The answer is 2
Step-by-step explanation:
2j = 8-4
2j = 4
j = 2
Express 848.41 m in millimeters
If Matt's share is 20% less than Kate's, how much is Kate's share more than Matt's?
A.
O 25%
B.
0
33.33%
38
C. O 20%
D. O 50%
25 points! Please help!
Answer:
17.5(D)
Step-by-step explanation:
So, lets see:
Every 5 minutes, Raul answers 22 questions.
The test has 77 questions.
We must figure out the time it takes to answer all 77 questions.
To do this, lets first divide the total questions by the questions answered per 5 minutes:
77 / 22
=
3.5
I got 3.5 knowing that 3x22 is 66, and half(0.5) of 22 is 11, and 11 plus 66 is 77.
So, the 3.5 is how many times he answrs 22 questions in five minutes.
To make a bit more sense, basically we have to multiply the 5 minutes by the 3.5:
3.5*5
=
17.5
We know that 3 times 5 is 15. Half(0.5) of 5 is 2.5, so 15+2.5 is 17.5.
So the answer is that for the 77 quesitons, it takes 17.5 minutes
HOPe this helps!
please answer ive been having such a bad day today
Answer:
A - y = 2x + 1
Step-by-step explanation:
2(2) + 1 = 5
2(4) + 1 = 9
2(6) + 1 = 13
Hope this helps <3
PLESE QUICKLY SOLVE URGENT
Answer:
$12.50 per lawn
Step-by-step explanation:
If you get $25 when mowing two lawns(inferred from the table) you would earn exactly half of that amount for 1 lawn.
25 ÷ 2 = 12.5
This means you are earn $12.50 for one lawn or $12.50 per lawn.
One term of a geometric sequence is a4=135. The common ratio is r=3. Write an explicit rule for the nth term.
Answer:
[tex]a_{n} = 5 * 3^{n-1}[/tex]
Step-by-step explanation:
To find the nth term of a geometric sequence, you have the general formula:
[tex]a_{1} *r^{n-1}[/tex]
where a1 is the first term and r is the common ratio. In order to find the 4th term, we can substitute what we have(n is 4 because we are looking for the fourth term):
135 = [tex]a_{1} * 3^{4 - 1}[/tex]
135 = [tex]a_{1} * 3^3[/tex]
135 = [tex]27a_{1}[/tex]
[tex]a_{1} = 5[/tex]
Now, we can substitute the first term back in:
[tex]a_{n} = 5 * 3^{n-1}[/tex]
Trish types 3 1/3 pages. Joy types 3/4 as many pages as Trish.
How many pages does joy type?
Answer: Joy types 2 1/2pages
Step-by-step explanation:
Number of pages typed by Trish= 3 1/3 pages
Number of pages typed by joy=3/4 as many pages as Trish=3/4 x 3 1/3 pages
=3/4 x 3 1/3
=3/4 x 10/3
=(30/12) ÷(3/3)
=10/4)÷(2/2)
=5/2=2 1/2
If A = –2p + 7 and B = p2 + 3p – 5, find an expression that equals A – 3B in
standard form.
Answer:
-3p^2 - 11p + 22
Step-by-step explanation:
A - 3B becomes (-2p + 7) - 3*(p^2 + 3p - 5).
Perform the indicated multiplication, obtaining:
(-2p + 7) - 3p^2 - 9p + 15, and then:
-2p + 7 - 3p^2 - 9p + 15, or (combining like terms):
-3p^2 - 11p + 22
How do I find the margin of error?
Answer:
You can find the margin of error by using this this formula
[tex]z \times \frac{σ}{ \sqrt{n} } [/tex]
Which term describes a fraction that has a polynomial in its numerator and denominator?
Answer:
Rational expression
Step-by-step explanation:
Calculate the surface area of a prism with the following dimensions.
the length (l) = 13 units, the width (w) = 2 units and the height (h) = 17 units.
a.
278 sq. units
c.
562 sq. units
b.
276 sq. units
d.
987 sq. units
Answer:its B I did the quiz
Step-by-step explanation:
If a sample of 14 students were taken from a population of 168 students, o?
could refer to the variance of how many of the students' heights?
A. 168
B. 14
C. Both 14 and 168
D. Neither 14 nor 168
The graph shows the total number of participants in a town's recreation program at the end of every year since the year 2000. The line of best fit for the data is given by the equation =13+50, where y is the total number of participants x years after the beginning of the year 2000.
Which statement correctly interprets the slope of the line of best fit?
A. The rate of change is 1 new participant every 13 years.
B. The rate of change is 13 new participants every 13 years.
C. The rate of change is 13 new participants every year.
D. The rate of change is 50 new participants every year.
Answer:
B
Step-by-step explanation:
Answer:
The rate of change is 13 new participants every year.
Step-by-step explanation:
y=13x+50
This is in the form y = mx+b where m is the slope and b is the y intercept
x is the number of years so for every year increase we gain 13 new participants
need help w 5 plsss help
Download photo-math on ur phone and take a picture of the equation. it should tell u the answer.
Please explain which answer is correct and why. Thank you!
Answer: Choice 1
3(MC) = SC
=====================================================
Explanation:
The three medians intersect at the centroid, which is point M in this case. The intersecting medians subdivide themselves in the ratio 2:1
This means that SM is twice as long as MC. We can say SM = 2MC
Then by the segment addition postulate, we know that:
SC = SM + MC
SC = 2MC + MC
SC = 3MC
3(MC) = SC
So having three copies of MC glued together will form segment SC.
The same idea applies for the other medians also (EK = 3EM and RL = 3ML).
Please help, I am struggling with learning about this
Answer:
canvas? or is that a different website
Step-by-step explanation:
Change of Base formula: [tex]log_ax=\frac{log_bx}{log_ba}[/tex]
b can be any number.
This formula is used because a lot of calculators can't calculate a logarithm with a base other than 10, so calculators don't show the bases, it is already assumed as base 10.
[tex]log_725=\frac{log_{10}25}{log_{10}7}[/tex]
Type log(25) / log(7) to get: 1.6542
Pls let me know if u have any questions about logarithms, it helps me study!!
Help pls I’ll mark you brainliest
Answer:
9
Step-by-step explanation:
9
Which of the pairs of angles are vertical angles and thus congruent? ∠A and ∠G ∠A and ∠B ∠C and ∠F ∠D and ∠H
Answer:
∠A and ∠G is the pair of vertical angles.
Step-by-step explanation:
From the figure attached,
Two lines 'm' and 'n' are two parallel lines. These lines intersect a horizontal line 'l'.
Since, "Pair of opposite angles formed at the point of intersection are the vertical angles and equal in measure."
Therefore, Opposite angles ∠A ≅ ∠G, ∠B ≅ ∠H, ∠C ≅ ∠E and ∠D ∠F are the vertical angles.
From the given options,
∠A and ∠G is the pair representing the pair of vertical angles and thus congruent.
Answer:
∠A and ∠G
Step-by-Step Explaination:
I did it on
E
D
G
E
N
U
I
T
Y
csc^ 2 theta- csc^ 2 theta sec^ 2
Answer:
-csc²θ(tan²θ)
Step-by-step explanation:
csc²θ-csc²θ(sec²θ)
-csc²θ(-1+sec²θ)
-csc²θ(tan²θ)
Question in screenshot
Answer:
See below
Step-by-step explanation:
[tex]y = {u}^{ \frac{3}{2} } \\ \\ \therefore \: \frac{dy}{du} = \frac{3}{2} {u}^{ \frac{3}{2} - 1 } = \boxed{\frac{3}{2} {u}^{ \frac{1}{2}} } \\ \\ u = 8x + 3 \\ \\ \frac{du}{dx} = 8.1 + 0 = \boxed{8}[/tex]
A box contains 16 red marbles, 25 green marbles, 4 yellow marbles and 10 blue marbles. A marble is chosen at random. What is the probability of not choosing a green marble
Answer:
Step-by-step explanation:
What is the volume of a rectangular prism that has a length of 18 inches, a width of 1 foot, and a height of 14 inches?
Answer:
3024
Step-by-step explanation:
l * w * h
18 in. * 12 in. * 14 in.
there are 12 inches in 1 foot.
find the vertex of the graph of the following quadratic equations y= -3x^2 -12x-13
Answer:
Step-by-step explanation:
The vertex is a point. The x value is defined as x = - b / 2a where
a = -3
b = - 12
x = - -12/ 2* -3
x = 12 / - 6
x = -2
what is y when x = - 2?
y = -3(-2)^2 - 12(-2) - 13
y = -12 + 24 - 13
y = -1
Does the graph agree? It should
The equation is written as
y = -3(x + 2)^2 - 1
The experiment proceeded as normal, with the experimental group hearing about the potential presence of a gun as the confederates left the study and the control group not hearing about the gun. Unfortunately, word spread around campus about a man with a gun who stole a laptop during a study. Unknown to the study researchers, many potential participants participated in the research anyway, and kept an eye out for a gun, knowing that they might be asked about it. The researchers found that those in the experimental group did not differ from those in the control group about the likelihood of a gun. That is, the mean score that a gun was present during the second interview was similar for the experimental group (M = 67%, SD = 12.4%) and the control group (M = 63%, SD = 11.16%).
Maturation
Regression to the mean
Selection
Mortality
Instrumentation
Testing
History
Interactions
Diffusion
No Threat
Answer:
The answer is "The threat to internal validity is mortality".
Step-by-step explanation:
It signifies that while in terms of your study, persons were "morning." It usually signifies when people leave the studies. There will be only likely if indeed the experiment lasts a long period that it'll be a substantial danger to validity and reliability because the chance for drops increases. Eight content validity risks are history, maturity, instrument, test, choice, average regress, human engagement, and mortality.
what is the slope of this graph
Answer:
Slope, m = 5
Step-by-step explanation:
Picking points on the x-axis and y-axis of the graph;
Point on x-axis (x1, x2) = 2, 4
Points on the y-axis (y1, y2) = 10, 20
To find the slope;
Mathematically, slope is given by the formula;
[tex] Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis} [/tex]
[tex] Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}} [/tex]
Substituting into the equation, we have;
[tex] Slope, m = \frac {20 - 10}{4 - 2} [/tex]
[tex] Slope, m = \frac {10}{2} [/tex]
Slope, m = 5
What is the perimeter of the shape?
- 12 feet
-14 feet
-26 feet
-38 feet
Answer:
26 ft
Step-by-step explanation:
When Annie hits a softball, the height of the
ball above the ground after t seconds is given
by h = -4.9/2 + 19.61 + 1.4 metres. Find the
maximum height reached by the ball.
Answer:
21 metres.
Step-by-step explanation:
I think you mean the equation to be:
h = -4.9t^2 + 19.6t + 1.4
To find the maximum height we convert the equation to vertex form:
h = -4.9(t^2 - 4t) + 1.4
h = -4.9[(t - 2)^2 - 4] + 1.4
h = -4.9(t - 2)^2 + 19.6 + 1.4
h = -4.9(t - 2)^2 + 21.
The maximum height is 21 metres.
Im on a girls basketball team , 3 are in sixth grade , 5 are in seventh grade , and 6 are in eighth grade . so what are ratio of all players sixth graders on the team
Answer:
14:3
Step-by-step explanation:
14 total.
all players : sixth graders
14:3
How much will it cost to run for 8 hours at a cost of $0.13 per
kilowatt-
hour?
For all x -4 which of the following is equivalent to the expression below?
x2 + 12x + 32 / x + 4
A. X + 3
B. X + 8
C. X + 11
D. X + 16
E. X + 28
A and e
Step-by-step explanation:
i did this on khan so I know it
The expression (x² + 12x + 32)/(x + 4) is equivalent to (x+8) option (B) (x+8) is correct.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have an expression:
[tex]=\rm \dfrac{x^2 + 12x + 32} { x + 4}[/tex]
[tex]=\rm \dfrac{(x+4)(x+8)} { x + 4}[/tex]
As it is given, x ≠ -4
We can cross the term (x+4) from the numerator and denominator.
= (x+8)
Thus, the expression (x² + 12x + 32)/(x + 4) is equivalent to (x+8) option (B) (x+8) is correct.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ2