1. Which graph models the equation y = 3.5x?
2. Determine the equation of the line given by the graph.
A)y = 3x + 2(Wrong, I'm retaking the test)
B)y = 3x − 2
C)y = 1/3x + 2
D)y = 1/3x − 2
3.Determine the equation of the line given by the graph.
A)y = 2/3x - 1
B)y = 3/2x - 1
C)y = -2/3x - 1(Wrong, retaking)
D)y = -3/2x - 1
4.Determine the equation of the line given by the graph.
A)y = 5/3x - 4
B)y = 3/5x - 4
C)y = -5/3x + 4
D)y = -3/5x + 4
Answers
2) the y-intercept is -2 and the slope is up 3 over 1, so the answer has to be B
3) the answer is A because the up 2 over 3
4) the y-intercept is a positive 4, and the slope is going down 3 and to the right 5, and the line is decreasing so you know it has to be negative. the answer is D
Related Questions
Please need some help on this
Answers
What do you do if there are no matching coefficients
Answers
When dealing with null coefficient terms in mathematics or chemistry, they can be a tool to simplify calculations. Replacing zero coefficients with a positive approximation or selecting rows with zeroes in matrices can ease the process. Always verify solutions by substituting them back into the original equations to ensure correctness.
When you encounter situations where there are no matching coefficients in your algebraic equations, it is important to look for null coefficient terms. Such terms can help simplify the computations. For instance, if you are working on balancing chemical equations or solving systems of equations, and one of the coefficients is zero, this can be advantageous because multiplying by zero is a straight-forward operation.
If a coefficient equals zero, like one in a characteristic equation, replace it with a positive quantity approaching zero from the right-hand side. Continue with the analysis after this adjustment. Additionally, when working with matrices, selecting a row with zeros as the coefficient row can simplify the process of expansion by minors since some minors will not need to be computed and can just be multiplied by the zero coefficient.
In the case of balancing equations in chemistry or optimizing coefficients in a mathematical model, practice and a methodical approach are necessary. Make sure to double-check your computations and if you are unsure about the correctness of your solution, substitute it back into the original equation.
Help please !!
What is the length of VW?
A) 16 units
B) \sqrt{x} 13
C)20 units
D) \sqrt{x} 20
Answers
________________________________________________________
Explanation:
________________________________________________________
Note the Pythagorean theorem for right triangles:
→ a² + b² = c² ;
Solve for the "positive value of "c" ;
in which "c" is the "hypotenuse" ; which is the length of VW ;
_______________________________________
in which one side of a right triangle is from:
_______________________________________
"Point W" {coordinate of "(-4, -2)" to "(-2, -2)" ; which is "2 units" long;
_______________________________________
and another side of the right triangle is from:
_______________________________________
"(-2, -2)" to "(2, 2)" ; which is: "4 units long)
c² = 2² + 4² ;
Solve for the "positive value" of "c" ; which is the "hypotenuse" ; which is the length of VW .
_______________________________________________________
c² = 4 + 16 = 20 ;
c² = 20 ;
Take the "positive square root" of each side of the equation; to solve for "c" ;
⁺√(c²) = ⁺√20;
to get:
→ c = √4√5 = " 2√5 units " ;
or; using calculator: " √20 = 4.4721359549995794 " ;
→ round to: "4.47 units" .
_______________________________________________________
what are the coordinates of r(180°,O)(-4,1)
Answers
plz give awnser 50 points
questions 5 and 9
Answers
A bicycle wheel has a diameter 60inches how many rotations would it take to go 600 feet
Answers
600 feet (12 inches/ft) = 7200 inches
We know that the diameter is 60 inches, so the circumference is 60π inches or 188.5 inches.
We can divide 7200/188.5 to get about 38.2 rotations.
In Kendra’s class, 40 percent of the students earned an A on the math test. Twenty students earned an A. Kendra needs to find out how many students are in her class. Kendra’s work is shown below.
40 / 2 = 20
_________
100 x 2 = 200
what mistake did kendra make? (the / is meant as a division symbol)
A. Kendra should have multiplied by 4 in both the numerator and the denominator.
B. Kendra should have divided by 2 instead of multiplying by 2 in the denominator.
C. Kendra should have added 40 and 20.
D. Kendra should have the part to whole equation written as 100/40 (100 over 40)
Answers
Answer:
B. Kendra should have divided by 2 instead of multiplying by 2 in the denominator.
Step-by-step explanation:
In Kendra’s class, 40 percent of the students earned an A on the math test.
Let the total students in the class be = x
So, as per the situation given, we can say that
[tex]0.40\times x=20[/tex]
x = 50
Hence, there are 50 students in the class.
We can cross check this as:
[tex]0.4\times50=20[/tex]
So, Kendra surely did a mistake.
Kendra should have divided 100 by 2. But she multiplied by 2.
Solve the following equation (6p+8)(5p-8)
Answers
A family has 8 girls and 4 boys. A total of 3 children must be chosen to speak on behalf of the family at a local benefit. What is the probability that no girls and 3 boys will be chosen?
Answers
Final answer:
The probability that no girls and 3 boys will be chosen is 1/55 or approximately 1.82%.
Explanation:
To find the probability that no girls and 3 boys will be chosen, we need to determine the total number of possible outcomes and the number of favorable outcomes.
There are a total of 12 children (8 girls + 4 boys) in the family. Since 3 children are being chosen, the total number of possible outcomes is the combination of 12 children taken 3 at a time, which is denoted as C(12, 3) = 220.
The number of favorable outcomes is choosing 3 boys from the 4 available boys, which is denoted as C(4, 3) = 4.
Therefore, the probability of choosing no girls and 3 boys is 4/220 = 1/55, which can be reduced to approximately 0.0182 or 1.82%.
Emma can sign up for two after-school activities. She can choose soccer, softball, or dancing, and she can choose drama, band, or drawing.
Which table shows all of her possible options?
Answers
What is the length of segment AB? A coordinate plane is shown. Point A is located at 6, 2, and point B is located at 0, 10. The points are connected by a line segment. 5 units 6 units 8 units 10 units
Answers
d = sqrt((x1-x2)^2 + (y1-y2)^2)
d = sqrt((6-0)^2 + (2-10)^2)
d = sqrt(6^2 + (-8)^2)
d = sqrt(36+64)
d = sqrt(100)
d = 10
The distance between point A and point B is 10 units
The line segment AB is 10 units long
List all of the ways that a square can be correctly classified (or named) and Explain why each of the different names is also correct. one point will be given for each classification and explanation
Answers
A square is a parallelogram because it is a quadrilateral whose opposite sides are congruent (and parallel).
A square is a rhombus because it is a quadrilateral that has four congruent sides.
A square is a quadrilateral because it has four sides.
A square is a convex polygon because it is a closed figure with all interior angle measures less than 180.
What is the simplified form of square root 64x^16?
8x^4
8x^8
32x^4
32x^8
Answers
Answer:[tex]8x^{8}[/tex]
Step-by-step explanation:
When multiplying two numbers with exponents you adding the exponents
[tex](x^{m} )(x^{n} )=x^{m+n}[/tex]
[tex]\sqrt{64x^{16} }[/tex] = [tex]\sqrt{64x^{8+8} }[/tex] = [tex]\sqrt{8(8)(x^{8}) (x^{8} )}[/tex] =8[tex]x^{8}[/tex]
the perimeter of triangle rxa is 24. if rx= 4 and ra= 11, find xp and pa
Answers
PA = 6.6 units
XP = 2.4 units
Explanation:
1- We are given that:
perimeter of RXA = 24 units
RX = 4
RA = 11
This means that:
XA = 24 - 4 - 11 = 9 units
2- For XA:
XA = XP + PA
XA = 9 units
This means that :
XP + PA = 9 units
XP = 9 - PA
3- Triangle angle bisector theorem:
"In a triangle, the angle bisector divides the opposite side into two segments that are proportional to the other two sides"
Applying this to the given triangle, we can set the ratio as follows:
[tex] \frac{XP}{PA} = \frac{XR}{AR} [/tex]
We have:
XP = 9 - PA
RX = 4
RA = 11
4- Substitute with the givens in the above ratio and solve for PA as follows:
[tex] \frac{9-PA}{PA} = \frac{4}{11} [/tex]
11(9-PA) = 4(PA)
99 - 11PA = 4PA
99 = 15PA
PA = 99/15
PA = 6.6 units
5- Substitute to get XP as follows:
XP = 9 - PA
XP = 9 - 6.6
XP = 2.4 units
Hope this helps :)
Evaluate the expression.
12(43−6⋅32)
Answers
Answer:
the answer is 5.
Step-by-step explanation:
The expression 12(43−6⋅32) evaluates to -132 by following the order of operations, first calculating the exponent, then the multiplication and subtraction inside the parentheses, and finally multiplying the result by 12.
To evaluate the given expression 12(43−6⋅32), we need to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction).
First, solve the exponent 32 which is 9.
Then, perform the multiplication within the parentheses: 6⋅9 equals 54.
Now, subtract that result from 43: 43 - 54 which gives us -11.
Finally, multiply the result by 12: 12 ⋅ (-11) equals -132.
Therefore, the expression 12(43−6⋅32) evaluates to -132.
What is the value of X 56•
Answers
WORK:
56° x 2 = 112
180 - 112 = 68°
Answer:
B) 68
Step-by-step explanation:
56*2=112
180-112=68.
you want to determine if two triangle are similar. what is the minimum number of angles you need to measure to determine if the triangles are similar
Answers
Because we know the sum of all 3 angles in a triangle must equal 180 degrees, if we find 2 of them on two different triangles, the third angle would be the same on both if the other two are the same. This would mean they are similar.
To know if 2 triangles are similar, we would need at least 2 angles, why?
Since a triangle has 3 angles, and those angles add up to 180°, we can easily determine the third angle.
Example: If 2 angles of a triangle were 13 and 97, we would know that 13 + 97 = 110, then 180° - 110° = 70°, so the missing angle is worth 70°.
Hope this helped! c:
Pls answer the question fasttt
Answers
Answer : 1 : 5
5 ÷ 5 = 1
25 ÷ 5 = 5
Reducing to simplest form:
5 : 25 = 1 : 5 I'm sorry if I'm wrong but I hope that I'm right
Solve for x.
7
12
21
4
Answers
x² + 196 = 340
x² = 144
x = 12
The second option is your answer.
a^2 + b^2 = c^2
or
a^2 = c^2 - b^2
in this case:
x^2 = (2√85)^2 - 14^2
x^2 = 340 - 196
x^2 = 144
x = 12
In parallelogram ABCD, ∠A and ∠B are adjacent. The measure of ∠B is twice the measure of ∠A. Which equation gives the exact measure of ∠A?
A. m ∠A + m ∠B = 180°
B.m ∠A + 2 • m ∠A = 180°
C.m ∠A + m ∠B = 90
D.m ∠A + 2 • m ∠A = 90°
Answers
Shelley purchased a home in Maryland Heights, MO, for $204,000. Her down payment was 20% of the cash price, and she obtained a mortgage for 20 years at 7%. What's Shelley's monthly payment?
Answers
where
[tex]P[/tex] is the payment
[tex]PV[/tex] is the present debt
[tex]r[/tex] is the interest rate in decimal form
[tex]n[/tex] is the number of payments per year
[tex]t[/tex] is the time in years
Since she paid 20% of the value of the home, [tex]PV=204000-(240000)20[/tex]%=163200
Now, to convert the interest rate to decimal form, we are going to divide the rate by 100% [tex]r= \frac{7}{100} =0.07[/tex]. Since we are finding Shelly's monthly payment and a year has twelve months, [tex]n=12[/tex]. We also know that [tex]t=20[/tex], so lets replace those values in our formula:
[tex]P= \frac{ \frac{r}{n}(PV)}{1-(1+ \frac{r}{n})^{-nt} } [/tex]
[tex]P= \frac{ \frac{0.07}{12}(163200)}{1-(1+ \frac{0.07}{12})^{-(12)(20)} } [/tex]
[tex]P=1265.29[/tex]
We can conclude that Shelly's monthly payment is $1265.29
(Photo) Please help me
What's the probability of getting a number less than 5 and a head when rolling a die and then tossing a coin?
Answers
Hope this is right !! :)
0.25,4/5,2/9,0.48 how many cards are greater than 1/2
Answers
1/2 = 0.5
0.25 = 0.25
4/5 = 0.8 ✔
2/9 = 0.222
0.48 = 0.48
8/11 = 0.72 ✔
There are 2 numbers greater than 0.5 or 1/2.
Answer: 8/11 and 4/5
Hope this helped☺☺
Chelsea uses 3 pounds of apples to make 4 cups. How many pounds of apple does she need to make 6 pints of applesauce
Answers
Here, we know that 1 pint = 2 cups
Thus, 1 cup = [tex] \frac{1 pints}{2} [/tex]
3 ponds apples are needed for 4 cups i.e. 3 ponds of apples = 4 cups of applesauce
1 cup of applesauce = [tex] \frac{3 ponds}{4} [/tex]
Now, 6 pints will have 12 cups of applesauce
Multiplying this equation by 12 ⇒ 1 cup of applesauce = [tex] \frac{3 ponds}{4} [/tex]
12 ×1 cup of applesauce = 12 × [tex] \frac{3 ponds}{4} [/tex]
So, 12 cups of applesauce = 9 ponds of apple.
Thus, 9 ponds of apple will be needed to make 6 pints of applesauce.
PLZZ HELP!!!!
What is the surface area of the right rectangular prism?
Enter your answer in the box.
Answers
a baseball team has 12 players and the coach wants to pick which five players will start today's game how many combinations are there to the coach to choose from
Answers
720 is your answer.
What is 5√ ?
Place a dot on the number line at the best approximation.
Answers
The answer is as attached.
The required √5 on the number line is shown in the image attached.
What is a number line?A number line is defined as the number marked on the line calibrated into an equal number of units. For example -1, 0, 1, and so on.
Here
To locate √5 on a number line, we can begin by locating the integers that √5 lies between. We know that 2² = 4 and 3² = 9, so √5 must be between 2 and 3.
To get a more accurate estimate, we can divide the distance between 2 and 3 into 10 equal parts (tenths). Each tenth represents 0.1 units on the number line. We know that 0.5 is halfway between 0 and 1, so √5 must be a little more than halfway between 2 and 3.
By estimating the position of √5 on the number line, we can approximate it as being around 2.2 to 2.3.
Thus, the required √5 is shown in the image attached.
Learn more about number line here:
brainly.com/question/17683084
#SPJ3
Fruit is being handed out at a picnic. The basket contains 5 bananas, 3 oranges and 2 apples. If two pieces of fruit are handed out one after the other, which combination would have a probability of 2/9
Answers
Apples are 2/9, so:
The combination for apples would have a probability of 2/9
The difference between eight times a number and three is equal to negative nineteen. What is the number?
A.2
B.-2
C.-3
D.3
Answers
Eight times a number
8 * -2 = -16
The difference between eight times -2 and 3
- 16 - 3 = -19
50% of babies are born female. olive wants to find probability that 20 or more of the 50 babies born today were female.we need to design a simulations .which random device device can we use to best represent this situation
Answers
For example, she could flip a coin. Or she could roll a die, using the even numbers for girls and odd numbers for boys.
Answer:
Use a double-sided coin and assign heads as females and tails as males.
Step-by-step explanation:
I did the I-Ready lesson.