Answer:
This is just basic 30-60-90 triangle stuff, recognizing that the angle takes you into the 2nd quadrant.
-0.5 + i(√3)/2 in the complex plane or
(-.05, (√3)/2 ) in the xy-plane
Step-by-step explanation:
witch item has a unit rate of $6.50 A) caps: 4 for $25.00 B) posters: 3 for $20.25 C) tote bag: 4 for $30 D) T-shirts: 5 for $32.50 i need answers quick pls.
Answer:
a
Step-by-step explanation:
Which equation shows an example of the associative property of addition?
O (-4 + 1) + 4; = -4+ (i + 41)
O(-4 + 1) + 4; = 4; + (-4; + 1)
O41-(-41 + 1) = (4i – 41) + (41 - 1)
O(-41 + 1) + 0 = (-41 + 1)
Answer:
o(-4+1)+4;=4;+(-4;+1)
3. Of the 80 students in class, 25 are studying German, 15 French and 13 Spanish. 3 are studying German
and French; 4 are studying French and Spanish; 2 are studying German and Spanish, and none is studying
all 3 languages at the same time. How many students are not studying any of the three languages?
Answer:
25 + 15 + 13 + 3 + 4 + 2 = 40 + 16 + 6 = 62
80-62=18
18 are left so 18 are not studying any languages.
Hope this helps
Step-by-step explanation:
If a= .75 and b= .50, what is the perimeter of the rectangle?
Answer:
C. 14 inches
Step-by-step explanation:
The perimeter is double the sum of length and width:
P = 2((4a +3) +(6b -2) = 8a +12b +2
For the given values, this is ...
P = 8(0.75) +12(0.50) +2 = 6 + 6 + 2 = 14
The perimeter is 14 inches.
Answer:
C. 14 inches
Step-by-step explanation:
Solve the system of equations.
y = x2 - 5
y = -2x + 3
Answer:
(- 4, 11 ) and (2, - 1 )
Step-by-step explanation:
Given the 2 equations
y = x² - 5 → (1)
y = - 2x + 3 → (2)
Substitute y = x² - 5 into (2)
x² - 5 = - 2x + 3 ( subtract 2x + 3 from both sides )
x² + 2x - 8 = 0 ← in standard form
(x + 4)(x - 2) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 4 = 0 ⇒ x = - 4
x - 2 = 0 ⇒ x = 2
Substitute these values into either of the 2 equations for corresponding values of y.
Substituting into (2)
x = - 4 : y = - 2(- 4) + 3 = 8 + 3 = 11 ⇒ (- 4, 11 )
x = 2 : y = - 2(2) + 3 = - 4 + 3 = - 1 ⇒ (2, - 1 )
Which number lines have points that represent additive inverses? Check all that apply.
Answer:
b and d on edge
Step-by-step explanation:
bc it is
Answer:
false
true
false
true
Step-by-step explanation:
hope it helps :)
how many tiles are required to pave the floor of half measuring 12 3/4 m × 10 1/4 m. if square tiles of side 1/4m are used
Answer:
2091 tiles
Step-by-step explanation:
(51/4×41/4)÷(1/4×1/4)
2091 tiles
a parking garage charges $2.50 base free plus an hourly rate of $4.00. If you hve most $12.50 how many parking you can
Answer: 2.5 hours or 2 hr and 30 min
Step-by-step explanation:
We can set up an equation to find how many hours you can park.
2.5+4x=12.5
The 2.5 comes from the base fee. The 4x is the hourly rate, where x is hours. The 12.5 is the total amount of money you have.
Since we have our equation, we can solve for x.
4x=10
x=2.5
You can park for 2.5 hours, or 2 hours and 30 min.
find hcfof 240 and288
Answer:
48 (HCF)
Step-by-step explanation:
I'm assuming "hcfof" is HCF or Highest Common Factor.
240÷5=48
288÷6=48
The HCF of 240 and 288 is 48.
Circle O is shown. Line segments A O and B O are radii. The length of O B is 16 inches. Angle A O B has a measure of StartFraction pi Over 4 EndFraction
In circle O, angle AOB measures radians.
What is the length of arc AB?
π in.
If you know the angle in radians, then the length of the arc is
(measure of the angle in radians) x (radius of the circle) .
In this circle, we know the angle and we know the radius.
Arc AB = ( π/4) x (16")
Arc AB = 4π inches
Arc AB = about 12.566... inches
Answer:
6 pie correct on edge
Step-by-step explanation:
Which graph shows a dilation?
The graph that shows a dilation among the given graphs is; Graph 1.
Dilation in graphs simply means each side is multiplied by the samescale factor. What this means is that the ratio of each dilated side to their
respective old sides before dilation must be the same scale factor.
First Graph; We can see it is a rectangle and the pre-dilated image has
2 units along the y - axis and 4 units across the x-axis. After dilation, it now
has 4 units along the y - axis and 8 units across the x-axis. This means the
scale factor in both axis are; 4/2 = 2 and 8/4 = 2. They are both the same
scale factors and as such this graph shows a dilation.
For the second, third and fourth graphs, the scale factors after dilation
are not equal for both axis and as such they do not represent dilation.
Read more at; https://brainly.com/question/21930134
PLZ HELP IM REALLY CONFUSED WILL MARK BRAINLIEST
Regina is beginning a training program to prepare for a race. In week 1, she will run 3 miles in each workout. Each week thereafter, she plans to increase the distance of her runs by 20%. Write an equation to show the number of miles Regina plans to run during her workouts each week. Use the variable "n" to represent the week number.
Answer:
the answer is 3n X 20% =
Step-by-step explanation:
They are asking to show an equation, and since "n" is to represent the number of weeks, you would have to multiply 3 by n to get the number of miles Regina will run. So the equation is 3n X 20% =
please help me asap this is hard for me :( i will give brainliest to the BEST explanation :)
Answer:
The 4 pack is a better deal
Step-by-step explanation:
Take the price and divide by the number of rolls to get the price per roll
The 4 pack is
2.04/4 =.51 per roll
The 9 pack is
4.68/9 =.52 per roll
The 4 pack is a better deal
Answer:
4 pack
Step-by-step explanation:
We must calculate the price per roll for each pack. To do this, divide the price by the number of rolls.
4 pack
price/number of rolls
2.04 for 4 rolls.
price=2.04
rolls=4
2.04/4
0.51
It costs 0.51 per roll
9 pack
price/number of rolls
price=4.68
rolls=9
4.68/9
0.52
It costs 0.52 per roll
The better value is the lower price. 0.51 is less than 0.52, therefore the 4 pack is the better deal.
The sum of the terms in a row in Pascals Triangle follows the rule Sᵣ = 2ʳ. Where S is the sum, and r the rᵗʰ row. Use the formula to find the sum of the terms in the tenth row.
Answer:
1024
Step-by-step explanation:
[tex] S_r = 2^r [/tex]
For the 10th row, r = 10.
[tex] S_{10} = 2^{10} [/tex]
[tex] S_{10} = 1024 [/tex]
2pq - 16m - 13pq+ 19m
Pleas simplify
Answer:
-11pq +3m
hope it helps!
Step-by-step explanation:
2pq -16m -13pq +19m
(Group the terms with same variables)
= (2pq-13pq) + (-16m+19m)
= (2-13)pq + (-16+19)m
add/subtract the numbers
= -11pq +3m
I will give you brainliest!!!! Use substitution method to solve the system of equations. y=6x-5 y=x+5
Answer
C
Step-by-step explanation:
PRIMERO ENCUENTRAS x
y = 6x - 5
y = x + 5 (-1)
5x + 10
x = 10/5 = 2
ENTONCES 2 SE SUSTITUYE EN CUALQUIERA DE LAS DOS ECUACIONES
ORIGINALES.
y = 62) - 5 = 7
Find the value of x. then tell whether the side lengths form a Pythagorean triple
Answer:
x = √226
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
In that case, plug in a and b,
15² + 1² = c²
c = √(15² + 1²)
c = 15.0333
This is NOT a Pythagorean triple.
What is the length of BC in the right triangle below?
Answer: D √234
Step-by-step explanation:
a^2 + b^2 = c^2
3^2 + 15^2 = c^2
9 + 225 = c^2
c = √234
Select the graph for the solution of the open sentence. Click until the correct graph appears. 4|x| - 1 < -4
Answer:
No solution!
Just turned it in <3
Una compañía fabricó tres tipos de muebles: sillas, mecedoras y
sofás. Para la fabricación una silla, se necesitan 1 unidad de madera, 1
de plástico y 2 de aluminio; una mecedora lleva 1 unidad de madera, 1
de plástico y 3 de aluminio, mientras que para un sofá se precisa
utilizar 1 unidad de madera 2 unidades de plástico y 5 unidades de
aluminio. La compañía disponía de 400 unidades de madera, 600 de
plástico y 1500 de aluminio. Sabiendo que utilizó todas sus existencias
de materiales, ¿cuántos muebles de cada tipo fabricó (sillas, mecedoras,
sofás)? sistema de ecuación 3*3 método cramer
Answer:
neuf mille
je ne suis pas sûr
Step-by-step explanation:
Can somebody PLEASE help me with this :) ??
Answer:
Ab, De
Step-by-step explanation:
You need the base and the height in order to find out if the triangles are similar
I WILL MARK YOU BRAINLIEST!!!! PLZ HELP
Answer:
C. G(x) is a negative number with a small absolute value
Step-by-step explanation:
As x increases, G(x) goes towards 0 from the a negative quadrant.
what are the slope and the y-intercept of the linear function that is represented by the graph?
Answer:
They-intercept of the linear function that is represented by the graph is (0,-2)
Step-by-step explanation:
it is where the line meets with the y-axis at a single point, in this case the point is (0,-2)
I hope that this helped
have a good day
Answer:
Slope: 2/3; y-intercept: -2
In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half. Which expression represents the total number of points the player scored in the game?
This question is incomplete
Complete Question
In the first half of a basketball game, a player scored 9 points on free throws and then scored a number of 2-point shots. In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half. Which expression represents the total number of points the player scored in the game?
a) 2x + 3x + 9
b) 2x + 3 + 9
c) 2x + 3x + 9x
d) 2 + 3x + 9
Answer:
a) 2x + 3x + 9
Step-by-step explanation:
Let the number of points shots a player scores = x
In a free throw, the player scored 9 points = 9
The player also scored a number of 2-point shots = 2x
In the second half, the player scored the same number of 3-point shots as the number of 2-point shots scored in the first half = 3x
The expression represents the total number of points the player scored in the game =
2x + 3x + 9
find the solution of pair of equation y=0 and y= -6
Answer:
Step-by-step explanation:
there is no soltion because it is not intersects
Answer:
No solution as it will not intersect.
At a supermarket, the price of a Thanksgiving turkey is determined by how many pounds the turkey weighs. The price of a 12.4 pound turkey is $15.50. Write an equation that can be used to determine the price, p, in dollars, of any turkey based on the number of pounds, t, the turkey weighs. Explain the process you used to determine the equation.
Answer:
The expression is: [tex]p = 1.25*t[/tex]
Step-by-step explanation:
Since the price is determined by the weight of the turkey, we need to find the value of one pound in order to create the expression, to do that we will apply the point given.
[tex]\text{price per pound} = \frac{\text{price}}{\text{weight}}\\\text{price per pound} = \frac{15.5}{12.4} = 1.25[/tex]
Each pound costs $1.25, therefore the expression used to calculate the price of the turkey must be the weight of the turkey in pounds multiplied by the price of each pound.:
[tex]p = 1.25*t[/tex]
Find a polynomial equation that has double zeros at x = -1, and x = 8.
Answer:
x^2-7x+8=0
Step-by-step explanation:
(x+1)(x-8)=0
x^2-7x+8=0
1) h(x)=3x3
g(x)= - 4x+1
Find (h+g)(10)
Answer:
[tex](h+g)(10) = 2691[/tex]
Step-by-step explanation:
[tex]h(x) = 3x^3\\g(x) = -4x+1[/tex]
Adding both equations will make it:
[tex](h+g)(x) = 3x^3-4x+1[/tex]
Putting x = 10 will make it:
[tex](h+g)(10) = 3(10)^3-4(10)+1[/tex]
= 3(1000)-40+1
= 3000-39
= 2961
A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3°C. The
temperature rises another 2°C when more of solid X is added to the solution. What does this indicate about the effect of
adding more solid?
It increased the number of molecular collisions.
It decreased the number of molecular collisions,
It decreased the space between the molecules and lowered the reaction rate.
It increased the space between the molecules and increased the reaction rate.
Answer:
A. It increased the number of molecular collisions.
2/7 - 3/2 for anyone that doesant know that’s a fraction am struggling on
Answer:
-17/14
Step-by-step explanation:
To subtract fractions, you must have a common denominator. If that is not given, you make it.
You do so buy finding the LCM of denominators:
LCM of 7 and 2 = 14
Now, here you have multiplied the denominators either by 7 or 2. You do the same for the respective numerators:
2x2/14 - 3x7/14 = 4/14 - 21/14.
Now that you have the same denominator, subtract the numerators:
4-21 = - 17
Put it back as a fraction : -17/14
hope this helps.
