what is the slope of a line that passes through (-4,1) and (5,2)
4 subtracted from twice w, the result is 20 more than w. Find w
Answer:
w = 24
I hope this helps!
An airplane takes off over flat area when it is 2500' above the Earth it has covered 3000' on the ground how many feet approximately has it flow through the air
Answer:
3905.12 feet
Step-by-step explanation:
we can form a triangle in order to use the Pythagorean theorem: a² + b² = h²
where:
a = distance covered on the ground
b = height above the Earth
3000² + 2500² = h²
h² = 9000000 + 6250000 = 15250000
h = √15250000
h = 3905.12 feet
If 2x-1 = 13, evaluate the expression below. -x^2-4x
Explain please.
Answer: -77
Step-by-step explanation:
2x - 1 = 13
Add 1 on both sides
2x = 14
x = 7
Substitute x to 7
-(7)^2 -4(7)
Solve
-49 - 28 = -77
Answer:
-77
Step-by-step explanation:
-x^2-4x to [tex]-7^{2}[/tex]- ( 4 × 7)
-7^2 - ( 4 × 7)
-49 - ( 4 × 7)
-49 -28
=
-77
Solve x2+8x-10=0 by completing the square. What are the solutions? *answer choices are in the picture
Answer:
Last option
Step-by-step explanation:
Step 1: Write out equation
x² + 8x - 10 = 0
Step 2: Add 10 to both sides
x² + 8x = 10
Step 3: Complete the Square
x² + 8x + 16 = 10 + 16
(x + 4)² = 26
Step 4: Square root both sides
x + 4 = ±√26
Step 5: Subtract 4 on both sides
x = -4 ± √26
Calculate x if the mean of 30, x, 12, 40, and 10 is equal to x.
Answer:
23
Step-by-step explanation:
Let the mean also is x
Mean = Sum of all observations / Total no of observations
x = 30 + 12 + 40 + 10 + x / 5
5x = 92 + x
4x = 92
x = 23
Therefore 23 is the mean and also one of the numbers.
The value of x such that mean of 30, x, 12, 40, and 10 is equal to x will be 23.
What is mean?The mean is the average of a data set. Mean gives us an idea of that how much amount of overall data have.
Mean = sum of data / Number of data
It is known that,
Mean = sum of data / Number of data
x = (30 + x + 12 + 40 + 10)/5
5x = x + 92
4x = 92
x = 23
Hence "The value of x such that mean of 30, x, 12, 40, and 10 is equal to x will be 23".
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A parent volunteer group is raising money by making custom hats to sell at school activities they plan to sell the hats for $11 each hat costs $5 to make they spent $50 advertising
Answer:
(11 - 5)n - 50Step-by-step explanation:
Cost of 1 hat = $5Selling price = $11Advertising = $50Let the number of hats be n. Then money made is
Profit for each hat:
(11-5)Profit for n hats
(11 - 5)nDeduct cost of advertisement - 50
(11 - 5)n - 50Option C is correct
Julio says, "if you subtract 14 from my number and multiply the difference by -2, the result is -42." what is julio's number?
Answer:
let the number is x
-2(x-14) = -42
-2x + 28 =-42
-2x = -70
x= 35
Step-by-step explanation:
When Scott got his dog Arfus, it weighed
6 lb. Six months later it weighed 8 lb.
How much weight did Arfus gain?
Please please help
|q-8|=14
Answer:
22, -6
Step-by-step explanation:
q-8=14 or 8-q=14
q=22 or q= -6
Answer:
the answer for the problem |q-8|=14 is q=22 or q= -6
one third of one seventh of a land is sold for RS. 30000.What is the value of land?
Answer:
Step-by-step explanation:
Let the value of the land = Rs . 30000
[tex]\frac{1}{3}of\frac{1}{7}of x = 30000\\\\\\\frac{1}{3}*\frac{1}{7}*x = 30000\\\\\\x = 30000*\frac{3}{1}*\frac{7}{1}\\\\\\[/tex]
x = Rs. 630000
6/10= x/15 Whats is the x?
Answer:
9
Step-by-step explanation:
Step 1:
6/10 = x/15
Step 2:
10x = 90
Answer:
x = 9
Hope This Helps :)
Answer:
x=9
Step-by-step explanation:
6/10 =x/15
10x =15 ×`6
10x =90
x=90 :10
x=9
On what dThe function f(x) = x5 + (x + 3)2 is used to create this table. A 2-column table with 4 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1. The second column is labeled f of x with entries negative 31, question mark, 9, 17. Which value completes the table? –17 –3 1 3
Answer:
the answer is 3
Step-by-step explanation:
I just did it
The value of the function for x=-1 is 3.
The given function is [tex]f(x)=x^{5} +(x+3)^{2}[/tex].
What is a function?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.
From the table, we get coordinates as (-2, -31), (-1, y), (0, 9) and (1, 17).
To find the y value of the coordinate (-1, y), substitute x=-1 in the given function.
That is, [tex]f(-1)=(-1)^{5} +(-1+3)^{2}=3[/tex]
Therefore, option D is the correct answer.
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4. Simplify the following using the quotient rule of exponents:
(1 Point)
33 = 33
31
33
30
3-
!!!!!!!!!!!!!!!!!!!
Answer:
31=1/1
33=1/1
30=3/10
3-=-3
Step-by-step explanation:
2(w-9)=5w+6+w i need help on this question?
Answer:
w=-6
Step-by-step explanation:
2(w-9)=5w+6+w
multiply 2 to the (w-9), also add the 5w to the other w
2w-18=6w+6
subtract 2w to 6w
-18=4w+6
subtract 6 to -18
-24=4w
divide 4 to -24
THE ANSWER IS -6
Which expression represents the following number line?
+++++++++
-8-7-6-5-4-3-2-1012
0-6+3 = 3
6+3=3
0-6-3= -3
3-6-3
Help ASAP
X + 9 = 7
How do you move the constant to the right side and change it’s sign
Step-by-step explanation:
X + 9= 7
get x by itself you -9 on both sides
X + 9 = 7
- 9. -9
X = -2
What is the exact number of hundreds in 4,575?
Answer:
45
Step-by-step explanation:
3rd from the left and over r considered 100s
A new computer game costs $32.50. Find the cost with tax if the tax is
7%. Round to the nearest cent. *
*
Answer:
$34.78
Step-by-step explanation:
...............
(30 points) find the measure of each lettered angle a= b= c= d= e= f= g= h= i=
Answer:
a=90 b=90 c=90 d=148 e=32 f=148 g= 122 h=58 l=122
Step-by-step explanation:
a is supp. to 90 degrees, therefore it is 90 (180-90)=90.
b and c are vertical angles, therefore they are the same as the angle directly across from them
d is supp. to 32 degrees, therefore it is 148 (180-32)=148
e and f are vertical angles, therefore they are the same as the angle directly across from them
g is supp. to 58 degrees, therefore it is 122 (180-58)=122
h and l are vertical angles, therefore they are the same as the angle directly across from them
where is sandy mistake ive been trying for 30 mintues and still cant find it im not very good at math please help
Answer:
Sandy did not follow PEMDAS and added first instead of doing her multiplication and division and then her addition and subtraction the answer would be 18
The math club at Emily's middle school has 40 members. Only 85% of the members attend Saturday meetings. Use the number line below to determine the number of members who attend Saturday's mee
Answer: 34 members.
Step-by-step explanation:
We have 40 members.
Only 85% of them attend the Saturday meetings.
If we have a set of N objects, and the x% of them can be calculated as:
(x%/100%)*N
Now, if we want to know the exact amount that attends the Saturday meetings, then we must compute:
(85%/100%)*40 = 0.85*40 = 34.
Answer:
Please see attached number line
The 85% corresponds with having 34 members in attending Saturday meetings
Step-by-step explanation:
The number of members in the math club at Emily's middle school = 40
The percentage of members that attend Saturday meetings = 85%
Therefore, the number of members that attend Saturday meetings is given as follows;
85% of 40 = 0.85 × 40 = 34 members
Where we have a number line graduated in percentages, we get;
Percentage of members, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
Number of members, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40
Therefore, the 85% corresponds with having 34 members in attending Saturday meetings
What is 5x-(3+7)=9+2(x-8)
Answer:
x= 1
Step-by-step explanation:
5x - (3+7)=9+2(x-8)
Add the numbers 3 + 7= 10
5x - 10= 9 + 2(x-8)
Expand 9 + 2(x-8): 2x - 7
5x - 10 = 2x - 7
Add 10 to both sides
5x -10 + 10 = 2x -7 + 10
Simplify 5x = 2x + 3
Subtract 2x from both sides
5x -2x = 2x + 3- 2x
Simplify
3x = 3
Divide both sides by 3
3x/3 =3/3
Simplify
x= 1
HELP!!!!
It was saying that my question is to short so I am just writing this to make it longer! and Thank you to the person who answers my question I do appreciate you taking time out of your day to help me!
What is the first step of the following division problem?
(8x3 – x2 + 6x + 7) ÷ (2x – 1)
Divide 8x3 by 2x.
Divide 2x by 8x3.
Divide 6x by 2x.
Divide 2x by 6x.
Answer:
Divide 8x^3 by 2x
Step-by-step explanation:
Here, we want to identify the first step to take in the polynomial division.
When working with a polynomial division, what to do is to divide the first term of the dividend by the first term of the divisor ( the divisor is arranged in descending powers of x)
The number we want to divide is the dividend, while the number we are using to divide is the divisor.
In this case, the first term of the dividend is 8x^3 while that of the divisor is 2x
The first step of the following division problem is to divide 8x³ by 2x
How to divide polynomialsGiven:
(8x³ – x2 + 6x + 7) ÷ (2x – 1)
(8x³ – x2 + 6x + 7) is the divided
(2x – 1) is the divisor
Dividend is number or expression that is to be divided by anotherDivisor is the number which is used to divide another.The first step in the be division of polynomial is to divide the first term of the bc dividend by the first term of the divisor.
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40x-20=100+10x x= Please help asap!
Answer:
x= 4
Step-by-step explanation:
40x-20=100+10x
Subtract 10x and add 20 both sides:
30x= 120
x=4
The ratio table below shows the number of eggs per omelet.
Omelets
Number of eggs
Number of omelets
18
?
9
3
6
2
3
1
How many omelets can be made with 18 eggs?
4
6
9
12.
Answer:
B(6
Step-by-step explanation:
The number of omelets made by 18 eggs will be 6. The correct option is B.
What is the ratio?
In mathematics, ratios are used to determine the relationship between two numbers it indicates how many times is one number to another number. The fraction is defined as the division of the whole part into an equal number of parts.
The number of eggs required to make the number of omelets is given in the tables as:-
omelets eggs
? 18
3 9
2 6
1 3
The ratio of omelets and egg is calculated as:-
omelets: egg = 3 : 9
omelets: egg = 1:3
The number of the omelets made by 18 eggs will be calculated as below:-
omelets: egg = 1:3
omelets: 18 = 1:3
omelets = 18 x ( 1 / 3 )
omelets = 6
Therefore, the number of omelets made by 18 eggs will be 6.
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What is this called? I’m trying to look up a video on how to do these.
y = - 7/2x -4
Answer:
linear equations, only when it is y=(equation with an x
variable)) or x=(equation with an y
variable), usually you tend to graph these.
Choices are...
A)1120
B)2275
C)3500
D)2345
It's Side Splitter Theorem
Answer:
B
Step-by-step explanation:
The sections of the parallel roads split by the transversals are in proportion, that is
[tex]\frac{350}{300}[/tex] = [tex]\frac{first}{1650}[/tex] ( cross- multiply )
300 first = 577500 ( divide both sides by 300 )
first = 1925 ft
Thus
Elm st → Maple st = 1925 + 350 = 2275 ft → B
If the top of Mt. Everest is 29,035 ft and Death Valley in California at it's lowest point is negative 282 ft. What is the difference between the top of Everest and the bottom of the Valley?
Answer: 29317
Step-by-step explanation: