Answer:
140
Step-by-step explanation:
Luis's math teacher plots student grades on their weekly quizzes against the number
of hours they say they study on the pair of coordinate axes and then draws the line of
best fit. What is the meaning of the x-value on the line when y = 75?
Answer:
In the graph, we have a linear fit of the student's grades as a function of the number of hours they say that they study.
Then the y-axis represents the grade, and the x-axis represents the number of hours of study, and because this is a linear fit, we will have something like:
y = a*x +b
If we input a value of x here (number of hours studied) we would get the expected grade for the weekly quiz y.
In this situation, the meaning of the x-value on the line when y = 75 would be the (adjusted) number of hours studied to get a grade of 75.
So this x-value is the average number of hours that a student needs to study to get a grade of 75 points.
Daniel drew a toy from a treasure chest containing 30 different toys. He selected a bouncy ball without replacement and then selected a key chain. What is the probability this could occur
Answer:
[tex]Pr = \frac{1}{870}[/tex]
Step-by-step explanation:
Given
[tex]n =30[/tex]
Required
Probability of selecting 2 toys of different types
From the question, we understand that all toys are different i.e. 1 of each type.
And the selection is without replacement;
So, after the first toy is selected; there are n - 1 toys left.
So, the probability is:
[tex]Pr = \frac{1}{n} * \frac{1}{n - 1}[/tex]
Substitute [tex]n =30[/tex]
[tex]Pr = \frac{1}{30} * \frac{1}{30- 1}[/tex]
[tex]Pr = \frac{1}{30} * \frac{1}{29}[/tex]
[tex]Pr = \frac{1}{30*29}[/tex]
[tex]Pr = \frac{1}{870}[/tex]
how to do compound and simple interest
Answer:
We can compute simple interest by finding the interest rate percentage of the amount borrowed, then multiply by the number of years interest is earned. Another type of interest calculates interest on both the money initialy deposited as well as the interest money earned, and is called compound interest.
Step-by-step explanation:
hope this helps
please help me thanked
Answer:
3. 49
4. 101
Step-by-step explanation:
3) 180-51-63
= 66
180 - 66 = 44
4) 180 - 86-45 = 49
180 - 49 - 30 =101
8. Which of the following cannot be written as an expression? *
F. six times a number less nine
G. eight times the quotient of 6 and 3
H. the difference between a number and 12
J. five times a number is 30
Answer:
f
Step-by-step explanation:
because it's less than mine not less nine
A boy starts at A and walks 3km east to B,he they walks 4km north to C,find the distance and bearing of C
Answer:
The answer is "5 km".
Step-by-step explanation:
The right triangle will best represent this distance model. Its legs AB and BC and the hypotenuse AC. Through plugs through into Pythagorean theorem the known values,
[tex]\to a^2 + b^2 = c^2\\\\\to 3^2 + 4^2 = c^2\\\\ \to 9 + 16 = c^2\\\\ \to 25= c^2 \\\\\to c=5[/tex]
Which equation results from adding the equations in this system?
-2x+y = 8
5x-y=-5
O 7x=13
O 7x=3
O 3x=3
3x= 13
Answer: 3x=3
Step-by-step explanation: Let's divide this into parts--
1. Adding the x variables: -2x+5x or 5x-2x = 3x.
2. Adding the y variables: y-y or -y+y = 0. (The negative and the positive y cancel each other out.)
3. Adding the numbers: 8-5 or -5+8 = 3.
Now just put it back into an equation: 3x + 0 = 3.
We don't need to add the 0, so the equation changes into 3x = 3.
Please help its due in 15 min hurry 100 points
Answer:
yes
Step-by-step explanation:
I hope that we pass this semester god bless :)) calming it
Answer:
me too
Step-by-step explanation:
Identify the like terms in the expression 7x+4y+3y+7
a 7x and 7
b 4y and 3y
c 7
d 7, 4, 3
Please help me with 1,2,3,4 and show me how you get it the answers
Answer:
Step-by-step explanation:
Use the formula of distance between the two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex],
Distance = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
1. Distance between A(3, 4) and B(8, 12),
AB = [tex]\sqrt{(8-3)^2+(12-4)^2}[/tex]
AB = [tex]\sqrt{25+64}[/tex]
= [tex]\sqrt{89}[/tex]
≈ 9.43
2. Distance between C(-2, 10) and D(3, -2),
CD = [tex]\sqrt{(3+2)^2+(-2-10)^2}[/tex]
= [tex]\sqrt{25+144}[/tex]
= [tex]\sqrt{169}[/tex]
= 13.00
3. Distance between X(20, 4) and Y(17, 0),
XY = [tex]\sqrt{(20-17)^2+(4-0)^2}[/tex]
= [tex]\sqrt{3^2+4^2}[/tex]
= [tex]\sqrt{25}[/tex]
= 5.00
4. Distance between E(2, -1) and M(6, 9),
EM = [tex]\sqrt{(2-6)^2+(-1-9)^2}[/tex]
= [tex]\sqrt{16+100}[/tex]
= [tex]\sqrt{116}[/tex]
= 10.77
How many solutions are in the graph
Answer:
Infinetly Many Solutions
Step-by-step explanation:
Because the arrows show the the answers are never ending.
5 more than a number x is 9 HELP RN
Answer:
4
Step-by-step explanation:
Pls help I’m so confused
Answer:
im confused too man
Step-by-step explanation:
Solve the following equations for x :
g = c - x
Answer:
[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]
[tex]g = c - x \\ c - x = g \\ - x = g - c \\ x = - g - c[/tex]
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]
HELP ME PRE-CALC PROBLEM DUE TONIGHT!!! THANK YOU!! Use the tables below to find the given limits (if one of them is DNE - does not exist - explain why).
Answer:
2.) 6
3.) 13
4.) 8
5.) DNE (because limit from the right does not equal limit from the left)
Step-by-step explanation:
Evaluate the arithmetic series described
1+3+5+ 7. S8
116
58
128
Answer:
64
Step-by-step explanation:
1=3+5+7....S8 and ..... is 64
Which equation represents the relationship between x and y in the table?
A. y=x+2
B. y = 2x + 1
C. y = 2x² - 4x + 5
D. y=x2-x+3
E. y = 2x – 1
HELPPP (I'M TALKING THE MATH MAPS TEST-)
Find the missing side or angle.
Round to the nearest tenth.
B=45°
a=9
c=19
b=[ ]
Answer:
[tex]14.1[/tex]
Step-by-step explanation:
Since we have two sides of a triangle and the angle between them, we can use the Law of Cosines.
For any triangle, the Law of Cosines states:
[tex]b^2=a^2+c^2-2ac\cos B[/tex], where [tex]a[/tex], [tex]b[/tex], and [tex]c[/tex] are all interchangeable.
Substituting given values, we have:
[tex]b^2=9^2+19^2-2(9)(19)\cos 45^{\circ},\\b^2=200.169480834,\\b\approx \boxed{14.1}[/tex]
The deli gets 1212 -pound blocks of cheese. They slice the cheese into \frac{1}{4} 4 1 - pound and \frac{1}{2} 2 1 - pound packages to sell to customers. How many \frac{1}{2} 2 1 - pound packages of cheese can the deli make with 1212 pounds of cheese?
Answer:
24
Step-by-step explanation:
Based on the question given :
Total pounds of cheese = 12
These cheese are sliced into 1/4 pounds and 1/2 pounds packages.
What the question requests is the number of 1/2 pounds fraction we can get from the total 12 pounds of cheese.
This means we aren't cutting out 1/4 pounds fraction from this package as the question didn't specify.
Hence, the number of 1/2 pounds fraction obtainable from 12 pounds of cheese I s:
We divide the 12 pounds cheese by 1/2
This gives :
12 ÷ 1/2 ; 12 / 1/2
÷ change to multiplication ond the reciprocal of the denominator is used
12 * 2 /1 = 24 /1
We Obtain 24 1/2-pound cheese
Mikail Rasmussen purchase 2 gallons of ice cream $4.99 each 2 bags of popcorn for $1.88 each 3 pounds of strawberries $1.98 per pound for packs of sliced cheese at 2 for $4.00 and 3 cartons of orange juice at 2 for $5.00 he had a coupon for $10.00 of a his purchase total $25.00.
Answer:
Step-by-step explanation:
There are 13 red roses 6 pink roses and 16 white roses in patricks garden what percentage are pink roses
Answer:
17.1429% ?
Step-by-step explanation:
Write the algebraic expression for ‘x plus five is twenty three’
Answer:
x + 5 = 23
Step-by-step explanation:
Just write it like how you say it.
The algebraic expression for the given phrase is x+5=23.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given phrase is "x plus five is twenty three"
Here, the equation is x+5=23
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Transpose 5 to the RHS of the equation, we get
x=23-5
x=18
Therefore, the x value is 18.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ3
Can someone please help me to solve 5/6 only I will mark you the brainly pls I need help please please
Answer:
5. h = 12
6. k = 17, m = 12
Step-by-step explanation:
5. The sum of angles on the adjacent side of a diagonal of a parallelogram is 180 degree
[tex]3h + 24 = 4 h + 12\\h = 12[/tex]
6. The angle is 90 degrees
[tex]5k + 5 = 90\\k = 17\\7m + 6 = 90\\m = 12[/tex]
Consider the graph of the polynomial function p(x)=(x-1)(x+2)(x+5) is the graph increasing or decreasing to the left? is the graph increasing or decreasing to the right?
Answer:
It's decreasing to the left and increasing to the right
Step-by-step explanation:
A town's population is currently 1,550. If the population doubles every 37 years, what will the
population be 74 years from now?
8. Rename the quadratic function f(x) = -2(x + 4)2 - 5 in standard form. A. f(x) = -2x2 + 16x - 37 G. f(x) = -2x2 – 16x + 27 B. f(x) = -2x2 + 16x + 27 D, f(x) = -2x2 – 16x - 37
Answer:
see explanation
Step-by-step explanation:
f(x)= -2(x²+8x+16)-5
[tex] -2 {x}^{2} - 16x - 32 - 5 \\ f(x)= - 2 {x}^{2} - 16x - 37[/tex]
2+v=11
What value of v is a solution to this equation
Answer:
9
Step-by-step explanation:
subtract 2 on both sides
you get v=9
11. The temperature in Kingstown was 8.1°C at 5:00 p.m. By 11:00 p.m., the temperature
had dropped by 14.8°C. Which is the best estimate of the temperature in Kingstown at
11:00 p.m.?
A. -23°0
B. -7°c
C -6°
D. 0°C
Answer:
B) -7°c
Step-by-step explanation:
It costs $100 to rent the bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expression 100 + 4n. The cost for 15 people equals $ ___. (Input whole number only.) Numerical Answers Expected!
Answer:
$160
Step-by-step explanation:
100+4n ; n=15
100+ 4(15)= 160
$160 for 15 people