Step-by-step explanation:
zx+2=6
x+2=6
x=6-2
x=4
If x is 4 then
4z+2=6
4z=6-2
4z=4
divide thru by 4
z=1
Which graph and equation shows a proportional relationship between and y? NEED HELP ASAP!!!
Answer:
y = 0.45x
Step-by-step explanation:
proportional relationships must pass through the point 0,0
both the x and y intercepts must equal 0
A duck is 2 feet below the surface of a pond. If its position can be recorded as −2 feet, what would the position of 0 represent?
A 2 feet below water
B 2 feet above water
C The bottom of the pond
D On the surface of the pond
Answer:
0 will be the right answer
Step-by-step explanation:
so im guessing either 2 feet below or the bottom of the pond
A jewelry store bought a gold necklace and marked it up 110% from the original cost of $23.52. Later on, Dean purchased the gold necklace and paid 14.75% sales tax. How much, including tax, did he pay for the gold
necklace?
9514 1404 393
Answer:
$56.68
Step-by-step explanation:
The final price is ...
(cost price) × (1 +110%) × (1 +14.75%) = (cost price)×2.10×1.1475
= $23.52×2.40975 ≈ $56.68
Dean paid $56.68 for the necklace.
Subtract the linear expressions.
(−7.6x+7.4)−(3.5x+6.5)
What is the difference?
Enter your answer in the box.
Step-by-step explanation:
-7.6x+7.4-3.5x-6.5
-7.6x-3.5x+7.4-6.5
-11.1x+0.9
Solve the system of equations by using substitution.
6r + 7s = –1
2r + 4s = –12
1) (–4, –8)
2) (–8, –4)
3) (–7, 8)
4) (8, –7)
Answer:
r = 8 and
s = -7
Step-by-step explanation:
(2r + 4s = - 12)/2 =
r +2s = -6
r = -2s - 6
Substitution:
6 (-2s -6) + 7s = -1
-12s - 36 + 7s = -1
-5s = 36-1
s = 35/-5
s = -7
6r + 7(-7) = -1
6r - 49 = -1
6r = 49-1
r = 48/6
r = 8
Find the sum and difference of the following fractions, reduce answer to lowest term if necessary
1. 3/5 + 2/5 - 1/5 =___
2. 5/15 - 3/15 + 7/15=____
3. 5 - 1 2/3=____
4.3 4/5 + 1 1/4=___
5. From the sum of 9/20 and 5 4/20, subtract 2 11/10=____
Step-by-step explanation:
please mark me as brainlest
Answer
1. 0.8..
2. 0.6..
3. 2.66..
4. 9.55..
5. -17.95..
Rocco loves making spaghetti with his grandmother. They make homemade tomato sauce by adding pureed tomatoes, sugar, salt, olive oil, and water. He notices that after he stops stirring, he sees a greasy film at the top of the red liquid. What does this tell you about his sauce mixture?
Oil floats on water because it is less dense I believe. So that would be the oil on top of the sauce(the oil is on top because of the water that was also added).
Please show the work. 5256÷52, 5624÷46, 756÷36, 2760÷12. It's a lot to do, so I'm making this 40 points.
3. For the pair of polynomials given, select all points of intersection.
f(x) = (x + 7)(x – 5)
g(x) = x-5
a. (-8, -13)
b. (-7,0)
C. (-5, -10)
d. (-6, -11)
e. (5,0)
Answer:
-6, -11 and 5, 0
Step-by-step explanation:
Graphing calculators can help you a lot with this type of Algebra. I suggest GeoGebra.org
Given f(x)=3x(to the second power)−5x−2.
What is the value of f(−23)?
1
8/3
3
10/3
Answer:
1700
Step-by-step explanation:
f(x)=(3x^2)-5x-2
f(-23)
f(-23)=3(-23)^2-5(-23)-2
=1700
Kristen babysits 38 hours a week for $6.80 per hour. She earns an additional $224.00 in tips . How much did she make in 1 week?
Answer:
$502.40
Step-by-step explanation:
Kristen works 38 hours for $6.80 per hour.
We multiply her pay and the hours she worked:
38 × 6.8 = 258.4
Thus, she makes $258.40/week
Now we add her tips, which would be the equation 258.4 + 224
258.4 + 224 = 502.4
So, she made $502.40 in 1 week
Mary borrowed $4,500 to help
pay for college. If the bank
charges a 5.5% annual interest
rate, how much interest will
Mary pay after 4 1/2 years?
Answer:
1113.75
Step-by-step explanation:
The formula for simple interest is as follows: Simple interest = principal balance x interest rate x term of the loan
P=4500
i= 0.055
t=4.5
multiplying them together we get
1113.75
The reason that this is simple interest is because compound interest increases over time as an exponential
A store owner had nine employees and bought nine hundred fifty-one uniforms for them. If he wanted to give each employee the same number of uniforms, how many more should he buy so he doesn’t have any extra?
Answer:
105
Step-by-step explanation:
Divide 951 by 9
a
1
=
3
and
a
n
=
a
n
−
1
−
1
a
1
=3 and a
n
=a
n−1
−1
Answer:????????
Step-by-step explanation:?
What are all the possible rational roots of f(0) = 2x^4+ x^3+ 4?
Answer: the answer is 4, just 4
Evaluate the expression ab2 + 2ab + a2 for a = 6 and b = 3.
a) 128
b) 126
c) 130
c) 124
Answer:
I believe there is an error with the problem
Step-by-step explanation:
3*6*2 + 2*6*3 + 6*2 = 36+36+12 = 84
The answer of the expression ab² + 2ab + a² for a = 6 and b = 3 will be 126 so option (b) will be correct.
What is an expression?
A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
An expression is a mathematical proof of the equality of two mathematical expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
Given the expression
ab² + 2ab + a²
Now,
a = 6 and b= 3
So,
⇒ 6(3)² + 2(6)(3) + 6²
⇒ 36 + 54 + 36
⇒ 126
Hence "The answer of the expression ab² + 2ab + a² for a = 6 and b = 3 will be 126".
To learn more about expression,
https://brainly.com/question/14083225
#SPJ5
Question below..................
what are the coefficient in the expression 8a+b+9
Answer:
8 is the coefficient
Step-by-step explanation:
The definition of coefficient is:
a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).
2.
Whats the answer? ( BRANLIEST )
Answer:
14/2 i think
Step-by-step explanation:
Write 5288 as a product of its prime factors
Answer:677
Step-by-step explanation i dont know
d. What is the number sentence?
Answer:
Combination of numbers and mathematical operations that children are often required to solve
HELP PLEASE. which equation describes a line parallel to line g that has a y-intercept at (0, -1)
Answer:
Line C is parallel to the given line.
Step-by-step explanation:
The given graph slopes down, and thus has a negative slope: m = -1/2.
Of the possible choices, only C has this slope: y = (-1/2)x + b. The y-intercepts b and (0, 6) need not be the same, as the quality of parallelness is all that we care about here.
7 inches high, 4 inches long, and 4 inches wide what is the area
A = 144 square inches
Step-by-step explanation:
surface area of rectangular prism :
A = 2(hℓ + ℓw + hw)
A = 2(7 · 4 + 4 · 4 + 7 · 4)
A = 2(28 + 16 + 28)
A = 2(72)
A = 144 square inches
f(x) = 732
g(x) = 3x + 2
Find
(1) (a). Include any restrictions on the domain.
, 3 > 0
OA () (x) = 0 + 0
B. (4) (z) = 2, 3
c. (4) (x) = x +
OD. () () + -1
Answer:
Option DStep-by-step explanation:
Given:
[tex]f(x) = \sqrt[3]{3x}[/tex][tex]g(x)=3x+2[/tex]Find (f/g)(x):
[tex](f/g)(x)=f(x)/g(x)=\sqrt[3]{3x}/(3x+2)[/tex]The restriction is, the denominator can't be zero:
3x + 2 ≠ 0 ⇒ 3x ≠ -2 ⇒ x ≠ -2/3Correct choice is D
A line passes through the point (−3,−10) , and it’s perpendicular to the line y=0 . Find an equation for this line.
Answer:
Step-by-step explanation:
y = 0 is actually the x axis.
All the points on the line you want have an x value of - 3
-3,-10 is actually one of those points
The equation you want is x = - 3
Summary
Rita solved a linear equation in one variable and got How many solutions does it's equation have?
How do you know?
Answer:
i!^dkk
Step-by-step explanation:
more than
Answer:
4 or less
Step-by-step explanation:
because that's how many it has
Simplify:
3 square root 216/343
Answer:
answer is .........6/7....
Answer: 6/7
Step-by-step explanation:
Hi everyone, God bless you all, I need help on this, Select each correct answer, thx.
Answer:
answer is the first one (all trapezoids are quadrilaterals)
Step-by-step explanation:
help me figure this out.
Answer:
30; -5 is 5 units away from 0 and V is 25 units away from 0, and 5 + 25 = 30.
Step-by-step explanation:
To find the distance between point T, which has a value of -5, and V, which has a value of 25, we should find the absolute value of each number and then add those numbers together.
So, the absolute value of -5 is 5 and the absolute value of 25 is 25. 25 + 5 = 30, and this is the length of TV.
If you have any further questions or need clarification on anything, let me know!
Four hundred dollars is deposited into an account that compounds interest quarterly. After 10 quarters the account balance is $441.85. Determine the nominal interest paid on the account?
Answer:
Step-by-step explanation:
(41.85:400)*100%=....