Answer:
3x-2
Step-by-step explanation:
Kevin has 3x-2 coins because 3 times the amount that Karen has is 3x and he has 2 coins fewer so that's -2.
explain how to write 2 dividid 5 as a fraction
Answer:
2/5
Step-by-step explanation:
Two divided by 5 is simply written as 2/5.
Hope I helped!
If a 20-foot tree casts a 40-foot shadow, how tall is a tree that casts a 48-foot shadow?
Complete the statement by filling in the blanks. The null hypothesis H0 is the statement of _________ and always has a ______ sign. The alternative hypothesis Ha is the __________ hypothesis. It is a statement about the value of a __________ that we intend to test. Group of answer choices
Answer:
No change ; = ; research ; parameter
Step-by-step explanation:
The Null hypothesis in a statistical test is always the initial truth which always means that a research scenario or statement is as it is or that there is no change whatsoever. The null hypothesis is usually denoted as H0 ; because it is always the initial truth or accepted claim, it usually takes a equal to sign, this denotes that, there is no change in parameter, either the population mean or any other statistical measure we wish to test. The alternative hypothesis on the other hand always negated the null hypothesis, because it brings up a claim which is to check or peruse the Null hypothesis, hence, it is a research hypothesis, denoted as Ha: ;
The alternative hypothesis contains the statement about the population parameter we wish to test( parameter is a measured value about the population).
What is the simplified form of this expression?
(5x2 + 2x + 11) − (7 + 4x − 2x2)
Answer:
7x² - 2x + 4
Step-by-step explanation:
(5x² + 2x + 11) - (7 + 4x - 2x²) = 5x² + 2x + 11 - 7 - 4x + 2x² =
(5x² + 2x²) + (2x - 4x) + (11 - 7) = 7x² - 2x + 4
1b) What is Laura's average speed in mph if she travels 126 miles in 2 hours?
Answer:
63MPH
Step-by-step explanation:
Answer:
126miles divide by 2hrs = 63mph
What is the measure of the missing angle?
Answer:
42 or 48
Step-by-step explanation:
It's a acute angle so it's that one or that one.
Answer:
42 degrees
Step-by-step explanation:
180-132 = 48
90 + 48 = 138
180 - 138 = 42
f(x) = x2 + 6x + 4
What is the increasing and decreasing
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Answer:
decreasing: (-∞, -3)increasing: (-3, ∞)Step-by-step explanation:
The leading coefficient is positive, so you know the parabola opens upward.
The ratio -b/(2a) is -6/(2·1) = -3, so you know the axis of symmetry is x = -3. The function will be decreasing from negative infinity to the vertex at x = -3, and will be increasing from there to positive infinity. At the vertex (x=-3), the function is neither increasing nor decreasing.
decreasing: (-∞, -3)increasing: (-3, ∞)_____
Additional comment
For ax^2 +bx +c, the axis of symmetry is x=-b/(2a). The vertex (turning point) is on the axis of symmetry.
Olivia needs 545454 licks for every 333 lollipops she eats.
Answer:
54 lick per 3 lollipops is a unit rate of 18 licks per lollipop.
36 is 2 times 18, so it needs 2 times as many licks as 18 lollipops.
36 2
I assume the last line is 5 lollipops.
If 1 lollipop takes 18 licks, then 5 lollipops take 5 * 18 licks.
5 * 18 = 90
90 5
Answer: i think 2 because 90 divided by 5 is 18 and 54 divided by 3 is 18 so
Step-by-step explanation:
Find the centroid of AABC if
A = (1, 1), B = (4, 5), and C = (4, 6).
([?], [ ]
pls help lol
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Answer:
(3, 4)
Step-by-step explanation:
Put the numbers in the formula and do the arithmetic.
Q = (A + B + C)/3
Q = ((1, 1) +(4, 5) +(4, 6))/3 = (1+4+4, 1+5+6)/3 = (9, 12)/3
Q = (3, 4)
The centroid is (3, 4).
Samantha lost 15 pounds in 6 weeks.
Can someone teach me this ASAP?
HELP I WILL GIVE BRAINLIEST PLEASE HELP
I need help with this I will mark u as brainliest
Answer:
table 2
Step-by-step explanation:
im not fully sure if this is correct
I need help with this
Answer:ooop
Step-by-step explanation:
Shshjaasksk
Answer:
3 to the 5th power would be 243.
1.
El año pasado, un orador motivacional llamado Rhiannon dio 20 charlas en el extranjero. Este año, dio
13 charlas en el extranjero. ¿Cuál es el porcentaje de disminución de las charlas en el extranjero del
año pasado a este año?
A. 75%
B. 40%
C. 35%
another way to write (6+7)x
Answer:
13x
Step-by-step explanation:
you just have to add the six and the seven together and then add the x
Answer:
what that person said
Step-by-step explanation:
y=3x+5
y=4x+8
Find X
Answer:
The value of x is -3.
Step-by-step explanation:
It is given that:
y=3x+5 Eqn 1
y=4x+8 Eqn 2
Putting value of y from Eqn 2 in Eqn 1
4x + 8 = 3x + 5
4x - 3x = 5 - 8
x = -3
Therefore,
The value of x is -3.
What is the constant of proportionality?
y = 11x
Please I need help I have to turn this in today!
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Answer:
11
Step-by-step explanation:
The constant of proportionality is the coefficient of x in the equation.
It is 11.
(03.05 HC)
In a dance competition, a participant has to score a total of at least 30 points in the first four rounds combined to move on to the fifth and final round. Steward scored 5 points in the first round. He then went on to score additional points in the second, third, and fourth rounds. In each of those rounds, his score was identical. Which inequality best shows the number of points, p, that Steward scored in each of the second, third, and fourth rounds if he earned a place in the finals? (1 point)
a
5 + 3p ≥ 30
b
5 + 3p ≤ 30
c
5p + 3 ≥ 30
d
5p + 3 ≤ 30
Given:
Score in first round = 5 points
Score in second, third and fourth rounds was identical.
A participant has to score a total of at least 30 points in the first four rounds combined to move on to the fifth and final round.
To find:
The inequality for the given problem.
Solution:
Let p be the number of points, p, that Steward scored in each of the second, third, and fourth rounds.
Score in first 4 rounds = Score of 1st round + Score of 2nd round + Score of 1s 3rd round + Score of 4th round
Score in first 4 rounds [tex]=5 + p + p + p[/tex]
[tex]=5 +3p[/tex]
A participant has to score a total of at least 30 points in the first four rounds combined to move on to the fifth and final round. It means the total score in first 4 rounds must be greater than or equal to 30.
[tex]5+3p\geq 30[/tex]
Therefore, the correct option is A.
Answer:
A
Step-by-step explanation:
Fill the blanks in please and thanks
Answer:
Angles are the same, So:
C = G = 125
H = D = 75
A = E = 360 - ( 90+75+125) = 70
To know the ratio between the lengths. Divide 6 by 9 so you get 2/3
So every side of small polygon equals 2/3 times side of big polygon. ( THE PARALLEL ONES )
So:
FG = 7* 2/3 = 14/3
GH = 11 * 2/3 = 22/3
EH = 12 * 2/3 = 8
[ +
−2
2−3+2
−
+−2
2+4−5
] ÷ [
2+3
2+3−10]
Answer:
I'm not sure if this is a real problem and I don't think it is but the answer is 6.5
Step-by-step explanation:
first you have to add -2 and 2, then plus 3 and 2 and subtract 2 from it and then and 2+4 and subtract -5 and divide 2 and add 3 and add the answer to al of that to 2 + 3 and subtract - 10 and you get your answer of 6.5
Isaiah has h baseball cards. Michael gas 7 more baseball cards than Isaiah. Write an expression for the number baseball cards that Michael has in terms of h
Answer:
h + 7
because if Michael has 7 more than you just add 7 to Isiahs unknown
use the elimination method to solve the following system of equations
2x+y=7
6x-y=9
Answer:
x=2
Step-by-step explanation:
We see that there is already a common variable that can be canceled out -- y. y+(-y)=0! (Alternatively you may also multiply an equation by negative 1 and do subtraction, but in this case it's already done for you)
So now we just do some addition.
2x+6x=8x
y+(-y)=0
7+9=16
This means that 8x=16. Now we solve!
(Divide both sides by 8)
We're left with x=2 :)
PLEASE HELP PLEASEEEEEE
Answer:
The answer is B. Beta Mart
Step-by-step explanation:
First you convert everything to pints. So that would be:
Alpha - 2 pints is $1
Beta - 8 pints is $3
Gamma - 1 pint is $0.54
Delta - 4 pints is $1.86
Then you find the unit rate of each. That would be:
Alpha - 1 pint is $0.50
Beta - 1 pint is $0.375(0.38)
Gamma - 1 pint is $0.54
Delta - 1 pint is $0.465(0.47)
Whichever unit rate is the least (Beta Mart) has the lowest rate. Even though it says ounces, it would still be the same answer.
which statement about these triangles is true?
Answer:
I think it's D
Step-by-step explanation:
Answer:
i think it's a or d
but d is more have percent
Find the Area of the figure below, composed of a parallelogram and one semicircle. Rounded to the nearest tenths place
Please help see the picture
Step-by-step explanation:
Area of Figure
= Area of Parallelogram + Area of Semicircle
= (26)(13) + 0.5π(24/2)²
= 338 + 72π
= 564.2.
Answer:
Area of the figure :---
Area of the parallelogram+area of the semicircle
(26×13)+(1/2)π(12)²
=338+72π
=338+226.2
=564.2 square unit
564.2 square unit is the right answer.Which of the following is the graph of y= -√ x + 1?
Answer:
check
Step-by-step explanation:
y intercept = (0,1)
x intercept = (1,0)
Answer:
Answer below hopes it helps
Step-by-step explanation:
find the area and perimeter of a 30-gon with a radius of 1
Answer:
Here :D
Step-by-step explanation:
look at one of the 30 central triangles.
Each will be isosceles with a vertex angle of 12°
base^2 = 1^2 + 1^2 - 2(1)(1)cos12°
= 2 - 2cos12°
so the perimeter is 30(2 - 2cos12°)
= 60 - 60cos12°
use your calculator if you need a decimal answer.
Find the perimeter of the polygon.
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Answer:
30 in
Step-by-step explanation:
The enclosing rectangle is 4 by 10, so has a perimeter of ...
P = 2(L+W) = 2(10+4) = 28
The notch adds 2 inches to the perimeter, so the total of all side lengths is ...
28 +2 = 30 . . . inches
y+7x+4(2x-6)+3y PLEASE ANSWER ASAP with work I would love if it was written in paper if not that's ok