what are the zeros of (2x+5)(x-6) ?
Answer:
x=-5/6 , 6
Step-by-step explanation:
Marcus has a summer job where he makes $45 a day. Yesterday, his boss told him that he was getting a raise to $63 a day because he was such a hard worker. What is the percent increase in Marcus’ salary?
Answer: 40%
Step-by-step explanation:
Add.
(-g³ - 8g² + 8g - 5) + (-3g² - 3)
Answer:
[tex]- g^{3}[/tex] - [tex]11g^{2}[/tex] + [tex]8g[/tex] - [tex]8[/tex]
Step-by-step explanation:
Explain how to simplify the rational expression x2 - 2x -89x2 - 16x2 - 163x2 + 10 x + 8. (be sure to include the simplified rational expression)
Answer:
267x2 -8x -8 where
x=- 4± 2√ 538/267
Step-by-step explanation:
x2 - 2x -89x2 - 16x2 - 163x2 + 10 x + 8
= x2 -89x2 - 16x2 - 163x2 - 2x+ 10 x + 8
= -267x2+8x +8
= 267x2 -8x -8
First the like terms are arranged and then added . All the co efficients of x2 are added and x are added separately.
Using the quadratic equation to find the value of x
a= 267 , b= -8 and c= -8
x= -b±√b²- 4ac/ 2a
x= -8±√64 +8544/534
x= -8±√8608/534
x=-8±√ 2 x 2 x 2 x 2 x 2 x 269/534
x=-8± 4√ 2 x 269/534
x=- 4± 2√ 2 x 269/267
x=- 4± 2√ 538/267
Write the equation of the line in slope- intercept form
Answer:
y=8x+1
Step-by-step explanation:
y=mx+b
m=rise/run=(8)/(1)=8
y=8x+b
b is the y-intercept
y=8x+1
Please help ASAP (NO LINKS)
An import business owner paid $6000 for the goods sold in one month. Her additional expenses are $1600 per month. If she marks up her merchandise 70%, what was her profit for the month?
Answer:
the answer is $2,600 I belive so
Jason is installing new carpet In a room. The dimensions of the room are shown in the diagram.
12 ft
20 ft
30 ft
20 ft
10 ft
32 ft
What is the area of the floor?
Answer:
46080000
I think you didnt give the dimensions right so I had to get them
What is the main difference between a square and a rhombus?
A.
A rhombus has 4 right angles, and a square does not.
B.
A square must have 4 right angles, but a rhombus may or may not have 4 right angles.
C.
A square has sides that are parallel, but a rhombus does not.
D.
A rhombus is always bigger than a square.
Answer:
B. a square must have 4 right angles, but a rhombus may or not have 4 right angles.
Answer:
B
Step-by-step explanation:
The main difference between a square and a rhombus is a square must have 4 right angles, but a rhombus may or may not have 4 right angles. All the angles of a square have to be 90 degrees. All right angles are 90 degrees. All squares are rhombuses, but not all rhombuses are squares. There are occasions when a rhombus has 4 right angles.
Please help with Volume
Given:
Length of the cuboid tank = 4 m
Breadth = 2.5 m
Height = 2.4 m
One third of the tank is filled with water.
1 cubic meter = 1000 liters.
To find:
The quantity of the water in the tank.
Solution:
Volume of a cuboid is:
[tex]V=l\times b\times h[/tex]
Where, l is length, b is breadth and h is the height.
The volume of the tank is :
[tex]V=4\times 2.5\times 2.4[/tex]
[tex]V=24[/tex]
Volume of tank is 24 cubic meter.
One third of the tank is filled with water. So, the volume of the water is
[tex]\dfrac{24}{3}=8[/tex]
The volume of water is 8 cubic meters.
We have,
1 cubic meter = 1000 liters.
8 cubic meter = 8000 liters.
Therefore, the quantity of the water in the tank is 8000 liters.
Please helpp ASAP
Extra 100 point and brainleist
Answer:
Ive done those before the first one is 7 and the second one is 4
Step-by-step explanation:
Completing the square Acellus please help! x^2 + 10x -y + 15 = 0
Thank you!!
Step-by-step explanation:
y-15=x^2+10x
y-15+25=x^2+10x+25
y+10=(x+5)^2
In a competition of 50 professional ballroom dancers, 22 competed in the fox-trot competition, 18 competed in the tango competition, and 10 competed in both the fox-trot and tango competitions. How many dancers competed in either the foxtrot or tango competitions?
Evaluate -2(|2|-(-3)(-4))
I need emergency help if you help I’ll be soo happy :) plsss
Answer:
900 square feet :)
Step-by-step explanation:
plz give brainliest
Heya!
[tex] \underline{ \underline{ \bf{Question}}}: [/tex] In the given figure , ABC is a triangle in which AB = AC. Also a circle passing through B and C intersects the sides AB and AC at the points D and E respectively. Prove that AD = AE.
~Thanks in advance! :)
Answer:
See Below.
Step-by-step explanation:
We are given that ABC is a triangle in which AB = AC.
A circle passing through B and C also intersects the sides AB and AC at points D and E respectively.
And we want to prove that AD = AE.
By the secant-secant theorem (shown below), we know that:
[tex]AD(AB)=AE(AC)[/tex]
We are given that AB = AC. So, by substitution:
[tex]AD(AB)=AE(AB)[/tex]
And by dividing both sides by AB (AB ≠ 0), we acquire:
[tex]AD=AE[/tex]
Q.E.D.
Please help I really need help
Answer:
-23
Step-by-step explanation:
16 x 1/4^2 - 4 x 6 = -23
For which of the following is x = -5 a solution? Select all that apply.
Answer:
Options 2, 3, 4, 5 are the solutions.
Step-by-step explanation:
Option 1).
x + 10 = -5
x = -10 - 5
x = -15
Therefore, x = -5 is not the solution.
Option 2).
-x² + 50 = 25
-x² = 25 - 50
-x² = -25
x² = 25
x = ±5
Therefore, x = -5 is a solution
Option (3)
|2x| = 10
2x = ± 10
x = ± 5
Therefore, x = -5 is a solution.
Option (4)
x < 0
Since, -5 < 0
Therefore, x = -5 is a solution.
Option (5)
2x < 10
x < 5
Since, -5 < 5
Therefore, x = -5 is a solution.
Options 2, 3, 4, 5 are the solutions.
first to answer these 2 questions correctly gets brainleist ! i will give 12 points :)
Answer:
5. a) 96ft²
6. c) 144ft²
Step-by-step explanation:
"All real numbers" could be used to describe the x-
values of the graph? A. False b.true
Answer:
True
Step-by-step explanation:
Brainliest?
Sarah is finding the surface area of a cube. Find the surface area of the cube with dimensions of 8 cm each
Answer:
384 cm^2
Step-by-step explanation:
A = 6a^2 (a = side length)
A = 6(8^2)
A = 6(64)
A = 384 cm^2
More explain stuff:
a^2 is what is used to find the area of a 2 dimensional square. You can also use a · a. Remember, a = side length. Since there are 6 sides/faces in a cube, you multiply the area of each face by 6. :D
Read the problem. 10% of the students at Harris Middle School are on the yearbook committee. If 30 students are on the yearbook committee, how many students are at Harris Middle School? Pick the model that represents the problem. How many students are at Harris Middle School?
Answer:
100%
300 students
Step-by-step explanation:
let b = number of students in the school
this equation can be derived = 10% x b = 30
to find b, divide both sides of the equation by 10%
b = 30/0.1 = 300
we want find the total number of students in the school, which is equal to 100%
Using the line AB, name two line segments.
1. AB, CB
2. AB, C
3. CB, B
4. A, B
My brain refuses to work because I can only think of Diagon Alley
Answer:
30 cm
Step-by-step explanation:
1. Given the length, width and tallness discover the volume, surface region and inclining of a rectangular crystal
h, l and w are known; discover V, S and d
V = lwh
S = 2(lw + lh + wh)
d = √(l2 + w2 + h2)
2. Given the surface region, length and width discover the tallness, volume and askew of a rectangular crystal
S, l and w are known; discover h, V and d
h = (S - 2lw)/(2l + 2w)
V = lwh
d = √(l2 + w2 + h2)
3. Given the volume, length and width discover the stature, surface territory, and slanting of a rectangular crystal
V, l and w are known; discover h, S and d
h = V/lw
S = 2(lw + lh + wh)
d = √(l2 + w2 + h2)
4. Given the inclining, length and width discover the tallness, volume and surface space of a rectangular crystal
d, l and w are known; discover h, V and S
h = √(d2 - l2 - w2)
V = lwh
S = 2(lw + lh + wh)
If 2% of a number equals 9, find 4% of that number.
Answer:
18
Step-by-step explanation:
The number you are getting the percent from is 450
What is the scale factor of the dilation of ABCD centered at the origin?
Answer:
The anwser is -1/2
Step-by-step explanation:
A trick i personally learned is that is you are shrinking then it will turn up as a fraction, but make sure that fraction is not an improper fraction and if the dialation does get bigger it will be a whole number or improper fraction.
Someone help me on these two problems pleaseee ASAPP
Answer:
left side = 23.7
right side = 3.6
Step-by-step explanation:
Find the volume of the figure please.
Answer:
volume=90 sq m
Step-by-step explanation:
v=Ab×h
v=1/2(10)(3.6)×5
v=90 sq
hope it helps
I thought I lost my account
Anyways, who made pythagorean theorem
Answer: Nevertheless, the theorem came to be credited to Pythagoras. It is also proposition number 47 from Book I of Euclid's Elements. According to the Syrian historian Iamblichus (c. 250–330 ce), Pythagoras was introduced to mathematics by Thales of Miletus and his pupil Anaximander.
Step-by-step explanation:
Multiply polynomials #3
Multiplying the two together, you get an equation such as
-6x^4 - 12x^3 +33x^2 +12x -27.
Answer:
-6x^4-12x^3+33x^2+12x-27
Step-by-step explanation:
someone pls help !! geometry problemmm