Answer:
x^2 + 4x + 3
Step-by-step explanation:
divide everything by 3
Emily made $12.50 selling lemonade for 2 hours. If Emily wants to save $100, approximately how many hours would she need to sell lemonade?
Answer:
she needs to work 16 hours
HELP ! In right triangle RST, measure of angle S = 90° and measure of angle R ≠ measure of angle T. If cos(R) = a and sin(R) = b, which is equal to cos(T)/sin(T)?
The choices are
a+b
a-b
b-a
ab
a/b
b/a
7a+3b=27
6a+3b=24
Solve in simultaneous
A=
B=
Answer:
A= 3,B = 2
Hope it helps you
if yes mark me brainliest
Answer:
hence, a = 3
b = 2
Step-by-step explanation:
from the given pair of linear equation we get,
7a + 3b = 27 - ( 1 )
6a + 3b = 24 - ( 2 )
now, subtract equation 2 from equation 1
=》7a + 3b - 6a - 3b = 27 - 24
=》a = 3
now put the value of a in equation 1
=》7a + 3b = 27
=》( 7 × 3 ) + 3b = 27
=》21 + 3b = 27
=》3b = 27 - 21
=》b = 6 ÷ 3
=》b = 2
One month Isabel rented 5 movies and 2 video games for a total of $18. The next month she rented 3 movies and 8 video games for a total of $55. Find the
rental cost for each movie and each video game.
X
?
Rental cost for each movie: $[]
Rental cost for each video game: s]
Answer:
video=$6.5
moive=$1
Step-by-step explanation:
5m+2v=18, 3m+8v=55
5m+2v=18
2v=18-5m
v=9-2.5m
plug (v=9-2.5m) in (3m+8v=55)
3m+8v=55
3m+8(9-2.5m)=55
3m+72-20=55
-17m=-17
m=1
plug (m=1) in (v=9-2.5m)
v=9-2.5m
v=9-2.5*1
v=6.5
Give brillianst please!!!!!!
Find the simple Interest
I=?
P=$1300
R= 5%
T=6 years
$390
$1690
O $39000
i need help...
Answer:
$390 is the correct answer
Answer:
390
Step-by-step explanation:
(1300)(.05)(6) = 390
What is the number which is one third as big as n
Put the following equation of a line into slope-intercept form, simplifying all fractions.
Answer:
[tex]4x+6y=-30\\\\6y=-4x-30\\\\y=\frac{-4x}{6} -\frac{30}{6} \\\\ y=\frac{-2}{3} x-5[/tex]
Step-by-step explanation:
I hope this helps
have a nice day!! :)
what is the area of the triangle
Answer:
4 units²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A= [tex]\frac{1}2}[/tex] bh ( b is the base and h the perpendicular height )
Here b = 4 and h = 2 , then
A = [tex]\frac{1}{2}[/tex] × 4 × 2 = 2 × 2 = 4 units²
A plot of land is 25 feet in length and 20 feet wide, and it is in the shape of a parallelogram. The perpendicular distance from the long side to the opposite long side is 18 feet. What is the area of the piece of land?
Given:
Length of the parallelogram = 25 feet
Width of the parallelogram = 20 feet
Perpendicular distance from the long side to the opposite long side = 18 feet.
To find:
The area of the piece of land which is a parallelogram.
Solution:
Area of a parallelogram:
[tex]Area=Base\times height[/tex]
Let the longer side, 25 feet is the base, then the height of the parallelogram is 18 feet. So, the area of the parallelogram is
[tex]Area=25\times 18[/tex]
[tex]Area=450[/tex]
Therefore, the area of the piece of land is 450 square feet.
2. A spelunker is down in a cave next to the cliff. If she
climbs down deeper into the cave, this will be a
negative change. If she climbs up, whether inside the
cave or out of the cave and up the cliff, this will be a
positive change.
Complete the table.
starting
elevation
(feet)
change
(feet)
final
elevation
(feet)
Correct?
А
- 200
150 down
-350
B
- 200
100 up
-100
С
-200
200 up
0
x < < < <
D
-200
250 up
50
E
200
500
Determine a relationship between the x- and y-values. Write an equation x:1, 2, 3, 4 y:-2, -4, -6, -8
Answer:
y = 2x + 0
Step-by-step explanation:
Using a linear relationship calculator, where ;
X ____ Y
1 ____ - 2
2 ___ - 4
3 ___ - 6
4 ___ - 8
The equation of line of best fit obtained is :
y = 2x + 0 ;
Where
slope = 2 ; intercept = 0
1) The region enclosed by the x-axis, the line x=3 and the curve y = sq. Rt x is rotated about the x-axis. What is the volume of the solid generated? *
Using the disk method, the volume would be
[tex]\displaystyle \pi \int_0^3 (\sqrt x)^2 \,\mathrm dx=\pi \int_0^3 x\,\mathrm dx=\frac\pi2 x^2\bigg|_0^3=\boxed{\frac{9\pi}2}[/tex]
That is, you split up the solid into disks of some small height ∆x, and each disk has radius at point x equal to the distance (√(x)) from the axis of revolution (the x-axis, y = 0) to the curve y = √(x). The volume of such a disk is then π (√(x))² ∆x. Take the sum of these volumes to get the total volume, then as the heights get smaller and smaller, replace ∆x with dx and the sum with the integral.
In this exercise we have to use the knowledge of the integral to calculate the volume of the disk that will correspond to:
[tex]V= \frac{9\pi }{2}[/tex]
That is, you split up the solid into disks of some small height ∆x, and each disk has radius at point x equal to the distance (√(x)) from the axis of revolution (the x-axis, y = 0) to the curve y = √(x). The volume of such a disk is then π (√(x))² ∆x. Take the sum of these volumes to get the total volume, then as the heights get smaller and smaller, replace ∆x with dx and the sum with the integral. Using the disk method, the volume would be:
[tex]\pi \int\limits^3_0 {(\sqrt{x})^2} \, dx = \pi \int\limits^3_0 {x} \, dx = \frac{\pi x^2}{2} = \frac{9 \pi }{2}[/tex]
See more about volume at brainly.com/question/1578538
Which value of h make the equation true?
2.3 + h = 7.8
Answer:
h = 5.5
Step-by-step explanation:
2.3 + h = 7.8
-2.3 -2.3
h = 5. 5
Factorize (4y-5)²+80y
Answer:
16y^2+40y+25
Step-by-step explanation:
[tex] {16y}^{2} + 40y + 25[/tex]
Step-by-step explanation:
(4y−5)^2+80y
Use binomial theorem (a−b)^2=a^2−2ab+b^2 to expand (4y−5)^2.
16y^2−40y+25+80y
Combine −40y and 80y to get 40y.
16y^2+40y+25
i’ll mark the brainliest for the correct answer, please just help me
Answer:
B, A.
Step-by-step explanation:
Answer this for me please!
In UVW, the measure of W=90°, VW = 29 feet, and UV = 69 feet. Find the
measure of ZU to the nearest degree.
Answer: 25°
Step-by-step explanation: deltamath
Can anybody help me with this question i really need help on
Answer: 4
Step-by-step explanation:
10 x 4 = 40
11 x4 = 44
18 x 4 = 72
analisis School 4 out of 10 students choose basketball as a sport like to watch and three out of five students choose football is the ratio of students who choose basketball for 2 to 10 equivalent to the ratio of students who chose football 3 to 25. Yes or No
Answer:
Pos sabe aaaaaaaaaaaaaaaaaaaaaaaa
A ladder leaning against a wall makes a 60° angle with the ground. The base of the ladder is 3 m from the building. How high above the ground is the top of the ladder?
Answer:
The distance is 5.20m
Step-by-step explanation:
Here, we want to get the height of the ladder
To get this, we need to understand that we have a right triangle, with the base of the triangle as 3 m, the angle at the downward part is 60, and we want to get the height of the triangle
The angle here faces the height we want to calculate
This height is known as the opposite
What we have is the adjacent
Now, the trigonometric identity that relates the opposite and the adjacent is the tan
The tangent of an angle is the ratio of the opposite to the adjacent
Mathematically;
tan 60 = h/3
h = 3 tan 60
h = 5.20 m
The ladder is at a height of 5.20 m above the ground
Write the equation of each line in slope-intercept form and identify the slope. 4x=2+y
Answer:
y = 4x - 2
Step-by-step explanation:
Given: 4x=2+y
First, subtract 2 on both sides to isolate out y. (Slope-intercept form is y=mx+b)
Once subtracted, you get: 4x-2=y
Rearrange it, and you get: y=4x-2
i need help with this question can anyone please help me
Mr.Richardson would like to build a planter surrounded by a brick path (shown in gray). How many square feet of brick does Mr.Richardson need?
Answer:
128 square feet
Step-by-step explanation:
Horizontal Gray parts:
12 - 8 = 4 ÷ 2 = 2
2 * 24 = 48 * 2 = 96
Vertical gray parts:
24 - 20 = 4 ÷ 2 = 2
2 * 8 = 16 * 2 = 32
All together:
96 + 32 = 128 square feet
Help I will Give Brainliest if Correct!
Answer:
8.5 units
Step-by-step explanation:
(-1, 1) squared + (7,4) squared = formula
Distance 8.5 is rounded to the nearest 10
A motor cyclist makes a trip of 500km. If he had increased his speed by 10kmh-1, he could have covered 600km in the same time. What was the original speed?
Answer:
the original speed is 50 km/h
Step-by-step explanation:
Let us assume the original speed be x
and fastest speed be (x+ 10)
Now here apply the time formula
i.e. distance by the speed
Original time = Fastest time
500 ÷ x = 600 ÷ x + 10
Now do cross multiplication
600x = 500(x + 10)
600x = 500x + 5000
100x = 5000
x = 50 km/h
Hence, the original speed is 50 km/h
What's the area and the perimeter of rectangle ABDC shown in the coordinate plane?
Question 2 options:
A)
Area = 32 square units; perimeter = 24 units
B)
Area = 24 units; perimeter = 32 square units
C)
Area = 24 square units; perimeter = 32 units
D)
Area = 32 units; perimeter = 24 square units
Determine if the two triangles are congruent. If they are, state how you know.
Answer:
d) AAS
Step-by-step explanation:
The angles shared where the triangles share a vertex are equal. Thus Angle-Angle-Side proves congruency.
67% of what is 119.2?
Step-by-step explanation:
[tex] \frac{67}{100} \times x = 119.2 \\ x = \frac{11920}{67} = 117.9 = 178[/tex]
Sargento cheese slices $2.48 for 10 slices or Velveeta cheese slices $3.18 for 12 slices find the unit rate for each and choose the better deal.
Answer:
Sargento cheese slices are the better deal
Sargento cheese slices $2.48 for 10 slices = 0.248 per slice
Velveeta cheese slices $3.18 for 12 slices = 0.265 per slice
Step-by-step explanation:
The unit rate for each cheese slice is $0.24 per piece for Sargento cheese slices and for Velveeta cheese slices is $0.26, and Sargento cheese slices is the better deal.
Given that,
Sargento cheese slices $2.48 for 10 slices or Velveeta cheese slices $3.18 for 12 slices.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
According to the question,
Sargento cheese slices, unit rate = 2.48/10 = $0.24
Velveeta cheese slices , unit rate = 3.18/12 = $0.26
From above Sargento cheese slices, is cheaper than Velveeta cheese slices.
Thus, the unit rate for each cheese slice is $0.24 per piece for Sargento cheese slices and for Velveeta cheese slices is $0.26, and Sargento cheese slices is the better deal.
Learn more about simplification here:
https://brainly.com/question/12501526
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Can someone help me with this. Will Mark brainliest.
Answer:
(in degrees)
x = 15.09478709
Step-by-step explanation:
sin(x) = 25/96