Step-by-step explanation:
1.
[tex]0 = {x}^{2} - 7x - 18 \\ 0 = {x}^{2} + 2x - 9x - 18 \\ 0 = x(x + 2) - 9(x + 2) \\ 0 = (x + 2)(x - 9) \\ \\ \\ (x + 2) = 0 \: \: \: \: or \: \: \: \: (x - 9) = 0 \\ \\if \: \:x + 2 = 0 \\x = 0 - 2 \\ x = (- 2) \\ \\ if \: \:x - 9 = 0 \\ x = 0 + 9 \\ x = 9 \\ [/tex]
Please help me with this math problem! I will give brainliest!! :)
Line BC is equal to line AD
∴
x + 17 = 3x + 7
x - 3x = 7 - 17
-2x = - 10
-2x / -2 = - 10 / -2
x = 5
AD
3x + 7
3(5) + 7
15 + 7
22
CD
2x - 6
2(5) - 6
10 - 6
4
BC
x + 17
5 + 17
22
AB
Line AB is equal to line CD therefore its length is 4
Answer:
x = 5
AB = 4
BC = 22
CD = 4
AD = 22
please answer!! will give a thanks and brainliest! :)))
8.
Since they have twice as many games won as lost there are 3 parts.
The losing part and the two winning parts.
The winning part is [tex]\frac{2}{3}[/tex] the games while the losing part is [tex]\frac{1}{3}[/tex] the games.
Just multiply [tex]\frac{2}{3}[/tex] by the games played to find the games won.
[tex]\frac{2}{3} (96)=\frac{192}{3} =64[/tex]
The ravens won 64 games.
10.
Make a system of equations.
Let s be the number of skips interviews and w be the number of woodys interviews.
s=w-8
s+w=20
Then just use algebra to rearrange and find each persons interviews.
For this one we can rearrange the second equation to get s=20-w.
Since we have two solutions for s we can set them equal.
w-8=20-w
2w-8=20
2w=28
w=14
Now that we have the number of woodys interviews substitute it into the first equation to get skips interviews.
s=w-8
s=14-8
s=6
So skip had 6 interviews and woody had 14 interviews.
12.
Make a system of equations
y-x=7
x+y=33
Then just use algebra to rearrange and find each amount of items.
Start by solving with substitution. (Elimination could work too im just going to use substitution.)
y-x=7
y=7+x
Substitute into the second equation
x+(7+x)=33
2x+7=33
2x=26
x=13
Now plug this x value back into the first equation
y-13=7
y=20
The number of items on one list is 13 and the number of items on the second list is 20.
plz help me i don’t understand
Answer:
A it wold be pushing 40 newton to the left
B opposite
C subtract
D i don know that one
E unbalanced
Step-by-step explanation:
ANALYZE The surface area of a three-dimensional object is the sum of the area of the faces. If represents the length of the side of a cube, write a formula for the surface area S of the cube.
Step-by-step explanation:
If X represents the length of the side of a cube, the formula for the surface area of the cube, S =?
solution :
the area of each face of the cube = side × side
= X × X = X²
the cube has 6 similar faces, so the surface area of the cube could be:
S = 6 × X² = 6X²
Answer:
Surface Area = 6 × S²
Step-by-step explanation:
the surface area fo the cube :
SA = 6 × lenght × lenghtif lenght = S, the surface area fo the cube :
SA = 6 × lenght × lenght
SA = 6 × S × S
SA = 6 × S²
PLEASE ANSWER I WILL GIVE A THANKS AND BRAINLIEST!!!<3
Answer: I HAVENT FINISHED THIS
Step-by-step explanation:
ILL BE BACK
Answer:
Step-by-step explanation:
Not sure if you're being lazy or something these questions are ridiculously easy...
27) f-3
28) j-9
29) m-10
30) d/2
31) x-17
32) 7/18
33) a. 3-s b. 3+d
34) a. r+5 b. e-5
35) a. g-12 b. b+12
36) a. 12+s b. L-12
You and 3 friends are going to the country fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular price ticket to the fair cost?
Answer:
30$
Step-by-step explanation:
lets assume you didn't have a coupon then the total bill would have been 120$
so for 4 friends including u the bill would have been 120$
: 4 friends = 120 $
for : 1 friend = x$
cross multiply
4x = 120 × 1
4x =120
divide both sides by the coefficient of x
x =120 \ 4
x = 30$
therefore: 1 friend = 30$
In the morning, the temperature was–10°C. By the afternoon, it had risen to–2°C. What was the change in temperature from the morning to the afternoon?To solve the problem, Luke subtracted–2–(–10) and came up with an answer of 8°C. Is Luke correct? Why or why not?
PLEASE HELP ASAP IT'S REALLY IMPORTANT!!!
Answer:
why
Step-by-step explanation:
I thought something happened to you why did u never come back,why just ghost me of all people not only once but twice
hi what's this answer please? -3 1/2 - 1 5/6 =
Answer:
12
Step-by-step explanation:
-31*6 - 15*2
2*6
= -186 - 30
12
= -216
12
Answer = -216
12
Hope it helped
Answer:
- 5 [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
- 3 [tex]\frac{1}{2}[/tex] - 1 [tex]\frac{5}{6}[/tex] ( change to improper fractions )
= - [tex]\frac{7}{2}[/tex] - [tex]\frac{11}{6}[/tex] ( multiply numerator/denominator of first fraction by 3 )
= - [tex]\frac{7(3)}{2(3)}[/tex] - [tex]\frac{11}{6}[/tex]
= - [tex]\frac{21}{6}[/tex] - [tex]\frac{11}{6}[/tex]
= [tex]\frac{-21-11}{6}[/tex]
= [tex]\frac{-32}{6}[/tex]
= - [tex]\frac{32}{6}[/tex]
= - 5 [tex]\frac{2}{6}[/tex]
= - 5 [tex]\frac{1}{3}[/tex]
what is 15% of $8.00
Answer:
15% of $8.00 is: $1.20
Step-by-step explanation:
Hope this helps :)
Pls mark as brainliest <3
0.884743701 British pounds and 1.2 US$
the face of a clock has a circumference of 62.8 in. What is the area of the face of the clock.
Answer:
3 943.84π
Step-by-step explanation:
tienes que usar la fórmula de: pi por radio al cuadrado
Answer:
[tex]314in^{2}[/tex]
Step-by-step explanation:
Circumference is [tex]2\pi r[/tex]
Find your radius
[tex]2\pi r=62.8\\\pi r=31.4\\[/tex]
Let [tex]\pi =3.14[/tex] for simplicity
r=[tex]\frac{31.4}{3.14}[/tex]=10
Now use the equation for the area of a circle to find the area of the clock face.
Area of a circle is [tex]\pi r^{2}[/tex]
Area of clock face is [tex]\pi (10^{2} )[/tex]
=[tex]100\pi[/tex]
=[tex]314in^{2}[/tex]
[tex]4,\pi ,8[/tex] how do i order from least to greatest
Answer:
[tex] \pi \: 4 \: 8[/tex]
Answer:
[tex]\pi, 4, 8[/tex]
Step-by-step explanation:
Note that [tex]\pi\approx3.14[/tex]. As [tex]3<3.14<4[/tex], [tex]\pi[/tex] comes before [tex]4[/tex].
Clearly [tex]4<8[/tex], so [tex]4[/tex] comes before [tex]8[/tex].
The only possible ordering is [tex]\boxed{\pi, 4, 8}[/tex]
How do division properties help you evaluate expressions?
Drag a word or number to the box to correctly complete the statement.
When the of a fraction is equal to Response area and the numerator is nonzero, the value of the fraction is equal to the numerator of the fraction.
Answer: denominator and 1
Step-by-step explanation: took k12 test
Please help me this is due please help
Answer:
each person pays $21.04
Step-by-step explanation:
105.20/5=21.04
Answer:
$21.04
Step-by-step explanation:
U just divide the amount of money by 5. (im pretty sure thats all u do)
i just need help with number 2, i don’t understand
Step-by-step explanation:
Assuming c = x, you would substitute 2{(5)^(5)} - 6,
5^5 = 25,
2(25) = 50,
50 - 6 = 44
Answer would be 44, but only if c = x
Find the next 3 terms of the sequence below:
seventeen is less than twice the sum of a number and three
Answer:
no it would be more
Step-by-step explanation:
3+3=6 so not 17 at all
Answer:
x > 17/2 - 3
Step-by-step explanation:
17 < 2(x+3)
17/2 < x+3
17/2 - 3 < x
Explain in your own words the meaning of equivalent
ratios.
Answer:Equivalent ratios are ratios that make the same comparison of numbers. Two ratios are equivalent if one can be expressed as a multiple of the other.
Answer:
ratios that make the same comparison of numbers
Step-by-step explanation:
i hope thats good for u
Subtraction of integers
-70 --25 =
Answer:
-45
Step-by-step explanation:
-70 --25
-×-=+
-70 +25
-45
The diagonal of a rectangle is 25in. The width is 15 in. What is the area of the rectangle
Answer:
10
Step-by-step explanation:
Which of the following equations represents a line that passes through the points (-10, -9)(−10,−9) and (10,-1)(10,−1)?
I. y+1=-\frac{2}{5}(x-10)y+1=−
5
2
(x−10)
II. 2x-5y=252x−5y=25
Answer:
y = 2/5x - 5
Step-by-step explanation:
(-10,-9) and (10,-1)
Slope: (-1 - - 9) / ( 10 - - 10)
Slope = 8/20 = 2/5
b = -9 - (2/5(10)
b = -5
The equation of the line that passes through the point (−10,−9) and (10,-1) is; y = 2/5x - 5
What is the Point-slope form?The equation of the straight line has its slope and given point.
If we have a non-vertical line that passes through any point(x1, y1) and has a gradient m. then general point (x, y) must satisfy the equation
y-y₁ = m(x-x₁)
Where x₁ - x coordinate, y₁ - y coordinate, m - slope
Slope: (-1 - - 9) / ( 10 - - 10)
m = Slope = 8/20 = 2/5
Now intercept;
b = -9 - (2/5(10)
b = -5
Now Write the equation as
y = 2/5x - 5
Hence, the equation of the line that passes through the point (−10,−9) and (10,-1) is; y = 2/5x - 5
Learn more about equations here;
brainly.com/question/25180086
#SPJ2
is 16/6 a rational numer
NO LINKS!!!!!!!!!!!!
Answer:
this is the answer thanks mark me as brainlist
swine flu is attacking the north pole. the function below determines how many elves have swine flu where t=time in days and S= the number of people in thousands.
S(t)=9t - 4. find S(4)
Answer:
S(4) = 32
Step-by-step explanation:
Work on photo !
write an equation of the line that has each pair of intercepts
x-intercept: 6 y-intercept: 3
Answer: y = 6x+3
Step-by-step explanation:
5. Which digital construction tool does the same job as a compass?
A. Point
B. Line
C. Polygon
D. Circle with center through point
Solve for n.
3 ( n + 5 ) ≥ 3 n + 8
Answer:
[tex]3(n + 5) \geqslant 3n + 8 \\ 3n + 3 \times5 \geqslant 3n + 8 \\ 3n + 15 \geqslant 3n + 8 \\ 3n - 3n \geqslant 8 - 15 \\ 0n \geqslant - 7 \\ no \: solution \\ thank \: you[/tex]
Answer:
[tex]7 \geqslant 0 \: \: \: \: or \: \: \: \: 0 \leqslant 7 \\ [/tex]
Step-by-step explanation:
[tex]3(n + 5) \geqslant 3n + 8 \\ 3n + 15 \geqslant 3n + 8 \\15 - 8 \geqslant 3n - 3n \\ 7 \geqslant0 \\ [/tex]
Please help. I don't know the answer
Answer:
The answer is 3x+4y<-12
Step-by-step explanation:
Could someone please help me answer this, please no spam, will give brainliest, thank you! (homework help)
Answer:
b<-1
Step-by-step explanation:
-3b-2>1
add 2 on both sides
-3b>3
divide both sides by -3
b<-1
What is the rounded number when 4 872 is rounded to the nearest hundred?