Maria needs $2.35 to buy a magazine. The only money she has is a jar of nickels and dimes. Write an equation in standard form for the different amounts of nickels and dimes she could use.
Answer:
Step-by-step explanation:
sorry need the points
-2x - 6 = 2 - 4x - (x - 1)
solve
Answer:
Step-by-step explanation:
-2x - 6 = 2 - 4x - x + 1
-2x - 6 = 3 - 5x
3x - 6 = 3
3x = 9
x = 3
The half-life of krypton-91 (91Kr) is 10 s. At time t = 0 a heavy canister contains 3 g of this radioactive gas. Find a function m(t) = m02−t/h that models the amount of 91Kr remaining in the canister after t seconds.
What is (f o g) (3) if f (x) =3x-1 and g(x) = 4x^2 -9?
Answer:
4x+1
Step-by-step explanation:
Can someone help with this problem (time sensitive)
Answer:
∠D = 52º
∠E = 32º
∠F = 96º
Step-by-step explanation:
the sum of interior angles of a triangle equals 180º
so: (x + 20) + (3x) + 32 = 180
3x + x + 20 + 32 = 180 combine like terms
4x + 52 = 180 subtract 52 from both sides
4x = 128 divide both sides by 4
x = 32
plug x into each angle measure to get them:
∠D = (32) + 20 = 52º
∠E = 32º (given)
∠F = 3(32) = 96º
Drag steps in the given order to evaluate this expression,
-3(-3+2) - 6
Answer:-3
Step-by-step explanation:
13/5 ÷ 4/5 = ??????????
what is 6/5÷7/1 can u tell me pls
Answer:
6/35
Step-by-step explanation:
6/5÷7/1=6/5 x 1/7 = 6/35
Answer:
6/35
Step-by-step explanation:
What is the leading coefficient of the polynomial f(x) defined below
Answer:
1
Step-by-step explanation:
The answer is simply 1 as the leading term, x^4 has a coefficient of 1.
0.2 =% yssssssssssssssssssssssssssssssssssssssssss
Answer:
20%
Step-by-step explanation:
If it was 0.3 it would be 30% or if it was .35 it would be 35%.
0.3 is another way of writing 0.30 but since it's just a zero, you don't really have to write 30.
Answer:
Good luck your so lucky
Step-by-step explanation:
alguien me ordena estás fracciones 1/10 4/10 6/10 14/10 10/10 8/10 de menor a mayor porfa doy corona
Responder:
[tex]\frac{1}{10},\frac{4}{10},\frac{6}{10},\frac{8}{10},\frac{10}{10},\frac{14}{10}[/tex]
Explicación paso a paso:
Dado que los denominadores son iguales, organice los numeradores.
Answer:
[tex]\frac{1}{10} ,\frac{4}{10}, \frac{6}{10}, \frac{8}{10}, \frac{10}{10}, \frac{14}{10}[/tex]
¡Espero que ayude!
Lo siento si es mal español. No soy un hablante nativo. :P
Step-by-step explanation:
I need help fast I’ll really appreciate it.
Answer:
11 : 8
Step-by-step explanation:
3 + 8 = 11
Answer:
11:8
Step-by-step explanation:
I think i may be wrong I hope this is right
PLEASE HELP MEEEEEE
f(x)=4x + 5
f (-3)
Answer:
evaluate the function with -3 as x value
Step-by-step explanation:
4(-3) + 5
-12 + 5
= -7
Answer:
The answer is -7
Step-by-step explanation:
Use the given functions to set up and simplify f ( − 3 ) .
Hoped this helped!
brainly, please?
Find the equation of the exponential function represented by the table below:
Answer:
[tex]f(x)=5(4)^x[/tex]
Step-by-step explanation:
The exponential function is [tex]f(x)=ab^x[/tex]. [tex]a[/tex] is the initial value of the function, or the y-value when x=0. In this case, [tex]a[/tex]=5. If we enter that into the equation:
[tex]f(x)=5b^x[/tex]
Then we can use another point to solve for [tex]b[/tex].
[tex]20=5b^1[/tex]
Since anything raised to the power of 1 remains the same, we can continue to solve algebraically.
[tex]20=5b\\\frac{20}{5}=\frac{5b}{5}\\b=4[/tex]
Now that we have both the [tex]a[/tex] and [tex]b[/tex] value, we can return to the exponential function and fill in the blanks.
[tex]f(x)=5(4)^x[/tex]
I hope this helps!
Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. Suppose that the temperature of a cup of coffee obeys Newton's law of cooling. If the coffee has a temperature of 185 degrees Fahrenheit when freshly poured, and 3 minutes later has cooled to 167 degrees in a room at 60 degrees, determine when the coffee reaches a temperature of 137 degrees.
Answer:
9.4 secs
Step-by-step explanation:
From Newton's law of cooling;
T(t) = Ts + Do e^-kt
Where;
D0= initial temperature difference
Ts= Temperature of the surroundings
t= time
K = positive constant
Do = 185 - 60 = 125 degrees
167 = 60 + 125 e^-3k
167 - 60 = 125 e^-3k
107/125 = e^-3k
ln(e^-3k) = ln(107/125)
-3k = -0.1555
k = 0.1555/3
k = 0.0518
Substituting the value of k to find the time taken to reach 137 degrees
T(t) = Ts + Do e^-kt
137 = 60 + 125 e^-(0.0518t)
137 - 60 = 125 e^-(0.0518t)
77 = 125 e^-(0.0518t)
e^-(0.0518t)= 77/125
ln [e^-(0.0518t)] = ln(77/125)
-0.0518t = -0.4845
t = 0.4845/0.0518
t = 9.4 secs
In the diagram below of parallelogram ROCK, m angle is 70 degrees and m angle ROS is 65 what is the value of x
Answer:
135
Step-by-step explanation:
The measure of the angle KSO is 135°
What is a parallelogram?A parallelogram is a special type of quadrilateral that has both pairs of opposite sides parallel and equal.
Given that, In the diagram below of parallelogram ROCK, m angle is 70 degrees and m angle ROS is 65
We know that, opposite angles of a parallelogram are equal,
Therefore, ∠ ORK = 70°
In triangle, SRO, ∠ ORK and ∠ ROS are interior angles, and ∠ KSO is an exterior angle,
We know, The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
Therefore, ∠ KSO = ∠ ORK + ∠ ROS
∠ KSO = 135°
Hence, The measure of the angle KSO is 135°
For more references on parallelogram, click;
https://brainly.com/question/29147156
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9) Linda and Maria share £200. Linda has 4 times as much money as Maria.
How much money does Maria have?
Answer:
40
Step-by-step explanation:
maria is x
linda is 4x
x+ 4x = 200
5x = 200
x= 40
Suppose y varies directly as x. If x = 24 when y = 8, then what is the constant of variation
Direct variation is represented by the formula [tex]\frac{y}{x} = k[/tex]
where k is the constant of variation.
So here, since we know that x = 24 and y = 8,
the constant of variation must be equal to 8/24.
if we write 8/24 in lowest terms, we have 1/3.
So 1/3 = k.
PLEASE HELP ONE QUESTION THATS IT
Answer:
-3,2 -2,4 1,-1
Step-by-step explanation:
PLEASE HELP!!
Questions and directions are in image!
Step-by-step explanation:
this is what I use go to your app store and get Math. way and type your answer in
Answer:
a) (c + 2)²
b) (x + 2)(x - 4)
c) (g + 2)(g + 6)
d) (x + 2)(x - 9)
e) (r + 9)(r + 1)
f) (x - 6)(x - 4)
Step-by-step explanation:
graph the function. Then State the domain and range. Also increasing and decreasing
Answer:
See below, I will let graphing part to yourself.
Step-by-step explanation:
First function: domain: [tex][-9,\infty)[/tex], range: [tex](-\infty, -2][/tex], decreasing
Second function: domain: [tex](-\infty, \infty)[/tex], range: [tex](-\infty, \infty)[/tex], increasing
Third function: domain: [tex][3, \infty)[/tex], range: [tex][-5,\infty)[/tex], increasing
Answer:
First function: domain: [-9,\infty)[−9,∞) , range: (-\infty, -2](−∞,−2] , decreasing
Second function: domain: (-\infty, \infty)(−∞,∞) , range: (-\infty, \infty)(−∞,∞) , increasing
Third function: domain: [3, \infty)[3,∞) , range: [-5,\infty)[−5,∞) , increasing
si Luis ocupa una butaca de tren absorto
. luis está quiero o avanza
Answer:
quiero
Step-by-step explanation:
Combine like terms. Your answer should contain decimals.
0.5(x4-5)+12
4 is a power
Answer:
0.5x⁴ - 9.5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
0.5(x⁴ - 5) + 12
Step 2: Simplify
Distribute 0.5: 0.5x⁴ - 2.5 + 12Combine like terms: 0.5x⁴ - 9.5early says that m ×(-1) is always equal to m ÷(-1) for all rational values of m. is he correct
Answer:
The equation are true.
Step-by-step explanation:
Given
[tex]m * (-1) = m / (-1)[/tex]
Required
True or false?
We solve this question from right to left:
[tex]m * (-1) = m / (-1)[/tex]
Express / as *
[tex]m * (-1) = m * 1/(-1)[/tex]
[tex]m * (-1) = m * (-1)[/tex]
The expression on both sides of the equation are true.
x + 7 = 9
What does X equal?
Complete the statement to illustrate the commutative property. (PLEASE ANSWER FAST FOR BRAINLIEST!!!)
10 + (9 + 11) = 10 + (11 + ___ )
a. 11
b. 20
c. 9
d. 10
Answer:
9
Step-by-step explanation:
4
Write an exponential decay
equation with a rate of 25% and
an initial value of 6.
The model below is shaded to represent 9/10
Answer:
0.9
Step-by-step explanation:
Solve the linear equation 3+5x=3
Step-by-step explanation:
the answer is
3+5x=3
5x=0
x=0
Eva is going to the amusement park, where she has to pay a set price of admission and another price for tickets to go on each of the rides. The total amount of money Eva will spend is given by the equation y=26+1.5x. , where y represents the total amount of money, in dollars and cents, and represents the number of rides Eva goes on . What could the number 1.5 represent in the equation ?
Answer:
B. The change in the total amount if money for every one additional ride she goes on
Step-by-step explanation:
Given,
y = 26 + 1.5x, where,
y = total amount of money Eva will spend
x = number of rides Eva rides on
Thus,
Set price of admission into the amusement park = $26
Price per ride = $1.5
Therefore, the 1.5 I'm the equation can be said to be "the change in the total amount if money for every one additional ride she goes on".