Answers
Answer:
w=2 3/4
Step-by-step explanation:
Related Questions
which expression is equivalent to 6x + 8
Answers
Explanation:
We would use the distributive property to multiply 2 by 3x, then again by 4, which gives us 6x+8.
Hope it helps you...
Which equation has the same solution as x^2-6x-12=0
1) (x+3)^2=21
2) (x-3)^2=21
3) (x+3)^2=3
4) (x-3)^2=3
Answers
Answer:
B) (x-3)^2=21
Step-by-step explanation:
[Exponential] |x|-2|-1|0|1|2| |y|2/9|2/3|2|6|18| When the x-value increases by 1, the y-value ________ (b-value)
Answers
Answer:
[tex]b = 3[/tex]
The value of y triples
Step-by-step explanation:
Given:
[tex]\begin{array}{cccccc}x & {-2} & {-1} & {0} & {1} & {2} \ \\ y & {\frac{2}{9}} & {\frac{2}{3}} & {2} & {6} & {18} \ \end{array}[/tex]
Required
Determine b value
An exponential equation is:
[tex]y = ab^x[/tex]
When [tex]x = 0; y =2[/tex]
So:
[tex]y = ab^x[/tex]
[tex]2 = a * b^0[/tex]
[tex]2 = a[/tex]
[tex]a = 2[/tex]
When [tex]x = 2; y = 18[/tex]
So:
[tex]18 = a * b^2[/tex]
Substitute 2 for a
[tex]18 = 2 * b^2[/tex]
Divide by 2
[tex]9 = b^2[/tex]
Take positive square roots of both sides
[tex]3 = b[/tex]
[tex]b = 3[/tex]
When Jaya goes bowling, her scores are normally distributed with a mean of 105 and a standard deviation of 10. Using the empirical rule, determine the interval that would represent the middle 95% of the scores of all the games that Jaya bowls.
Answers
Answer: (75, 135)
Step-by-step explanation:
Because the empirical rule is 3 standard deviations of the mean you would add and subtract to get your desired interval.
In this case our mean is 105 and our deviation is 10.
What you would do is add 10 to 105, 3 times to find your greatest number and the you would subtract 10 from 105, 3 times to get your lowest number.
105 + 10 + 10 + 10 = 135
105 - 10 - 10 - 10 = 75
Answer: (75, 135)
Answer:
Step-by-step explanation:
The answer is 85,125
what are the intercepts of this function f(x)= -x^2 + 6x - 5
Answers
The hexagon PQRSTU is plotted on a coordinate plane with vertices P(–1, 0), Q(–1, 3), R(1, 4), S(2, 5), T(4, 4), and U(4, 0). What is the hexagon's perimeter?
Answers
Answer:
I got- 18.2
Step-by-step explanation:
I have this on a exam im working on right now.
The perimeter of the hexagon is 12 + 2√5 + √2
What is the distance between two points of a line?The distance between two points of a line is given as:
Distance = [tex]\sqrt{(c - a)^2 + (d - b)^2}[/tex]
Where (a, b) an (c, d) are the two points.
We have,
Hexagon PQRSTU.
Vertices.
P = (–1, 0)
Q = (–1, 3)
R = (1, 4)
S = (2, 5)
T = (4, 4)
U = (4, 0)
Now,
We can make 6 lines.
PQ, QR, RS, ST, TU, and PU
We find the distance between each line.
PQ = [tex]\sqrt{(-1 + 1)^2 + (3 - 0)^2}[/tex] = 3
QR = [tex]\sqrt{(1 + 1)^2 + (4 - 3)^2}[/tex] = √5
RS = [tex]\sqrt{(2 - 1)^2 + (5 - 4)^2}[/tex] = √2
ST = [tex]\sqrt{(4 - 2)^2 + (4 - 5)^2}[/tex] = √5
TU = [tex]\sqrt{(4 - 4)^2 + (0 - 4)^2}[/tex] = 4
PU = [tex]\sqrt{(4 + 1)^2 + (0 - 0)^2}[/tex] = 5
Now,
The perimeter of the hexagon.
= 3 + √5 + √2 + √5 + 4 + 5
= 12 + 2√5 + √2
Thus,
The perimeter of the hexagon is 12 + 2√5 + √2
Learn more about distance of a line here:
https://brainly.com/question/14645718
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PLSSS HELP 40 POINTSS ILL SEND 30 MORE IF U HELPP PLSSS
The cost of the hiking trip this year is 2/3of the cost of last year's trip. This year's trip cost $32
1. Write an equation that represents the cost of last years trip.
2.What was the cost of last year's trip
Answers
Answer:
The equation is ( 32/2 ) × 3 = 48.
Step-by-step explanation:
In order to find the answer, we must find one third of last years trip. To do this, we can simply divide the cost of this year's trip by two, 32/2=16.
Now if we multiply this years trip by 3, 16×3=48, we can see that the total cost of last years trip was $48.
If we'd like to turn this into a equation, it looks like this:
( 32/2 ) × 3 = 48.
Express as a trinomial.
(x-9)(x+4)
Answers
Hope this helps!
Solve the system of equations by substitution.
y=3x-10, 2x+3y=14
Its 5-3 MathXL btw
Answers
2x+9x-30=14
11x=44
x=4
y=3(4)-10
y=2
Solve for x, 2-x= -6-4x
a . -2/3
b.-2/5
c-8/3
d.-8/5
Answers
Answer:
-8/3
Step-by-step explanation:
2 - x = - 6 - 4x <-- Add 4x to the left side
2 + 3x = - 6 <-- Subtract 2 from the left side
3x = -8 <-- Divide 3 on both sides
x = -8/3
Answer:
x = -8/3
Step-by-step explanation:
Consolidate x terms on the right side:
2-x= -6-4x becomes 2-x + x = -6-4x + x, which in turn becomes:
2 = -6 - 3x, or 3x = -8. Then, dividing both sides by 3, we get x = -8/3
Sandy bought 1 1/4 pound of turkey and 1/2 pounds of cheese at the deli. Both items are on sale for $4 per pound. What is the total cost?
Answers
Sandy's $8.50 been on the deli counter.
The diagonals in a kite __________.
a) bisect each other
b) are perpendicular
c) are congruent
Answers
Answer:
B
Step-by-step explanation:
Diagonals in a kite are perpendicular. I just learned this. Mark Brainliest if you get it right!!!
For questions 3-5, use the FOIL method to find the product of the binomials
3. (2x+3)(x+1)
Answers
Answer:
2x² + 2x +3x +3= 2x² + 5x + 3
BRAINLIEST 40 POINTS ALL QUESTIONS PLEASE!!
Answers
Answer:
Step-by-step explanation:
The shapes have the same height, but the base of the rectangle is half the base of the triangle. They have the same area.
:::::
area of rectangle = base × height = 4 units × 6 units = 24 units²
:::::
area of triangle = ½×base×height = ½×8 units × 6 units = 25 units²
:::::
The triangle looks bigger, but isn't. Shape affects area.
Write the following expression in decimal notation: 234 x 109.
Answers
=2.34x10^11
can someone please help. I need the answer
Answers
Answer:
Ella since it is m cubed in brackets X 5 and the 3 is not affected so stays as a 3
Answer:
Ella
Step-by-step explanation:
Ella, because 5(m times m times m)-3 is the same as 5m^3- 3, just expanded.
A map has a scale of 3 cm and 20 cm which statement is true or false two cities are actually 66 cm part are9.9 cm part
Answers
Answer options
A. Two cities that are 7.5 cm apart on the map are actually 50 km apart.
D. Two cities that are actually 66 km apart are 9.9 cm apart on the map.
Step-by-step explanation:
Step 1
Indicate the scale as shown;
3 cm : 20 km, meaning 3 cm on the map represents 20 km on the ground
A). what does 7.5 cm represent on the ground
Distance on ground=(7.5×20)/3=50 km
B). what does 4 cm represent on the ground
Distance on ground=(4×20)/3=26.67 km
C). what does 45 km on ground represent on the map
Distance on map=(45×3)/20=6.75 cm
D). what does 66 km on ground represent on the map
Distance on the map=(66×3)/20=9.9 cm
please help me, I'm stuck on the second one. Also for i) i got angle ABD because angles in a semicircle measures 90 degree and OAX because the angle between the tangent and a radius is 90 degrees
Answers
Answer:
i)
DA is diameter and AX is tangent to circleYour answer is correct
m∠ABD = 90°, m∠DAX = 90°ii)
Given m∠BAX = 42° and ∠DAB is complementary with BAX ⇒
m∠DAB = 90° - 42° = 48°DC = BC ⇒ intercepted arcs are same ⇒
∠CDB = ∠BDCmDC = mCB ⇒ mDCB = ∠DAB = 48° ⇒
m∠CDB = m∠BDC = 1/2*48 = 24°iii)
∠CBA
∠CBA is supplementary with ∠ADC as opposite angles of cyclic quadrilateral (∠ADB = ∠BAX = 42°)
m∠ADC = m∠ADB + m∠CDB = 42° + 24° = 68°m∠CBA = 180° - m∠ADC = 180° - 68° = 112°∠BAE
EA║CB and AB is transversal ⇒ CBA and BAE are supplementary angles:
m∠BAE = 180° - 112° = 68°∠DCE
∠DCE = ∠DCB - ∠BCEm∠DCB = 180° - m∠DAB = 180° - 48° = 132°m∠BCE = 180° - m∠BAE = 180° - 68° = 112°∠DCE = 132° - 112° = 20°What is the value of a2+0.4a for a=0.5?
Answers
Let x=−118 x = - 11 8 and y=−114 y = - 11 4 .
Answers
Answer:
Let x=−118 and y=−114 . On a number line
Which expression has a negative value?
Multiple choice question.
A) x+y
B) x−y
C) x·y
D) xy
Step-by-step explanation:
Could you guys please help me solve this basic math. PLS OMG ITS DUE :(
Answers
Answer:
21÷-3=-7
I dont know what all those extra boxes are for but I hope I helped a little
$37.30 for 2 pairs of jeans
Answers
Answer:
18.65
Step-by-step explanation:
What is an equation of the line that passes through the points (0,-5) and (-6,0)?
Put your answer in fully reduced form.
Answers
Answer:
y=-5/6x-5
Step-by-step explanation:
0-(-5)/-6-0
-5/6 slope
y-(-5)=-5/6(x-0)
y+5=-5/6x
y=-5/6x-5
What is the slope of the line that passes
through the points (3, 2) and (-1,-4)? Write
your answer as a fraction in simplest form
Answers
Answer:
Step-by-step explanation:
Slope = (Difference of y-coordinates)/(difference of x-coordinates)
= (-4 - 2)/(-1 - 3)
= (-6)/(-4)
= 3/2
Help please
I will give a brainliest
Answers
MIDTERMS ARE HARD :((((((( PLZ HELP
Answers
Answer:
c. x-intercept is (6, 0) and the y-intercept is (0, 10).
Step-by-step explanation:
i hope this helps :)
Zoe bought 5 chicken wings for $7.50. What's the unit cost of one wing? On the double number line below, fill in the given values, then use multiplication or division to find the missing value.
Answers
Answer:
Step-by-step explanation:1.10+1.10+1.10+1.00+1.00+1.00+1.00
Answer:
Step-by-step explanation: 1.50
Explain why a graphical display might be skewed. How
do you ensure data isn't skewed?
Answers
Answer: hey mate i have you answer
Step-by-step explanation: Sample Response: If the data is collected in a biased manner, the graph could be skewed. Also, if the number of observations is too small, the graph can be skewed. To ensure the data is not skewed, collect a large representative unbiased sample
Answer:
Sample Response: If the data is collected in a biased manner, the graph could be skewed. Also, if the number of observations is too small, the graph can be skewed. To ensure the data is not skewed, collect a large representative unbiased sample
Step-by-step explanation:
need help this is geometry will mark brainliest!!
Answers
Answer:
37.7 (approx.)
Step-by-step explanation:
The radius of the biggest circle is 3+2=5. And so the area is [tex]\pi (5)^2 = 78.54[/tex]. In the same way, the area of the two small circles are [tex]\pi (3)^2 = 28.27[/tex] and [tex]\pi (2)^2 = 12.57[/tex]
So, the area of shaded region = Area of the biggest circle - (area of small two circles)
[tex]= 78.54 - (28.27 + 12.57)\\37.7 (approx.)[/tex]
Erika paid a self-employment tax last year. She calculated the self-employment tax for different amounts of net
earnings and recorded them in the table shown.
Self-Employment Tax
Net
Earnings, X
Self-Employment
Tax, Y
$0
$0
$15,000
$2,295
$30,000
$4,590
$45,000
$6,885
Which function describes the relationship between x, the amount of net earnings, and y, the self-employment tax?
1-12
5
10
11
13
14 15 16 17
Back
Review/End
Next
Answers
Answer:
y=153/1000x
Step-by-step explanation:
Answer:y=153/1000x
Step-by-step explanation: