Explain the students mistake
Answer:
The student was supposed to multiply 4(1+5n) to equal 4+20n instead she forgot to multiply 5n and put 4+5n.
Step-by-step explanation:
-8n + 4(1 + 5n) = -6n -14
-8n + 4 + 20n = -6n -14
12n+4 = -6n -14
+6n +6n
18n +4 = -14
-4 -4
18n= -18
n = - 1
6:
A concert hall has three sections: the main floor, the balcony, and the gallery. For a recent concert, 1020 tickets were sold. There were twice as many balcony tickets sold as gallery tickets, and 225 more main floor tickets than balcony tickets. If g represents the number of gallery tickets sold, which expressions represents this situation?
A
Gallery: g
Balcony: g
Main Floor: g + 225
B
Gallery: g + g + 225
Balcony: 2g
Main Floor: g
C
Gallery: g
Balcony: g + 225
Main Floor: 2g + 225
D
Gallery: g
Balcony: 2g
Main Floor: 2g + 225
Answer:
D) gallery: g
balcony: 2g
main floor: 2g + 225
Step-by-step explanation:
Photo is above need help no work needed just the answer thank you
Answer:
D is the correct answer
I’m taking an L someone help
Answer:630
Step-by-step explanation:
Answer:
gg hope that L goes goof for you
Step-by-step explanation:
69 420
We can find the roots of a quadratic function by looking at where it intercepts the x-axis. If a graph is entirely above the x-axis and never intersects it, what would you infer about the roots of the function?
Answer:
It doesn't have any roots
Step-by-step explanation:
If the parabola doesn't intersect the x-axis, then there are no solutions to the equation.
PLEASE HURRY IM IN A RUSH!!!!!!! 100 POINTS!
Which equation represents the function graphed on the coordinate plane? g(x) = |x + 1| + 3 g(x) = |x + 3| – 1 g(x) = |x – 1| + 3 g(x) = |x + 3| + 1
Answer:
If i am right it has to but has to be -11
What can we say about U?
Answer:
U=2
Step-by-step explanation:
or U is 2 points to the right of T?
Answer: u=2
Step-by-step explanation:
Or is it going by .5
Sam is fencing in his property. The length is 12 feet less than twice the width. If the total amount of fence needed is 216 feet, what is the length of the property? blank feet
Answer:
L = 68 ft
Step-by-step explanation:
To find the perimeter of something you need to add up all the sides
In this case I am assuming Sam's property is a square/rectangle
Which means the formula for the perimeter is P = 2L + 2WIf L = 2W - 12 and P = 216, we can use these values and plug them into our perimeter equation to solve for w and then solve for l
216 = 2(2W -12) + 2W → ditributing the 2 to the (2w - 12) gives us 216 = 4W - 24 + 2W → combing like terms gives us216 = 6W - 24 → adding 24 to both sides gives us 240 = 6W → dividing both sides by 6 gives us40 ft = WWith the width being solved, we can now plug that value into our length equation
L = 2(40) - 12 → distributing the 2 to the 40 gives usL = 80 - 12 → combing like terms give usL = 68 ftWould simplifying affect the inequality?
3x < 7+3
What would be the simplified form or the next step?
Answer yes or no, simplified form written
Answer:
Simplifying would not affect the inequality, because you are still saying the same thing just in a different way
Step-by-step explanation:
the next thing you would have to do would be to add 7+3 which gives you 10 and then divided 3x by 3x and 10 by 3x and badaboom there's your answer
Find two numbers A
and
B
whose sum
a
+
b
is
−
3
, and whose difference
a
−
b
is
−
7
.
Your answer is
a=
b=
Answer:
the following is the answer , a is -5, b is 2
If T=[23 -38]
[17. -6 ] then what is -10(T)
Answer:
B
Step-by-step explanation:
Multiply each term by -10
Solve the following equation for x
X^2-11x-60=0
A-x=4;x=-15
B-4;x=-15
C-x=4;x=15
D-x=-4;x=-15
Answer:
The answer is x= -4 x= 15
Step-by-step explanation:
Answer:
The answer will be B.
Step-by-step explanation:
Because when you do it like shown you will gt this
Step 1: Factor left side of equation.
(x+4)(x−15)=0
Step 2: Set factors equal to 0.
x+4=0 or x−15=0
x=−4 or x=15
Answer:
x=−4 or x=15
(05.03 MC)
Look at the figure below:
Triangles ABC and BDC have a common base BC. E is the point of intersection of BD and AC. AE equals EC and ED equals BE.
Based on the figure, which pair of triangles is congruent by the Side Angle Side Postulate? (1 point)
Triangle ABE and triangle CBE
Triangle AEB and triangle CED
Triangle BEC and triangle DEC
Triangle ABC and triangle DCE
Answer:
Triangle AEB and triangle CED2nd answer is correctStep-by-step explanation:
AE = EC (side)
BE = ED( side)
AEB angle = DEC angle( angle)
Triangle AEB and triangle CED ( SAS)
hope this helps
brainliest appreciated
good luck! have a nice day!
Answer:
B- Triangle AEB and triangle CED
Step-by-step explanation:
I took the test and it was correct
Wendy had 1/2 of her birthday cake left over, so she decided to take it to work.
She shared her cake equally amongst herself and five of her coworkers. What
fraction of the birthday cake does each person get?
Answer:
1/12
Step-by-step explanation:
1/2 divided by 6
that way her and her 5 workers each get the same amount of cake
1/12
Step-by-step explanation:
1/2/6=1/12
Felicia decided to purchase 2 points in order to lower her interest rate on her $149,000 mortgage. How much additional money does she need to bring to closing
Answer:
$2,980
Step-by-step explanation:
Mortgage points is a term used by a mortgage brokers and it is usually referred to the percentage of the loan amount.
From the given question:
Felicia decided to purchase 2 points in order to lower her interest rate on her $149,000 mortgage
the 2 points that Felicia purchased is equivalent to 2% i.e 0.02 points
Thus; the additional money she need to bring to closing is calculated by the formula:
cost = points × loan amount
= 0.02 × $149,000
= $2,980
Use long division to find the quotient below
Answer:
[tex]4x^2-2x+6[/tex]
Step-by-step explanation:
I did it on paper
[tex](8x^3+20x^2+36)/(2x+6)=4x^2-2x+6[/tex]
Please answer correctly ASAP !!!!! WILL MARK BRAINLIEST !!!!!!!!
Answer:
lool thats teams,
Step-by-step explanation:
Find the solution set of the inequality
14-3x<-1
Answer:
x > 5
Step-by-step explanation:
There are six clearly distinguishable frogs sitting in a row. Two are green, three are red, and one is blue. Green frogs refuse to sit next to the red frogs, for they are highly poisonous. In how many ways can the frogs be arranged?
Answer:
i believe it is 18
Step-by-step explanation:
green1 green2 blue red1 red2 red3
green2 green1 blue red1 red2 red3
green1 green2 blue red2 red1 red3
green2 green1 blue red2 red1 red3
green1 green2 blue red3 red2 red1
green2 green1 blue red3 red2 red1
green1 green2 blue red1 red3 red2
green2 green1 blue red1 red3 red2
red1 red2 red3 blue green1 green 2 everthing above but this way
Answer:
24
Step-by-step explanation:
Which statements are true regarding undefinable terms in geometry? Check all that apply.
Answer:
A point has no length or width.
A point indicates a location in a coordinate plane.
A plane consists of an infinite set of lines.
A line consists of an infinite set of points.
Step-by-step explanation:
True : A point has no length or width. A point in geometry is a location.
True: A point indicates a location in a coordinate plane.
False: A plane has one dimension, length. A plane has two dimensions.
False: A line has a definite beginning and end. A line goes on forever in both directions so it has infinite length.
True: A plane consists of an infinite set of lines. A plane is a flat surface extending indefinitely in all directions.
True: A line consists of an infinite set of points.A line is a connected set of infinitely many points
Given GH is tangent to ⊙T at N. If m∠ANG = 54°, what is mAB ? A circle with centre T is given. GH is tangent to the circle which touches the circumference of the circle at point N. From N, a diameter NTB is drawn. A chord AN is also given, this chord forms an acute angle with tangent. mAB = 72 °
Answer:
mAB=72°
Step-by-step explanation:
Theorem:The angle between a Tangent and a Radius is 90 degrees.
Applying the above theorem therefore:
∠ANG+∠ANB=90°
54°+∠ANB=90°
∠ANB=90°-54°
∠ANB=36°
Now, Inscribed Angle=[tex]\frac{1}{2}[/tex] of the measure of the arc
Therefore:
36°=[tex]\frac{1}{2}X[/tex] mAB
mAB=36*2=72°
The measure of arcAB is 72 degrees
Circle geometryAccording to the theorem, the angle between a Tangent and a Radius is 90 degrees.
Applying the above theorem, therefore:
∠ANG+∠ANB=90°
54°+∠ANB=90°
∠ANB=90°-54°
∠ANB=36°
Since inscribed angle = of the measure of the arc
Therefore:
36°= mAB
mAB=36*2=72°
Hence the measure of arcAB is 72 degrees
Learn more on circle geometry here: https://brainly.com/question/24375372
12 = 6(n – 7)
Solve 2 -step equation
Answer:
9 = n
Step-by-step explanation:
12 = 6(n – 7)
Divide by 6 on both sides
12/6 = 6/6(n – 7)
2 = n-7
Add 7 to each side
2+7 = n-7+7
9 = n
Answer:
9 = n
Step-by-step explanation:
12 = 6(n – 7)
12 = 6n - 42. Use the distributive property
12 = 6n - 42
+42. +42. Inverse operations
54 = 6n
÷6. ÷6
9 = n
Sally has 4 red socks, 6 white socks, and 2 pink socks in her drawer. She
randomly pulls a red sock out of the drawer. Then she randomly pulls out
another sock from a drawer.
a) What is the probability that Sally pulls out a red sock?
b) What is the probability that Sally pulls out a sock that is not red?
c) Are the events described in a) and b) complementary? Explain.
A) 1/3
B) 2/3
C) Yes because 1/3+2/3=1 but if it was 1/3 and 1/3 it would not be complementary
Try It!
Find the length of a 100-yard football field in meters. Use 1 yard = 3 feet
and 1 meter = 3.28 feet. Round to the nearest tenth.
Answer:
91.46m
Step-by-step explanation:
The length of 100 yard football field in meters.
From the dimension given,
1 yard = 3 feet
Therefore,
100 yard = x feet
1 yard = 3 feet
100 yard = x feet
X = (100 × 3) / 1
X = 300 feet.
But,
1 metre = 3.28feet
X metre = 300 feet
X = (300 × 1) / 3.28
X = 91.46m
Therefore, 100 yard football field is equal to 91.46m
Anyone knows the answer of this
Answer:
La= 5x
Lb= -8x
Answer:
Step-by-step explanation:
i hope my answer helped u
The graph shows the numbers of quarts of yellow
paint that must be mixed with different numbers of
quarts of red paint to make a certain shade of orange
paint.
Answer:
Step-by-step explanation:
The given graph is a straight line graph. The y axis represents the number of quarts of yellow paint that is mixed. The x axis represents the number of quarts of red paint that is mixed. We would write the required equation in the slope intercept form. The slope intercept form equation of a straight line is expressed as
y = mx + c
Where
m represents slope
c represents y intercept.
Slope = (y2 - y1)/(x2 - x1)
Slope = (2 - 1)/(5 - 2.5) = 1/2.5
Slope = 0.4
The straight line cuts the y axis at y = 0
It means that c = 0
Therefore, the equation is
y = 0.4x
Find the equation of a line that is parallel to y=x+3 and passes through the point (-2,-4)
Answer:
y = x - 2
Step-by-step explanation:
y + 4 = 1 (x + 2)
y + 4 = x + 2
y = x - 2
Someone help me please?!
Answer:
13
Step-by-step explanation:
Mark me as brainliest
1) - 3 = -11
2) 4 (g – 1) = 24
3) = 0
4) - 40 = 12x + 8
5) - 2p – 3 = -19
6) 13 =
7) - 9 = - 11 +
8) Challenge!!
2q + 10 = 7q
9) d + = -
10) 5 - u =
11) - m - = - 10
12) = + 9q
13) 2 = +
14) c - = c
15) ( w - ) =
16) + 5 = 2
17) - p + = - 3p
18) - 2 n - = - 1
Answer:
1. −3≠−11 (false)
2. g=7
4. x=−4
5. p=8
7. + 2
8. q = 2
10. =−u+5
16. 5≠2 (false) or
'-3' because -3 + 5 = 2
sorry not sure how to do the others :(
PLEASE ANSWER ASAP!! GOOD 20 POINTS
Answer:
43
Step-by-step explanation:
Let's plug in 105 for v. We get 105 = 30[tex]\sqrt[3]{t}[/tex].
3.5 = [tex]\sqrt[3]{t}[/tex]
t = 43 seconds