Answer: The sample loses 7/8 of its mass every 2.05 months.
Step-by-step explanation:
I got it right on khan academy
can someone help? please
True or False: A system of two equations in two variables whose graphs are a parabola and a circle can have four real ordered-pair solutions.
The parabola can intersect the circle four times as the graph shows below. Each intersection point is a solution in the form (x,y).
Solve the following inequality for n. Write your answer in simplest form.
1+4(-6n-4)<10n+4-n
Answer
n>- 19/33
1 Simplify 10n+4-n10n+4−n to 9n+49n+4.
1+4(-6n-4)<9n+41+4(−6n−4)<9n+4
2 Expand.
1-24n-16<9n+41−24n−16<9n+4
3 Simplify 1-24n-161−24n−16 to -24n-15−24n−15.
-24n-15<9n+4−24n−15<9n+4
4 Add 24n24n to both sides.
-15<9n+4+24n−15<9n+4+24n
5 Simplify 9n+4+24n9n+4+24n to 33n+433n+4.
-15<33n+4−15<33n+4
6 Subtract 44 from both sides.
-15-4<33n−15−4<33n
7 Simplify -15-4−15−4 to -19−19.
-19<33n−19<33n
8 Divide both sides by 3333.
-\frac{19}{33}<n−
33
19
<n
9 Switch sides.
n>-\frac{19}{33}n>−
33
19
Done
Is table values represents a function of f(x) =3x -4 what statement explains why she is correct or incorrect?
2(4q+3)=4q-14
What is q?? HELP ASAP.
( Also show step by step please. )
what is the y- int of 27x-9y = 27
The y-intercept is (0,-3)
The x-intercept is (1,0)
Answer:the y-intercept is (0,-3)
Step-by-step explanation:use the slope intercept form y=mx + b to find y intercept
Mrs Lim hod 5245
She spent $78 and gove $36 to her son
How much money did Mrs Lim have in the end?
Answer:
$5,131
Step-by-step explanation:
First, add together the values of the money she lost:
78 + 36
= 114
Then, subtract this from her total amount:
5245 - 114
= 5131
So, in the end, Mrs. Lim had $5,131
Answer:
$5131
Step-by-step explanation:
First, break down the word problem. Mrs. Lim had $5245, spent $78, and gave $36 away to her son. Next, set up an equation.
5246 - 78 - 36 = ?
$5131
Linear Equations with explanation plz
A student wrote four statements during math class. Which statement contains an error?
Answer:
C
Step-by-step explanation:
The answer is C if you multiply (a)38×18=684
(b)46×16=736 (c)54×14=756 the question is 766 miles meaning that c is the wrong answer .i hope this was helpful.
please use ( y = mx +b )
Answer:
y= 2/5-1
Step-by-step explanation:
You get the 2/5 because you go 2 to the right and go 5 up, the -1 is because the x-int is at -1.
A wheel has a radius of 13”; calculate the circumference.
Answer:
81.71"
Step-by-step explanation:
Circumference = 2*pi*radius
pi = 22/7
radius = 13
Circumference = 2*22/7*13 = 44*13 / 7 = 572/7 = 81.71"
Select a symbol to compare the numbers
What is the range of the function?
Answer:
B. 2, 6, 8
Step-by-step explanation:
I just learned this
Joseph received a $20 gift card for downloading music. Each downloaded song costs $1.29. Explain how to write and solve an inequality that can be used to determine the number of songs that he can purchase.
Interpret the solution.
Answer:
Step-by-step explanation:
Answer:
Let x be the number of songs downloaded.
Each song is $1.29; the total cost would be found by multiplying the cost by the number of songs, or 1.29x.
This cannot be more than 20, so we set this less than or equal to 20:
1.29x ≤ 20.
To solve this, we divide both sides by 1.29:
≤ ;
x ≤15.5.
We cannot download half of a song, so we round this down to 15 (although the number rounds up mathematically, he would not have enough money to download 16 songs). This means he can download at most 15 songs.
Step-by-step explanation:
if you want the sample response then here: If x represents the number of downloads, you can write the inequality 1.29x ≤ 20. Solving the inequality, you find that x is less than or equal to about 15.5. Since he can’t download part of a song, Joseph can download 15 or fewer songs.
for BOYS only, 12*12+13+78-90+56
Answer:
201
Step-by-step explanation:
Answer:
201
Step-by-step explanation:
write 600 as a product of a prime factor give your answer in index form
Answer:This is problems on common factors.
(a) 600 = 2 × 2 × 2 × 3 × 5 × 5
= 2³ˣ 3 ˣ 5²
(b) The highest common factors could be calculated using factors methods and the divisional methods.
Here we go.
(i) 600 = 2³ ˣ 3 ˣ 5²
1050 = 2 ˣ 3 ˣ 5² ˣ 7, the highest common factor HCF will be
HCT = 2 ˣ 3 ˣ 5²
= 150.
The divisional methods.
600) 1050 ( 1
- 600
------
450 ) 600 ( 1
- 450
------
150 ) 450 ( 3
- 450
------
000
So the answer is 150, the principle is that you continue to divide and subtract until you arrive at zero.
Answer = 150
If this is incorrect you should report my answer... Hope this was helpful... Stay safe and have a great weekend!!! :D
is y=0.3x proportional
Answer:
yes
Step-by-step explanation:
helpppppp pls i really do
Answer:
domain: -3 < x <2
range: -2 < x < 4
Step-by-step explanation:
domain is the total x values and range is the total y values
Working alone it takes jull 8.4 hours to pick forty bushels of apples. Maria can pick the same amount in 15 hours.If the worked together how long would it take them
Answer: 5.39 hours
Step-by-step explanation:
For Jill:
Number of hours used = 8.4 hours
Number of bushels of apples picked = 40
Number of bushels of apples picked per hour will be: = 40/8.4 = 4.7619
For Maria:
Number of hours used = 15 hours
Number of bushels of apples picked = 40
Number of bushels of apples picked per hour will be: = 40/15 = 2.6667
We then add the number of bushels of apples picked per hour for both of them together. This will be:
= 4.7619 + 2.6667
= 7.4286
If they worked together, the hours they'll take to pick 40 bushel of apples will be:
= 40/7.4286
= 5.39 hours
What is this rational function?
Answer:
A rational function is any function which can be written as the ratio of two polynomial functions, where the polynomial in the denominator is not equal to zero. The domain of f(x)=P(x)Q(x) f ( x ) = P ( x ) Q ( x ) is the set of all points x for which the denominator Q(x) is not zero.
Hope this helps!!! :D
9514 1404 393
Answer:
f(x) = (x^2+2)/(x-1)
Step-by-step explanation:
In simplest form, it will be a quadratic divided by (x-1). The quadratic must have no zeros, and a y-intercept of 2.
One such could be ...
f(x) = (x^2 +2)/(x -1)
__
The numerator polynomial must have no zeros in order to prevent the rational function from having zeros. It must be a function that has a degree an odd number greater than the denominator function. The denominator function can have only one zero, at x=1. The ratio of the functions must have a net odd degree and the overall leading coefficient must be positive in order to make the end behavior match the requirement.
Use the information to answer the following question.
The table shows the cost of various products at a store.
Item Cost
T-Shirt 0.75x
Jeans 4x-5
Hat 2x+4
Gary has (10x + 7) dollars. If Gary decides to buy two pairs of jeans, what expression can be written to represent how much money Gary will have leftover after the purchase? Write the expression and then simplify the expression. (Explain)
the graph below represents y, the cost in dollars of x pounds of salad at a salad bar what is the unit for the cost of salad at the salad bar?
a) $0.50 per pound
b) 1.00 per pound
c) 2.00 per pound
d) 4.00 per pound
Answer:
D
Step-by-step explanation:
Took This Test Too :P
Answer: It’s $4.00
Step-by-step explanation:
Triangle A″B″C″ is formed using the translation (x + 2, y + 0) and the dilation by a scale factor of one half from the origin. Which equation explains the relationship between segment AB and segment A double prime B double prime? coordinate plane with triangle ABC at A negative 3 comma 3, B 1 comma negative 3, and C negative 3 comma negative 3 segment A double prime B double prime = segment AB over 2 segment AB = segment A double prime B double prime over 2 segment AB over segment A double prime B double prime = one half segment A double prime B double prime over segment AB = 2
Answer:
A. segment A double prime B double prime = segment AB over 2Step-by-step explanation:
Triangle ABC with coordinates of:
A = (-3, 3), B = (1, -3), C = (-3, -3)Translation (x + 2, y + 0), coordinates will be:
A' = (-1, 3), B = ( 3, -3), C = (-1, -3)Dilation by a scale factor of 1/2 from the origin, coordinates will be:
A'' = (-0.5, 1.5), B'' = (1.5, -1.5), C= (-0.5, -1.5)Let's find the length of AB and A''B'' using distance formula
d = √(x2-x1)² + (y2 - y1)²AB = √(1-(-3))² + (-3 -3)² = √4²+6² = √16+36 = √52 = 2√13A''B'' = √(1.5 - (-0.5)) + (-1.5 - 1.5)² = √2²+3² = √13We see that
AB = 2A''B''Now the answer options:
A. segment A double prime B double prime = segment AB over 2
CorrectB. segment AB = segment A double prime B double prime over 2
Incorrect. Should be AB = A''B''*2C. segment AB over segment A double prime B double prime = one half
Incorrect. Should be AB/A''B'' = 2D. segment A double prime B double prime over segment AB = 2
Incorrect. Should be A''B''/AB = 1/2Answer:
A. segment A double prime B double prime = segment AB over 2
Step-by-step explanation:
Which of these possible values of x: 5, -5, 12, 15, 0
make the inequality: -3
Answer:
12 i think
Step-by-step explanation:
Edward deposited $6,000 into a savings account 4 years ago. The simple interest rate is 3%. How much money did Edward earn in interest?
Answer:
$720
Step-by-step explanation:
Use the simple interest formula and plug in each variable into the formula
I=PRT
P=$6000
R=3% (0.03)
T=4 years
The degree of the product is the
of the degrees of the factors.
Answer:
Sum
Step-by-step explanation:
Answer:
Sum
Step-by-step explanation:
Sum reason it is
Solve for x. Please answer correctly !!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Sum of the angles on a line is 180
[tex](6x + 4) + 90 + (5x - 2) = 180 \\ 11x + 92 = 180 \\ 11x = 180 - 92 \\ 11x = 88 \\ x = \frac{88}{11} \\ \\ x = 8[/tex]
Hope this will help....
lauren wants to build a model airplane using a scale where 2 inches represents 15 feet. if the airplane is 75 feet long how many inches long should the model be?
Answer:
Its 10
Step-by-step explanation:
Find the slope of the line with the 2 points (0,-10)(5,-5)
Answer:
[tex]\frac{4}{5}[/tex]
Step-by-step explanation:
[tex]M=\frac{x2-x1}{y2-y1}[/tex]
[tex]M=\frac{5-1}{-5-(-10)}[/tex]
[tex]M=\frac{4}{5}[/tex]
Si sabemos que en una progresión aritmética el sexto término es 29 y la diferencia es 9. ¿Cuál es el primer término?
Answer:
-16
Step-by-step explanation:
De nada
