Answer:
900 batteries
Step-by-step explanation:
First we must find how many batteries does 1 calculator need
we can do this by dividing 160 by 40
which will give us 4 batteries per calculator
then we multiply the amount of calculators we have with 4
225×4 = 900 so we need 900 batteries
5.524(2 significant figures)
Answer:
5.524 in 2 significant figures rounding the value to 2 non zero numbers.
5.524 = 5.5 (2 significant figures)
I’ll give you all the points I can give if you help me no links pls pls
Answer:
We cant see the writing it is too small
Step-by-step explanation:
someone please help me
Answer:
a. 2/5; reduction
Step-by-step explanation:
It appears that C is the center of dilation, so C' and C are coincident. The scale factor is ...
P'C'/PC = 4/10 = 2/5 . . . scale factor
The scale factor is less than 1, so the dilation is a reduction in size.
What is the volume of this sphere?
Use a 3.14 and round your answer to the nearest hundredth.
6 yd
Answer:
Volume = 904.78 yards
Step-by-step explanation:
The formula for a sphere is:
V=4/3πr³
Since we already know that the radius is 3 yards and that π is 3.14 all we have to do is plug in the numbers.
V=4/3(3.14)(6)³
V=4/3(3.14)(216)
V=4.1897(216)
V≈904.78 yards
What is the length of this downhill track?
Answer: 10
Step-by-step explanation:
Instructions: Use the graph to identify the vertex and then fill in the vertex form of the
quadratic function.
taking a peek at the picture, we can see that the U-turn or vertex occurs at the point (2 , -9), and we can also see that the graph passes through the point say (5 , 0).
[tex]~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{vertex}{(2~~,~-9)}\qquad y=a(x-2)^2-9\qquad \qquad \textit{we know that} \begin{cases} x=5\\ y=0 \end{cases} \\\\\\ 0=a(5-2)^2-9\implies 9=9a\implies \cfrac{9}{9}=a\implies 1=a~\hfill \\\\\\ y=1(x-2)^2-9\implies \boxed{y=(x-2)^2-9}[/tex]
If f(x) = x + 1 and g(x) = x^3, the function (fοg)(x) is:
Answer:
x³ + 1
Step-by-step explanation:
to evaluate (f ○ g)(x) , substitute x = g(x) into f(x)
f(g(x) )
= f(x³)
= x³ + 1
A computer technician charges $37.50 per hour plus a $70 service charge find the total charges if it takes to computer technician 5.5 hours to complete a task
Answer:
276.25
Step-by-step explanation:
37.50 x 5.5 = 206.25
206.25+ 70 = 276.25
Solve these equations
1. 3x^2-16x-10=-15x
2. (3x - 7)(2x + 5) = 0
3. 2x + 5 - 3x = 4x + 17 + x
4. x^2 - 49 = 0
5. x^2 + 8x + 12 = 0
6. 0= (2x^2 - 3x + 5) - (x^2 + x + 37)
7. 12x^2 + 4x - 1
8. x^2 - 7x + 12
9. 6x^2 - 3x - 3
Answer: 1. x=2,-5/3
Step-by-step explanation:
Please help: Find an equation of a line that is tangent to the graph of f and parallel to the given line.
The equation of a line that is tangent to the graph of f and parallel to the given line is; y = 3x + 2 and y = 3x - 2
How to find the equation of a line in slope intercept formThe given equation of the line is 3x - y + 3 = 0
In slope intercept form, this can be rewritten as;
y = 3x + 3
Therefore, the slope of this line will be 3 since in y = mx + c, m is the slope. Thus, the slope of the parallel line will be 3
We will be looking for the value of x when the derivative of f(x) equals 3.
f(x) = x³ and so f'(x) = 3x²
Thus;
3x² = 3
x² = 3/3
x² = 1
x = 1 or -1
Thus;
y = 1³ or y =-1³
y = 1 or -1
Equation of tangent is;
y - 1 = 3(x - 1)
y - 1 = 3x - 3
y = 3x - 2
or y - (-1) = 3(x - (-1))
y + 1 = 3x + 3
y = 3x + 2
Read more about slope intercept form at; https://brainly.com/question/1884491
Of students in the AP curriculum at a prep school, 40% take one AP exam, 45% take two AP exams, and the remaining 15% take 3 AP exams. The highly desirable score of 5 is hard to earn, and only 20% of these students will earn a 5 on any given exam they take. Assuming their results on each exam are independent, what is the probability a student in the AP curriculum will earn at least one 5
It should be noted that the probability that a student will earn at least one 5 will be 0.3152.
How to calculate the probabilityTest P(x). P(at least one 5)
1. 0.4. 0.2
2. 0.45. 0.36
3. 0.15. 0.488
Therefore, the probability that a student in the AP curriculum will earn at least one 5 will be:
= (0.4 × 0.2) + (0.45 × 0.36) + (0.15 × 0.488)
= 0.3152
In conclusion, the correct option is 0.3152.
Learn more about probability on:
https://brainly.com/question/24756209
james has 202 cookie his friend wanted 132 cookies how much is the amount?
A basket of the fruit contains 12 apples, 8 bananas, and 6 oranges. What is the ratio of bananas to apples? (Please simplify)
Answer:
2 : 3
Step-by-step explanation:
bananas to apples = 8 : 12
simplify by dividing both values by highest common factor of 4:
8 ÷ 4 : 12 ÷ 4 = 2 : 3
from the definition of absolute value, |3x|= when x>=0
Explanation:
When x is zero or larger, then |x| = x.
An example: |9| = 9
This applies to |3x| as well, so |3x| = 3x when [tex]x \ge 0[/tex]
Can someone help with this please
Step-by-step explanation:
[tex]y = \frac{4}{x} + \sqrt{x + 0.2} - 5x[/tex]
[tex]x = \frac{4}{5} [/tex]
[tex]y = \frac{4}{1} \div \frac{4}{5} + \sqrt{ \frac{4}{5} + 0.2} - 5 \times \frac{4}{5} [/tex]
[tex] \frac{4}{1} \times \frac{5}{4} + \sqrt{0.8 + 0.2} - 4[/tex]
[tex]5 + \sqrt{1} - 4[/tex]
[tex]5 + 1 - 4 \\ 6 - 4 = 2[/tex]
Garfield had $10 in the bank yesterday. Then, Garfield bought dinner for $14, but didn't realize that he overdrew from his bank. His account balance was negative now and he was in debt! What is the absolute value of his new account balance?
what is [tex]\frac{1}{2} \sqrt{4}[/tex]
Answer:
square root of 4 is 2, 1/2 of 2 is 1
Step-by-step explanation:
What is the answer
7a-9b+6a-4b
Im having problems with this and need an answer with explanation if is positive maybe that way can be more easy to understand
A bike with an original price of 90$ is discounted 40%. What is he sale price
Answer:
$54
Step-by-step explanation:
Original Price = $90
Discounted = 40%
Percent to decimal 40% = .40
$90 x .40=36 ( 36 is the Discount)
$90 - 36=54
Sale Price = $54
Hence, Sale Price = $54
[RevyBreeze]
Find the factored form of the expression.
3x^2 + 300 = 0
Answer:
x = 10i - 10i
Step-by-step explanation:
3x^2 + 300 = 0
3(x^2 + 300) = 0
x^2 + 100 = 0
x^2 = -100
x = -100 (sqr root)
x = 10i - 10i
Hope this is more of the answer you where looking for.
Answer:
10
Step-by-step explanation:
it just is
The terminal side of a 130° angle in standard position lies in the
quadrant.
Answer:
Second quadrant
Step-by-step explanation:
Quadrant I ranges from [tex]0^\circ<\theta<90^\circ[/tex]
Quadrant II ranges from [tex]90^\circ<\theta<180^\circ[/tex]
Quadrant III ranges from [tex]180^\circ<\theta<270^\circ[/tex]
Quadrant IV ranges from [tex]270^\circ<\theta<360^\circ[/tex]
A small college had 7,500 students enrolled in 2010, and the number of students enrolled has increased by 3% each year since. If f(n) represents the number of students enrolled n years after
2010, then which function best represents its value?
Answer:
7800
I already take a homework with this question
you have 5 apples, multiply it by x, and get 1345. What is x?
Answer:
x = 269
explanation:
5 apples multiplied by x and equals to 1345solve:
5 * x = 1345
x = 1345/5
x = 269
Therefore x is 269.
note: changing sides changes multiplication(*) to division(/) and division(/) to multiplication(*).
Answer:
x = 269
Step-by-step explanation:
For this question, they are asking you to create a problem out of the information given. For this problem, we will require the use of division. Before we can solve, we need to create the problem first.
Because the problem says 5 multiplied by x, we have to multiply these two. (Important:) Anytime you are multiplying a coefficient (5 in this case) by a variable (x in this case) we have to put the coefficient in front of the variable, like this:
5x _ ___.
Now that we know that, the question states that this basically equals 1345. With that said, that just gave us the rest of the problem. Now let's put it together:
5x = 1345.
Now we can solve. To single out the variable (x) to find our answer, divide 5 into 1345:
5x = 1345
5 5
So, 1345 ÷ 5 = 269. After that, we are left with x and 269 (because the 5 was canceled out with the division). So, the answer is:
x = 269.
I hope that this helps.
Mathieu grows specialty tomatoes that are much larger than typical tomatoes. The distribution of their weights is strongly skewed to the left with a mean of 232g and a standard deviation of 12g. Suppose we were to calculate the mean weight from a random sample of 16 of Mathieu's tomatoes. We can assume independence between tomatoes in the sample.
What is the probability that the mean weight from the sample of 16 tomatoes x is within 6g of the population mean?
Answer:
We cannot calculate this probability because the sampling distribution is not normal.
Step-by-step explanation:
Since the parent population is not normally distributed, the small sample size will result in a sampling distribution that isn't normal.
The trapezoids below are similar. Find z.
ratio remains same.
[tex]\\ \tt\longrightarrow \dfrac{2}{14}=\dfrac{7}{2z}[/tex]
[tex]\\ \tt\longrightarrow 4z=14(7)[/tex]
[tex]\\ \tt\longrightarrow 4z=98[/tex]
[tex]\\ \tt\longrightarrow z=98/4[/tex]
[tex]\\ \tt\longrightarrow z=24.5[/tex]
In one U.S. city, the taxi cost is $5 plus $0.90 per mile. If you are traveling from the airport, there is an additional charge of $3.50 for tolls. How far can you travel from
the airport by taxi for $40.00?
Answer:
35 miles
Step-by-step explanation:
At the start, you lose $8.5 for tolls and the taxi cost.
You're left with $31.5 after that, every mile costs you $0.9, so you can go 31.5 : 0.9 = 35 miles.
Awnser down below!
⬇ ⬇ ⬇
Answer:
1. 103
2. 156
3. 114
4. 115.14
5. 140
6. 123.8
7. 120.28
8. 107
Step-by-step explanation:
Answer:
hope it helps you :)) !
Brainliest if correct
Answer:
-6
Step-by-step explanation:
Answer:
-6
Step-by-step explanation:
3(-2)(-1)(-1)= -6
[RevyBreeze]
If point A, shown on the coordinate plane below, is reflected over both axes to create A’, what will be the coordinates of A’?
(-6, 3)
(-6, -3)
(6, -3)
(6, 3)
Answer:
(c) (6, -3)
Step-by-step explanation:
Reflection over both axes is the same as reflection across the origin, or rotation 180° about the origin. It has the effect of negating both coordinates:
(x, y) ⇒ (-x, -y) . . . . . reflection over both axes
The coordinates of A are (-6, 3), so the coordinates of A' will be ...
A(-6, 3) ⇒ A'(6, -3)
What is the value of the expression: 4(n+13) where n=5
45
235
72
41
Answer:
72
Step-by-step explanation:
=> 4(n+13)
putting the value of n which is 5
=> 4(5+13 )
=> 4(18)
=> 72