Answer:
✓ ✓ ✓
-6 X X✓ ✓ ✓
-6 X X
9. April's test scores in physics are 78, 85,65, 82, 90, and 95. Find the mean
and standard deviation of the data.
Answer:
82.5
Step-by-step explanation:
the mean and standard deviation of the data is 82.5
Answer:
82.6666667 or 82.7
Step-by-step explanation:
79+85+65+82+90+95=496
496 divided by 6=82.6666667
factorise x squared - 2 x - 24
Answer:
-2(x+12)
Step-by-step explanation:
yuson must complete 30 hours of community service. she does 2 hours each day. which linear equation represents the hours yuson has left after x days?
Answer:
30-2x
Step-by-step explanation:
yuson has to finish am total of 30 hours in community service
she does 2 hours each day
in x days, hour of service done=2x
after x days hours of service left=30-2x
therefore the linear equation representing the hours yuson has left after x days is:
30-2x
Suppose you are asked to pick 4 numbers from 1 to 20 to win a prize. What is the probability that one of the numbers you will pick is the winning number?
100 point NO SAMPLE ANSWERS PLEASE!
When you have two shapes to compare on a coordinate plane, you can determine the scale factor, knowing that the transformation was a dilation. Generate instructions you would give another student to determine the scale factor.
brainiest if you don't give sample answers
Assume that the initial coordinates are (x,y) and that the dilated coordinates are (x',y').
The dilation is therefore:
(x,y) ............> (x',y')
Now, let's assume that the dilation factor is k.
Therefore:
x' = kx
y' = ky
Based on the above, all the student has to do is get the initial coordinates and the final ones and then substitute in any of the above two equations to get the value of k.
Example:
Assume an original point at (2,4) is dilated to coordinates (4,8). Find the dilation factor.
Assume the dilation coefficient is k.
(x,y) are (2,4) and (x',y') are (4,8)
Therefore:
x' = kx .........> 4 = k*2 ..........> k = 2
or:
y' = ky ..........> 8 = k*4 .........> k = 2
Based on the above, the dilation coefficient would be 2.
Hope this helps :)
Answer:
First you have to find the ordered pairs for the shapes. Then figure out how much the pre-image was multiplied by. The number it was multiplied by is your scale value.
Step-by-step explanation:
I took the assessment. :)
Find the slope of the line that passes through: (2, 4) and (6, 12)
Answer: i dont know the answer bc i dont have the graph.
Step-by-step explanation:
but if you follow the line they should give you to in between
the two points you should find the answer. i hope this helped some what.
Twelve pounds of beans are distributed equally into 8 bags to give out at the food bank.
How many pounds of beans are in each bag?
Enter your answer in the simplest form.
Answer:
1 1/2 or 1.5
Step-by-step explanation:
12 divided by 8
brainliest?
Find the solution set of the inequality
- 4x +35> 2−4x+35>2minus, 4, x, plus, 35, is greater than, 2
xxx
Answer:
[tex]\boxed{\textsf{ Hence the solution set is$ \bf{\bigg( \dfrac{33}{4},\infty \bigg) }$}}.[/tex]
Step-by-step explanation:
A inequality is given to us and we need to find the solution set. So the given inequality to us is ,
-4x + 35 >2[tex]\bf\implies -4x + 35 > 2 \\\\\bf\implies -4x > 2-35 \\\\\bf \implies -4x > -33 \\\\\bf \implies x >\dfrac{-33}{-4}\\\\\bf \implies x > \dfrac{33}{4} \\\\\bf\implies \boxed{\pink{\bf x \in \bigg(\dfrac{33}{4}, \infty \bigg) }}[/tex]
★ Hence the solution set is x € ( 33/4 , ∞ ).Answer:
Step-by-step explanation:
5
How do I solve this? I need step by step
y=2x
x=-y+6
Notice that y = 2x, which means you can replace any y and turn them into 2x
x = -y + 6
x = -(2x) + 6
Move the x terms to the left and change the sign
x + 2x = 6
3x = 6
x = 2
Now that you know x, substitute them back into the first y = 2x
y = 2(2)
y = 4
Answer: x = 2, y = 4
Lee is forming kickball teams that include all of the students who signed up from two schools. Each team must have the same number of players and be from the same school. What is the greatest number of players Lee can put on each team?
Answer:
The answer is (12 players)
Step-by-step explanation:
2 x 2 x 3 = 12
36 - 12 = 24
b + 4.8 = 8.09
b + 4.8 x = 8.09x
b =
Find the values of x and y in the diagram. to A X = and y
Answer:
Where is the diagram?
Step-by-step explanation:
Where is the diagram?
Your restaurant bill is $28.35. Find the amount of TAX you would pay for your dinner if the tax is 6%. (Round to the nearest cent.)
Answer:
The tax is $1.70
Step-by-step explanation:
Divide 28.35 by 100 then multiply by six. This is how you reach 6%
Find the volumes of the pyramid and triangular pyramid.
Answer:
1) Volume of triangular pyramid = 33 cm³.
2) Volume of triangular prism = 99 cm³
Step-by-step explanation:
1) Volume of a triangular pyramid is given as;
V_py = ⅓Ah
Where A is area of base and h is height
We see from the diagram that;
A = 11 cm²
h = 9 cm
Thus; V_py = ⅓ × 11 × 9 = 33 cm³
2) Volume of triangular prism is given by;
V_pr = ½bhl
Where;
½bh is area of triangular cross section
l is length
We see from the diagram that ½bh = 11 cm² and L = 9 cm
Thus;
V_pr = 11 × 9 = 99 cm³
someone plz help meee
Answer:
33d
Step-by-step explanation:
33 is the total fish in each tank
d represent the number of tanks
To find the total fish we multiple 33 and d
33 x d = total fish
so 33d is the correct expression
pls help ill make brainliest
Answer:
I would say option C would float if not it is A hope this helps and plz mark as Brainlest.
Step-by-step explanation:
You put $500 in a savings account with a simple interest rate of 3%. How long did it take you to earn $30 interest?
I =
P =
r =
t = ?
Answer:
2 years.
or
2 interest rates.
Step-by-step explanation:
The interest rate is per year.
3% of 500 = 15
so it took 2 years.
Gavin bought two iPhone chargers. His reward card at the store staples save him $4. He only had to pay $16. How much money did each iPhone charger cost?
Answer:
$10 was for each charger
Step-by-step explanation:
16/2 = 8
and if you add 2 for each charger it makes 10 for each charger without the $4 discount
Write an equation of the line that passes through the given point and is parallel to the given line.
(4, 3); y = –x + 5
Remember that the standard form of a line equation is y = mx + b. Since you need a line that is parallel to y = 5x - 2, the first thing to do is use the same slope (m), which is 5 in this case.
The new line would look like this: y = 5x + b. I use "b" instead of -2, since we'll calculate a "b" for the new line by substituting the given point of (2, -1) into y = 5x + b.
-1 = 5*(2) + b
b = -11
The parallel line that goes through (2,-1) is y = 5x - 11
The new line is the blue, on the right. Note that it is parallel to the original (green) line and also intersects at (2, -1). (Each chart is is 0.5 unit).
Answer:
Remember that the standard form of a line equation is y = mx + b. Since you need a line that is parallel to y = 5x - 2, the first thing to do is use the same slope (m), which is 5 in this case.
Step-by-step explanation:
Jocelyn needs to write a 12-page paper for class. If she has already written 4 pages and can write 2 more pages per day, how many days will it take her to finish her paper?
Answer:
5 days
Step-by-step explanation:
skip counting
4, 6, 8, 10, 12 then count those and you have 5 days
Round 32629 nearest thousand
Answer:
33000
Step-by-step explanation:
this is because you have to look at 2 then look at the number next to 2 if it is 5 or above make the 2 a 3.. then the answer is 33000
Hope this helped! <3
Given the exponential equation, y = 100(1/5)x, circle the letter that accurately describes the table of values:
A. Increasing by a multiplication of 5. B. Increasing by an addition of 5.
C. Decreasing by a division of 5. D. Decreasing by a subtraction of 5.
Answer:
the answer is D.
Step-by-step explanation:
bag contains 16 balls 4 are blue. how what percentage of balls are blue ?
Answer:
25% is the answer. 4 is 25% of 16.
Jake bought some blueberries for $6 per pound and some strawberries for $4 per pound. He spent a total of $36. Which graph represents all the possible combinations of blueberries (b) and strawberries (s) that Jake could have bought?
The equation for the all-out number of blueberries and strawberries.
6x + 4y = 36
An equation is a mathematical explanation that is comprised of two expressions associated with an equal sign.
2x + 3 = 9 is an equation.
We have,
Cost of one pound of blueberries = is $6
Number of pounds of blueberries = x
Cost of one pound of strawberries = is $4
Number of pounds of strawberries = y
The equation for the all-out number of blueberries and strawberries.
6x + 4y = 36
In its most straightforward structure in algebra, the meaning of an equation is a numerical explanation that shows that two numerical expressions are equivalent. For example, 3x + 5 = 14 is an equation, where 3x + 5 and 14 are two expressions isolated by an 'equivalent' sign.
to know more about equations click here:
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Verify the identity shown below.
tan∅+cot∅=sec∅×csc∅
Answer:5
That is exactly correct! Just two things: First, tan,sin,cos, etc hold no meaning on their own, they need an argument. So just be sure to write tanx, cosx etc rather than just tan or cos.
Finally, you could save time on your proof by noticing on the fourth step that
1cosxsinx=1cosx1sinx=secxcscx
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Step-by-step explanation:
4x + 3y = 1
x - 3y = -11
Answer:
(- 2, 3 )
Step-by-step explanation:
Given the 2 equations
4x + 3y = 1 → (1)
x - 3y = - 11 → (2)
Adding the 2 equations term by term will eliminate the y- term
5x + 0 = - 10
5x = - 10 ( divide both sides by 5 )
x = - 2
Substitute x = - 2 into either of the 2 equations and solve for y
Substituting into (1)
4(- 2) + 3y = 1
- 8 + 3y = 1 ( add 8 to both sides )
3y = 9 ( divide both sides by 3 )
y = 3
solution is (2, - 3 )
Answer:
x=-2, y=3
Step-by-step explanation:
4x + 3y = 1.......... Equ 1
x - 3y = -11...........Equ 2
5x=-10
x=-2
From equ 1
4x + 3y =1
4(-2)+3y=1
-8+3y=1
3y=1+8
3y=9
y=3
Solve for the quotient 8498 / 70
Answer:
121.4 is the answer ❣️
Answer:
The answer I got is 121.4
what is the combined weight of all the kittens? 1/4 = 4 3/8=2 1/2=2 5/8=2
Answer:
5 pounds
Step-by-step explanation:
Determine whether the expression is a polynomial. If it is a polynomial state the degree of the polynomial
3z^2 - 5z + 11
The expression is a polynomial and and the degree of the polynomial(quadratic equation) is 2.
What is a polynomial expression?
A polynomial expression is an algebraic expression that takes the form [tex]\mathbf{ax^{n > 1}+bx+c}[/tex]. It consist of variables, arithmetic operator, non-integers and coefficient.
A quadratic equation is a form of polynomial equation due to the fact that it comprises of a power of x for which x is a non-negative integer. However, the degree of a quadratic equation is 2.
Learn more about polynomial expression here:
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find the first four terms of the sequence given by the following an=57-4(n-1),n=1,2,3
Answer:
57, 53, 49, 45
Step-by-step explanation:
Substitute for the n for n=1,2,3,4 so the first term is 57-4(1-1) so =57-4(0) so
a(1) = 57-0 = 57 so that is the 1st term
2nd term 57-4(2-1) so =57-4(1) so a(2) = 57-4 = 53, etc.
