiply and then add.
Given f-1(x) = 3/4x + 2, which equation
represents f(x)?
Factor the expression completely.
x^4y^4 – x^3y
Answer:
x^3 y(xy^3−1)
Answer:
x^3 y(xy^3−1)
Graph the line with the slope -1/2 passing through the point (5, -1)
Answer:
y= -1/2x + 3/2
Step-by-step explanation:
Put (5,-1) into, y-y1=m(x-x1) form.
m= -1/2 (the slope)
y+1= -1/2(x-5)
y+1= -1/2x+5/2
(subtract 1 both sides)
y= -1/2+3/2
Please help!!!! 10 pointss
Answer:
There is nothing here. But talk to me in the comments and i will help in anyway i can.
Step-by-step explanation:
The coefficient is 4/3
No picture/Question.
Please help me.
What is 26^3+75k/4-95.6^7*82 if k=25.6
Answer:
omg that's so hard im still in 8th grade ;-;
When you select a random person, the probability that this person will go to Ches
Tahoe restaurant is 75% (Hint: Review Binomial Probability Distribution).
a. You randomly select 8 people. What is the probability that exactly 3 people
from that group will go to Ches Tahoe restaurant? (You must show the
steps to get the full credit) (15 points)
b. You randomly select 50 people. Use the normal approximation to the binomial
distribution find the probability that at least 35 people will go to Ches Tahoe
restaurant (Hint: mean = np: stand dev = sqrt(npq), where p + y = ?). (No
steps necessary - just write the answer) (5 points)
Answer: a= 0.0231
Step-by-step explanation:
n=8
p=0.75
q=1 - 0.75 = 0.25
(p=x)
p(5) = 8C5 (0.25)^5 (0.75)^8-5
p(5)= 0.0231
Or 2.31%
The probability that exactly 3 people from that group will go to Ches Tahoe restaurant is 2.11%
The probability that at least 35 people will go to Ches Tahoe the restaurant is -1.88.
Given that,
When you select a random person, the probability that this person will go to Ches Tahoe restaurant is 75%,
We have to determine,
You randomly select 8 people. What is the probability that exactly 3 people
from that group will go to Ches Tahoe restaurant.
You randomly select 50 people. Use the normal approximation to the binomial distribution to find the probability that at least 35 people will go to Ches Tahoe restaurant.
According to the question,
When you select a random person, the probability that this person will go to Ches Tahoe restaurant is 75%,
You randomly select 8 people.
Then,
The probability that exactly 3 people
from that group will go to Ches Tahoe restaurant is,
[tex]P(x) = ^nC_x \times q^x \times p^{n-x}[/tex]
Where n = 8, x = 5, q = 1 - 0.75 = 0.25, and p = 0.75
Substitute all the values in the expression,
[tex]P(5) = ^8C_5 \times (0.25)^5 \times (0.75)^{8-5}\\\\P(5) = \dfrac{8!}{(8-5)!. 5!} \times 0.00097 \times (0.75)^3\\\\P(5) = \dfrac{8 \times 7 \times 6}{3 \times 2} \times 0.00097 \times 0.42\\\\P(5) = 0.2118\\\\P(5) = 2.11 \ Percent[/tex]
The probability that exactly 3 people from that group will go to Ches Tahoe restaurant is 2.11%.
You randomly select 50 people. Use the normal approximation to the binomial distribution
Then, the probability that at least 35 people will go to Ches Tahoe restaurant is,
Mean for that at least 35 people will go to Ches Tahoe restaurant is,
[tex]\mu = n \times p \\\\\mu = 8 \times 0.75\\\\\mu = 6[/tex]
And standard deviation that at least 35 people will go to Ches Tahoe restaurant is,
[tex]\sigma = \sqrt{n \times p \times q} \\\\\sigma = \sqrt{0.75 \times 0.25 \times 8}\\\\\sigma = \sqrt{1.5}\\\\\sigma = 0.53[/tex]
Normal approximation to the binomial distribution is,
[tex]z = \dfrac{x-\mu}{\sigma}\\\\z = \dfrac{5-6}{0.53}\\\\z = \dfraac{-1}{0.53}\\\\z = -1.88[/tex]
The probability that at least 35 people will go to Ches Tahoe the restaurant is -1.88.
To know more about Probability click the link given below.
https://brainly.com/question/21586810
Identify the function shown in this graph.
Answer:
D
Step-by-step explanation:
the slope is going 1 up right 1 and the y-intercept is 4
PLEASE HELP!!! I WILL GIVE BRAINLIST!!
Use the vertical line test to determine whether each relation is also a function.
Using the vertical line test, is this the graph of a function?
Yes
No
Answer: Yes
Step-by-step explanation:
Using the vertical line test, we draw a bunch of lines that go up and down. We can see there is no point where a vertical line has 2 intersections.
What is this? Please answer if u know what u are doing
Answer:
(2, 20 )
Step-by-step explanation:
Given
y = 5 × [tex]2^{x}[/tex] ← substitute x = 2
y = 5 × 2² = 5 × 4 = 20
Then (2, 20 )
Help on this please anyone give Brainly.
Answer:
C
Step-by-step explanation:
80 POINTSType the correct answer in the box. Use numerals instead of words.
What value of x makes this equation true?
-2x+3= -15
Answer:
x=9
Step-by-step explanation:
Let's solve your equation step-by-step.
−2x+3=−15
Step 1: Subtract 3 from both sides.
−2x+3−3=−15−3
−2x=−18
Step 2: Divide both sides by -2.
−2x
−2 =-18/-2
=9
2/5 * 2/5 equal what
Answer:
the answer is 4/25
Step-by-step explanation:
i hope this helps
A worker is using a polyurethane spray can to seal and protect several new
dinner tables. It takes 2/5 of a can to seal and protect each table. The worker
has 3 full cans of spray. How many tables can the worker seal and protect?
Answer:
7.5
Step-by-step explanation:
(15/5)-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.2=0
is 6(3x + 1) and 9x + 6 + 9x equivalent
Answer:
The expressions are equivalent.
Step-by-step explanation:
Let's simplify each expression.
6(3x + 1) = 18x + 6
9x + 6 + 9x = 18x + 6
Both expressions are equal to 18x + 6, so they are equivalent.
Answer: The expressions are equivalent.
I need help please :)
Answer:
Um sorry if its wrong but I think its that it gets bigger as you go on.
Step-by-step explanation:
What is this called will give brainliest to the first person who answers thanks
Can someone help me with this problem ?
Answer:
17
Step-by-step explanation:
43-26=17
Answer:
17
Step-by-step explanation:
Huong ran 26 miles more than Eduardo so you would subtract 26 from the amount Huong actually ran to get how many miles Eduardo ran.
So the equation would be...
43-26= 17
A mechanic earned $983.88 for 42.5 hours of work . Which is the best estimate of how much the mechanic earned per hour
The cost, cx), for a taxi ride is given by c(x) = 3x + 2.00, where x is the
number of minutes.
On a piece of paper, graph c(x) = 3x + 2.00. Then determine which answer
matches the graph you drew, including the correct axis labels.
Answer:
B
Step-by-step explanation:
it has the correct y intercept and x and y axis labels
7. Which of the following is the algebraic
representation for a translation 7 units left and
6 units up?
A. (X +7,7-6)
B. (x-7, y + 6)
C. (x + 6,7 - 7)
D. (X-6, y + 7)
Answer:
the answer is b
Step-by-step explanation:
the x axis is left and negative units would go to the left
the y axis is up and down so positives would go up
Please Help Me With This Problem.
Answer:
SAS
Step-by-step explanation:
I haven't been in Geometry for a few years but it is SAS because TU and UV are sides and U is an angle at its midpoint.
Answer:
None of the above
Step-by-step explanation:
None of the above option will be the correct answer.
Because only two corresponding sides are congruent and no angle or any third side is given as congruent.
