Answer:
b = -5
Step-by-step explanation:
[tex]\begin{array}{rcll}(y^{-9})^{b} & = & y^{45}& \\y^{-9b} & = & y^{45} & \text{Multiplied exponents}\\-9b \ln y & =& 45 \ln y & \text{Took the ln of each side}\\-9b & = & 45 & \text{Divided each side by ln y}\\b & = & \mathbf{-5} & \text{Divided each side by -9}\\\end{array}[/tex]
Whoever helps me gets a brainlist
Answer:bruh thats too much and its long
Step-by-step explanation:
Hausu
y = -9x - 14
x-intercept
y-intercept:
Answer: The x intercept is (-14/9,0) which means the x intercept is -14/9. The y intercept is -14.
Step-by-step explanation:
the x intercept is when y is 0 so using the equation we could solve for x by putting in 0 for y.
0=--9x - 14
+ 14 +14
14= -9x
x= -14/9
The y intercept is when x is zero so using the same method we will put in 0 for x in the equation and solve for y.
y= -9(0) - 14
y= 0-14
y= -14
How many solutions does this equation have 12(x-3)=6(x-4)
Answer:
one answer
Step-by-step explanation:
the answer is x=2
The unit digit in the square of 1294 is_______.
The answer is 6 as unit digit of number is 4 when you square you will get the unit digit 6
Answer:
.
Step-by-step explanation:
.
Hi please can any one help me please
Answer:
I will explain how to do this.
Step-by-step explanation: For example A-B is going away from her home because the distance is changing and in the beginning it says Mary starts at her house. So now to continue, where the first letter meets the last letter ( in this scenario its A-B) you'll look at the space between it and count the ticks on the side where it says distance and use the number on the side to guide you. Now for time you'll do the same thing with the ticks on the side. But for where it goes down she is going the opposite way so it'll still be distance but she will be going back home, for the straight line that means she is not moving at all. Hope this helps :)
Convert the angle 0=345° to radians
Answer:
Step by step explanation:
(345) x (pi/180)
Rearranged:
(345/180) x (pi)
= 1.9166pi
1.9166 x 3.14
= 6.018
Rounded to 6.02
The students are doing a fundraiser to help out a friend. They are selling chocolate and cookies for $3 and $2.50 respectively. The cookies were presold to 60 people. At least how many of the chocolates must be sold to collect $255?
Answer:
At least 18 chocolates sold to collect $225
Step-by-step explanation:
~ Let's say x ⇒ the number of chocolates, y ⇒ the number of cookies ~
1. We can see that the number of chocolates/ cookies * the cost of chocolates/cookies = the total cost of chocolates/cookies. Provided this, it would be that 3x and 2.5y would represent the cost of chocolates and cookies.
2. It is given that there was $225 sold from chocolates and cookies, so we can say that 3x + 2.5y = 225 from this assumption.
3. That being said it is also known that the cookies were sold to 60 people, so we can assume that 60 cookies were sold out, 1 were person. With this information we can see that 3x ⇒ 3 * 60 = 180 ⇒ cost of cookies sold
4. Now we can substitute this value of 3x into the equation 3x + 2.5y = 225, as such: 3x + 2.5y = 225 ⇒ 180 + 2.5y = 225, and now we can solve for y ~
180 + 2.5y = 225,
2.5y = 225 - 180,
2.5y = 45,
y = 45/2.5,
y = At least 18 chocolates sold to collect $225
what is the square root of 100
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
10 x 10 is 100
Fill in the missing number.
(X-4)(x+9)= x2 + ?x - 36
Answer:
5
Step-by-step explanation:
By multiplying the binomials, you get the expression x² + 9x - 4x - 36. Simplify by combining like terms to get x² + 5x - 36. 5 is our missing number and is the coefficient of our x variable.
After reaching the summit, she descends 14 feet in 213 minutes. If she continues at this rate, where will Maggie be in relation to the summit after 8 minutes?
Complete Question
Maggie is rock climbing. After reaching the summit, she descends 14 feet in 213 minutes. If she continues at this rate, where will Maggie be in relation to the summit after 8 minutes?
Answer:
Maggie will be [tex]x = 0.53 \ feet[/tex] from the previous position
Step-by-step explanation:
From the question we are told that
The distance of descent is [tex]d = 14 ft[/tex]
The time taken is [tex]t = 213 \ minutes[/tex]
So she descended 14ft in 213 minutes
So she would descend x ft in 8 minutes
Hence
[tex]x = \frac{14 * 8 }{213}[/tex]
[tex]x = 0.53 \ feet[/tex]
Tim buys a torch and a battery
The torch costs eleven times as much as the battery
Tim pays with a £10 note and gets £4.84 change
How much does this battery cost
Answer: https://brainly.com/question/10946691
Step-by-step explanation:
This link which is the image will help
m-15=-5
URGENT PLEASE HELP!!
m minus fifteen equals negative five!!
(find m)
Answer:
m-15=-5
m=15-5
m=10
when you take the-15 over it becomes positive and the negative remains giving you 15-5
when you work it out 10-15=-5
What is \text{P(not }3)P(not 3)start text, P, left parenthesis, n, o, t, space, end text, 3, right parenthesis? If necessary, round your answer to 222 decimal places.
Answer:
There is no enough information to determine probability of not having 3, P(not 3).
Suppose we were given the probability of having 3, P(3), we can easily find P(not 3).
The probability of success plus the probability of failure of an event is always equal to 1.
If p is the probation success, and q, of failure, then p + q = 1
So,
P(3) + P(not 3) = 1
That is
P(not 3) = 1 - P(3).
Write the ratio in simplest form.
The ratio of sneakers 2 to 4 total number of shoes is
Answer:
1 to 2
Step-by-step explanation:
Imagine the ratio is a fraction: 2/4. Simplify the ratio the same way you'd simplify the fraction. Both the numerator and the denominator are divisible by 2. Divide both by two, and you get 1/2.
Therefore, the simplest ratio is 1 to 2.
What is the slope of the line on the graph?
Answer:
its going up so in that case its positive
Step-by-step explanation:
if it is going down it is negative
A student wants to save at least $5000 for college. She begins with a savings account set up by her parents containing $2,500. Each month she deposits an additional $50 into the account. Fill in the first blank with the correct expressions that make the statement true.
(Attached is the statement and the choices)
Answer: She deposits 50 dollars per month right? But as known her parents deposited her 2,500. So, it will take her 50 months to complete the amount of 5000 dollars needed for college.
Step-by-step explanation: Im not good with equations but here we go.
First: AS we know the account already had 2,500, and every month she deposits 50$.
What we can do is to divide 2,500 divided by 50 which will be 50.
Why is it important to look at more than just the first two numbers of a pattern to decide the rule for a pattern?
Pls answer my assignment is due in an hour
Answer:
there could be multiple ways to get to a certain number like 1 to 3 could be + 2 or multiplying 3 so you have to check the next numbers to see if it is adding 2 or multiplying 3
Step-by-step explanation:
is (3,-3)a solution of y ≤−5x+3y ? yes or no
Answer:
No, -3 is greater than -24
Step-by-step explanation:
-3≤-5(3)+3(-3)
-3≤-15-9
-3≤-24
No, -3 is greater than -24
Hope this helps! Please mark brainliest :)
Answer: No
Step-by-step explanation: To find out if this ordered pair is a solution to the following inequality, simply plug the values in for x and y.
So we have -3 < -5(3) + 3(-3) or -3 < -15 + -9 or -3 < -24.
Since -3 < -24 is a false statement, the ordered pair
(3, -3) would not be considered a solution.
Find the common ratio of the geometric sequence
-15, -30, -60, ....
Answer:
2
Step-by-step explanation:
common ratio r=an/an-1
=-30/-15 =2
Find the area of the triangle
Answer:
14
Step-by-step explanation:
Base:4 + 3=7
hight:3
area of Triangle: b*h/2
therfore the answer is 14m squared
The triangle with a base of 4 and a height of 3 has an area of 6 square meters.
Based on the given information, we have a triangle with a base of 4 and a height of 3.
To calculate the area of the triangle, we use the formula:
Area = (base * height) / 2.
Substituting the values, we have
Area = (4 * 3) / 2
= 12 / 2
= 6
Therefore, the area of the triangle is 6 square meters.
Learn more areas of the triangle here:
https://brainly.com/question/27683633
#SPJ4
The diagram shows a lawn with a fence along one edge
Each can of weed killer can cover 100 square metres . Each can costs £19.75
Answer:
£59.25
Step-by-step explanation:
17²-8²=225
√225=15
1/2(12+20)×15=240m²
240÷100=2.4
3×19.75=£59.25
PLZ ANSWER as quick as you can
Answer: 65
adding all flat surfaces equals 65
12+24+12+16+25 = 65
Two beach rental companies compared their sales from last weekend. Both companies rent out jet skis and kayaks, and they charge the same prices. Will's Watersports made a total of $780 from renting 12 jet skis and 9 kayaks. Family Fun Rentals made a total of $570 from renting 7 jet skis and 11 kayaks. What is the cost of each type of rental?
Answer:
To rent a jet ski you need to pay $50 and to rent a kayak you need to pay $20
Step-by-step explanation:
Since both shops charge the same amount for each kind of vehicle, we will assign variables to the their cost. The cost of a jet ski will be "x" and the cost of the kayak will be "y". Therefore we can create a system of equations as shown below:
Will's shop:
12*x + 9*y = 780
Fun Rentals:
7*x + 11*y = 570
[tex]\left \{ {{12x+ 9y=780} \atop {7x + 11y =570}} \right.\\[/tex]
We can isolate "x" on the second equation, we have:
[tex]x = \frac{570 - 11y}{7}[/tex]
Applying this value on the first equation:
[tex]12[\frac{570 - 11y}{7}] + 9y = 780\\\frac{6840 - 132y}{7} + 9y = 780\\\frac{6840 - 132y + 63y}{7} = 780\\ 6840 - 132y + 63y = 5460\\6840 - 69y = 5460\\69y = 1380\\y = 20[/tex]
Applying the value of "y" we found on the "x" equation above, we have:[tex]x = \frac{570 - 11*20}{7}\\x = 50\\[/tex]
Therefore to rent a jet ski you need to pay $50 and to rent a kayak you need to pay $20
Identify the center and radius of each. Photo attached.
Answer:
Center ~ ( -4, 3 ), Radius ~ 2; Option A
Step-by-step explanation:
~ We know that the standard circle equation ( x - a )^2 + ( y - b )^2 = r^2 provided r ⇒ radius of the circle, centered at ( a, b ) ~
1. If we are given the circle formula ( x + 4 )^2 + ( y - 3 )^2 = 4, it would be that the center points ( a, b ) would be the inverse of 4 and -3, provided the formula is -a and -b: center ( -4, 3 )
2. Now the radius in the formula ( x - a )^2 + ( y - b )^2 = r^2, is noted by r such that in ( x + 4 )^2 + ( y - 3 )^2 = 4, r^2 is 4 ⇒ r = √4 = 2
3. We now know that the center of this circle is ( -4, 3 ) with a radius of 2, and the only graph that represents that function is the first graph ~
Answer: Center ~ ( -4, 3 ), Radius ~ 2
Standard form for y=3×-2
Answer: y= - 6
Step-by-step explanation:3×-2= - 6
a travel company sells holidays and wants to survey 500 customers stratified by country visited, complete the table.
uk france spain italy total
number of customers 968 248 2042 742 4000
number of sample ............................................................... 500
Answer:
[tex]\left|\begin{array}{c|c|c|c|c||c}$Country Visited&$UK& $France& $Spain& $Italy &$Total\\&&&&&\\$Number of Customers &968& 248& 2042& 742& 4000\\&&&&&\\$Number of sample&121&31&255&93&500\end{array}\right|[/tex]
Step-by-step explanation:
[tex]\left|\begin{array}{c|c|c|c|c||c}$Country Visited&$UK& $France& $Spain& $Italy &$Total\\$Number of Customers &968& 248& 2042& 742& 4000\\$Number of sample&&&&&&\end{array}\right|[/tex]
Since the company wants to survey 500 customers by the countries visited, the number of samples from each country will be proportional to the number of customers.
For UK, Number of Samples[tex]=\dfrac{968}{4000}X500=121[/tex]
For France, Number of Samples[tex]=\dfrac{248}{4000}X500=31[/tex]
For Spain, Number of Samples[tex]=\dfrac{2042}{4000}X500\approx 255[/tex]
For Italy, Number of Samples[tex]=\dfrac{742}{4000}X500\approx 93[/tex]
The completed table therefore is:
[tex]\left|\begin{array}{c|c|c|c|c||c}$Country Visited&$UK& $France& $Spain& $Italy &$Total\\&&&&&\\$Number of Customers &968& 248& 2042& 742& 4000\\&&&&&\\$Number of sample&121&31&255&93&500\end{array}\right|[/tex]
Answer:
look at the attachment below!
Step-by-step explanation:
Sean found that 6 of his classmates wore a size 5 shoe,
12 wore a size 6, 10 wore a size 7, and 2 wore an 8. On
a line plot, which value is the mode of the data?
Answer:
6 is the mode
Step-by-step explanation:
The mode is the most repeating set of data. So 6 repeating 12 times is the most frequent. So thats the explanation.
Answer:
six
The answer is six because it has the most number
a block of wood is a cube and has the dimensions 5cm by 5cm by 5 cm what is the volume of the block of wood
Answer: 125 cubic cm
A block's volume is found by multiplying the length, width and height. We have 5*5*5 = 125 as the volume. The units are in cubic centimeters which you can write as "cubic cm" or "cc" for short. Another way to write it is as "cm^3"
Side note: Your math book or your teacher may refer to a block as a rectangular prism.
Answer:
125cm^3
Step-by-step explanation:
the formula for V of a cube is length x width x height. so you will go 5cm x 5cm x 5cm =125cm^3
what is the length of a 45 arc
Answer:
1.5707
Step-by-step explanation:
i solved it using the furmola :
[tex]2\pi \times r \frac{45}{360} [/tex]
Answer:
a = 1.57 inStep-by-step explanation:
We know that the length of the arc in a circle is proportional to its corresponding angle which means:
a corresponds to 45
2πr corresponds to 360
then
[tex]\frac{a}{45} = \frac{2\pi r}{360}[/tex]
then
a = (45÷360)×4×π
=1.570796326795
4. Nguyen is decorating the room for her sister's baby shower party. She is wrapping
Vietnamese conical hats in baby prints tissue paper to decorate the tables and some
shelves in the wall. Each hat has a diameter of 16 inches and a height of 9 inches. If
she wants to wrap 21 Vietnamese hats, how much tissue paper will she need?
A 4,176 in2
B 8,975 in2
C 10,580 in2
D 36,267 in 2
Answer:
Step-by-step explanation:
Given the information of the conical hat
diameter of 16 inches => Radius = 8 inches height of 9 inches=> the slant height of the hat is (use Pythagorean Theorem)
[tex]s^{2}[/tex] = [tex]r^{2} + h^{2}[/tex]
<=> [tex]s^{2}[/tex] = [tex]8^{2} + 9^{2}[/tex]
<=> s = [tex]\sqrt{145}[/tex]
The area (without the base area) of tissue paper will she need to make one hat is:
SA = πrs in2
<=> SA = π*8*[tex]\sqrt{145}[/tex] in2
<=> SA =8 [tex]\sqrt{145}[/tex] π
=> the total tissue paper will she need for 21 hats is:
SA*21
= 8 [tex]\sqrt{145}[/tex] π*21
= 6352,18 in 2