If a = 2 and b= -1, the expression 3ab2 is equal
to
(1) 6
(2) 12
(3) 36
(4) -12
can someone help me ill mark you brainliest
Answer:
Equation: x+x+6=20
x=7
Andy completed 16 problems
Step-by-step explanation:
Patty counted 250 chocolate chips on a tray of cookies. The actual amount of chocolate chips on the tray were 265. What is the percent error? *
Answer:
percent error=6%
Step-by-step explanation:
Step one:
given data
Patty counted 250
The actual amount of chocolate chips on the tray were 265
Required
The percent error
Step two:
The formula is
percent error= actual-expected/expected*100
percent error= 265-250/250*100
percent error=15/250*100
percent error=0.06*100
percent error=6%
Which decimal is equivalent to
NI
OA) 0.416
B) 0.416
C) 0.416
OD) 0.416
Answer:
b
Step-by-step explanation:
6 is repeating
fillerfillerfilller
Two hundred twelve adults and one hundred eighty children attended a county fair one night. If the adult admission price was $7.50 and the children's admission was $3.00, how much money was paid for admissions?
2. Which of the following is the solution of the system of equations shown? A. (−3, −4) B. (–3, 4) C. (3, 4) D. (3, –4). Please show an explanation
Find the measure of 2BDC:
B
22°
D
689
78°
112°
158°
Answer:
angle ADC is shown as a 90 degree angle
90 - 22 = 68
so I would go with 68 degrees
Solve.
-2 1/3 - (-5) = ?
Answer:
8/3
Step-by-step explanation:
If the x-axis is the perpendicular bisector of a segment with an endpoint of (2,3) what are the coordinates of the other endpoint of this segment?
Answer:
(2, -3)
Step-by-step explanation:
The x-axis is the perpendicular bisector of a segment with an endpoint of (2,3).
A perpendicular bisector is a line which is perpendicular to a segment, dividing the segment into two equal parts. The perpendicular bisector passes through the midpoint of the segment.
Since the x axis bisects a segment with an endpoint of (2,3) perpendicularly, hence a point on the x axis is the midpoint of the segment. The midpoint would have the same x coordinate as the endpoint.
Hence, the midpoint is (2, 0).
Let (x, y) be the other endpoint, then:
(2, 0) is the midpoint of the segment joining (2, 3) and (x, y). we find the value of x and y using:
(2 + x) / 2 = 2; and (3 + y) / 2 = 0
2 + x = 4; and 3 + y = 0
x = 4 - 2 ; and y = 0 - 3
x = 2; and y = -3
Hence the other endpoint is at (2, -3)
Because the x-axis is the perpendicular bisector of a segment with an endpoint of (2, 3), we will see that the other endpoint must be at (2, -3).
How to find the other endpoint?First, we know that the x-axis is perpendicular to our segment, so our segment must be a vertical segment. This means that there can't be a variation in the x-values between the endpoints.
So, if one endpoint is (2, 3), then the other must be (2, y).
To find the value of y we use the fact that the x-axis is also a bisector, so it divides the segment in two equal parts, then we must have y = -3
In this way, we can conclude that the other endpoint is (2, -3)
If you want to learn more about segments, you can read:
https://brainly.com/question/14366932
An account earns simple interest.
$1500 at 4% for 5 years
a. Find the interest earned.
b. Find the balance of the account.
help
Answer:
1500/100 x 4 = 60
60 X 5 = 300
interest earned $ 300
total balance $1800
Evaluate the expression using the values m = 7, r = 8, and t = 2.
3m - 5t
Answer:
11
Step-by-step explanation:
1. fill in the variables
3(7)- 5(2)
2. Multiply
21- 10
3. Subtract
21-10=11
Easy question.. pls anwser
Answer:
Its B: -18
Step-by-step explanation:
- - makes a +
-57+37=-18
Answer: it’s B
hope this helps
(GIVING BRAINLIEST!!)
There is 1/3 of a pie shared equally between 5 children. How much of the pie does each child receive?
A)1/9 pie
B) 1/15 pie
C) 1/18 pie
D) 1/20 pie
Answer:
B) [tex]\displaystyle \frac{1}{15}[/tex]
Step-by-step explanation:
Shared eqyally signals division:
[tex]\displaystyle \frac{1}{3} \div 5 = \frac{\frac{1}{5}}{3} = \frac{1}{5} \times \frac{1}{3} = \frac{1}{15} \\ \\ OR \\ \\ \frac{1}{3} \div 5 = \frac{1}{3} \times \frac{1}{5} = \frac{1}{15}[/tex]
I am joyous to assist you at any time.
Jessica is measuring two line segments. The first line segment is 300 cm long. The second line segment is 500 cm long. Find the total length of both the line segments.
Answer:
The total length of both the line segments is 800 cm long.
Step-by-step explanation:
How do you solve -2+x=-x+2
Answer:
x=2
Step-by-step explanation:
-2 + x = -x + 2
Isolate the variable
2x = 4
Simplify
x = 2
Answer:
x = 2
Step-by-step explanation:
you want to move the variables to one side, the numbers to the other side.
x = -x+4
then you move the other x
2x = 4
x = 2
The amount of flour that the bakery used this month was a 40% increase relative to last month. The bakery used 75 pounds of flour last month. How much
flour did the bakery use this month?
Answer: 11%
Step-by-step explanation:
so, I’m not going anywhere else to go to the store and I’ll let you know if you need anything or do I need to get something for dinner lol you know what I’m going through and I can’t even imagine what you mean by that time and you have have to do that for you too but I’m just trying to get you to do that that I don’t want to do with that and that I’m going to be a pain and I’m sorry I don’t want you to think that you have been in the hospital and you have no desire for me to come in this week I don’t think I can do anything with your dad and you are just not being mean and I can’t even talk to you and I’m not going through all that I know I don’t know what to do but you are not going through all this nonsense I know that I know what I want you do not need me but you know me I love that I don’t know if I will ever do that anymore but you are not even in my mind for a while but you are not so much and I’m sorry I just want to make sure that I have no idea that I’m going to have to be a friend of my best relationshi.
Using the figure above, what are the measures of the 3 angles in triangle DEF? PLS HURRY! THANKS
Answer:
F= 34 degrees (alternate angles are equal)
To find D
we first have to find the angles at AB
B =180- 165 (sum of angles on a straight line = 180°)
therefore B = 15°(we'll use this to find the angle at E)
A=34 (from the diagram)
so,
D = 180- (15 + 34) [sum of angles in a triangle = 180°]
D = 131°
E=15° (alternate angles are equal )
Step-by-step explanation:
there u go!
pls do it fast
in the given figure AB=10.2cm, AC=14cm, AD=DC and AD perpendicular to BC. calculate area of triangle ABC.
Answer:
solution :
in the given figure AB=10.2cm, AC=14cm, AD=DC and AD perpendicular to BC.
now ,
in rt angle tirangle ADC,
angleACD=45 degree, angle DAC=45 degree now,
in triangle ABD,
angle BAD+angleABD+angleADB=180 DEGREE (sum of the sngle of triangle)
angle BAD+75+30=180
angle BAD=180-165 therefore,angle BAD=15
angle BAC =15+45=60
Area of triangle ABC=1/2×AB×AC×SIN 60
=1/2×10.2×14×√3/2
=61.83cm³ ans
HELP ME! thank youu!
Answer:
y=51(Alternate interior angles)
z=40(Alternalte interior angles)
x=89(Sum of angles in a triangle)
PLEASE HELP AND FAST PLEASEEEEE will mark brainliest if right
Answer the questions on the picture please
Step-by-step explanation:
no pic available Hun xx try posting again
next guestion why does math even exist!!!!
Answer:
B.
Step-by-step explanation:
I know this because I asked my Math teacher.
1/2 of the people who live in the neighborhood vollunteer at the comunity garden. 1/4 of the vollunteers are teenagers. What fraction of the vollunteers are teenagers
Answer:
3/4
Step-by-step explanation:
With regards to the above, since 1/4 of the volunteers are teenagers, the fraction of the volunteers would be
= 1 - 1/4
= 3/4
It therefore means that 3/4 of the volunteers are teenagers.
PLEASE URGENT (quadratic formula with step by step) 35 points!
Answer: 1.828 HOPEFULLY ITS RIGHT.
Step-by-step explanation:
A jar contains 15 red marbles, 10 green marbles, and 11 blue marbles. What is the probability that a marble chosen at random from the jar will NOT be green?
Answer:
Quantity A is greater.
Step-by-step explanation:
Note that there are 16 total marbles. A is simply a set of sequential events. On the first, you have 10/16 chances to draw a red. Supposing this red is not replaced, the chance of drawing a second red will be 9/15; therefore, the probability of A is (10/16) * (9/15) = 0.375. Event B is translated into 2 events: Blue + (White or Red) or (White or Red) + Blue. The probabilities of each of these events, added together would be (2/16) * (14/15) + (14/16) * (2/15) = 0.2333333333; therefore, A is more probable.
4 times the sum of 34 and 8
Answer: 168
Step-by-step explanation:
Answer:
168
Step-by-step explanation:
34+8=42
42x4=168
y = x + 2
-3x + 3y = 6
Can someone please help me with this
Answer:
x=9
x=0
x=-14
x=27
x=12
Step-by-step explanation:
Please help me write an equation for this problem
Answer:
[tex] an \: equation \: for \: this \: problem \:i s \: \to : \\ \boxed{ 7200 = 12t}[/tex]
Step-by-step explanation:
[tex]let \: the \: distance \: be \to \: d \\ \\ let \: the \: speed \: rate \: be \to \: s \\ \\ let \: the \: time \: of \: action \: be \to \: t \\ therefore \to: \\ s = \frac{d}{t} = 12 = \frac{7200}{t} \\ \\ 7200 = 12t \\ [/tex]
can someone help with functions stats and trig test ? it’s urgent i need to pass
Answer:
ya i can
Step-by-step explanation:
Help me with this pls
Answer:
D 10x=150
Step-by-step explanation:
They are the same degree so they must equal eachother
Answer:
10x=150(Vertically Opposite Angle)