Answer:
Crystal's mistake was that she distributed the 5 only to the 4, not to the 7 as well.
The correct step should have been 5(4 + 7) = 5⋅4 + 5⋅7.
Using the distributive property correctly would give the sum of the two products, 20 + 35. The value of 5(4 + 7) is 55.
The value of 5(4 + 7) is 55.
It is required to find the correct answer.
What is simplification?Simplification means simplifying processes involved in work towards consistency of efforts, costs and time. It eliminates useless and disadvantageous (or unnecessary) diversity and variety.
Given that:
By the Distributive Property
If a, b, c are real numbers, then
a*(b+c)=a*b+a*c
Crystal's did mistake was that she distributed the 5 only to the 4, not to the 5 to 7 as well.
First distribute and then multiply, we get
The correct step should have been
= 5(4 + 7)
= 5⋅4 + 5⋅7.
= 20 + 35.
= 55
Therefore, the value of 5(4 + 7) is 55.
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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
Answer:
4.5^7
Step-by-step explanation:
What is the length of a rounded to the nearest tenth
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.
I CANT HELP :(
Step-by-step explanation:
:(
Molly bought 4.25 pounds of fish for $10.20. What is her unit rate (cost per pound)?
Answer:
$2.40 per pound
Step-by-step explanation:
Take the cost and divide by the pounds
$10.20/ 4.25 pounds
$2.40 per pound
Answer: The answer is 2.4
To find out the cost per pound, you just have to divide. For example, in this problem, you would divide 10.20 by 4.25 to see how much money it is for one pound of fish
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
35x100 hours = $3500+$65= $3565 for 100 hours of work and materials.
answer is b
my sister just had this question
What the answer to PTR?
Answer:
∠ PTR = 140°
Step-by-step explanation:
∠ PTQ and ∠ RTS are vertical and congruent, thus
2x + 16 = x + 28 ( subtract x from both sides )
x + 16 = 28 ( subtract 16 from both sides
x = 12
Thus ∠PTQ = x + 28 = 12 + 28 = 40°
∠ PTQ and ∠ PTR are adjacent and supplementary, thus
∠ PTR = 180° - 40° = 140°
Simplify the expression.Explain each step.(0+a)+8
Answer:
a + 8
Step-by-step explanation:
add 0 and a
a = 1
That's it! i hope you have a great day
1/3(2x-57)+1/3(6-x)=-4
Solve for x
answer:
x=39
I hope this helps:)
if investment double every 7 years and you start with 600$ investment how much money would you have after 21 years
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 slope of the line?
y У
2
-2
1
1
1
2
1
The slope of this line is 2
-5x + 18 = 3x - 38
show steps please need this asap
Answer:
x = 7.
Step-by-step explanation:
-5x + 18 = 3x - 38
18 + 38 = 3x + 5x
56 = 8x
x = 7.
what is 10^4 divided by 10^19 =?
Answer:
1e-16
Step-by-step explanation:
(10^4)/(10^19) =
(10*10*10*10)/(10^19)=
(1,000)/(10^19) =
1,000/(10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10*10)=
1,000/(10,000,000,000,000,000,000) =
1,000/10,000,000,000,000,000,000 =
1e-16
i need the answer to this asap
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!
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.
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
The first to answer gets brainlest
The correct answer is A.
Hope that helps you!!
Which relationship is a function?
Answer:
An input cannot have 2 outputs.
Answer is top left and bottom right.
Step-by-step explanation:
A bacteriologist estimates that there are 5.2×10^4 bacteria growing in each of 20 petri dishes. About how many bacteria in total are growing in the petri dishes? Express your answer in scientific notation
Answer:
1X10^6
or
1.04x10^6
Step-by-step explanation:
You start by multiplying 5.2x10^4 by 20 because there are 20 petri dishes with this amount growing, and you get 1,040,000. Now we need to convert it to scientific notation. We know that 1,000,000 is 10^6, so we would move the decimal to the left 6 places and get 1.04x10^6. This is in scientific notation, but we need to keep in mind significant figures (sig figs), so your final answer would be 1x10^6, if that is not what your instructor is looking for, try 1.04x10^6.
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.
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
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What is x + y? please answer asap
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!!!!
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.
Answer:
ूेऐेुेुलौयकौइकौलएेःरःरइौईौकौथटइिौइिौइोौकइेईौकेञौञे
\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
[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!?
HELP!! WHAT IS THE SURFACE AREA OF THIS?
Answer:
94 when you add up all of the sides.
Step-by-step explanation:
Answer:
Step-by-step explanation:
There are 4 rectangles and 2 triangles on the surface of this solid.
Area = 2 * 5*5 + 5*6 + 2 * 1/2 * 6*4
= 50 + 30 + 24= 104 yd^2.
PLEASE HELP!!!
The black graph is the graph of
y = f(x).
Choose the equation for the red graph.
Answer:
D. Y/2 = f(x)
Step-by-step explanation:
is pip a horizontal symmetry
what is the equation of the line that passes through the point (-4,2) and has a slope of -5/4
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
Question in photo! (Please help with other questions!)
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
The sphere has a radius of 12 inches. Find the volume.
Answer:
7238.23
Step-by-step explanation:
A car travels 180 miles in 4 hours. Calculate the average speed of the car in mph.
Answer:
45 mph
Step-by-step explanation:
180 / 4= 45
What is the value of expression below if u=-5 and y=40
Answer:
what expression
Step-by-step explanation:
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?
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