Answer:
I think the answer is (x + 4) • (x + 2)
Step-by-step explanation:
First multiply the coefficient of the first term by the constant
Step 2: Find two factors of 8 whose sum equals the coefficient of the middle term 6
Step 3: write the polynomial splitting the middle term using the two factors found in step 2
Step 4: Add up the first 2 terms, pulling out like factors :
x • (x+2)
Add up the last 2 terms, pulling out common factors :
4 • (x+2)
Step 5: Add up the four terms in step 4
(x+4) • (x+2)
Your final answer is (x + 4) • (x + 2)
After being exposed to an electromagnet shrinking machine, Joe’s height decreased by 120 cm over 1.5 seconds. His height decreased by the same amount each second. How much did Joe’s height change each second?
Answer:
-80cm/sec
Step-by-step explanation:
It is given that Joe was being exposed to an electro magnet shrinking machine.
Because of this his height started decreasing.
The decrease was at a constant rate per second is given.
In 1.5 seconds, the height decreased by 120 cm.
Since given as constant decrease per second we find that this is direct variation of height over second.
variation per second =
Change in each second would be with negative sign indicating decrease
Answer: -80cm
Step-by-step explanation: khan academy
What is the amplitude and period of f(t)=2.5tan(t)
A. amplitude: 2.5; period: π
B. amplitude: 2.5; period: 2π
C. amplitude: none; period: 2π
D. amplitude: none; period: π
I selected A, and I do not know why I got it wrong.
Answer:
D
Step-by-step explanation:
Tan graphs are a bit different to sin and cos graphs: they don't have an amplitude.
If you look at a tan graph, it exists between assymptotes and has no maximum or minimum value. In this case, the 2.5 acts similar to a dilation factor and makes the graph skinnier or wider.
You were right about the period: it is just pi, not 2 pi like sin and cos. Again, if you look at the graph, the assymptotes occur every period, which is only pi.
Hope that helped : )
Simplify each and state the excluded values p+4/p^2+6p+8
will mark brainliest!! solve & simplify the following equation: 2x²-7x=4
Answer:
x= −1 /2 or x=4
Step-by-step explanation:
This is ALGEBRA, equations, factoring and zero property. ok.. let's solve this step-by-step
2x^2−7x=4
Step 1: Subtract 4 from both sides.
2x^2−7x−4 =4 −4
2x^2−7x−4=0
Step 2: Factor left side of equation.
(2x+1)(x−4)=0
Step 3: Set factors equal to 0.
2x+1=0 or x−4=0
x= −1 /2 or x=4
(BTW, there are supposed to be two answers, it's factoring)
Sorry if the format is not clear, but I hope this helped (really feel you, algebra can be brain-striking)!! Please leave a comment, rating and/or mark as the brainliest-whichever you think I deserve! Thank You :)
A city's mean minimum daily temperature in February is 22 degrees Upper F. Suppose the standard deviation of the minimum temperature in February is 6 degrees Upper F and that the distribution of minimum temperatures in February is approximately Normal. What percentage of days in February has minimum temperatures below freezing left parenthesis 32 degrees Upper F right parenthesis?
Answer:
Probability that X <32 degrees
[tex]=P(Z<\frac{32-22}{6}) =P(Z<1.67)\\ = 0.9522[/tex]
Convert this into percent by multiplying by 100
95.22% of days in February has minimum temperatures below freezing (32 degrees Upper F )
Step-by-step explanation:
Given that a city's mean minimum daily temperature in February is 22 degrees Upper F, with std deviation 6 degrees.
Let X be the minimum temperature in February
Then X is N(22,6)
To calculate percentage of days in February has minimum temperatures below freezing (32 degrees Upper F )
Probability that X <32 degrees
[tex]=P(Z<\frac{32-22}{6}) =P(Z<1.67)\\ = 0.9522[/tex]
Convert this into percent by multiplying by 100
95.22% of days in February has minimum temperatures below freezing (32 degrees Upper F )
Noah's water bottle contains more than 1 quart of water but less than LaTeX: 1\frac{1}{2}1 1 2 quarts. Let w be the amount of water in Noah's bottle, in quarts. Select all the true statements.
Group of answer choices
Answer:
What are the answer choices?
Step-by-step explanation:
Answer:
(1.) w could be 3/4
(2.) w could be 1
(7.) w >1.5
Step-by-step explanation:
Help meh out please.
Answer:
Step-by-step explanation:
sry bro im confused
What is the relationship between AXY and YXB?
All segments that appear straight are straight.
Choose 1 answer:
Complementary angles
* Supplementary angles
None of the above
Answer:
Angles AXY and YXB are complementary angles because they add up to 90 degrees, which can be inferred by looking at angle BXC.
will mark brainliest!! solve & simplify the following equation: x²+5x=0
Answer:
X=0 or x=-5
Step-by-step explanation:
[tex] {x}^{2} + 5x = 0 \\ x(x + 5) = 0[/tex]
X=0 or x+5=0 => X=-5
Hope this helps..
How many Positive Integers are there between 20 to 100 exclusively?
Answer:
198
Step-by-step explanation:
between 20 to 100 MEANS THAT WE EXCLUDE 20 AND 100
INTEGER IS POSITIVE AND NEGATIVE NUMBER WHICH IS 21 TO 199 FOR THIS QN WHICH IS 198 IN NUMBER
HELPPPPP ITS ABOUT SCATTER PLOTSSSS Helpppppp
Answer:
36 gallons
Step-by-step explanation:
y = 4/5x
Let x = 45 minutes
y = 4/5 (45)
y = 36 gallons
Answer:
B. 36
Step-by-step explanation:
Let x = 45
y = 4/5 * (45)
= 4 * 9
= 36
Hope this helps!
A basketball player's "hang time" is the amount of time the player remains suspended in the air after a jump. The height (in meters) of superstar Michael Jordan during a jump is shown in the graph below. Assume that hhh is the distance from the ground to the lowest part of his body at ttt seconds.. Complete the following sentences based on the graph of the function. Round your answers to the nearest tenth. This is the graph of a function. Michael Jordan's hang time is second(s). The maximum height is about meter(s) . For ttt between t=0.5t=0.5t, equals, 0, point, 5 and t=1t=1t, equals, 1, the height is .
Answer:
The graph is a nonlinear function. Michael Jordan's hang time is 0.9 seconds. The maximum height is about 1 meter. For t between t = 0.5 and t = 1, the height is decreasing.
Step-by-step explanation:
Okay the first one: It's nonlinear because its not a line, its a curve and its definitely not constant. The curve on the graph stops at (0.9,0) so his hangtime is 0.9 seconds. The peak of the curve is about 1 meter. Pretty self explanatory. And the last one, after the point 0.5, the height of the curve goes down, so it is decreasing.
Answer:
The graph is a nonlinear function
Michael Jordan's hang time is 0.9 seconds
The maximum height is about 1 meter
For t between t = 0.5 and t = 1, the height is decreasing.
Step-by-step explanation:
×+7-8×/3=-5×/2 please help me with this please please
please
Answer:
x=-42/5
Step-by-step explanation:
pls mark me as brainliest
x+7-8x/3=-5x/2
x+5x/2-8x/3=-7
(6x-16x+15x)/6=-7
5x=-42
x=-42/5
Only do question 16
50 points
Topic: Percentage
Answer:
329.31
Step-by-step explanation:
The total percentage we have to add is
5+7+1+ .75 =13.75 %
Take the cost of the ticket and multiply by the percentage
289.50 * 13.75%
Change to decimal form
289.50* .1375
39.80625
Rounding to the nearest cent
39.81
Add this to the cost of the ticket
289.50+39.81
329.31
i need the answer pls and ty
Answer:
B
Step-by-step explanation:
45-45-90 triangles have the ratio 1:1:sqrt(2) on their sides
20sqrt(2):20sqrt(2):20(2)/40 satisfies this ratio
Find the slope of the line going through the points (0,6) and (-3,9)
Answer:
The slope of the line is 5.
The point slope form of the line is y=5x+6.
Step-by-step explanation:
We can find the slope using this formula: [tex]\frac{y_{2} }{x_{2} } -\frac{y_{1} }{x_{1} }[/tex]
[tex]\frac{6}{0} -\frac{9}{-3} =[/tex]
[tex]\frac{6}{0} -(-\frac{9}{3} )=[/tex]
[tex]\frac{6}{0} +\frac{9}{3} =[/tex]
[tex]\frac{15}{3} =[/tex]
5
The slope of the line is 5.
To find point slope form, we use the equation y=mx+b where m is the slope and b is the y-intercept.
The y-intercept of this slope is 6 and the slope is 5 so we get, y=5x+6
pleaseeeeee help with math. i’ve gotten no help today. explantion needed!!
Answer:
Exactly two distinct zeros
Step-by-step explanation:
y = 2(x-1) (x + 4)
Plug y = 0
0 = 2(x-1) (x + 4)
0/2 = (x-1) (x + 4)
(x-1) (x + 4) = 0
(x-1) = 0 or (x + 4)= 0
x = 1 or x = - 4
Here, x has two distinct roots, therefore given quadratic relation has Exactly two distinct zeros.
A spinner with 5 equal sections labeled 1-5 is spun 50 times. The results are shown in the table. What is the experimental probability of spinning a 1?
Answer:
10
Step-by-step explanation:
Spinner divided to 5 equal parts
It is Numbered from (1 to 5): 1, 2, 3, 4, 5
Theoretical probability of spinning 1 = 1/5
Number of times it is spun = 50
Let Experimental probability of spinning 1 = x
1/5 = x/50
5x = 50
x = 50/5
x = 10
Experimental probability of spinning 1 = 10
Answer:
10
Step-by-step explanation:
please help! thank you
Answer:
3rd, 4th, last
Step-by-step explanation:
To complete a task in 16 days a company needs 5 people working 6 hors per day the company decides to have 8 people each working for 4 hours per day assuming that each person works at the same rate how many days will the task take to complete
Answer:X=15d or just 15
Step-by-step explanation:Since there is an increase in manpower/hours of: [8 x 4] / [6 x 5] = 16/15, therefore, there must be decrease in days by the same pecentage. Or 16 / [16 / 15] =16 x 15/16 =15 days
Answer:
15 days
Step-by-step explanation:
Or you could just write 15 on MathsWatch
write these numbers in standard form: a)200,000 b)80,000 c)900,000,000 d)1,000,000,000
Step-by-step explanation:
a) 200,000 equals 2 times 10^5
b) 80,000 equals 8 times 10^4
c) 900,000,000 equals 9 times 10^8
d) 1,000,000,000 equals 1 times 10^9
El área de un trapecio es 120 m², la altura 8 m, y la base menor mide 10 m. ¿Cuánto mide la otra base?
Answer:
El soluccion es 20m.
Step-by-step explanation:
Para encontrar la base major necesitas saber el area, la altura, y el base menor.
Puedes usar la formula para la area de un trapecio: [tex]A=\frac{a+b}{2} *h[/tex]
Pero se puede cambiar por lo que es en términos de encontrar la base más grande:
[tex]b=2\frac{A}{h} -a\\A=Area\\h=altura\\a=base-menor\\b=base-major[/tex]
Y si conectas las variables que conoces, siempre podrás encontrar la que no tienes
[tex]b=2\frac{120}{8} -10\\b=20[/tex]
What is the value of x in the equation 8x - 2y = 48, when y = 4?
Answer:
x = 7
Step-by-step explanation:
8x - 2y = 48
Let y=4
8x - 2(4) = 48
8x -8 = 48
Add 8 to each side
8x -8+8 = 48+8
8x = 56
8x/8 = 56/8
x = 7
A chef combines 5 quarts of pineapple juice, 6 pints of milk, and 7 cups of apple juice to make smoothies. How many cups can be filled with smoothies? Explain.
according to a political polling firm, the probability of candidate a winning the Democratic primary is 60%. If she wins the Democratic primary, the probability of her winning the general election is 54%. What's the probability of her winning the Democratic primary and then general election?
Answer:
d) 32.4%
Step-by-step explanation:
p(chance of winning general election) = (chance of winning primary)x(chance of winning general) = 60% x 54% = 0.6 x 0.54 = 0.324 = 32.4%
Help me please I'm begging you i am marking brainiest, no one ever helps me with anything i am really struggling as a kid to move on to the next grade so please me me out with this problem please for i can force myself to keep going:
A student is doing a reading assignment. After 37 minutes of reading, she skims the pages ahead and estimates that she still has 55% of the reading to do. According to the girl's estimate, how long is the total reading assignment? Round to the nearest minute.
Answer:
82 minutes.
Step-by-step explanation:
So first calculate the percentage 37 minutes is. It is 45%
Next find how much 1% is.
Divide by 45.
[tex]\frac{37}{45}[/tex]
Multiply by 100 to find how much the whole time is: [tex]\frac{3700}{45}[/tex]
The decimal version is: 82.2222222222...
Which simplifies to 82 minutes.
Answer:
82 mins
Step-by-step explanation:
percentage of pages she has already read
100-55= 45%
45%----------- 37mins
55%------------ x mins
x =( 37× 55)/45
x= 45.22 mins
approximately x=45 mins
The time for reading assignment is 37mins + 45 mins = 82 mins.
How many minutes does it take angel to run on kilometer?
Answer:
We can see from the table that 1 km is exactly half way between 2 and 3 laps. So it will take 2.5 laps to run 1 km. So it takes Angel 5 minutes to run 1 km.
Step-by-step explanation:
Please help me with this question please help
Answer:
hope this helps you
PICKING BRAINLIEST!!! Please select the word from the list that best fits the definition a device used to find latitude
Answer:
it’s astrolabe
Step-by-step explanation:
During his hike, Milt drank 1 liter of water and 1 liter of sports drink. How many milliliters of liquid did he drink?
Answer:
2000 ml of liquid
Step-by-step explanation:
1l plus 1l will equal 2l.
1 liter consists of 1000 milliliters ("milli" means thousand).
If 1l had 1000ml, 2l will have 2000ml.
So 2000mlnis the answer