what is
5x3 divided by 15 + 15 - 15
Answer:
5 × 3 divided by 15 + 15 - 15 = 1.
Sarianna is saving up to but a pet lizard. The lizard costs $12.35, the food costs $8.40, and the cage costs $26. If she has $20,
how much more money does she need to save?
Answer:
26.75
Step-by-step explanation:
The sum of two consecutive integers is 125.find the two integers
Answer:
62 and 63
Step-by-step explanation:
125/2= 62.5 (Middle integer or mean of the 2 integers)
That means that the integers are 62 and 63
Please help!!
Name a pair of complementary angles in the diagram above.
A. 1 and 2
B. 2 and 3
C. 4 and 5
D. 7 and 9
Answer:
Step-by-step explanation:
Simplify the expression.
4f8 +39) + 5g
Answer:4f^8+5g+39
Step-by-step explanation:
PLEASE HELP IM IN A HURRY
What is the area of the figure composed of a parallelogram, a square, and a rectangle?
Answer:
The area of the figure composed of a parallelogram, a square and a rectangle is 126 in².
Step-by-step explanation:
Hope I could help!
3,090 would be represented using
cubes,
flats,
rods, and
units
Answer:
D. units
Step-by-step explanation:
A unit is the system in which a physical quantity is measured. It gives appropriate understanding of what physical quantity has been measured. All physical quantities have specific unit of measurements.
A unit can also represent the smallest part of a measurement. Example 1 unit, 2 units etc.
Since the unit of measurement is not indicated in the question, therefore 3, 090 would be represented using units. So that we have; 3, 090 units.
find the exact value of cos A in simplest radical form?
Answer:
cosA = 7/8
Step-by-step explanation:
cos∅ = adjacent over hypotenuse
cosA = 14/16
cosA = 7/8
Several psychology majors conducted an experiment around campus, asking students to count backwards from 40 to 0 as fast as possible. From their findings, they concluded that out of every 15 students, only 6 could accurately count backwards in less than 15 seconds. They repeated this experiment with the professors. They discovered that their success rate was 140% of the students' success rate. From the list of participants, they randomly selected 10 students and 10 professors. The probability that 4 students who completed the task were selected is S and the probability that 4 professors who completed the task were selected is R. Find the absolute difference in S and R.
Answer:
Step-by-step explanation:
POINTS:
- Out of every 15 students, 6 were successful in the task.
- The professors' success rate is 140% of the students' success rate.
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Mrs. Cook is a teacher whose salary is $23,125 for a 185-day school year. In Mrs. Cook's school district, substitute teachers are paid at a rate of $90 per day. If a substitute is paid to teach Mrs. Cook's class in her absence one day, how much less does the school district pay in salary by paying a substitute teacher instead of paying Mrs. Cook for that day? *
Answer:
$90
Step-by-step explanation:
Off course the school district will pay in salary by $90 less.
the product of three negative is _________ integer
4.3 X.. X 4.3 =
13 times
Nick mowed about 5/8 of the school lawn yesterday. He mowed another 1/4 of the lawn this morning. How much is left to mow? *Write your answer as a decimal.
Answer:
1/8 of the lawn is left to mow. As a decimal this would be 0.125.
Step-by-step explanation:
Convert 1/4 to eighths, by multiplying the whole fraction by 2. The fraction would thus be 2/8. Add 5/8 and 2/8 and you know that he has mowed 7/8 of the yard, which means he now has 1/8 left to mow.
A balloon flies at 250 ft above sea level. A fish swims at 50 ft below sea level. What is the difference between these elevations?
Answer:
300 ft
Step-by-step explanation:
250 + 50 = 300 ft
Since the fish is below water and the balloon is above water, you have to add them together to get the difference.
(I think. . .)
How do you break apart the factor 42 using place value?
Hey there!☺
Let's break apart 42.
The 4 is in the tens. The 2 is in the ones.
Place Value starting from Thousands
Thousands Hundreds Tens Ones
_________ ________ ____ _____
4 2
So this is how we break up numbers using place value.
Hope this helps!
The number can be broken apart from the factor 42 using the place value as 40 + 2 here 4 is in the tens place and 4 is in the one's place.
What is the number?A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
It is given that:
The number is 42.
As we know,
The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
42 = 40 + 2
42 = 4x10 + 2x1
Thus, the number can be broken apart from the factor 42 using the place value as 40 + 2 here 4 is in the tens place and 4 is in the one's place.
Learn more about the number here:
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1.) find the quotient of 1,170 and 90
Answer: 13
Step-by-step explanation: 1170/90 = 13 because 13 x 90 = 1170.
Hope this helps!
Which equation is an example of the commutative property of multiplication? (4 + 2i) = (2i + 4) (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) (4 + 2i)(3 – 5i) = (4 + 2i)(3 – 5i)(1) (4 + 2i) = (4 + 2i + 0)
Answer: b. (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i)
Step-by-step explanation:
i took the test
The commutative property is shown by (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i).
What is the commutative property of multiplication?If we alternate the order of the numbers we're multiplying, the product does not change, this is the commutative property of multiplicationConsidering two real numbers a and b, the commutative property of multiplication of these two numbers will show: ⇒ a × b = b × aComplex number (a + bi) also shows the commutative property of multiplication. ⇒ (a + bi) = (bi + a)In the first option, it is given that:
(4 + 2i) = (2i + 4)
In this we can see that there is no multiplication between two complex numbers instead, it shows the addition. Hence this shows the commutative property of addition.
In the third option, it is given that:
(4 + 2i)(3 – 5i) = (4 + 2i)(3 – 5i)
Here we can see that there is multiplication between the two complex numbers but the order of multiplication is same on both the sides, hence this does not show the commutative property of multiplication.
In the fourth option, it is given that:
(4 + 2i) = (4 + 2i + 0)
We can clearly see there is no multiplication in this equation, hence this does not follow the commutative property of multiplication.
In the second option, it is given that:
(4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i)
Here we can see that, there is multiplication between two complex numbers and the order of multiplication is also different on one side, this clearly follows the commutative property of multiplication.
Therefore, the second option i.e. (4 + 2i)(3 – 5i) = (3 – 5i)(4 + 2i) is the correct example of the commutative property of multiplication.
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Simpify 3^2 times 3^5
This is equivalent to 2187 if you were to evaluate 3^7 with a calculator.
============================================================
Explanation:
The rule you use is
[tex]a^b*a^c = a^{b+c}[/tex]
When we multiply exponential expressions with the same base, we add the exponents. The base stays the same.
So,
[tex]3^2*3^5 = 3^{2+5} = 3^7[/tex]
If the bases were different, then you cannot use this rule.
Answer:
Ok!
Step-by-step explanation:
So I’m guessing 3^2 means 3x3 basically! If I’m wrong pls correct! Anyways, so you wanna write the equation like so: (3^2) + (3^5). Next, do 3^2 which gets you 9. Then, do 3^5 which gets you 243. I know, it’s confusing haha. Now, add those two together & u get 252! There ya go, hoped it helped (:
Write the sum of 5x2 + 2x - 10 and 2x2 + 6 as a polynomial in standard form.
Answer:
7x^2+2x-4
Step-by-step explanation:
a standard form is ax+by=c
5x^2 add 2x^2=7x^2 then -2x but when you have a -10 +6 you get -4 giving you the answer of 7x^2 +2x -4
Answer:
7x^2 + 2x - 4
Step-by-step explanation:
First, combine like terms: Combine 5x^2 and 2x^2, obtaining 7x^2. Include the 2x term (there is no like term for this one) and combine -10 + 6, obtaining -4.
Then the sum of these two polynomials is
7x^2 + 2x - 4
Note: Use " ^ " to indicate exponentiation.
Which graph represents the function y = 2/3x -2.?
second one to the right
Michael can paint 1/2 of a room every 1/3 of an hour. How many rooms can Michael paint in 1
hour?
Answer:
1.5 rooms
Step-by-step explanation:
1/2 x 3
Write a quadratic equation in vertex form (use y = a(x - h)^2 +
k) that has a vertex of (-1, 7) and passes through the point (3,
39).
answer this i have a test rn please
6. Find the value of x:
Answer:
Step-by-step explanation:
The lines are parallel.
Therefore
3x + 6 = 4x - 12 Add 12 to both sides
3x + 6 + 12 = 4x Combine
3x + 18 = 4x Subtract 3x from both sides.
18 = 4x - 3x
18 = x
Step-by-step explanation:
the ans is given.the ans is 18.
Which graph shows a function with a range of all real numbers greater than or equal to –1?
Answer:
b
Step-by-step explanation:
edge2020
Can anyone please help
[tex]\text{Hi there! :)}[/tex]
[tex]\large\boxed{f'(2) = -\frac{16}{27} }[/tex]
[tex]f'(x) = \frac{(5 + x^{2} )(-2x) - (7 - x^{2} )(2x)}{(5+x^{2})^{2} } \\\\f'(x) = \frac{-10x-2x^{3}- 14x + 2x^{3} }{(5+x^{2})^{2} } \\\\f'(x) = \frac{-24x}{(5+x^{2})^{2} }\\\\ \text{Solve for the derivative at f'(2) using substitution:}\\\\f'(2) = \frac{-24(2)}{(5+2^{2})^{2} } \\\\f'(2) = \frac{-48}{81} \\\\\text{Simplify:}\\\\f'(2) = -\frac{16}{27}[/tex]
Answer:
1) [tex]f'(x)=-\frac{24x}{(5+x^2)^2}[/tex]
2) [tex]f'(2)=-\frac{16}{27}[/tex]
Step-by-step explanation:
So we have the function:
[tex]f(x)=\frac{7-x^2}{5+x^2}[/tex]
And we want to find f'(x).
To do so, we can use the quotient rule.
So, let's take the derivative of both sides:
[tex]\frac{d}{dx}[f(x)]=\frac{d}{dx}[\frac{7-x^2}{5+x^2}][/tex]
Remember that the quotient rule is:
[tex]\frac{d}{dx}[f/g]=\frac{f'g-fg'}{g^2}[/tex]
In our equation, f is (7-x^2) and g is (5+x^2).
So, using the quotient rule, our derivative f'(x) is:
[tex]f'(x)=\frac{\frac{d}{dx}[7-x^2](5+x^2)-(7-x^2)\frac{d}{dx}[5+x^2]}{(5+x^2)^2}[/tex]
Differentiate:
[tex]f'(x)=\frac{(-2x)(5+x^2)-(7-x^2)(2x)}{(5+x^2)^2}[/tex]
Simplify. Distribute in the numerator:
[tex]f'(x)=\frac{(-10x-2x^3)-(14x-2x^3)}{(5+x^2)^2}[/tex]
Distribute:
[tex]f'(x)=\frac{(-10x-2x^3)+(-14x+2x^3)}{(5+x^2)^2}[/tex]
The cubed terms cancel. This leaves:
[tex]f'(x)=\frac{(-10x)+(-14x)}{(5+x^2)^2}[/tex]
Add. So, our derivative is:
[tex]f'(x)=-\frac{24x}{(5+x^2)^2}[/tex]
To find f'(2), simply substitute 2 into our derivative. So:
[tex]f'(2)=-\frac{24(2)}{(5+(2)^2)^2}[/tex]
Multiply and square:
[tex]f'(2)=-\frac{48}{(5+4)^2}[/tex]
Add:
[tex]f'(2)=-\frac{48}{(9)^2}[/tex]
Square:
[tex]f'(2)=-\frac{48}{81}[/tex]
Reduce by 3:
[tex]f'(2)=-\frac{16}{27}[/tex]
And we're done!
What is 630.5630.5630, point, 5 in words?
Answer:
630.56
Step-by-step explanation:
example 3.14159 if last 5 or later than 5 then add before number 1
like 3.1416 you can use this number too
Answer:
six hundred thirty and five tenths
Step-by-step explanation:
1/2s=4s-21 please show steps
Answer:
s = 6
Step-by-step explanation:
Goal is to isolate the variable (s)
1/2s = 4s - 21
Subtract 4s from both sides - this cancels out the 4s on the right side and moves it to the left side
1/2s - 4s = -21
To add or subtract fractions, they must have a common denominator
Convert 4s to a fraction over 2
1/2s - 8/2s = -21
Subtract the numerators and keep the denominators
-7/2s = -21
Remember the goal is to isolate the variable
In order to get rid of the -7/2, we multiply by its reciprocal (which is -2/7)
What we do to one side, we must do to the other (this means multiply by -2/7 on both sides
-7/2s × -2/7 = -21 × -2/7
s = -21 × -2/7
Negative × negative = positive
s = 42/7
Divide 42 by 7
s = 6
How many solutions exist for the system of equations in the graph?
One
Two
Three
Four
Answer:2
Step-by-step explanation:
It goes through two points
Answer:
b
Step-by-step explanation:
One box of printer paper has 3 X 10^2 sheets of paper. Another box has 10^3 sheets of paper. What is the TOTAL number of sheets in BOTH boxes.
Answer:
1,300
Step-by-step explanation:
The Total number of sheets in both boxes are 1,300.
What is addition?Addition is a way of combining things and counting them together as one large group. Addition in math is a process of combining two or more numbers.
Now the given number of sheets in first box = 3 x 10^2 = 300
Given number of sheets in the second box = 10^3 = 1,000
Now to find the total number of sheets in both boxes,
Total number of sheets in both boxes
= sheets in first box + sheets in the second box
⇒Total number of sheets in both boxes = 300 + 1,100
⇒Total number of sheets in both boxes = 1,300
Hence,The Total number of sheets in both boxes are 1,300.
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YEET
Answer:
Yeet
Step-by-step explanation:
Yeet yeet yeet, yeet yeet. :D
Answer:
Yes, my kind sir.
Step-by-step explanation:
Too bad its not really lazer. if it is you put this in a vid.
