Answers
Answer:
21x² + 22x - 8
Step-by-step explanation:
(3x+4)(7x-2) = 21x² - 6x + 28x - 8 = 21x² + 22x - 8
Answer:
B.
Step-by-step explanation:
Let's use the FOIL (First, Outside, Inner, Last) method.
We need to multiply the first terms in each pair of parentheses, which are
3x and 7x.
Multiplying, we get [tex]21x^2[/tex].
We multiply the outside terms in each pair, which are 3x and -2.
Multiplying, we get [tex]-6x[/tex]. Remember that since -2 is negative, then the whole product is negative.
We need to multiply the inner terms now. They are 4 and 7x.
Multiplying, we get [tex]28x[/tex].
Finally, we multiply the last terms in each pair of parentheses. they are 4 and -2.
Multiplying, we get [tex]-8[/tex].
Now, we put the terms together.
[tex]21x^2-6x+28x-8[/tex]
We can combine -6x, and 28x. Doing this, we get
[tex]21x^2+22x-8[/tex]. Which gives us B.
I hope this helped.
Related Questions
Pls help it’s due today
Answers
Answer: y = 2/1x + 2
Step-by-step explanation:
A slope of 2 means rising 2 and run 1 on a graph. This would make x = 2/1. The + 2 allows the line to pass through (0,2) and therefore it will also pass through (-2,-2).
Does anyone have the answer for this
Answers
Answer:
The answer is 3a-27
You just gotta combine like terms (hope this helps)
Answer:3a-27.
hope it helps.
ABCD is a rectangle that represents a park. The lines show all the paths in the park. The circular path is in the center of the rectangle and has a diameter of 15
Answers
Complete Question:
ABCD Is a rectangle that represents a park.
The lines show all the paths in the park.
The circular path is in the centre of the rectangle and has a diameter of 15m.
Calculate the shortest distance from A to C across the park,using only the lines shown.
*See attachment for the diagram showing the paths in the park.
Answer:
Shortest distance from A to C through the paths only = 102.9 m
Step-by-step explanation:
Length of park = 80 m
Width of park = 50 m
Diameter of the circular path in the center of the park = 15 m
Therefore:
Shortest distance between from A to C across the park if we're to follow only the lines showing the oaths would be = (length of diagonal AC - diameter of the circular path) + (½ of the circumference of the circular path)
✔️Use pythagorean theorem to find AC:
AC = √(80² + 50²) = √8,900
AC = 94.3398113 ≈ 94.34 m (nearest hundredth)
✔️Diameter of circular path = 15 m
✔️½ of the circumference of the circular path = ½(πd)
d = 15 m
½ of the circumference = ½(π*15) = 23.5619449 ≈ 23.56 m (nearest hundredth)
✔️Shortest distance = (94.34 - 15) + 23.56 = 79.34 + 23.56 = 102.9 m
Answer:
Step-by-step explanation:
find each unit rate: 200 miles per 10 gallons
Answers
Answer:
20 gallons per mile
which property is shown 12+(8+5)=(12+8)+5
Answers
Answer:
I believe substitution not 100% though
Step-by-step explanation:
you sub in the 12 for the 8 the 8 for the 5 and the 5 for the 12 hope it is right
Answer: associative property
Step-by-step explanation:
In the equation the parentheses are rearranged which is the associative property.
Which ch situation would be represented by zero? A $3 loss and a $4 profit
A $3 loss
A $4 loss and a $4 profit
A $4 profit
Answers
Answer:
A $4 profit
Step-by-step explanation:
Answer:
jalvarez06 is correct
Step-by-step explanation:
(-5)+(-2) - (+8) - (-1) =
help plisssssss
Answers
Answer:
-14
Step-by-step explanation:
(-5)+(-2)-8-(-1)
-5-2-8+1
-7-8+1
-15+1
-14
Answer:
-14
Step-by-step explanation:
(-5)+(-2) - (+8) - (-1)
-5-2-8+1
-15+1
-14
I need help and work shown please
Answers
9514 1404 393
Answer:
x ≈ 32.4
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the relation between angle, adjacent side, and hypotenuse:
Cos = Adjacent/Hypotenuse
cos(72°) = 10/x
x = 10/cos(72°)
x ≈ 32.4
Divide. Write the quotient in lowest terms.
Answers
Answer:
10
Step-by-step explanation:
Turn this into multiplication by doing 12*(5/6) = 10
£24 in the ratio 1:2:3
Answers
Answer:
so the answers are £4, £8 ,£12
NEED URGENT HELP
‼️HARD QUESTION ALERT‼️
What’s 1+1?
Answers
Answer:
6
Step-by-step explanation:
n a cookie recipe, there are 3 parts ugar and 2 parts flour. For every cup of our, how much sugar do you need?
Answers
Answer: For every cup of flour we need 2/3 cups of sugar.
For every cup of sugar you need 3/2 cups of flour.
Step-by-step explanation:
will give brainly need help asap
Answers
Answer:
Hank
8x+12x=180
Step-by-step explanation:
Hank is correct because the angles that are given are supplementary so they are going to add up to 180. Jill is incorrect because the angles are not congruent
This is the correct answer once again because the angles are supplementary so the two added with equal 180
Answer: x = 70
Step-by-step explanation:
Given that KB = 28, what is the measure of angle KBL and segment KA
Answers
Answer:
KA = 28
∠KBL = 90°
Step-by-step explanation:
KA = KB (both are radii)
KB = 28, so KA = 28
∠KBL = 90° because tangents are perpendicular to the radius
tytucend 121' (12") (3/4"),
much trous 121" (21)62),
Which the futured 122 cm
Choose 1
Only Melodie
Both and Me
?
Answers
Answer:
Can you write more specifically the question please
Step-by-step explanation:
each year Malcolm earns 120 hours of vacation time at his job.There are 52 weeks in a year. what is the approximate number of hours of vacation time that Malcolm earns each week ?
Answers
fx) = -3x² + 2x - 7, then f(-1) =
Answers
Given:
The function is
[tex]f(x)=-3x^2+2x-7[/tex]
To find:
The value of f(-1).
Solution:
We have,
[tex]f(x)=-3x^2+2x-7[/tex]
Putting x=-1, we get
[tex]f(-1)=-3(-1)^2+2(-1)-7[/tex]
[tex]f(-1)=-3(1)-2-7[/tex]
[tex]f(-1)=-3-9[/tex]
[tex]f(-1)=-12[/tex]
Therefore, the value of f(-1) is -12.
a farmer divides 20 acreas of land into one fourth sections. Into how many sections does the farmer divide her land?
Answers
Answer:
5 acres per section
Step-by-step explanation:
Question 3
Blank one: ____________
Answers
Answer:
30???????????
Step-by-step explanation:
Use your equivalent expression to find the area of Brian's garden, in square feet, if x = 3 and y = 4. 3 points Part A: The area of Brian's rectangular garden, in square feet, can be found by using the expression 6(2x + 5y). Use the distributive property to write an equivalent expression for the ares of Brian's garden.
Answers
Answer:
156 square feet
Step-by-step explanation:
The area of Brian's rectangular garden, in square feet, can be found by using the expression 6(2x + 5y).
If x = 3 and y = 4
Substituting
6(2 × 3 + 5 ×4) square feet
6(6 + 20) square feet
Using Distributive property
6(6 + 20) square feet =( 6 × 6) + (6 × 20) square feet
6(6 + 20) square feet =(36+ 120) square feet
6(6 + 20) square feet = 156 square feet
Therefore, the area of Brian's rectangular garden, in square feet is 156 square feet
Find the range and interquartile range for 13 14 18 13, 12, 17, 15 and 12.
Answers
Answer:
range = 6
IQR = 3.5
Step-by-step explanation:
range is greatest - least
18-12=6
IQR is the difference between quartile 3 and quartile 1
to find IQR you would want to put the numbers in order first
12, 12, 13, 13, 14, 15, 17, 18
then find the median of that set of numbers (you don't need to find the exact number just know where it is)
12, 12, 13, 13, || 14, 15, 17, 18
so the median is between 13 and 14 (where the || is)
then we find the median on both sides of the ||
find the median of 12, 12, 13, 13 and 14, 15, 17, 18
12, 12, || 13, 13 and 14, 15, || 17, 18
the medians are 12.5 and 16
subtract 12.5 from 16 to get 3.5
the IQR is 3.5
Which table represents the same linear relationship
as y = 2x - 5?
х
2
4
A
у
-5
-1
3
х
o
N
4
B
y
-5
1
3
х
0
2
4
с
y
N
-1
3
х
0
2
4
D
у
2.
2
3
A
B
Ob
Ос
U
d
D
Answers
Answer:
A
Step-by-step explanation:
multiply 0 by 2 | 0 x 2 = 0
subtract 5 from 0 | 0 - 5 = -5
multiply 2 by 2 | 2 x 2 = 4
subtract 5 from 4 | 4 - 5 = -1
The table that represents the same linear relationship as the linear equation y = 2x - 5 is; Table A
What is the best table for the linear relationship?
The given equation is; y = 2x - 5
For the first table;
At x = 2, we have;
y = 2(2) - 5
y = -1
This and other values with input of x corresponds with the table.
For the second table;
At x = 2, we see that y = 1 instead of -1 and so this table is not correct.
For tables 3 and 4, we see that when we see that they both give the wrong values of y at x = 0 and so they are both wrong.
Read more about Linear relationship at; https://brainly.com/question/7040405
Find the least common denominator between the two fractions. 1/2 and 5/6 2 6 8 12
Answers
Answer:6
Step-by-step explanation:
Please help will mark brainliest!
Write an inequality to represent each situation
1. Anyone over the age 14 must buy an adult ticket.
2. Kendra can spend at most $8 on lunch
Answers
Independent Practice
Find the range of the function rule y = 5x – 2 for the domain.
{0.5, 11}
A.
{2.6, 0.5}
B.
{4.5, 57}
C.
{0.5, 2.6}
D.
{0.5, 53}
Answers
2 = t/6 ( t/6 means divide )
Answers
Answer:
T = 12
Step-by-step explanation:
12/6=2
2x + 3y = 10
In the xy-plane, the graph of which of the following equations is perpendicular to the graph of
the equation above?
•y=-3/2x-10 •y=-2/3x+10 •y=2/3x+10 •y=3/2x-10
Answers
Explanation
Subtract 2x to 10
3y= -2x + 10
Divide by 3
Y= -2/3x+10
The graph formed by equation y= -2/3x+10 will be perpendicular to the graph by equation y=3/2x-10.
What is the slope of any line?A line in the form of ax + by + d = 0 will be a linear equation and if we convert it into the form of y = mx + c where m will be the slope of that equation.
If two lines are perpendicular to each other then the product of their slope of them will be (-1).
⇒ m₁ ₓ m₂ = -1
The slope of line 2x + 3y = 10 will be -2/3
To be any line perpendicular whose slope m with the 2x + 3y = 10
⇒ -2/3 × m = -1
⇒ m = 3/2 so the slope of that line should be 3/2
Hence, line y=3/2x-10 will be perpendicular to the 2x + 3y = 10.
For further information about slope of line
https://brainly.com/question/14511992
#SPJ5
You invest $100.000 in an account with 1.05% interest, compounded quarterly. Assume you don't withdraw or deposit any money. How much money will you have in the account after 25 years?
Answers
Mhanifa please help!! I will mark brainliest!please hurry. Random answers will be reported!
Answers
Answer:
Q1x = 113° as alternate exterior angles are equalQ2Parallel lines have same slope
The given line y - 2x = 8, in slope-intercept form it is:
y = 2x + 8The slope is 2 and the first line has same slope.
Option A. y = 2x + 5Q3Supplementary angles sum to 180°°
Supplement of ∠R is:
180° - 132.6° = 47.4°There are seventeen red and thirteen green apples in a bag. I am going to take out an apple without looking. What is the probability that the apple will be green?Immersive Reader
Answers
Answer:
13/30
Step-by-step explanation:
There are seventeen red and thirteen green apples in a bag. I am going to take out an apple without looking. What is the probability that the apple will be green?
The Probability that the apple that will be picked is green is calculated as:
Number of green apples/ Total number of apples
Total number of apples = 17 red apples + 13 green apples
= 30 apples
Hence:
P( Green apples) = 13/30