Step-by-step explanation:
a) (t – 2)(t – 2)
(t-2)²
t²-2×t×2+2²
t²-4t+4
b). (3y – 2z) (3y + 2z)
(3y)²-(2z)²
9y²-4z²
c) 105 × 98
10,290
pl help me will this plz
Answer:
B. 14.8
Step-by-step explanation:
In order to find the average, you need to find the mean.
So you add up all the students: [tex]19+13+19+9+14+15=89[/tex]. Then you divide that number by the number of classes she has: [tex]89/6= 14.8333333...[/tex]Finally, you round to the nearest tenth place: 14.8.
Plz help me with a, b, c, and d
Thx
Answer:
a) 2
b) 38
c) –2
d) – 38
I hope I helped you^_^
Find 20％of 30％of 180
Answer:
10.8
Step-by-step explanation:
30％of 180
30/100 = 180
(180x30)/100
5400/100
54
20％ of 54
20/100 = 54
(54x20)/100
1080/100
10.8
Accuracy is how _______ a measurement is to the expected value'
Answer:
Accuracy is how close a measured value is to an accepted value. Precision is how close measurements are to one another. To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.
The Piersons have paid $75 to enroll their son Fred at preschool. They will pay $152 a month in fees. Write and solve an equation to work out how many months it will take for the total bill to reach $683.
Answer: 4 months
Step-by-step explanation:
$75 + $152X = 683
That's the equation you need to set up, with X being the number of months.
To solve, first subtract 75 from both sides.
$152x = 608
Then, divide each side by 152
X = 4
The answer is 4 months.
what is the equation of the line parallel to y=1/2x+1 that contains the point (-2,1)
Answer:
y = 1/2x + 2Step-by-step explanation:
The line parallel to the given has the same slope:
y = 1/2x + bUse the given point to find the y-intercept:
1 = 1/2(-2) + b1 = -1 + bb = 1 + 1b = 2The line is:
y = 1/2x + 2it’s number 5
thank you
Step-by-step explanation:
Let the number be x, then
one forth of the number
=
[tex] \frac{x}{4} [/tex]
Solve the following using elimination method
(a) 3x + 2y = 29, 5x - y = 5
(b) 5m + 2n = 3, m - 4n = -6
(c) 7p + 39 = 8, 3p - 49 = 14
(d) 4k - 3h = 25, 6k + 5h = 9
Answer:
the answer of a is 8x+10y
do this by DMAS formula
find the measure of the angle and name the angle pair
1.) x+69 and x+121
2.) 8x+2 and 9x-9
solve for x and name the angle pair
3.) 115* and x+125
4.) 120* and x+127
5.) x+106 and 103*
6.) 11x+6 and 50*
7.) 11x+3 and 10+10x
8.) x+105 and 100*
9.) -7+17x and 16x
10.) 18x+2 and 19x-4
Answer:
write in the correct form please!
Which Expression is equal to 632?
A. 2⁴(3 x 5³ + 2²)
B. 2³(3 x 5² + 2²)
C. 2³ (3 x 5² + 2⁵)
D. 2⁴(3 x 5⁵ + 2¹⁶)
Plz help meee!
Answer:
B. 2³(3 x 5² + 2²)
Step-by-step explanation:
2³(3 x 5² + 2²)
Step 1. Simplify the exponents
8(3 x 25 + 4)
Step 2. Multiply 3 and 25
8(75 + 4)
Step 3. Add 75 and 4
8(79)
Step 4. Multiply
632
Answer:
Option B. 2³(3 x 5² + 2²) is correct
Step-by-step explanation:
2³(3 x 5² + 2²)
First of all multiply the exponents
8×(3×25+4)
Then do the multiplication of 3 and 25
8×(75+4)
Now add the following numbers in the bracket
8×(79)
And the last multiply the following numbers
8×79
632
[Hence, the expression 2³(3 x 5² + 2²) is equal to 632. ]
Find the least common multiple (LCM) of 15 and 6.
What is the common difference of the sequence 8, 4, 0, -4, -16?
[tex]\large \mathfrak{Solution : }[/tex]
Common difference of an Arithmetic progression can be found out by subtracting the preceding term from that given term.
i.e
[tex]common \: \: difference = 4 - 8[/tex][tex]common \: \: difference = - 4[/tex]therefore, the common difference of the above Arithmetic progression is -4 .
The ratio of the number of adults to the number of students on a field trip has to be 2:11. Last year there was 504 more students on a field trip. If the school is expecting the same attendance this year, how many adults have to attend the field trip?
Answer:
112 adults
Step-by-step explanation:
2x+504=11x
11x-2x=504
9x=504
x=56
The ratio is 2:11 so we multiply 56 by 2 and 11. The 2 represents the Adults and the 11 represents the students.
56*2=112 adults
56*11 = 616 students
Just to double check if you do 616-112 it is exactly 504, Therefore the amount of adults is 112.
Have a great day!
Find the equation of this line. y= [?]x+[?]
Answer:
[tex]y=3x-4[/tex]
Step-by-step explanation:
Hi there!
Slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when x=0)
1) Determine the slope (m)
[tex]m=\displaystyle\frac{y_2-y_1}{x_2-x_1}[/tex] where two points that fall on the line are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]
On the graph, two points are highlighted for us: (0,-4) and (2,2). Plug these into the formula:
[tex]m=\displaystyle\frac{2-(-4)}{2-0}\\\\m=\displaystyle\frac{2+4}{2}\\\\m=\displaystyle\frac{6}{2}\\\\m=3[/tex]
Therefore, the slope of the line is 3. Plug this into [tex]y=mx+b[/tex]:
[tex]y=3x+b[/tex]
2) Determine the y-intercept (b)
[tex]y=3x+b[/tex]
Recall that the y-intercept occurs when x=0. Given the point (0,-4), the y-intercept is therefore -4. Plug this into [tex]y=3x+b[/tex]:
[tex]y=3x+(-4)\\y=3x-4[/tex]
I hope this helps!
Help please ASAP! I chose C but I don't know if it's right or not.
Answer: You have the correct answer. It's choice C.
=========================================================
Work Shown:
[tex]3n^2+5 = -46\\\\3n^2 = -46-5\\\\3n^2 = -51\\\\n^2 = -51/3\\\\n^2 = -17\\\\n = \pm\sqrt{-17}\\\\n = \sqrt{-17} \ \text{ or } \ n = -\sqrt{-17}\\\\n = \sqrt{-1*17} \ \text{ or } \ n = -\sqrt{-1*17}\\\\n = \sqrt{-1}*\sqrt{17} \ \text{ or } \ n = -\sqrt{-1}*\sqrt{17}\\\\n = i\sqrt{17} \ \text{ or } \ n = -i\sqrt{17}\\\\[/tex]
where [tex]i= \sqrt{-1}[/tex] is the imaginary number.
The quadratic formula is another option you could do and you should get the same answers as above.
Answer:
C is the correct answer hope it helps
Can someone tell me the answers to these 3 questions plzzz
Answer:
1:23 2:346 3:837
Step-by-step explanation:
it's the right answer
Find the sizes of unknown angles
answer
z=50
x=50
y=50
a=130
If A=12251π cm², find c
Answer:
C as in?
If you expand on the question and make it clear, I can help you!
- If x = 12, then 2x - 5 = 19.
Converse:
Is the converse true?
Biconditional:
Answer:
yes
Step-by-step explanation:
the converse is Right
Find the quotient of
5
1
2
and
3
1
3
Give your answer as a mixed number in its simplest form.
Answer:
1 [tex]\frac{127}{200}[/tex]
Step-by-step explanation:
512/313
= 1.635
Leave 1 and convert 0.635 to fraction
[tex]\frac{635}{100}[/tex] into simplest form
= [tex]\frac{127}{200}[/tex]
= in mixed fraction
1 [tex]\frac{127}{200}[/tex]
When 512 is divided by 313 using repeated subtraction, the quotient is 1. The answer in mixed form is [tex]1\frac{199}{313}[/tex].
What is repeated subtraction?Repeated Subtraction is a method that subtracts the equal number of items from a group, also known as division. Using this method, the same number is subtracted repeatedly from another larger number until the remainder is zero, or smaller than the number being subtracted.
Dividend = 512
Divisor = 313
Subtract 313 from 512 repeatedly.
512 - 313 = 199
Here, 313 is subtracted once from 512 with remainder as 199.
Hence, the quotient = 1, remainder = 199.
Answer in mixed fraction:
[tex]\frac{Dividend}{Divisor} =Quotient \frac{Remainder}{Divisor} = 1\frac{199}{313}[/tex]
Learn more about repeated subtraction here
https://brainly.com/question/190780
#SPJ2
someone please help 20 points if you get it right and help ASAP
i’ll even give brainlest
[tex]\\ \sf\longmapsto 7(10-2^3)+8\div 2[/tex]
[tex]\\ \sf\longmapsto 7(10-8)+8\div 2[/tex]
[tex]\\ \sf\longmapsto 7(2)+8\div2[/tex]
[tex]\\ \sf\longmapsto 14+8\div 2[/tex]
[tex]\\ \sf\longmapsto 22\div 2[/tex]
[tex]\\ \sf\longmapsto 11[/tex]
Collect data by conducting a survey that has observations or measurements.
My Topic:
My Question:
My Data Collection Method:
How I Plan to Collect My Data:
How I Plan to Record My Data:
Collect and record your data in this space.
What does the V-shape of the graph tell you about the dive? What information does it not tell you?
The coordinate (5, - 8) means the diver is 8 feets below sea level after 5 seconds
The average speed of the diver is 1.78 ft/s
(x, y)
X axis = time = 5 seconds
Y axis = Depth = - 8 feets (negative value = below sea level)
The coordinate (5, - 8) : This gives information about the time with respect to position(depth) of the diver. At the coordinate point (5, - 8) it shows that the diver is at a depth of - 8 after 6 seconds
Recall the formular for speed :
Average speed in water = Total distance in water/ total timetaken
Total distance on water = (0 to - 8) + (-8 to 0) = 16 feets
Total time taken = 9 seconds.
Average speed = 16 ft / 9 seconds = 1.78 ft/s
Learn more : https://brainly.com/question/1378025
Write the equation of the line in fully simplified slope-intercept form.
Can someone help me with this problem?
I need help with #41 and #42 ASAP please help me.. please show step by step I need to get it done soon because It is due
Answer:
Step-by-step explanation:
41)
[tex]1+2+3+4+...+n=\dfrac{(n+1)*n}{2} \\\\2+4+6+...+2n=2*(1+2+3+4+...+n)=2*\dfrac{(n+1)*n}{2} =(n+1)*n\\\\[/tex]
42)
the square of the sum of the first n natural integers equals the sum of the cubes of these
What is the Vertex of (3,-3)
Step-by-step explanation:
6x^ 2 - y^2 = 18
glad to help
solve the problem
x/4 = 12/6
Answer:
Solution,
x/4 = 12/6
or, x/4 = 2
or, x =2×4
or, x = 8
.:. x = 8
Which equation can be solved for x in the following diagram?
Answer:
D
Step-by-step explanation:
opposite angles are equal
If LM=22 and MN=15,find LN
Answer:
37
Step-by-step explanation:
LMN is one big line
LM=22
LM=15
LN=22+15=37
Answer:
LN = LM + MN = 37
Step-by-step explanation:
L————————-M———————-N
22. 15
L————————-37———————-N
