Answer:
9.79795897113
Step-by-step explanation:
hope this helps
Answer:9.7
Step-by-step explanation:
5000 with a 44% Markdown
Answer:
New price is 2800
Step-by-step explanation:
total decrease in price 2200
Which situation is best represented by the equation y=5x + 10?
Answer:
x=1/5y-2
Step-by-step explanation:
Step 1: Flip the equation
5x+10=y
Step 2: Add -10 to both sides
5x+10+-10=y+-10
5x=y-10
Step 3: Divide both sides by 5.
5x/5 =y-10/5
x=1/5y-2
5 x + 5 = -5
what is x?
Answer:
x=-2
Step-by-step explanation:
-72/3 +(-51/2) +83/4
Answer:
-28.75
I used a calculator
Answer:
-72/3 +(-51/2) +83/4
=-28.75
have a nice day
Find the circumference of a circle that has an area of 153.86 cm.
Answer:
C=[tex]14\pi[/tex] or ≈43.96cm
Step-by-step explanation:
Start by figuring out the Area of the circle to get the radius (r)
Area (A)=153.86 cm
A=[tex]\pi r[/tex]²
153.86=[tex]\pi[/tex]r²
153.86÷[tex]\pi[/tex]=r²
49=r²
√49= r
r= 7cm
Next insert r=7cm into the Circumference equation of a circle
C=2[tex]\pi[/tex]r
C= 2×[tex]\pi[/tex]×7
C=14[tex]\pi[/tex] or C=43.96cm
A nationwide furniture company wants to survey their customers to determine whether or not they are providing quality customer service across the United States. They have 140 stores with an average of about 3,000 customers each per month. Which survey group would produce a valid sample?
A television screen, length is 16 1/2 inches, width is w inches, and area is 462 square inches. Select all THREE equations that represent the relationship of the length, width, and area of the television.
Answer:
it's B, C, and D
Step-by-step explanation:
A. w ⋅ 462 = 16 1/2
not A
w * a ≠ l
B. 16 1/2 ⋅ w = 462
is B
l * w = a
C. 462 ÷ 16 1/2 = w
is C
a / l = w
D. 462 ÷ w = 16 1/2
is D
a / w = l
E. 16 1/2 ⋅ 462 = w
not E
l * a ≠ w
What does the standard form of a linear equation require?
A)No fractions
B)A must be negative
C)B must be positive
Answer:
the standard form of a linear equation required is B must be positive
The volume is ___ cubic cm.
Answer:
Step-by-step explanation:
This looked very difficult UNTIL I looked at the pyramid as ONE HALF of a larger pyramid! Image a mirror image of the pyramid creating a pyramid that is 12 cm of the front and back side and 6 cm on the left and right edge.
IT IS NO LONGER A SQUARE PYAMID so you need the volume for a rectanglar pyramid
The volume of a square pyramide is .....
V = side² × (height / 3)
The volume of a rectangular pyramide is .....
V = base area × (height / 3)
= length × width × (height / 3)
= 12 × 6 × 10 / 3 cm³ BUT REMEMBER we want only HALF of the
= [12 × 3 × 10] divide by 2 cm³ Rectangular pyamid
Volume of the image shown in the diagram is ....
= 360 / 2 cm³
= 180 cm³ <----------------- Final Answer
Answer:
120
Step-by-step explanation:
I calculated it on Goggle
Solving systems of equations by graphing. how do you do this
Answer:
Solve systems of equations by graphing
A system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect.
Example
[tex]\left \{ {{y=2x+2} \atop {y=x-1}} \right.[/tex]
Graph the equations in a coordinate plane
The two lines intersect in (-3, -4) which is the solution to this system of equations.
Step-by-step explanation:
Find the constant of proportionality k as a fraction in simplest form. then enter an equation for the relationship between x and y.
x: 8, 16, 24, 32
y: 2, 4, 6, 8
Answer:
k=1/4 and y=(1/4)x
Draw a line representing the “rise” and a line representing the “run” of the line. State the slope of the line in the simplest form.
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
The slope is the "rise" over the "run" of the line, or in other words, the number of units the line travels upwards over the number of units the line travels to the right.
[tex]\frac{rise}{run}[/tex]
We can see that, on the graph, for every 3 units the line travels to the right, it travels 2 units up. Therefore, the rise is 2 while the run is 3.
[tex]\frac{2}{3}[/tex]
Therefore, the slope of the line is [tex]\frac{2}{3}[/tex].
I hope this helps!
Thomas drew a triangle which has one angle that measures more than
90° and two angles that each measure less than 90°. What kind of
triangle did he draw?
Answer:
obtuse triangle
Step-by-step explanation:
it is obtuse because it needs to have all 3 sides to be acute to be an acute angle and it doesn't have any 90° angles so it has to be obtuse. Also because to be an obtuse it has to have 2 acute angles and 1 obtuse angle. Hope this helps!!
3x+2y=7 y=3x-19 could someone show me a step by step for this equation for substitution
Answer:
[tex]\boxed {\boxed {\sf (5,-4)}}[/tex]
Step-by-step explanation:
We are given the equations:
[tex]3x+2y=7 \\y=3x-19[/tex]
Since we know what y is equal to, we can substitute that expression in for y in the first equation.
[tex]3x+2(3x-19)=7[/tex]
Distribute the 2. Multiply each term inside the parentheses by 2.
[tex]3x+(2*3x)+ (2*-19)=7[/tex]
[tex]3x+6x+-38= 7[/tex]
Combine the like terms (the terms with variables).
[tex]9x-38=7[/tex]
Since we are solving for x, we must isolate the variable. 38 is being subtracted and the inverse of subtraction is addition. Add 38 to both sides.
[tex]9x-38+38=7+38 \\9x=7+38\\9x=45[/tex]
Now x is being multiplied by 9. The inverse of multiplication is division. Divide both sides by 5.
[tex]9x/9=45/9\\x=45/9\\x=5[/tex]
Now we know what x is equal to and can substitute the value into the second equation.
[tex]y=3x-19[/tex]
[tex]y=3(5)-19[/tex]
Multiply.
[tex]y=15-19[/tex]
Subtract.
[tex]y= -4[/tex]
Coordinate points are written as (x,y). Therefore, the solution is (5, -4).
Answer:
x=5,y=-4
Step-by-step explanation:
[[tex]\frac{3x+2y=7}{y=3x-19}[/tex]][3x+2(3x-19)=7][9x-38=7]y=3 · 5 - 19x=5,y=-4if the two adjacent angles are supplementary then their outer sides are???
Answer:
If the bisectors of two adjacent angles are perpendicular to each other, are the angles then supplementary angles?
Suppose two angles ABC and CBD are x and y.
x+y = 180 deg.
The bisector of angle ABC (BE) and the bisector of angle CBD (CF) will form angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.
Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle
Adjacent angles are when the 2 angles have a common vertex and a common arm.
if the exterior sides of 2 adjacent angles are perpendicular, then the angles are complementary angles.
Then the sum of the 2 adjacent angles is a right angle - 90°.
When 2 angles add up to 90°, they are called a pair of complementary angles.
Step-by-step explanation:
Answer: Hello: ) ✨ If the bisectors of two adjacent angles are perpendicular to each other, are the angles then supplementary angles?
Suppose two angles ABC and CBD are x and y.
x+y = 180 deg.
The bisector of angle ABC (BE) and the bisector of angle CBD (CF) will form angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.
Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle
Adjacent angles are when the 2 angles have a common vertex and a common arm.
if the exterior sides of 2 adjacent angles are perpendicular, then the angles are complementary angles.
Then the sum of the 2 adjacent angles is a right angle - 90°.
When 2 angles add up to 90°, they are called a pair of complementary angles.
Have an amazing Day/Night <3 .
Jack jogged 15 miles in 3 hours. If he ran at a
constant speed, how many miles did he run in 2.5
hours?
Answer:
15 miles= 3 hours
x = 2.5
37.5/3= 3x/3
12.5 miles = x
HELP ASAP
Keiko divided 5 cups of milk into 1/4 cup portions. How many 1/4 cup portions did Keiko have?
Froyo, a frozen yogurt store, has designed a cylindrical container for a new vanilla
yogurt. The container is 20 cm high and holds 2L. What is its radius, to the nearest
tenth of a centimeter?
Zach has a box with a volume of 48 cubic units. Which could be the dimensions of Zach's box?
Select all that apply.
A. 2 units wide, 3 units long, 8 units tall
B. 5 units wide, 8 units long, 1 unit tall
C. 4 units wide, 6 units long, 2 units tall
D. 3 units wide, 5 units long, 3 units tall
Convert the following equation into standard form.
y=-2x/9+2
PLZ HELP ILL GIVE BRAINLY
Answer:
2 x + 9 y = 18
18 ≥ -2x
i cant solve this
Answer:
[tex]x\geq -9[/tex]
Step-by-step explanation:
Answer:
x ≥ - 9
Step-by-step explanation:
Given
18 ≥ - 2x
Divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity,
- 9 ≤ x , that is
x ≥ - 9
I need some help.......................
Answer:
x=10 , y=20
Step-by-step explanation:
2x=x+10
2x–x=10
x=10
y=2x
y=2(10)
y=20
Find all the missing sides and angles of this triangle.
А
7
B
70°
Show your work for full credit. You are finding the measure of angle A, side length of AC and side
Show Your Work
I
Answer:
A = 20°
AC = 6.6
BC = 2.4
Step-by-step explanation:
Given:
B = 70°
C = right angle = 90°
AB = 7
Required:
A, AC, and BC
Solution:
✔️A = 180 - (90 + 70) (sum of triangle)
A = 20°
✔️Use trigonometric function to find AC:
Refernce angle = 70°
Opp = AC
Hypotenuse = 7
Apply SOH,
sin 70 = Opp/Hyp
sin 70 = AC/7
7 * sin 70 = AC
6.57784835 = AC
AC = 6.6 (nearest tenth)
✔️Use trigonometric function to find Bc:
Refernce angle = 70°
Adj = BC
Hypotenuse = 7
Apply CAH,
cos 70 = Adj/Hyp
cos 70 = BC/7
7 * cos 70 = BC
2.394141 = BC
BC = 2.4 (nearest tenth)
Amy just put new tires on her car. If the wheels have a diameter of 8 inches, about how far does the wheel travel in 2 revolutions?
Answer:
50.24 in
Step-by-step explanation:
this box plot shows information about the marks scored in a test
Answer:
Median : 58
LR : 72-32=40
Range = 86-10=76
help i forgot how to solve this
(i dont want u to give me the answer i want u to tell me how to sovle it)
ayuda, olvidé cómo resolver esto
(No quiero que me des la respuesta, quiero que me digas cómo solucionarlo)
Answer:
A= 1/2 (b1 + b2)h
Step-by-step explanation:
A=area
b1 = base 1
b2 base 2
h = height
b1 = 24. b2= 12, h = 17
Substitute and solve!
Find the slope of the line
Answer:
2/3
Step-by-step explanation:
y2-y1/
x2-x1
2-(-2)/
3--3
4/6=2/3
A car rental company charges a $50 flat fee and an additional $20 per day. A
second company also charges a flat fee plus an additional cost per day. This
table shows the cost to rent a car from the second car company.
Days
Cost
2
$130
4
$160
5
$175
Answer:15
Step-by-step explanation:
Determine the number of terms n :
a 1 = 15, a n = 79, S n = 423
Answer:
The number of terms in the sequence is 9
Step-by-step explanation:
We want to get the number of terms
Mathematically, we have the formula for the sum of terms in an arithmetic sequence as
[tex]sn = \frac{n}{2} (a + 1)[/tex]
a represents the first terms, and i represent the last term
[tex]423 = \frac{n}{2} (15 + 79) \\ \\ 423 \times 2 = 94(n) \\ \\ 94n = 846 \\ \\ n = \frac{846}{94} \\ \\ n = 9[/tex]
I should've studied-
Thank you for the help whoever answer
Answer:
$784
Step-by-step explanation:
Alright so we just need to find the percentage values of the discount and tax
What is 10%?:
x/800 = 10/100
8000 = 100x
x = 80
800 - 10%
800 - 80 = 720
What is 8%?:
x/800 = 8/100
6400 = 100x
x = 64
720 + 8%
720 - 64 = 784
Hope that helps ^^