Answer:
The answer is 5q + 9.
Step-by-step explanation:
1) Collect like terms.
[tex]5q + (22 - 13)[/tex]
2) Simplify.
[tex]5q + 9[/tex]
hence, the answer is 5q + 9.
Marco is turning the expression (x-4)^2 into a trinomial. He writes down what is shown below. What is his error?
Answer:
Step-by-step explanation:
first, let's solve the equation ourselves.
(x-4)^2= (x-4)(x-4)= x^2−8x+16
now, we can see what's different about the two.
we can say that Marco's answer had the number 16 as a negative, when it was supposed to be positive. Marco wrote the incorrect sign.
The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution. 1271 1187 1194 1250 1268 1316 1275 1317 1275 (a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to the nearest whole number.)
Answer:
The sample mean year is 1261 A.D.
The standard standard deviation is of 46 A.D.
Step-by-step explanation:
Sample mean:
Sum of all values divided by the number of values. So
[tex]x = \frac{1271+1187+1194+1250+1268+1316+1275+1317+1275}{9} = 1261.4[/tex]
Rounding to the nearest whole number, the sample mean year is 1261 A.D.
Sample standard deviation:
Square root of the sum of the difference squared between each value and the mean, divided by one less than the sample size. So
[tex]s = \sqrt{\frac{(1271-1261.4)^2+(1187-1261.4)^2+(1194-1261.4)^2+(1250-1261.4)^2+(1268-1261.4)^2+(1316-1261.4)^2+(1275-1261.4)^2+(1317-1261.4)^2+(1275-1261.4)^2}{8}} = 45.8[/tex]
Rounding to the nearest whole number, the standard standard deviation year is of 46 A.D.
5) True or False: Absolute Value can never be negative * O True False
Answer:
True
Step-by-step explanation:
Absolute value tells the distance a number is from 0.
[tex]|7|=7[/tex] because 7 is 7 units away from 0.
[tex]|-13|=13[/tex] because -13 is 13 units away from 0.
[tex]|0|=0[/tex] because 0 is 0 units away from 0
Absolute value always produces a number greater than or equal to 0, never negative.
QUESTION 2
The equation for this problem is what? The business has 23 employees that work 8 hours per day at $10.62 per hour.
Answer:
10/8+10.62
23*8*10.62
10.62*8+23
23+8*10.62
Step-by-step explanation:
Either one of these, I hope this helps:)
Answer please and explain
Answer:
78
Step-by-step explanation:
Formula is already provided
2pir
2×3×13
One school bus can hold 46 students. There are 29 students in each of the 5 fifth-grade classes. How many buses will they need in order to transport everyone to the zoo for a field trip?
Answer:
4
Step-by-step explanation:
29x5=145
= 145 (divided) 46= 3.15...
4 buses
What happens when you add two numbers that are opposites?
Example:
[tex] - 33 + - 37[/tex]
Is Michael correct? Will choose brainly
Is the first one correct and what are the ages? Thanks
Answer:
a = 30°
Step-by-step explanation:
We need to find the value of a.
We know that, a straight line makes an angle of 180°.
In this case,
a+3a+2a = 180
6a = 180
a = 30°
So, the value of a is equal to 30°.
Find the value of x.
PLEASE HELP
How many different 5-letter words can be made
a. if the first letter must be A or Y and no letter may be repeated?
b. if repeats are allowed (but the first letter is A or Y)?
c. How many of the 5-letter words (starting with A or Y) with no repeats end
in H?
9 ≥ 3b can someone help me out please?
Answer: b≤3
Step-by-step explanation:
Answer:
3 ≥ b
Step-by-step explanation:
You need to work this out like an algebraic equation
So think of it like this...
9 = 3b
9/3 = 3b/3
3=b
Add the symbol back into the equation
And you get: 3 ≥ b
Can a polygon have four sides and three angles
No a polygon only has 3 sides and 3 angles.
write an equation for the nth term of the arithmetic sequence. Then find a40.
6,-1,-8,-15,....
Answer:
The next sequence will be -22 because they are subtracting 7
help out brainliest.
I can't read the question.
What is the quotient? 2y2-6y-20/4y+12
Answer:
last 4rd
Step-by-step explanation:
FSA Mathematics Practice Test Questions
Session 1
2.
What fraction is represented by point A on the number line shown?
Please answer or give the steps to answer please please please this is my state test and i can’t fail
Answer:
1. 466.3ft
2. 12.1m
Step-by-step explanation:
1.
Imagine this as a triangle like shown in pic attached, then use tan to find 'x', the distance between the base of the tower and the fire:
tanA=opposite/adjacent
tan25=x/1000
x=100tan25
x=466.3ft
2.
Imagine this as a triangle like shown in pic attached, then use sine to find 'x', the kite's vertical height above the boy's hand:
sinA=opposite/hypotenuse
sin12=x/50
x=50sin12
x=10.4m
The kite's height off the ground is this plus the height of the boy's hand from the ground: 10.4+1.7=12.1m
What is the solution to
−12x≤−72
5 = w + 1.5
whats the answer
Answer:
w = 3.5
Step-by-step explanation:
5 = w + 1.5
5- 1.5 = 3.5
quick mathz
Cory has $24 more than twice as much as Stan. Together they have $150. How much money dose each have ?
Answer:
99 and 51
Step-by-step explanation:
Type the correct answer in the box. The area of the figure is square units.
Answer:
26 units squared
Step-by-step explanation:
multiply
5x2=10
5x2=10
3x2=6
add them together and you get
26
Answer:
26
Step-by-step explanation:
Madison is preparing rice for 10 dinner guests. Each guest
eats Ģ of a cup of rice.
How many cups of rice does Madison need?
Answer:
door Sai so Lally shall icb kiddo do you have any questions
Step-by-step explanation:
ok CV bjf
Which of the following is a non-rigid transformation?
Answer:
c
Step-by-step explanation:
Answer:
B: Dilation
Step-by-step explanation:
Translations, rotations, and reflections are all rigid transformations because the image isn't altered. This makes a dilation a non-rigid transformation because the image is getting larger or smaller.
I need help quickly. Please help.
Answer:
Mean:
= (4 + 6 + 9 + 11 + 8 + 13 + 12) / 7
= 63 / 7
= 9 (The sum of the numbers divided by the number of numbers)
Median:
= 4, 6, 8, 9, 11, 12, 13
= 9 (The middle number of a list from least to greatest)
Mode:
= NONE (The number that appears the most in a given list)
Solve for x
A) 2
B) -10
C) 7
D) -3
Answer:
-10
Step-by-step explanation:
corresponding angles.
hope the image attached helps
thank you
Which electrician would be cheaper to hire for 3 hours? 8 hours? Why
Electrician A charges $35 per hour and a $100 consultation fee.
Electrician B charges $40 per hour and a $70 consultation fee.
Answer:
3 hour: electrician B because you would save $15
8 hour: electrician A because you would save $10
Step-by-step explanation:
35×3+100=205 vs 40×3+70=190
b is 15 dollars less
35×8+100=380 vs 40×3+70=390
a is 10 dollars less
hellooo everyone !!! I'm an Indian !!!! Nice to meet y'all
Answer:
hi I am a Egyptian Saudi nice to meet you too
Step-by-step explanation:
Help Pls
Its a math question, see attachments
Answer:
1) A) 25%
2) B) 16%
3) A) 93%
Step-by-step explanation:
1)
0.25 = 25%
2)
More than 3 means, 4 and 5
0.12 + 0.04 = 0.16 = 16%
3)
x ≥ 1
So that means 1+ days (everything except 0)
0.25 + 0.18 + 0.34 + 0.12 + 0.04
0.93 = 93%
Helpppppppppppppppppppppppp
Answer:
[tex]x = 15[/tex]165+x = 180 (linear pair)
Hence x = 15