Answer:
Step-by-step explanation:née
(−7x 2 −4)+(−7x 2 −6x−2)
-20
Explanation:
( − 7 ^ 2 − 4 ) + ( − 7 ^ 2 − 6 − 2 )
Eliminate the redundant parentheses, subtract the numbers which will get you, combine like terms, rearrange terms, then your solution is:
− 1 4 2 −6 −6
Figure that problem out then you will get -20.
Answer:
−14x^2 − 6x - 6
Step-by-step explanation:
(−7x 2 −4)+(−7x 2 −6x−2) should be written as (−7x^2 −4) + (−7x^2 −6x−2). The " ^ " symbol denotes exponentiation. 7x^2 means "7 times the square of x." We can immediately remove the parentheses, obtaining:
−7x^2 −4 −7x^2 − 6x − 2
Our next step is to combine like terms. For example, -7x^2 appears twice, with the same (negative) sign; summing these up results in -14x^2.
Immediately after doing that, we have:
−14x^2 −4 − 6x − 2
and need to combine the constants -4 and -2:
−14x^2 −6 − 6x
Finally, we write these terms in descending powers of x:
−14x^2 − 6x - 6
Write the equation 2x+3y=1470 in function notation. (Be sure to create a graph and place it in your answer.) Explain what the graph of the function represents. Be sure to use complete sentences.
2x + 3y = 1470
3y = -2x + 1470
y = -2/3 + 490
What is the slope of the line that passes through the points (5, 6) and (5,9)
Answer:
undefined or no solution
Step-by-step explanation:
it repeats the same x-value
Answer:3
Step-by-step explanation:
9-6
over
6-5
=3/1
simplify
m=3
A study showed that a high school junior enrolled in two AP classes studies 25 hours per week with a standard deviation of 6.2 hours. If the school had
300 juniors enrolled in two AP classes, how many would you expect to find who studied more than 25 hours per week? ROUND YOUR ANSWER TO
THE NEAREST WHOLE NUMBER!
A calculator screen displays 9.837E8. Write this number in standard form.
Answer: 983.7 x 10^6
its in the most standard form it can be in now.
The standard form of the given number is 983.7 x 10^6.
We have given that,
The screen displays 9.837E8. Write this number in standard form.
We have to write the above equation in standard form.
What is the standard form of the number?
The standard form of a number is a way of writing the number in a form that follows certain rules. Any number that can be written as a decimal number, between 1.0 and 10.0, multiplied by a power of 10, is said to be in standard form.
We have given 9.837^8
Therefore the standard form of the given number is 983.7 x 10^6.
To learn more about the standard form of number visit:
https://brainly.com/question/1565680
#SPJ2
Find the error for the proposed solution. Then correct the proposed solution.
2x + 18 = 16
2x = 34
2x 34
2 2
X = 17
Answer:
The error is in the second line.
x = -1
Step-by-step explanation:
When solving for "x", you are trying to isolate it, or move everything else to the other side. You may have learned that "what you do to one side, you do to the other" .
2x + 18 = 16
2x = 34 18 was added to the right side, but not to the other.
If you add 18 on both sides, then the equation would be:
2x + 36 = 34 "x" is not being isolated.
Instead, you should subtract 18 from 16.
Correct solutions steps:
2x + 18 = 16
2x + 18 - 18 = 16 - 18 Subtract 18 from both sides to cancel out 18
2x = -2
2x/2 = -2/2 Divide both sides by 2
x = -1 Final answer
What is the surface area of the victory podium shown here? Include all surfaces of the podium, including the bottom. A. 61.5 square feet B. 61.75 square feet C. 65.25 square feet D. 69 square feet
Answer:
69
Step-by-step explanation:
the formula is 2( base x height) + 2 (base x width) + 2( height x width)
do that for top rectangle and bottom and add them together
Answer:
65.25 square feet.
Select the correct answer from each drop-down menu.
Brittany conducted a series of surveys to gather data on the ages of pet cats. The sample means for each survey are shown in the table,
Sample Mean (years)
Sample
1
15.09
2
14.45
3
14.91
4
15.09
5
14.91
6
15.82
7
14.36
8
15.55
9
14.36
10
15.27
Use this information to complete the statements.
The average of the sample means is
As the number of surveys conducted increases, the average of the sample means approaches the
Answer: The sample mean is 14.98
The second one is NOT standard deviation
Step-by-step explanation: Sorry thats all i got but good luck!
Ummmm so I tried to figure it out but I’m really confused pls help
Answer:
The price of one ticket is $76.
Step-by-step explanation:
5% of $330 is $16.50 and 45% of $330 is $148.50. Add those two together and then add $13 to it. You should get 178 and subtract it from 330 which leads you to 152. It asks for the price of one ticket, so you divide that by 2 which results to $76.
Solve:
2(x - 3) + (x + 3) = 6x
Answer: x=−1
Step-by-step explanation: Hope this help :D
Answer:
x=-1
Step-by-step explanation:
Need help plzzz with math 20 point plzz help 20 points no links or imma report
Answer:
The answer is C
Explain:
Solve for x in the first equation.
Add 4y to both sides of the equation
3x=12+4y
12y-9x=36
Divide each term by 3 and simplify
X=4+4y/3
12y-9x=36
Replace all occurrences of x with 4+4y/3 in each equation.
-36=36
X=4+4y/3
Since -36=36 is not true, there is no solution
PLEASE HELP ME
At a digital store, Jay paid a total of $31.35 for games and movie rental. He rented 6 games at $3.99 each game and 3 movies.
How much did Jay pay per movie?
$23.94
$3.48
$7.41
$2.47
Answer: 2.47
Step-by-step explanation:
6 times 3.99 is 23.94
31.24 minus 23.94 is 7.30
2.47 times 3 is 7.30
The cargo of the truck weighs less than 2,800 pounds. Use w to represent the weight (in pounds) of the cargo.
Answer:
w < 2,800lb
Step-by-step explanation:
w weighs less than 2,800 pounds.
Could someone help me, please?
Answer:
b=56°
Step-by-step explanation:
Write an equation of the line that passes through the points: (-3, 0), (0,0)
Answer:
y=0
Step-by-step explanation:
y=mx+b
the slope is 0
y=0x+b
y=b
b is the y intercept... also 0.
so
y=0
Jason solved the percent problem below and got
X=133%. Did he do it correctly? Explain your reasoning.
Answer:
No is incorrect 4/27 is right
Step-by-step explanation:
The area of a rectangle is 38.5 square inches. The base of the rectangle is 4 inches. What is the height of rectangle?
Pls help me on this one. PLSSS :(
Answer:
The answer is 9.625
Step-by-step explanation:
So what you have is the area and the base of the rectangle. To find the height, just divide 4 into 38.5
38.5 / 4 = 9.625
To double check just multiple 9.625 by 4
9.625 x 4 = 38.5
Hope this helps
Seventh grade > G.16 Add, subtract,
At the farmers' market, Ken bought 7/10 of a pound of string beans and 1/2 of a pound of
lima beans. How many more pounds of string beans did Ken purchase?
Answer:6/8
Step-by-step explanation:
Answer:
Ken bought 2/10 of a pond more of string beans then lima beans.
Step-by-step explanation:
1/2 = 5/10
7/10 - 5/10 = 2/10
2/10 = 1/5 if you need a more simplified answer.
Hope this helped!
What is Y= -1/3x + 3
Answer:
Slope: -1/3 y-intercept: (0,3) x-intercept: (9,0)
Step-by-step explanation:
ASKING FOR A LONG TIME PLS HELP GONNA MAKE BRAINLIEST all i know is 20 2/3 is not right. TYSM
Answer:
it is 20 2/3
Step-by-step explanation:
because the area/formula of a rectangle is l x w so multiply the 4 and 5 2/3 and you get B...
y = x-6
5x - 2y = -30
Show work
Answer:
y=x-6
5x-2y=-30
5x-2(x-6)=-30
3x+12=-30
3x=-42
x=-14
y=x-6
y=-14-6
y=-20
(-14, -20)
Step-by-step explanation:
i hope this helps :)
i used substitution, by the way
The circumference of a circle is 20 pi find it's diameter in inches
Answer:
20 in.
Step-by-step explanation:
A pair of jeans at American eagle cost $35.00. if the sales tax is 5% how much do the jeans cost total?
A $36.75
B $1.75
C $33.25
D $33.33
Answer:
$36.75
Step-by-step explanation:
If you take the original cost 35.00 and add 5% to it, you would get 36.75. If you think about it, it has to be above $35 since the sales tax would be more.
Answer: A - $36.75
Step-by-step explanation: Used a sale tax calculator. Hope this helps!
Dishwasher detergent is sold in individual packs is sold in 20, 60 and 90 pack containers which container do you think has the lowest unit rate of dollars per pack and why
Answer:
I think 90
Step-by-step explanation:
Would help if you provided more information
HELPP ME PLEASE!!
use floats and anchors to explain why it makes sense that (-2) (-4) is positive
Which property is used in the following expression? 2 x 3 = 3 x 2
a. Commutative Property of Addition
b. Associative Property of Multiplication
c. Distributive Property Associative Property of Addition
d. Commutative Property of Multiplication
Answer:
because i learned it in class 2 years ago
Step-by-step explanation:
b. Associative Property of Multiplication
what is the surface of a cubiod sides 2cm,3cm and 5cm?
Answer: A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
Step-by-step explanation:
Step-by-step explanation:
2×3×2+2×5×2+3×5×2
12+20+30
=62
Help please. Question below.
Given the isosceles trapezoid EFGH and side length JL = 93 units. If the length of KN = (3x + 1) and MN = (5x - 4), what is the length of KM?
Answer:
KM=JL=93 units
or KM=KN + MN= 8x-3
Step-by-step explanation:
The value of length of KM can be equal to either JL or obtained by adding KN = (3x + 1) and MN = (5x - 4) depending on the diagram.
An isosceles trapezoid has non parallel sides congruent.
In the isosceles trapezoid the diagonals are also equal.
There is a pair of parallel lines in an isosceles trapezoid.
In the 1st figure trapezoid JL and KM are diagonals.
If we take the JM and KL to be the parallel lines then the opposite sides can be JK and LM
And N is the middle line or the mid segment.
In the figure 2
The value of length of KM is obtained by adding KN = (3x + 1) and MN = (5x - 4)
KM=KN + MN = (5x - 4) +(3x + 1)
KM=8x- 3
can someone just explain to me how to do this please
Answer: -7.5
Step-by-step explanation:
area = 1/2bh.
area = 1/2(x+6)(5)
area = x/2 + 15
area = x/2 = -15
area = x = -7.5
area = -7.5