Answers
Answer: B. a + (-b) = 7
Step-by-step explanation:
The answer is B. a + (-b) = 7. a + (-b) is the same thing with a - b.
A. a + b = -7
a - b = 7 means the differences of a and b is 7, choice A is talking about their sum, so it could not be true.
C. -a - b = 7
if you multiply -1 on both sides, you will get a + b = -7. Therefore, it will not be true.
D. b - a = 7
a - b = 7 means that a is 7 more than b. The choice d shows the opposite, which it states that b is 7 more than a. Therefore, it is not true.
Related Questions
$34.97 is what percent of $86.08?
Round your answer to the nearest whole number and include a percent sign (%).
Answers
Simplify the expression.Explain each step.(0+a)+8
Answers
Answer:
a + 8
Step-by-step explanation:
add 0 and a
a = 1
That's it! i hope you have a great day
The value of a stock increases 14 2/3 points twice in one week. The other three days the value decreases by 10 points, 8 1/3 points, and 12 2/3 points. By how many points did the value of the stock change that week?
A. 23 points
B. 13 points
C. −1 1/3 points
D. −1 2/3 points
Answers
(2) x (14 2/3) - (10) - (8 1/3) - (12 2/3) = -(1 2/3) (D)
The value of the stock change that week is -1 2/3.
What is Fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
The value of a stock increases 14 2/3 points twice in one week.
and, The other three days the value decreases by 10 points, 8 1/3 points, and 12 2/3 points.
So, the point in that week
= 2 x 14 2/3 - 10 - 8 1/3 - 12 2/3
= 2 x 44/3 - 10 - 25/3 - 38/3
= 88/3 - 10 - 63/3
= 88/3 - 10 - 21
= 88/3 - 31
= 88- 93/ 3
= - 5/3
= - 1 2/3
Learn more about fraction here:
https://brainly.com/question/10354322
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Hector is building a metal sculpture in the shape of an equilateral triangle. After he divides a metal bar into 3 equal pieces, Hector figures each side of the triangular sculpture can be at most 9 feet long.
Answers
Answer:
27
Step-by-step explanation:
because 3*9=27 so that it
The inequality equation is 3L ≤ 27 or L ≤ 9 feet , where L is the length
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Let the length of the equilateral triangle be L
And , each of the lengths of the triangle is at most 9 feet long means that each of the lengths is less than or equal to 9 feet
So , L ≤ 9 feet
And , the perimeter of an equilateral triangle is the addition of the three equal lengths
So , 3L ≤ 27 feet
Therefore , the value of A is 3L ≤ 27 feet
Hence , the inequality equation is 3L ≤ 27 feet
To learn more about inequality equations click :
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is pip a horizontal symmetry
Answers
T-shirts cost $12 each and masks cost $8 each. If a is the number of t-shirts bought and b is the number of masks bought, then the cost for 'a' shirts and 'b' masks is 12a +86.
Answers
Answer:
ूेऐेुेुलौयकौइकौलएेःरःरइौईौकौथटइिौइिौइोौकइेईौकेञौञे
1/3(2x-57)+1/3(6-x)=-4
Solve for x
Answers
answer:
x=39
I hope this helps:)
write the following expression in exponential form 4.5 x 4.5 x 4.5 x 4.5 x 4.5 x 4.5 x 4.5
PLS HELPPPPPPP
Answers
Answer:
4.5^7
Step-by-step explanation:
What is the length of a rounded to the nearest tenth
Answers
b= 6.52703644
c= 10
Twice the sum of a number x and 9 is equal to 12 less than the number x. What is the value of x?
Answers
Answer:
x = -30
Step-by-step explanation:
Let x be the number.
2(x + 9) = x - 12
Use distributive property of multiplication
2x + 18 = x - 12
Simplify by combining like terms
2x - x = -12 - 18
x = -30
The sphere has a radius of 12 inches. Find the volume.
Answers
Answer:
7238.23
Step-by-step explanation:
Question in photo! (Please help with other questions!)
Answers
Answer:
c) [tex]a_{n}[/tex] = 3.5n + 7.5
Step-by-step explanation: =>
Given :-
a = 11
d = 3.5
To Find :
[tex]a_{n}[/tex]
Solving :-
= a + (n - 1)d
= 11 + 3.5n - 3.5
= 3.5n + 7.5
Solution :-
c) [tex]a_{n}[/tex] = 3.5n + 7.5
\lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. \leq \\ x^{2} \sqrt{x} \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \sqrt[n]{x} \neq \lim_{n \to \infty} a_n
if you can solve this ill make you brainliest
Answers
[tex]\lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. \leq \\ x^{2} \sqrt{x} \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \sqrt[n]{x} \neq \lim_{n \to \infty} a_n[/tex]
Tough you can't solve it!?
Which relationship is a function?
Answers
Answer:
An input cannot have 2 outputs.
Answer is top left and bottom right.
Step-by-step explanation:
hope it helps.
What is x + y? please answer asap
Answers
Answer:
Step-by-step explanation:An x-y axis, also known as a cartesian coordinate system or a coordinate plane, is a two-dimensional plane of points defined uniquely by a pair of coordinates.
Hope this helped!!!!
What is the value of expression below if u=-5 and y=40
Answers
Answer:
what expression
Step-by-step explanation:
GEOMETRY
Which of the following statements is NOT a property of parallelograms?
All 4 angles are congruent.
Opposite angles are congruent.
Opposite sides are congruent
Parallelograms have 4 straight sides.
Answers
Step-by-step explanation:
Parallelogram is a quadrilateral s.t. opposite sides are parallel.
1. 4 angles DON'T necessarily have to be congruent
2. True
3. Opp. sides DON'T necessarily have to be congruent
4. True
SO first and third statements are NOT property of parallelogram
PLEASE HELP FAST!!
Gilbert earns $7.50 per hour washing cars.
Graph the relationship between the number of hours Gilbert works and the total amount of money he earns.
Answers
I CANT HELP :(
Step-by-step explanation:
:(
-5x + 18 = 3x - 38
show steps please need this asap
Answers
Answer:
x = 7.
Step-by-step explanation:
-5x + 18 = 3x - 38
18 + 38 = 3x + 5x
56 = 8x
x = 7.
Which of the following is the graph of 6x – 4y ≤ 20
Answers
Answer:
It should be something like that :
There are 3,542 books of the same thickness
and weight in a room. The room has 321 shelves.
If the books are split evenly among the shelves,
how many books will be on each shelf, and how
many will be left over?
Answers
Answer:
there will be 11 books on each shelf and 11 left over.
Step-by-step explanation:
3542/321
which is:
11 and 11/321
For each of the bookcases a woodworker is building, she
charges $65 for materials. She also charges $35 for each
hour she works to build the bookcases. How much does
the woodworker charge for working 100 hours to build 18
bookcases?
A$4,735
B$3,565
C$3,583
D $4,670
Answers
35x100 hours = $3500+$65= $3565 for 100 hours of work and materials.
answer is b
my sister just had this question
What is the slope of the line?
y У
2
-2
1
1
1
2
1
Answers
The slope of this line is 2
12. The charges for an international
Phone Company
Charges
call made using the calling card
for two phone companies are
Company A 350 plus 30 per minute
shown in the table.
Company B 450 plus 20 per minute
a. What is the length of a phone call that would cost the same no matter
which company is used?
10 minutes
b. Analyze Relationships When is it better to use the card from
Company B?
Answers
Answer:
when you have longer than 10 minute phone calls
Step-by-step explanation:
after 10 minutes each plan is 650
plan A + 1 more minute = 680
plan B + 1 more minute = 670
so after 10 minutes plan b costs less
Answer:
10 min long is the answer
if investment double every 7 years and you start with 600$ investment how much money would you have after 21 years
Answers
Answer:
$29,400
Step-by-step explanation:
21 years divided by 7 years = 3, which means we can separate this into 3 categories
$600 for 7 years is 4200
$1200 for 7 years is 8400
$2400 for 7 years is 16800
add the answers together
4200 + 8400 + 16800 = 29400
What is the name of the step in the water cycle labeled C?
wwwww
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Precipitation
ООО
B. Hydration
C. Transpiration
D. Evaporation
Answers
Water cycle involves all processes in which water circulates
The water cycle labeled C is precipitation
How to determine the water cycle labeled step C
From the figure, we can see that the step C represents water falling down from the sky to the earth surface.
This can represent rain, sleet, or snow.
Any of the above forms represent precipitation
Hence, the water cycle labeled C is precipitation
Read more about water cycle at:
https://brainly.com/question/8305337
i need the answer to this asap
Answers
Answer:
John's ball hit the court first
Step-by-step explanation:
to solve for who hit the court first we have to look for when x was 0
John's ball hit the court in 1 second
now to look for the other guy we substitute 0 to the equation
0 = (-16t - 2) (t - 2)
we cannot substitute 0 to t because its looking for when it hit the court. x is 0 because it hits the ground
soo i guess we distribute ?
or actually we equate both to 0 i think
-16t - 2 = 0 t - 2 = 0
-16t = 2. t = 2
t = 2/-16
t = 1/-8 t = 2
theres two answers but 1/-8 is wrong because theres no such thing as the ball going underground (LOL) so his ball hit the court two seconds later
John's ball hit the court first i think
im not sure how to do the rest, but i do know how to do the first. Sorry but hope this helps you a little!
A car travels 180 miles in 4 hours. Calculate the average speed of the car in mph.
Answers
Answer:
45 mph
Step-by-step explanation:
180 / 4= 45
PLEASE HELP!!!
The black graph is the graph of
y = f(x).
Choose the equation for the red graph.
Answers
Answer:
D. Y/2 = f(x)
Step-by-step explanation:
what is the equation of the line that passes through the point (-4,2) and has a slope of -5/4
Answers
Answer:
The answer is
[tex] \huge y = - \frac{5}{4} x - 3[/tex]
Step-by-step explanation:
To find an equation of a line given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
where
m is the slope
( x1 , y1) is the point
From the question the point is (-4,2) and slope of -5/4
We have
[tex]y - 2 = - \frac{5}{4} (x + 4) \\ y - 2 = - \frac{5}{4} x - 5 \\ y = - \frac{5}{4} x - 5 + 2[/tex]
We have the final answer as
[tex]y = - \frac{5}{4} x - 3 \\ [/tex]
Hope this helps you