Answer:
The change in x = Δx = -1
Step-by-step explanation:
Given the ordered pairs
(6, -3)(5, 1)Here,
x₁ = 6x₂ = 5y₁ = -3y₂ = 1Change in x can be calculated by subtracting the value of x₁ = 6 from x₂ = 5.
Change in x = Δx = x₂ - x₁ = 5 - 6 = -1
Thus, the change in x = Δx = -1
Boris bought 3 CDs that were each the same price. Including sales tax, he paid a total of $37.20. Each CD had a tax of $1.30. What was the price of each CD before tax?
Answer:
11.10
Step-by-step explanation:
37.20 - 3(1.30) = 33.3
33.3/3 = 11.1
what is two cubed and then divided by 4?
Answer:
2
Step-by-step explanation:
2 cubed is 8, then divided by 4 is 2
⁷Write decimal equivalent two hundred and thirty-four hundredths?
Answer:
200.34
Step-by-step explanation:
Need help with hw due in less than a hr!
The difference between two numbers is 8. Twice the number is 4 more than the larger number. What is the smaller number?
Answer:
If the two numbers are x and y, then:
x + y = 8
18 - 2x = 4y - 2.
When we subtract y from both sides in our first equation we get:
x = 8 - y, so:
18 - 2(8 - y) = 4y - 2
18 - 16 + 2y = 4y - 2
2 + 2y = 4y - 2
2y = 4
y = 2
Since x + y = 8, and y = 2, x = 6, and since 6 > 2, the larger number is 6.
If a tree casts a 45-foot shadow at the same time that a 6-foot tall man casts a 7.5-foot shadow, find the height of the tree.
1 ft
36 ft
45 ft
56.25 ft
Answer:
36 feet
Step-by-step explanation:
I believe this is the answer
X= -11, y=11 pls help if you can thank you
Answer:
here
Step-by-step explanation:
x= - 11 and y =11
Answer:
11:)
Step-by-step explanation:
HELP ME ON THIS. 10 POINTS
Answer:
This is sooo easy
Step-by-step explanation:
The answer is B
because It does not go through the Origin
every time they ask if something is proportional
ALWAYS check if its a straight line or if it go through the origin
hope I helped sorry If you get it wrong
Perform the operation. (-9x^2-2x)-(-9x^2-3x)
Answer:
(-9x^2-2x)-(-9x^2-3x)
Step-by-step explanation:
-9x^2 + 9x^2 - 2x + 3x
= 0x^2 + 1x
= 1x
Mark me as brainliest
Hope this helps!!!
In ΔHIJ, h = 40 cm, ∠J=20° and ∠H=93°. Find the length of j, to the nearest centimeter.
Given:
In ΔHIJ, h = 40 cm, ∠J=20° and ∠H=93°.
To find:
The length of j, to the nearest centimeter.
Solution:
According to Law of sine,
[tex]\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}[/tex]
In ΔHIJ, using law of sine, we get
[tex]\dfrac{j}{\sin J}=\dfrac{h}{\sin H}[/tex]
[tex]\dfrac{j}{\sin (20^\circ)}=\dfrac{40}{\sin (93^\circ)}}[/tex]
[tex]j=\dfrac{40\times \sin (20^\circ)}{\sin (93^\circ)}}[/tex]
On further simplification, we get
[tex]j=\dfrac{40\times 0.34202}{0.99863}[/tex]
[tex]j=\dfrac{13.6808}{0.99863}[/tex]
[tex]j=13.69958[/tex]
Approximate the value to the nearest centimeter.
[tex]j\approx 14[/tex]
Therefore, the length of j is 14 cm.
NEED HELP FAST AS POSSIBLE PLZ NEED TO TURN IN NOW
Answer:
Quick Answer it is A
Step-by-step explanation:
You have developed an angle bisector.
That means that JKM = LKM
B: is incorrect. The 1/2 should go on the angle on the left, not the one where it is
C: is incorrect. 1/2 of the given angle cannot be the same as the bisected angle.
D: is wrong. A bisected angle can't be twice as big as the given angle before it is bisected.
If the data analyst hypothesizes that grocery sales are lower on Sunday than on other days, the null hypothesis would likely state that:
Answer:
The answer is "Grocery sales are lower or no different on Sunday than on other days"
Step-by-step explanation:
Its null hypothesis does not always consider any discrepancy between both the comparable qualities throughout facts and figures. Furthermore, researchers recommend also have lower or even no opposite transactions for Sunday than with other days, because there is no connection between grocery sales and Saturdays and Sundays.
A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who receive free or reduced-price school lunches. A state-wide survey indicates that the proportion is 0.50. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.1?
Answer:
The sample size is [tex]n =68[/tex]
Step-by-step explanation:
The population proportion is [tex]\^ p = 0.50[/tex]
The margin of error is [tex]E = 0.1[/tex]
From the question we are told the confidence level is 90% , hence the level of significance is
[tex]\alpha = (100 - 90 ) \%[/tex]
=> [tex]\alpha = 0.10[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.645 [/tex]
Generally the sample size is mathematically represented as
[tex]n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p ) [/tex]
=> [tex]n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 ) [/tex]
=> [tex]n =68[/tex]
1) (3.1 x 10^1)(4.3 x 10^-6)
Answer:0.0001333
Step-by-step explanations :
1/3(9x +45) - x = 6x +4
1/3(9x+45)-x=6x+4
we can move the numbers on the right and the x's on the left
9x/3+45/3-x=6x+4
3x-x-6x=4-15
-4x=-11
x=11/4
Answer:
x = 11/4
Step-by-step explanation:
thats the answer...........................
what is 9 percent of 30948
Answer:
2785,32
Step-By-Step:
30948*0.09
Answer:
2785.32
Step-by-step explanation:
solution,
9 % of 30948
= 9/100×30948
= 278532/100
= 2785.32
9%of 30948 is 2785.32
A bag has 5 yellow marbles 3 red marbles and 2 blue marbles.Quinn randomly picks a marble from bag and returns it before another is picked. How many times would quinn expect to pick a blue marble if he picks a marble 200 times
Answer:
40 times
Step-by-step explanation:
5+3+2=10
10(x)=200
x=20
The first coordinate of the point ( - 3, 2) indicates the point is located
Answer:
In the first coordinate
Step-by-step explanation:
For x = -3, the point is either located in 2nd or 3rd quadrant.
What is the general equation of a Straight line? What is a coordinate?
The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
A coordinate is represented as -
P(x, y)
where -
[x] is abscissa
[y] is ordinate
We have the following coordinate -
(-3, 2)
For x = -3, the point is either located in 2nd or 3rd quadrant
Therefore, for x = -3, the point is either located in 2nd or 3rd quadrant.
To solve more questions on geometry, visit the link below-
brainly.com/question/20400984
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What is the value of x in the equation 2 (6 x + 4) minus 6 + 2 x = 3 (4 x + 3) + 1?
1
3
4
6
Answer:
x=4
Step-by-step explanation:
I did the edge quiz pretty sure I got it correct
Answer:
x=4
Step-by-step explanation:
CAN SOMEONE HELP ME ITS URGENT I NEED THIS ASAP
Answer:
1200
Step-by-step explanation:
1680/1050 = 1920/x
1680x = 2,016,000
x=1200
There are 1200 vertical pixels.
Step-by-step explanation:This is a ratio problem, which uses ratios to relate different items in the question. In a ratio problem, it's important to remember to
1) Write the items in the ratio as a fraction.
2) Make sure that you have the same items in the numerator and denominator.
→ Step 1:The first step is to assign variables. Let x = vertical resolution of the 23" monitor.
Write the items in the ratio as a fraction.
[tex]\frac{horizontal}{vertical} = \frac{1680}{1050} = \frac{1920}{x}[/tex]
→ Step 2:Solve the equation.
Cross multiply:
[tex]1680*x = 1920 * 1050[/tex]
[tex]1680x=2016000[/tex]
Isolate variable x:
[tex]x=\frac{2016000}{1680}[/tex]
[tex]x=1200[/tex]
Can someone please help me with this question I don’t understand it
Brand A: 32 Diapers, $8.99: about 28 cents per diaper
Brand B: 50 Diapers, $12.49: about 24 cents per diaper
You divide the amount of diapers by the money.
For example, 32 diapers/$8.99 equals about 28 cents per diaper and 50 diapers/$12.49 equals about 24 cents per diaper.
Brand B is the better deal since you save about 4 cents more.
Find the area of the circle. Use pi =3.14 and round to the nearest hundredth. R=14m
Answer:
615.75 or 616.0
Step-by-step explanation:
find the number of each kind of atom
2MgO
What is the rate of change (Slope) of the cost with respect to the number of miles for the Yellow Cab Company?
Answer:
The slope would be 2
Step-by-step explanation:
All you do is pick two order pairs: (2,6) and (4,10), then you do y1 - y2, so 10-6 to get 4 then do x1 - x2, so 4 - 2 which is 2, then you divide 4 by 2 to get 2.
mZA = (x + 30°
mZB = xº
mZC = (x + 60°
Need help pleaseeee
Answer:
.
Step-by-step explanation:
What is 37% of 600?
ANSWER CORRECT
Answer:
the answer is 222
Answer:
222
Step-by-step explanation:
To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 600, and then finally divide the numerator by the denominator on the right side to get the answer. Here is the work to illustrate:
37/100 = X/600
X/600 = 37/100
X*600/600 = 37*600/100
X = 22200/100
X = 222
The tax rate for a motel is 18%. How much will you pay in taxes for a room that costs $108?
Answer:
$19.44
Step-by-step explanation:
$108 x 18% = $19.44
The chart below contains the results of a survey in which students were asked about their cell phone plan.
Cell Phones Plans
Plan
Students
No cell phone
20
Voice only
14
Voice and texting
12
Voice, texting, and data
4
What percent of the students surveyed have a phone plan with texting?
16%
24%
32%
68%
Answer:
I think 32% (Let me know if I am wrong)
Step-by-step explanation:
Answer:
C) 32%
Step-by-step explanation:
plz help me out if you can
Answer:
D $26
Step-by-step explanation:
Find 4cos2a, if
[tex] \cos(a) = \frac{ \sqrt{3} }{2} [/tex]
If you mean to find 4 cos(2a), then recall the double angle identity for cosine:
cos(2x) = 2 cos²(x) - 1
so that
4 cos(2a) = 4 (2 cos²(x) - 1) = 4 (√3 - 1)