Answer:
The equation is not correct because the statement indicates that they charged $150 to clean one house which means that the equation showed that the earnings were the result of multiplying the price to clean one house for the number of houses cleaned, which is:
e=150h
As the statement indicates that they plan to raise their fees and they will charge $175 to clean each house, this means that the price changes from 150 to 175 and you have to replace this in the formula and because of this the new equation would be:
e=175h
The equation the owners wrote is not right because it shows that the earnings are equal to a fixed charge of $150 plus a price of $25 for the number of houses and the statement says that the price is $175 for each house so the number of houses cleaned should be multiplied for that price.
what is -2 x 3 i do not understand this and this is my last problem
Answer:
-6
Step-by-step explanation:
if they were both positive numbers, it would be 6. But when you multiply a negative by a positive, the answer is negative.
Answer:
-6
Step-by-step explanation:
When you multiply a positive number by another positive number, you will always get a positive number as your answer. Same thing for negative. If you multiply a negative by a negative, you will always get a positive. However, when you multiply a negative by a positive, you will always get a negative number.
Since you know this, you can multiply 2 by 3, which is 6. Because 2 is negative and 3 is positive, you know that the answer must be negative. Therefore, you add the negative symbol to 6, giving you -6.
I hope this isn't too confusing. Please let me know if you have any more questions. Good luck!
Tyler and Daniel each deposited money into different banks with different savings plans. Tyler went to
Bank 1 and deposited $500. Daniel went to Bank 2 and deposited $1500. The graph above shows how
much money is in each savings account after 14 years. According to the graph, who will have more money
by year 20, and why?
Daniel, because his money is increasing exponentially.
O Daniel, because his money is increasing linearly.
O Tyler, because his money is increasing exponentially
Tyler, because his money is increasing linearly
Answer:
C
Step-by-step explanation:
Tyler, because his money is increasing exponentially.
I finished taking the test and got it right :)
The person who will have more money by year 20 is given by: Option C: Tyler, because his money is increasing exponentially
What are exponential functions?When the expression of function is such that it involves the input to be present as exponent (power) of some constant, then such function is called exponential function. There usual form is specified below. They are written in several such equivalent forms.
For example, [tex]y = a.b^x[/tex] , where a is a and b are constants is an exponential function.
How to calculate simple interest's amount?If the initial amount (also called as principal amount) is P, and the interest rate is R% annually, and it is left for T years for that simple interest, then the interest amount earned is given by:
[tex]I = \dfrac{P \times R \times T}{100}[/tex]
How to calculate compound interest's amount?If the initial amount (also called as principal amount) is P, and the interest rate is R% per unit time, and it is left for T unit of time for that compound interest, then the interest amount earned is given by:
[tex]CI = P(1 +\dfrac{R}{100})^T - P[/tex]
The final amount becomes:
[tex]A = CI + P\\A = P(1 +\dfrac{R}{100})^T[/tex]
Usually these two rates are used on money. The compound interest is exponential as it has power T as a variable, but for simple interest, there is no variable exponent.
Both are positive, and growth of exponential function is always going to surpass the growth of linear function (can be proven by derivatives).
Since we are not given the function's equation, we cannot correctly calculate the value just from graph, but as in 14 years, the blue line is already close to red line so it will likely cross it after 6 more years (thus total 20 years) because of good growth.
Thus, the person who will have more money by year 20 is given by: Option C: Tyler, because his money is increasing exponentially
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Determine the lateral and total surface area of the pyramid
Answer:
where are the numbers?
Step-by-step explanation:
Answer:
Ur in collage??
Step-by-step explanation:
Im in middle school learning this!! and what r the numbers?
(2a^3 b^4) ^4=
What is the answer to this problem ?
Answer: 16a^12 b^16
Step-by-step explanation:
Everything in the parenthesis to the 4th power.
2a^4= 16a
3*4=12
b^4*4=b^16
pleaseeeee help me thank you
Answer:
Step-by-step explanation:
3³ × 4³ = (3×4)³ = 12³
:::::
3⁴ × 3³ = 3⁴⁺³ = 3⁷
:::::
3⁴ × 4³ = 3 × 3³ × 4³ = 3 × (3³ × 4³) = 3 × 12³ < 12¹²
The perimeter of a rectangle is
30m. The length of the rectangle is
3 m more than twice the width. Find
the dimensions of the rectangle
a. 3m x 12m
b 4m x 11m
c 8m x 7m
d 6m x 9m
Equation for Perimeter of a rectangle: Perimeter = 2W + 2L
Defining the variables, let
Width = xLength = 2x+3 (3 more than twice the width)
Plugging everything into the equation
30= 2(x) + 2(2x+3) using the distributive property,30=2x+4x+6 combining like terms30=6x+6 subtracting 6 from both sides,24=6x divide both sides by 64=x This means that the width is 4 m.To get the length, use the expression L=2x+3 and plug in x = 4 that was already solved forL=2(4)+3L=8+3 = 11 m
So the dimensions of the rectangle are width is 4 m and length is 11 m.
need some help please :)
Answer:
B) No
Step-by-step explanation:
10²+15²is not 20²
so its B
Which of the following shows the graph of y = 4^x+ 3?
Answer:
the graph of y=4 x+3 is a straight line that passes through the point (0,3) and (0
Step-by-step explanation:we can clearly see that the graph of y=4x+3 is a straight line that passes through the x and y axes at the point -0.75 and 3 respectively.hence we could also say that it is a extended line of the line segment passing through (0,3) and (-0.75,0).
The graph is plotted in the 1 ,2 and 3 quadrant.
Answer:
The graph for that would look like this
Step-by-step explanation:
Pls help i really need this
Answer:
5/7
Step-by-step explanation:
take the basic fact 5 - 3
Answer:
5/7
Step-by-step explanation:
3/7+2/7=5/7
5/7-3/7=2/7
Convert 5.5 feet to inches. There are 12 inches in 1 feet.
Answer:
GIVE BRAINLIEST PLZ
Answer:66
Step-by-step explanation:
5.5* 12=66
There you go
Maria is fencing a rectangluar garden with 32 feet of fence. She must use all the fence material she has and must fence all four sides of the
rectangle.
Which dimensions would give her the largest area?
a
16x16
32x1
8x8
Ос
d
4x12
e
6x10
Which system of inequalities is shown?
ABCDE~GHJDF. complete the statements
i figured out a. is angle B but i cant figure out statement 2 pls help!!!!
Answer:
DC
Step-by-step explanation:
If you consider that we're looking at the same shape at two different scales, then we can simply look at which sides correlate with one another.
In the smaller shape, GH is in the same place as AB in the bigger one.
Similarly, the smaller shape has DJ in the same place that the larger one has DC. This means that dC is the answer to question b.
Sara’s teacher gave her class 10 quizzes, each worth 30 marks. Sara’s marks on the test are given below.
16,15,18,16,17,4,18,19,18,15
Determine the mean, median and mode of her marks.
Answer:
The mean is 6.6
The median is 16
mode is 18
Step-by-step explanation:
I'm not sure if this is tight but yeah:)
HELP! 100 points and brainliest
Answer:
ok
Step-by-step explanation:
Answer:
I need 1 Brainliest before I can become Virtuoso
Step-by-step explanation:
subtraction of fractions 7 1/4 - 2 1/8 =
Answer:
Exact form: 41/8
Decimal: 5.125
Mixed Fraction: 5 1/8
Answer:
5 1/2
Step-by-step explanation:
I'm not sure if I'm right but I did 7-2
and 1/4 is 1/2 of an 8th. You might have to wait for someone who is fully sure about the question
Find the ratio of the similar figure (red to blue) for the perimeter and area
15
6
What is the Perimeter and area
a Hyundai Accent cost $10,000
thats cool to know!!!!!
How many negative real zeros does f(x) = x^5 - 2x^4 - 4x^3 + 4x2 – 5x + 6 have?
A. 3
B. 2
C. 1
D. 0
solve (x- 4.5)/2=5.5 for x
please help asap
Answer:
x=31/2
Step-by-step explanation:
don't have steps but its right.
Answer:
x = 31/2 = 15 1/2 = 15.5
Step-by-step explanation:
(x- 4.5)/2=5.5
Multiply both sides by 2.
x−4.5=5.5×2
Multiply 5.5 and 2 to get 11.
x−4.5=11
Add 4.5 to both sides.
x=11+4.5
Add 11 and 4.5 to get 15.5.
x=15.5
Cherie writes an expression with 4 terms. Three of the terms are like terms. How many
terms are in the equivalent expression with the least number of terms? Explain your
reasoning.
Answer:
like terms are terms that contains same variable
The required equivalent expression with the least number of terms has 2 terms.
What is a number system?A number system is described as a technique of composing to represent digits. It is the mathematical inscription for describing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special presentation of every digit and describes the arithmetic structure.
Here,
If three of the terms are like terms, then we can combine them into a single term. Let's say that the expression with 4 terms is:
a + b + c + d
where a, b, and c are like terms. Then we can combine them to get:
(a + b + c) + d
which is an expression with only 2 terms.
So the equivalent expression with the least number of terms has 2 terms. We can do this by combining the like terms to simplify the expression.
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What rule is used to simplify exponents when multiplying polynomials?
Answer:
product rule
To multiply exponential terms with the same base, simply add the exponents. Simplify. The base of both exponents is a, so the product rule applies. Add the exponents with a common base
I need help with #6 please.
9514 1404 393
Answer:
6. (A, B, C) ≈ (112.4°, 29.5°, 38.0°)
7. (a, b, C) ≈ (180.5, 238.5, 145°)
Step-by-step explanation:
My "work" is to make use of a triangle solver calculator. The results are attached. Triangle solvers are available for phone or tablet and on web sites. Many graphing calculators have triangle solvers built in.
__
We suppose you're to make use of the Law of Sines and the Law of Cosines, as applicable.
6. When 3 sides are given, the Law of Cosines can be used to find the angles. For example, angle A can be found from ...
A = arccos((b² +c² -a²)/(2bc))
A = arccos((8² +10² -15²)/(2·8·10)) = arccos(-61/160) = 112.4°
The other angles can be found by permuting the variables appropriately.
B = arccos((225 +100 -64)/(2·15·10) = arccos(261/300) ≈ 29.5°
The third angle can be found as the supplement to the other two.
C = 180° -112.411° -29.541° = 38.048° ≈ 38.0°
The angles (A, B, C) are about (112.4°, 29.5°, 38.0°).
__
7. When insufficient information is given for the Law of Cosines, the Law of Sines can be useful. It tells us side lengths are proportional to the sine of the opposite angle. With two angles, we can find the third, and with any side length, we can then find the other side lengths.
C = 180° -A -B = 145°
a = c(sin(A)/sin(C)) = 400·sin(15°)/sin(145°) ≈ 180.49
b = c(sin(B)/sin(C)) = 400·sin(20°)/sin(145°) ≈ 238.52
The measures (a, b, C) are about (180.5, 238.5, 145°).
Keisha and Angelica bought a basket of apples. Keisha bought 5
4
pounds. If together, they bought 19
4
pounds of apples, how many pounds of apples did Angelica buy?
Let A = the number of pounds of apples Angelica bought.
A bar diagram. The top bar is blank. The bottom 2 bars contain A and blank.
What is the equation that models this scenario?
How many pounds of apples did Angelica buy?
Answer:
What is the equation that models this scenario?
✔ A + 5/4 = 19/4
and
How many pounds of apples did Angelica buy?
✔ 14/4 = 7/2
Step-by-step explanation:
Hope this helps!! :)
The equation A + 5/4 = 19/4 represents the number of pounds of apples Angelica bought, and the number of apples Angelica bought is 7/2 pounds.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Let A = the number of pounds of apples Angelica bought.
Then the model that represents the number of pounds of apples Angelica bought:
A + 5/4 = 19/4
A = 19/4 - 5/4
A = 14/4 = 7/2 pounds
Thus, the equation A + 5/4 = 19/4 represents the number of pounds of apples Angelica bought and the number of apples Angelica bought is 7/2 pounds.
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Sandra buys stamps that cost $0.65 each she spends a total of $158.60 on the stamps. To determine how many stamps she buys, she needs to divide $158.60 by $0.65
Answer:
True
Step-by-step explanation:
When she divides both numbers, she can find out how many stamps she bought. When you solve the equation, we can see that she bought 244 stamps. We can check this by doing inverse operations. 244 x 0.65 (the price for each stamp) = 158.60
i hope that this helps you :)
Please help I’m struggling
Answer:
x = -4
Step-by-step explanation:
x= 3 is a parallel to y axis. So a parallel line to x = 3 must be parallel to y axis.
A line parallel to y axis has a generic equation: x = h. We know that the line passes to the point with has x coordinate = -4
So the equation is x= -4
What is the percentage of 14 out of 20?
Show your thinking!
Answer:
70%
Step-by-step explanation:
14/20
Divide the top and bottom by 2
7/10
Multiply the top and bottom by 10
7*10
-----------
10*10
70/100
Percent means out of 100
70%
Answer:
70%
Step-by-step explanation:
14/20 and for a percentage it's out of 100 so 20*5 is 100. So, you would have to do 14*5 which is 70. So, it's 70%.
subtract the mixed numbers. Make sure to simplify the difference.
3 1/3 - 1 5/6 =
Answer:
1 1/2
Step-by-step explanation:
3 1/3 = 10/3 = 20/6
1 5/6 = 11/6
20/6 - 11/6 = 9/6 = 1 1/2
Answer:
1 1/2
Step-by-step explanation:
For every hour of exercise, Tina drinks 8 ounces of water. What is the ratio of hours to water
Answer:
1:8
Step-by-step explanation:
1 hour for every 8 ounces gives a 1:8 ratio
Answer:
8:3 would be the ratio
Can someone please answer these 3 questions giving brainliest
Answer:
Step-by-step explanation:
It really is just a matter of substituting the given values into the given equations.
f(x)=-3x
f(2)=-3(2)
f(2)=-6
h(a)=4a
h(4)=4(4)
h(4)=16
g(x)=x^2-1
g(8)=8^2-1
g(8)=64-1
g(8)=63