Answer:
2 + (3 + 4) = (2 + 3) + 4 ⇒2+7 = 5+4.
Step-by-step explanation:
the perimeter of an octagon is 20 units. if the length of each side of the figure is increased by 2 units, what is the perimeter of the new figure
Consider these signed numbers and determine whether each product is positive or negative.
(-2/3) (524)
(4 5/9) (4/5)
(-6 3/4) (-7 1/11)
Answer:
1. negative. why: a negative multiplied by a positive will always be negative.
2. positive. why: a positive multiplied by a positive will always be positive.
3. positive. why: a negative multiplied by a negative will always be positive.
Step-by-step explanation:
hope this helps
10.
Evaluate the function rule for the given value. f(x) = 3^x for x = –5
A. 1/243
B. –15
C. 1/729
D. –125
Answer:
A. 1/243
Step-by-step explanation:
f(x) = 3^x
Let x = -5
f(-5) = 3^-5
We know a^-b = 1/a^b
f(-5) = 1/3^5
= 1/243
Solve the system using the elimination method.
2x + 2y + 5z =−1
2x − y + z =2
2x + 4y − 3z =14
What x,y, and z?
Answer:
x=151/64 y=9/8 z=-51/32
Step-by-step explanation:
2x+2y+5z- (2x-y+z)=-1-2
3y+4z=-3
2x+2y+5z- (2x+4y-3z)=-1-14
-2y+8z=-15
We have two equations 3y+4z=-3 and -2y+8z=-15 (We get it due to elimination method)
3y+4z=-3 (2)
-2y+8z=-15 (-3)
6y+8z=-6
6y-24z=45
(6y+8z)- (6y-24z)= -6-45
32z=-51
z=-51/32
3y-204/32=-3
3y= -96/32+204/32
3y=108/32
y=36/32=9/8
2x+2*9/8+5*(-51/32)=-1
2x+9/4-255/32=-1
2x+72/32-255/32=-1
2x-183/32=-32/32
2x=151/32
x=151/64
Geometry help I don’t get it
Which expression can be used to convert 488 miles to yards
Answer:
488 Miles (mi)
=
858879.99997 Yards (yd)
Step-by-step explanation:
mile is a most popular measurement unit of length, equal to most commonly 5,280 feet (1,760 yards, or about 1,609 meters). The mile of 5,280 feet is called land mile or the statute mile to distinguish it from the nautical mile (1,852 meters, about 6,076.1 feet). Use of the mile as a unit of measurement is now largely confined to the United Kingdom, the United States, and Canada.
Yards : A yard (symbol: yd) is a basic unit of length
We have that The expression for converting 488 miles to yards will be
488miles*1760yard
From the question we are told that
Convert 488 miles to yards
Generally the expression for the conversion is is mathematically given as
Where
1mile=1760yards
Therefore
The expression for converting 488 miles to yards will be
488miles*1760yard
In conclusion
The expression for converting 488 miles to yards will be
488miles*1760yard
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-7÷ 14/3
plzz help im checking my work
Jillian simplified the expression 7 + 3 . (10 -6) ^2 in the following way:
7 + 3 . (10 - 6) ^2
7+ 3 . (4)^2
7+3 . 16
10 . 16
160
Part: A Explain, using the complete sentences, what Jillian’s error was
Part B: show how the expression should have bee simplified using a similar format.
Please help me how should I explain it
Answer:
Part A: Jillian added 7+3 first rather than multiplying 3*16 b/c multiplication comes before addition
Part B:
7 + 3 * (10 - 6) ^2
7+ 3 * (4)^2
7+3 * 16
7 + 48
55
Step-by-step explanation:
Answer:
Part A:
Jillian's error was that they added the 7 and the 3 to get 10 and then multiplied by 16. Jillian should have multiplied the 3 and the 16 first and then added 7. This is because multiplication comes before addition in PEMDAS.
Part B:
7+3×(10-6)^2
7+3×(4)^2
7+3×16
7+48
55
Step-by-step explanation:
PEMDAS
evaluate 5a4 + 6b3 when a = 4 and b=-1
Answer:
1,274
Step-by-step explanation:
5a^4 + 6b^3 when a = 4 and b = -1
~Substitute
5(4)^4 + 6(-1)^3
~Solve the exponents
5(256) + 6(-1)
~Multiply
1280 - 6
~Subtract
1,274
Best of Luck!
what is the formula to find perimeter
Answer:
Simple,2(l+b)
Step-by-step explanation:
I think you didn't go to school up to mow
A pyramid has a square base with an area of 169ft2. What is the perimeter of the base of the pyramid?
Complete the table for the given rule.
W
Rule: y = 5x
х
y
5
4
2
Answer: 5) 25
4) 20
2) 10
Step-by-step explanation: I assume the values of 5,4, and 2 are those of X.
Use these values in the equation. E.g.
For x = 5, y = 5*(5) or 25
For x = 2, y = 5*(2) or 10
Please helpppp. It's due in an hour
Answer:
sowwy
Step-by-step explanation:
i can't help WITH MY SMALL BRAIN
10 3/20 absolute value
Answer:
the absolute value of 10 3/20 is 10 3/20. if they want it as an improper fraction, its 203/20
Step-by-step explanation:
In the attachment below I need you to find m∠DBC.
Answer:
m<DBC = 109
Step-by-step explanation:
8x-27=6x+7
8x=6x+34
2x=34
x=17
8(17)-27= 109
Answer: 109
Step-by-step explanation:
i'm not entirely sure of this answer as its been a while since ive done problems like this, however, i think the steps to solve are setting (8x-27) equal to (6x+7). Once you do that, you can solve for x. Substitute x into angle DBC to find the answer.
the hcf of 90 and x is 18. the lcm of 90 and x is 540. find the value of x.
The value of x is 108.
What is HCF?The highest common factor is defined as the set of numbers with the highest common multiple. The highest positive integer with more than one factor in the set is HCF.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
We have been given that the HCF of 90 and x is 18.
And the LCM of 90 and x is 540.
We have to determine the value of x.
Since the product of two numbers equals the product of their HCF and LCM.
So 90 × x= HCF × LCM
Substitute the values of given data,
⇒ 90×x = 18×540
⇒ 90×x = 9720
⇒ x = 9720/90
⇒ x = 108
Hence, the value of x is 108.
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If a function has two points with the same y value what is the average rate of change between them
i have to turn in my assignment soon pls help!!!
find the remainder when x raised to 11+1 is divided by (x+1)
Answer:
The answer is 0
Step-by-step explanation:
[tex]p(x) = {x}^{11} + 1 \\ divisor = x + 1 \\ x = - 1 \\ remainder = p( - 1) = ( - 1)^{11} + 1 \\ = - 1 + 1 \\ 0[/tex]
Please give me brainliest (╥﹏╥)
Answer:
Remainder =0
Step-by-step explanation:
[tex]\begin{array}{c|c|c|c|c|c|c|c|c|c|c|c|c}&x^{11}&x^{10}&x^9&x^8&x^7&x^6&x^5&x^4&x^3&x^2&x^1&1\\----&-&-&-&-&-&-&-&-&-&-&-&-\\&1&0&0&0&0&0&0&0&0&0&0&1\\x=-1&&-1&1&-1&1&-1&1&-1&1&-1&1&-1\\----&-&-&-&-&-&-&-&-&-&-&-&-\\&1&-1&1&-1&1&-1&1&-1&1&-1&1&0&\end{array}\\\\\\x^{11}+1=(x^{10}-x^9+x^8-x^7+x^6-x^5+x^4&-x^3+x^2-x^1+1)(x+1) + 0[/tex]
Which of the following points are more than 5 units from the point P(-2,-2)? Select all that apply.
A (2,1)
B (4, -1)
C (2,4)
D(-7, -7)
E (-5,1)
Answer:
B C D
Step-by-step explanation:
PB = [tex]\sqrt{ (4+2)^2 + (-1+2)^2 }[/tex] = [tex]\sqrt{37}[/tex] = 6.08
PC = [tex]\sqrt{(2+2)^2 + (4+2)^2} = \sqrt{52} = 7.2\\[/tex]
PD = [tex]\sqrt{(-7+2)^2 + (-7+2)^2} = \sqrt{50} = 7.07[/tex]
1/7 x X =1
X x 1/11=1
1 divided by 1/5=
Answer:
x = 7x = 115Step-by-step explanation:
attached.....
The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many does the teacher need to buy for his students ???
Answer:
4565 cm
Step-by-step explanation:
55 * 83
Two complementary angles form a linear pair.
a) None of the choices
b) Sometimes
c) Never
d) Always true
Answer:
always true
Step-by-step explanation:
please help 20 points
General house cleaning (sweeping the floors, vacuuming, laundry etc.)
Answer:
sleeping the floor and vacuuming
i have been struggling for this work that has been assigned to me at the first day of school after a long time.
Answer:
Fill the gaps in this sequence:
25 36 49 64 81 100
This sequence is the numbers 5, 6, 7, 8, 9, and 10 squared.
Work out the cube root of 343, then square it.
49
Since 7 cubed equals 343, then 7 squared is 49.
When you subtract one square number from another the answer is 7.
What are the two square numbers?
16 and 9
These are the only squares that fit the criteria.
Write down a number you can square to give an answer bigger than 200 but smaller than 300.
15, 16, 17
All of those answers work. 15² is 225, 16² is 256, and 17² is 289. You can choose any of them to enter in and it should work.
where do the numbers go in integer whole numbers and natural numbers?
Answer:
integer: 0, -6, -20, 10, 532,
whole numbers: 0, 10, 532
natural numbers: 10, 532
(fractions dont belong in any of the above)
Step-by-step explanation:
help me on this please
Answer:
Choice A
Step-by-step explanation:
how do you find perimeter
Answer:
Multiply the sum of the length and width by two.
Step-by-step explanation:
Can someone please answer this question.
Use the Pythagorean theorem to solve for the diagonal distance
Diagonal = sqrt(50^2 + 150^2)
Diagonal distance = sqrt(25,000)
Diagonal distance = 158.11 feet
Round to 158 feet.
If the stayed on the sidewalk they would walk 50 + 150 = 200 feet.
The distance they saved = 200-158 = 42 feet
Answer: 42 feet.
Angel got a job at in-n-out burger. He works 20 hours a week and makes $15.75 an hour. How much will his
paycheck be after 2 weeks of work (before uncle sam takes away taxes
Multiply hours per week by hourly pay rate:
20 x $15.75 = $315.00 per week
Multiply by 2 weeks:
$315 x 2 = $630
After 2 weeks paycheck is $630
Answer:
630
Step-by-step explanation:
15.75 x 20 = 315
315 is how much Angel makes in one week
315 x 2 = 630
630 is how much he will make in two weeks
The 2 signifies how many weeks have been worked
