Answer:
I think this would be the answer not sure though $29 - $16 = c
The diameter of a circle is equivalent to the
radius squared.
True
False
Explain your answer
Answer:
Step-by-step explanation:
The diameter of a circle is twice the radius, so the statement is false.
Which expression is equivalent to 3 x 3 x 3 x 3?
Answer:
3^4
Step-by-step explanation:
3 to the power of 4
Answer:
I think an answer would be 3 to the third or fourth power
or
9x9
Step-by-step explanation:
3x3 = 9 so if you split it up you have two 3x3s
9x9
A chemistry teacher wants to improve exam scores by incorporating more interactive in-class activities. The mean exam score for all her previous classes is 68% with standard deviation 10%. After trying out the interactive in-class activities for her current class, this class got a score of 75%. There were 25 students in the class. She decides to calculate a 95% confidence interval for what the average exam score would be if she continued this method for all classes.
Answer:
Step-b
Mini conclusion: if we randomly select a sample of 25 students, there is a 95% probability that the mean score is between 64.08 and 71.92.y-step explanation:
HELP ME PLZZZZZZZZZZZZZZ
Given:
The quadratic equation is
[tex]y=3x^2-18x+15[/tex]
To find:
The x-coordinate and y-coordinate of the vertex.
Solution:
If a quadratic function is defined by [tex]f(x)=ax^2+bx+c[/tex], then the vertex is defined as:
[tex]Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)[/tex]
If [tex]a<0[/tex], then the function has a maximum at the vertex and ff [tex]a>0[/tex], then the function has a minimum at the vertex.
We have,
[tex]y=3x^2-18x+15[/tex]
Here, [tex]a=3,b=-18,c=15[/tex].
Since [tex]a=3>0[/tex], therefore the function has a minimum at the vertex. So, fill min in first blank.
Now,
[tex]\dfrac{-b}{2a}=\dfrac{-(-18)}{2(3)}[/tex]
[tex]\dfrac{-b}{2a}=\dfrac{18}{6}[/tex]
[tex]\dfrac{-b}{2a}=3[/tex]
Putting x=3 in the given function, we get
[tex]y=3(3)^2-18(3)+15[/tex]
[tex]y=27-54+15[/tex]
[tex]y=-12[/tex]
Therefore, the vertex is at point (3,-12).
When does a quadratic equation in the form ax2 + b = c have only one real solution
when the discriminant is = 0
What are the coordinates of points P and S?
A. P(4,-4) and S(3,-2)
B. P(4,-4) and S(-2,-3)
C. P(-4,-4) and S(-3,-2)
D. P(-4,4) and S(-3,-2)
9514 1404 393
Answer:
D. P(-4,4) and S(-3,-2)
Step-by-step explanation:
The first coordinate is the number of units right of the vertical y-axis. Point P is 4 units left, so has an x-coordinate of -4. (Eliminates choices A and B)
The second coordinate is the number of units above the horizontal x-axis. Point P is 4 units up, so has a y-coordinate of +4. (Eliminates choice C)
The coordinates of points P and S are ...
P(-4,4) and S(-3,-2) . . . . . matches choice D
Answer:the answer is D. P(-4,4) and S(-3,-2)
Step-by-step explanation:took the test and got it right
if you can help tyyyy :))))
Answer: it should be 5+3+4+11=23
Step-by-step explanation: when you look for the volume you add all the numbers. hope it helps :)
plz mark as branlist
1 3/7-2/7 show work please
Answer: 1 1/7
Step-by-step explanation: 3/7 - 2/7 = 1/7
here the answer here you Step-by-step explanation:
here an the 1 1/7
PLS HELP MEEEEEEEEEEEEEEEEEE
Answer: 8, 2 1/6, 50, 90, 7
Step-by-step explanation:
1. Average speed = Distance/Time taken for entire trip
(10 * 3 + 2 * 1)/(3+1) = 32/4 = 8 mph
2. 6 1/4 = 25/4 9 3/8 = 75/8 (75/8)/(25/4) = 3/2
x = 3/2 + 2/3 = 13/6 = 2 1/6
3. Let's say there are x quarters in the collection, there would be 3x nickels, 2x dimes, and x quarters in the collection. The collection would be worth
3x * 5 + 2x * 10 + x * 25 = 300 cents
Solve for x to get x = 50 so there are 50 quarters in the collection
4. Sam has drove 2 * 45 = 90 miles so he has 90 miles remaining. Let's say he has to drive x hours to make his average speed 60 mph, we can use this equation to find how long he has to drive
(90+90)/(x+2) = 60 and x = 1
He has to drive 90 miles/1 hour = 90mph to make his average speed 60 mph.
5. Let's say you have to run x mph to satisfy the requirements, we can use the equation
(1.5*3+0.5*x)/(1.5+0.5) = 4 and x = 7 so you have to run 7 mph in the next 0.5 hours to satisfy the requirements
which common denominator can be used to add this pair of fractions 3/4 and 2/6
The beginning balance on the monthly bank statement for Peyton's checking
account was $346.19, and the ending balance was $198.34. What can be said
about Peyton's transactions for the month?
O A. He had $147.85 more in credits than in debits.
O B. He had $544.53 more in credits than in debits.
.
O c. He had $544.53 more in debits than in credits.
O D. He had $147.85 more in debits than in credits.
Answer:
A: He had $147.85 more in credits than in debits.
Step-by-step explanation:
HELP ITS DUE IN 4 MINUTES
Option (a) Tectonic plate movement.
Explanation:- Wegener suggested that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.) Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics.
The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 22 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. a. Around what percentage of adults in the USA have stage 2 high blood pressure
Answer: 4.27% of adults in the USA have stage 2 high blood pressure.
Step-by-step explanation:
Let x be a random variable that denotes a person with high blood pressure .
Given: Average blood pressure: [tex]\mu=122[/tex]
Standard deviation: [tex]\sigma=22[/tex]
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.
The probability that an adult in the USA have stage 2 high blood pressure:
[tex]P(x\geq160)=P(\dfrac{x-\mu}{\sigma}}\geq\dfrac{160-122}{22})\\\\=P(z\geq1.72)\ \ \ [z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(z<1.72)\\\\=1-0.9573\ \ [By\ p-value\ table]\\\\=0.0427=4.27\%[/tex]
Hence, 4.27% of adults in the USA have stage 2 high blood pressure.
The population of Hicksville increased from 20,000 to 24,500 in the past decade. What is the percent of increase in population of Hicksville?
Cedric is 20 years younger than Steve. The sum of their ages is 37. How old
is Cedric?
[tex]Your[/tex] [tex]answer[/tex] [tex]would[/tex] [tex]be.[/tex]
[tex]17[/tex] [tex]because[/tex] [tex]you[/tex] [tex]needed[/tex] [tex]to[/tex] [tex]subtract[/tex] [tex]37 and20[/tex]
[tex]- Yaoii[/tex]
plz help 20 points if you get it right and I will give you brainliest
Answer:
The first one cannot be simplified
reason: usually when simplifying an expression you combine like terms but in the given expression there are no like terms
An example of like terms would be 6a and 9a
Essentially what i am saying is that the variables have to be the same in order for them to be combined
The second one is 36r
This is the answer because they tried to combine like terms that aren't similar
r and f are not the same variable therefore they cannot be combined
Hope this helps :)
what is 37 feet into yards and feet
Answer:
12 yards and 1 foot
Step-by-step explanation:
Please help due soon.
Answer:
120
Step-by-step explanation:
Help fast please....
Answer:
86.7cm
Step-by-step explanation:
((5.95x5.1)/2)x4=60.69
5.1x5.1+60.69=86.7cm
good luck!
HELP ASAP PLS ANSWER THE QUESTION IN THE PIC I GIV BRAINLEST AND LOTS OF POINTS TO CORRECT ANSWER
Answer:
x = 55
Step-by-step explanation:
First set the equations to equal eachother since theyre corresponding.
3x - 60 = x + 50
Then just solve for x.
3x - 60 = x + 50
+60 +60
3x = x + 110
-x -x
2x = 110
/2 /2
x = 55
using algebra, what is the first step in solving the following equation for the value of x;
8x + 12 = 52.
a) perform the inverse of multiplying by 8 (divide by 8) b) subtract 12 to form the identity (0) and cancel the 12. c) using the property of equality and do the same thing on both sides of the equal sign.
d) isolate the variable
Answer:
subtract 12 to form the identity (0) and cancel the 12.
Step-by-step explanation:
Subtract 12 from both sides.
8x=52−12
2 Simplify 52-1252−12 to 4040.
8x=40
3 Divide both sides by 88.
x=\frac{40}{8}
40/8
simplify 40 over 8 to 5
x=5
Answer:
×=5
Step-by-step explanation:
-12 both sides
then divide 8 both sides
40/8 =5
Factor completely x^2 + 8x + 15.
O (x+3)(x+5)
O (x+3)(x-5)
O X+1)(x+15)
O(x+1)(x-15)
Answer:
x<3 and x<5
Step-by-step explanation:
Given the quadratic inequality x² - 8x + 15 <0, to get the solution set for the inequality, the following steps must be followedStep 1: Factorize the quadratic expression
x² - 8x + 15 <0
x² - 3x - 5x + 15 <0
x(x - 3) - 5(x - 3) <0
(x -3)(x -5)< 0
x -3<0 and x -5<0
x< 3 and x< 5
my teacher told me c is wrong.
Answer:
I was pretty sure it was C.
Step-by-step explanation:
Sorry if I'm wrong.
Is 17,144,145 a right triangle or not a right triangle?
Answer:
Not a right triangle. A right angle needs a 90 degree angle.
Find angle a (use pic)
Help with word problem please!
Step-by-step explanation:
Create a right triangle with the hypotenuse = 2400in (same as 200ft) and angle from horizontal =15 degrees
you can create the equation to find the opposite line (y-value)
2400sin(15) =
621 in
HELP ASAP PLS SOLVE THE PROBLEM IN THE PIC I GIVE LOTS OF POINTS TO CORRECT ANSWER
Answer: C
Step-by-step explanation:
The first 2 letters match but the third one doesn’t and S= match so it is SSA
3. (2 marks) A real estate agent has 8 keycards to open new model homes. Only one keycard will open any specific model home. If 40% of these homes are usually left unlocked, what is the probability that the real estate agent can get into a specific home if the agent chooses 3 keycards at random before leaving the office
Answer:
0.625
Step-by-step explanation:
We are told that the agent has 8 keycards.
We are also told that only one of the keycards can open each home.
Now, if the agent took 3 out of the 8 keycards with him, it means that;
Probability of opening by the keycards = ⅜
We are told that 40% or 0.4 of these homes were left unlocked.
This means that 60% or 0.6 are those that will require a key card.
Thus, probability of agent getting into a specific home is;
P(agent getting into a specific home) = 0.4 + 0.6(⅜)
P(agent getting into a specific home) = 0.4 + 0.6(0.375) = 0.625
find the surface of the rectangular prism
Answer:
The surface of the rectangular prism is 42
l × w × h
The length is 3 width is 2 and the height is 3.
Hope this helps have an awesome day❤
5 6 7 9 9 9 what is the middle number
Answer:
the answer is 8 or
Step-by-step explanation:
if you are looking for the number that is in between the numbers, then you would cross them off equally from left to right, and the last two numbers would be 7 and 9. when this happens you look between them, so in this case the answetr would be 8