Answer:
A=-1/2
If you search it up, it will show you all the steps
help, i was out sick for most of the week before and didnt learn this materal, i really need help
Answer:
example 1 is correct
a^2 - b^2 factors as (a+b)(a-b)
that is a form that math teachers want you to memorize
it is called the "difference of squares" factoring
Step-by-step explanation:
[tex]-2b-(-7)=11[/tex]
[tex] - 2b - ( - 7) = 11 \\ \\ - 2b + 7 = 11 \\ \\ - 2b = 11 - 7 \\ \\ - 2b = 4 \\ \\ b = \frac{4}{ 2} \\ \\ b = 2[/tex]
Hope it help youAnswer:
b = -2
Step-by-step explanation:
[tex] - 2b - ( - 7) = 11[/tex]
[tex] - 2b + 7 = 11[/tex]
[tex] - 2b + 7 - 7 = 11 - 7[/tex]
[tex] - 2b = 11 - 7[/tex]
[tex] - 2b = 4[/tex]
[tex]b = 4 \div( - 2) = - 4 \div 2 [/tex]
[tex]\boxed{\green{b = - 2}}[/tex]
Evaluate (3x + 5) - (2x + 7) when x = 5.
A. 30 - 34 = -4
B. 20 - 17 = 3
C. 20 - 10 + 7 = 17
D. 30 + 34 = 64
13 of 13
Answer:
The answer is B. 20 - 17 = 3
Step-by-step explanation:
( 3x + 5) - (2x + 7)...... x = 5
( 3(5) + 5) - ( 2(5) + 7)
( 15 + 5) - (10 + 17)
20 - 17 = 3
Thank you :)
Answer:
The answer is 20 - 17 = 3 [Choice B.]
Step-by-step explanation:
Put x = 5 into the formula (3x + 5) - (2x + 7)
[3(5)+5] - [2(5)+7]
= [15 + 5] - [10 + 7]
=20 - 17
= 3
Can someone help me (Geometry)
Answer:
sum of angles on a straight line =180 degrees
DAB=180-36-35=109 degrees
what is 7.04 trillion in scientific notation?
Answer:
According to Answers.com the answer is 7.04 1012
And according to AnswerGuru its 7.04 trillion = 7.04 x 10¹²
8) Carol earns $5.25 per hour. She worked 15 hours
last week. How much did he earn?
A. $82.50
B. $78.75
B. $52.15
D. $25.85
the answer is $78.75 i did the math to this problem
Need answer ASAP please help
Answer:
B
Step-by-step explanation:
Which two integers is 91 squared by 3 between
Answer:
9 and 10
Step-by-step explanation:
In the last year,a total of 14,905 earthquakes occurred in a country. Of these,88.8% were minor tremors with magnitude of 4.9 or less on the Richter scale. How many minor earthquakes occurred in the country in the last year?
Answer:
13,236 minor earthquakes occurred
Step-by-step explanation:
[tex]\frac{Part}{Total}[/tex]
"x" part amount of earthquakes
14,905 total amount of earthquakes
88.8 % part percentage of earthquakes
100% total percentage of earthquakes
[tex]\frac{x}{14905}[/tex] = [tex]\frac{88.8}{100}[/tex]
x = 14,905 × [tex]\frac{88.8}{100}[/tex]
x = 14,905 × 0.888 = 13,235.64 ≈ 13,236 minor earthquakes occurred
Piano lessons cost 30 dollars for 3/4 hour how much for an hour
Answer:
40
Step-by-step explanation:
Divide 30 by 3 to find 1/4. You get 10.
Multiply 10 by 4 to find 4/4. You get 40.
Evaluate the expression.
6(3 + 5)
26.
4
HELP
Answer =1267.2
Step-by-step explanation:
6(3+5)26.4
6×8×26.4
48×26.4
1267.2 is the answer
Kakuro is like a crossword puzzle with numbers.
9514 1404 393
Answer:
[[. . 3 6 .][1 3 4 9 .][9 2 . 7 1][. 1 2 8 3][. 4 9 . . ]]
Step-by-step explanation:
It is helpful to remember that the first four digits {1, 2, 3, 4} total 10, and the last four digits {6, 7, 8, 9} total 30. It is also worthwhile to note that the smallest sum of two digits is 3 = 1+2, and the largest sum of 2 digits is 17 = 8+9. Some sums can only be made one way: 4 = 1+3, 16 = 7+9.
Here, we will refer to rows 1-5 from the top down, and columns 1-5 from the left to right.
__
Based on the above, column 5 can only be made one way: 1+3. Column 4 can only be made one way: 9+8+7+6. Then the choices for row 3B will be 1+7 or 5+3. We know it can't be 5+3 because 5 is not part of column 4. This makes our first fill-in (row, column) be (3,4)=7, (3,5)=1, (4,5)=3.
The sum of the remaining cells in row 4 must be 14-3 = 11, and cell (4,4) must be 6, 8, or 9. It cannot be 9, because that would require the remaining two cells to have a sum of 2, which they cannot. So, cell (4,4) is 6 or 8.
Cell (1,4) cannot be 9, either, because we cannot use 0 in cell (1,3). Then the only place for 9 in column 4 is in cell (2,4)=9.
With cell (1,4) being restricted to 6 or 8 (the two remaining numbers in column 4, cell (1,3) must be 3 or 1, and cell (2,3) must be 4 or 6. It cannot be 6 because that would require a sum of 2 in the first two cells of row 2, so (2,3)=4, (1,3)=3, and (1,4)=6. This makes (4,4)=8 and the remaining two cells of row 4 must be 1 and 2. 1 cannot go in (4,3), so we must have (4,3)=2 and (5,3)=9, (5,2)=4, (4,2)=1. That leaves 2 and 3 for rows 2 and 3 of column 2. The first two cells of row 2 must total 4, so must be 1 and 3. Cell (2,2) cannot be 1, so must be 3, leaving (2,1)=1, (3,1)=9, (3,2)=2 and that completes it.
The fill-ins are ...
[. . 3 6 .]
[1 3 4 9 .]
[9 2 . 7 1]
[. 1 2 8 3]
[. 4 9 . . ]
1-4 please I’ll make you brainliest NO LINKS NO FILES!!!!!
find the value of x of parallelogram fast
In this figure to find value of x ,length of AC should be given...I dont see the length of AC in the picture..
If ;= -7, what is the value of 13?
-1
i
1
-i
Answer:
B r a i n d o e s n o t c o m p r e h e n d
Step-by-step explanation:
m e n o u n d e r s t a n d
Answer:
M E N E I T H E R ! ! ! !
Step-by-step explanation:
U H h h H H H H H H !!!!!!!!!
The angle made by circle is ______.
Answer:
Step-by-step explanation:
360 degrees
Answer:
No angle is made
Step-by-step explanation:
According to me an angle is a point where two or more lines meet and apparently a circle has no meeting lines expect with given radii , diameters or chords
Integers bigger than 3 and smaller than 10
Answer:
There are 6 integers in-between 3 & 10
Explanation:
Integers are simply whole numbers.
4,5,6,7,8,9.
what is the equivalent of 3/8
Answer:
6/16 is equivalent to 3/8 because after dividing the numerator (6) and denominator (16) we get 3/8.
When one number is divided by another, the result
80 is diviser , 240 is dividend and 3 is quotient
HELP MEE !!!!!!!!!!!!!!
Answer:
I got you
Step-by-step explanation:
your answers are
2. 5/14
3. 5/9
4. I can't see it so I'm going with 8/15
brainliest pls (>m<)
Which shape has a larger area: a rectangle that is 7 inches by 3/4 inch,or a square with side length of 2 and 1/2 inches? Show your reason?
Answer:
The square has the greatest area.
Step-by-step explanation:
Reason:
Rectangle: The area is 5.25 in2
3/4= 0.75
7 in x 0.75 in= 5.25 in2
Square: The area is 6.25 in2
2 1/2= 2.5
2.5 in x 2.5 in= 6.25 in2
(- 3.5)(2/5)
A. -2 2/5
B. 1 2/5
C. -1 2/5
D. 2 2/5
Answer: C. -1 2/5
Step-by-step explanation:
Given expression
(-3.5) (2/5)
Convert decimal into fraction
=(-35/10) (2/5)
=[(-35 ÷ 5) / (10 ÷ 5)] (2/5)
=(-7/2) (2/5)
Simplify by multiplication
=(-7 × 2) / (2 × 5)
Cancel out 2 on both numerator and denominator
=-7/5
Convert improper fraction to mixed fraction
=[tex]\boxed{-1\frac{2}{5} }[/tex]
Hope this helps!! :)
Please let me know if you have any questions
40 points please help
Answer:
[tex]\huge\boxed{-2}[/tex]
Step-by-step explanation:
Use any two points from the line.
Let them be:
(x1,y1) = (0,-2)
(x2,y2) = (-1,0)
Now,
[tex]\displaystyle Slope = \frac{y_2-y_1}{x_2-x_1} \\\\Slope = \frac{0-(-2)}{-1-0} \\\\Slope = \frac{2}{-1} \\\\Slope = -2\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807inductive reason what is next number in sequence 400, 200, 300, 150, 250
Answer:
125
Step-by-step explanation:
400÷2 = 200
300÷2 = 150
so,
250÷2 = 125
Can someone please help me please?
[tex] \large \mathfrak{Answer : }[/tex]
The equation of the red parabola is :
[tex]f(x) = 1 - {x}^{2} [/tex]therefore , correct option in A
A contractor removed 357 cubi c ya rds of earth from a building site. If the contractor’s trucks can haul 17 cubic yards per load, how many truckloads of earth were moved?
Answer:
21 loads
Step-by-step explanation:
357/17=21
A triangle with a perimeter of 30 inches has sides of x+3, 2x+5, and x. find the value of x
Answer:
x = 5.5 inches.
Step-by-step explanation:
The perimeter is the sum of the 3 sides, so:-
x + x + 3 + 2x + 5 = 30
4x + 8 = 30
4x = 22
x = 5.5.
If using the method of completing the square to solve the quadratic equation x^2-19x+9=0x
2
−19x+9=0, which number would have to be added to "complete the square"?
a circle has a radius of 4m. find the circumference of the circle show your worth and strictly answering used 3.14 for pi
Answer:
25.12
Step-by-step explanation:
Circumference (C) = 2πr
Where r = radius
We want to find the circumference of a circle with a radius of 4m ( this means that r = 4 )
To do so we simply plug in the value of r into the circumference formula
Formula: C = 2πr
r = 4 ( note that it says use 3.14 for π )
plug in values
C = 2(3.14)(4)
Simplify
C = 25.12
68. Evaluate - 2a + 6b when a = 6 and b = -3
-2a + 6b
= -2(6) + 6(-3)
= -12 + (-18)
= -30
[tex]\huge\textsf{Hey there!}[/tex]
[tex]\huge\textsf{-2a + 6b}[/tex]
[tex]\huge\textsf{= -2(6) + 6(-3)}[/tex]
[tex]\huge\textsf{= -12 + (-18)}[/tex]
[tex]\huge\textsf{= -12 - 18}[/tex]
[tex]\huge\textsf{= -30}[/tex]
[tex]\huge\textsf{Therefore, your answer is: -30}[/tex]
[tex]\huge\textsf{Good luck on your assignment \& enjoy your day! }[/tex]
~[tex]\huge\textsf{Amphitrite1040:)}[/tex]