Answer:
y = -1/2x - 8
Step-by-step explanation:
y = mx + b
y = -1/2x - 8
Find the slope of the line that passes through (20, -37) and (68, -56).
i believe it would be -19/48
Look at the figures. How can you prove the triangles are congruent?
is it
A) ABC= DEF by the SAS postulate
B) It is not possible to determine if the triangles are congruent
C) ABC = DEF by the SSS postulate
Answer:
SAS
Step-by-step explanation:
AB ≅ DE Given
AC ≅ DE Given
∠ A and ∠B are right angles Given
∠A ≅ ∠B All right angles are ≅
help please!!!!!!!!!!
Answer:
k
Step-by-step explanation:
Directions: Evaluate the rational algebraic expressions. Write your answer on your answer sheet. 1. 57 39 4. 2. tryti ;y=-2 ya-1 3. 3-42222 22-58+6 32%3D-3
Rational algebraic expressions are expressions that can be represented as a quotient of two polynomials.
The result of the expressions are:
[tex]\mathbf{\frac{5x}{3x - 9} = \frac{20}{3}}[/tex]
[tex]\mathbf{\frac{y^2 + 4y + 1}{y^2- 1} = -1}[/tex]
[tex]\mathbf{(a)\ \frac{5x}{3x - 9};\ x = 4}[/tex]
First, we substitute 4 for x
[tex]\mathbf{\frac{5x}{3x - 9} = \frac{5 \times 4}{3 \times 4 - 9}}[/tex]
Evaluate all products
[tex]\mathbf{\frac{5x}{3x - 9} = \frac{20}{12 - 9}}[/tex]
Subtract
[tex]\mathbf{\frac{5x}{3x - 9} = \frac{20}{3}}[/tex]
[tex]\mathbf{(b)\ \frac{y^2 + 4y + 1}{y^2- 1};\ y =-2}[/tex]
First, we substitute -2 for y
[tex]\mathbf{\frac{y^2 + 4y + 1}{y^2- 1} = \frac{(-2)^2 + 4 \times (-2) + 1}{(-2)^2- 1}}[/tex]
Evaluate all products and exponents
[tex]\mathbf{\frac{y^2 + 4y + 1}{y^2- 1} = \frac{4 -8 + 1}{4- 1}}[/tex]
Subtract
[tex]\mathbf{\frac{y^2 + 4y + 1}{y^2- 1} = \frac{-3}{3}}[/tex]
[tex]\mathbf{\frac{y^2 + 4y + 1}{y^2- 1} = -1}[/tex]
Read more about rational algebraic expressions at:
https://brainly.com/question/21511236
Let f(x)=8x−6. What is the value of f(12)?
Answer:
f(12) = 90
Step-by-step explanation:
This is more of a notation problem than anything else.
The x on the left means that the variable is x. That sounds weird I know, but it starts out this way.
f(variable) = 8*variable - 6
Where you see the word variable, you put the letter x and that gives you the question.
f(x) = 8*x - 6
That is math shorthand for whatever you see on the left, like an x or in this case 12, you put the value 12 in for x on the right. It will look like this.
f(12) = 8*12 - 6 Now it just becomes a calculator problem.
f(12) = 96 - 6
f(12) = 90
Line / is a straight line. What is the measure of ZX?
X°60°
Answer:
100
A line segment is 180 and if one side of the line is 80 then the other half has to be 100
Step-by-step explanation:
what is the sum of the prime numbers of 420 do not repeat any prime factors A 15 B 16 C.17 D. 18 E. 19
Answer:
C)
Step-by-step explanation:
Prime factorization of 420 = 2 × 2 × 3 × 5 × 7 = 22 × 3 × 5 × 7.
If you take...
2 + 2 + 3 + 5 + 7...
You would get 17.
Hope this helps! :) Good Luck!
-kiniwih426
PLEASE HELP QUICK :) multiple choice.
Which of the following functions has a factor of x + 9 ?
A: f (x) = x^3 - 8x^2 - 11x + 18
B: f (x) = x^3 + 10x^2 + 7x - 27
C: f (x) x^3 + 10x^2 + 7x - 18
D: f (x) = x^3 - 8x^2 - 11x + 27
Answer:
C. f(x) = x³ + 10x² + 7x - 18Step-by-step explanation:
If the function has a factor of x + 9, then the function will have a zero output at x = -9
Lets verify:
A. f(-9) = (-9)³ - 8*(-9)² - 11*(-9) + 18 = -1260, NoB. f(-9) = (-9)³ + 10*(-9)² + 7*(-9) - 27 = -9, NoC. f(-9) = (-9)³ + 10*(-9)² + 7*(-9) - 18 = 0, YesD. f(-9) = (-9)³ - 8*(-9)² + 11*(-9) + 27 = -1449, NoIT'S HOMEWORK WHOEVER GIVES ME A GOOD ANSWER I WILL MAKE BRAINLIST. For spirit week at the local high school, students were encouraged to wear their school colors of green and white. 1,200 students wore their school colors while 300 students did not wear their school colors. what is the ratio? write and solve a proportion with ration language.
Answer:
1200:300
4:1 is the final ratio
Write and solve an inequality that represents the values of x, in feet.
The perimeter is less than 16 feet.
Answer:
x < 16 ft
Step-by-step explanation:
Perimeter = x
If it is less than 16, the equation is:
x < 16
-Chetan K
help please i need it with explanation
Answer:
10. x = -23
Step-by-step explanation:
-3.8x - 5.9x = 223.1
-9.7x = 223.1 (-3.8 minus 5.9)
x = -23 (223.1 divided by -9.7)
Answer:
12. x = 70
Step-by-step explanation:
(-3/5)x - (7/10)x + (1/2)x = -56
-(4/5)x = -56 ( -3/5 minus 7/10 plus 1/2)
x = 70 (-56 divided by -4/5)
Collin spent $34 on a new video game. How much money does he need to earn in order to have a net change of $0?
Barry buys a new washing machine.
The value of the washing machine depreciates by 20% each year.
(a)
Barry says 'after 5 years the washing machine will have no value'.
Barry is wrong. Explain why.
Barry wants to work out the value of the machine after 2 years.
(b)
By what single decimal number should Barry multiply the value of the machine when new?
Answer:
The machine decreases in value by 20% each year.
After 1 year the machine is worth only .8 of its original value.
The machine will only decrease by .2 * (.8 A) in the second year not .2 * A where A is the original amount.
A1 = .8 A
A2 = .8 A1 = .64 A value of machine after 2 years
.8 is the value Barry needs when the machine is new
.8^n never goes to zero
After 10 years value = .8^10 A = .11 A of its original value
Write the value of
[tex]1 - 2 \cos {}^{2} c[/tex]
Step-by-step explanation:
1-2cos²c.
> (cos²c+sin²c)-2cos²c. (cos²c+sin²c=1)
> cos²c+sin²c-2cos²c
> sin²c-cos²c.
is your correct answer.
hope this helps you.
Help me :( please help me
Answer:
22.84, 5.83
Step-by-step explanation:
Pythagoras theorem states that: a^2+b^2=c^2
So, for red triangle, it will be: 9^2+21^2=b^2
81+441=b^2
522=b^2
square root of 522=b
22.84=b
For purple one,
3^2+5^2=a^2
9+25=a^2
34=a^2
square root of 34=a
5.83=a
solve 10x-3(x-7)=x+39
Answer:
[tex]10x-3\left(x-7\right)=x+39[/tex]
[tex]-3\left(x-7\right)[/tex]
[tex]-3x+21[/tex]
[tex]10x-3x+21=x+39[/tex]
** Combine like terms ↓ **
[tex]10x-3x=7x[/tex]
** Subtract 21 from both sides ↓**
[tex]7x+21-21=x+39-21[/tex]
[tex]7x=x+18[/tex]
** Subtract x from both sides ↓ **
[tex]7x-x=x+18-x[/tex]
[tex]6x=18[/tex]
**Divide both sides by 6 ↓*
[tex]\cfrac{6x}{6}=\cfrac{18}{6}[/tex]
[tex]x=3[/tex]
Compare the two expressions using an inequality symbol.PLSSSSS HELP 100 PTS
8×(−2)−(−4)2□ 36÷9+2×5
8
×
(
-
2
)
-
(
-
4
)
□
36
÷
9
+
2
×
5
Question 2 options:
=
>
Answer:
<
Step-by-step explanation:
8x-2 - -4x2< 4+10
-16+8<4+10
-8<14
9514 1404 393
Answer:
8×(−2)−(−4)^2 < 36÷9+2×5
Step-by-step explanation:
The left side expression evaluates as ...
8×(−2)−(−4)^2
= 8×(−2) − 16
= -16 -16
= -32
__
The right side expression evaluates as ...
36÷9+2×5
= 4 + 10
= 14
__
It should be no mystery that any negative number is less than any positive number:
-32 < 14
8×(−2)−(−4)^2 < 36÷9+2×5 . . . . . . . . "less than" symbol is required
(1.5x10^-5)+(3.5x10^-2) what is this written in scientific notation??
Answer:
0.035015x
Step-by-step explanation:
please help due today NO LINKS WILL REPORT
Answer:
Step-by-step explanation:
i think that the answer is a, because the def of natural numbers match's and there all integers.
need help pwease...
:D
Answer: 3/15 - 1/15 = 4/15
Step-by-step explanation: (I'm not 100% sure this is correct lol)
Answer:
3/5 - 1/3 = 9/15 - 5/15 =4/15Step-by-step explanation:
3/5 - 1/3
times the bottom two by eachother so they become 3/15 and 1/15
but since you times the bottome you have to times the top so it becomes
9/15 - 5/15 = 4/15
match the inequality with its graph
Two opposite angles of a parallelogram are always
Answer:
Two opposite angles of a parallelogram are always equal.
Work out the area of trapezium ABDE
Answer:
Use corresponding triangles to get CE value.
[tex] \frac{8}{6} = \frac{ce}{9} [/tex]
CE = 12 cm
Then
DE= 12-8 = 4 cm
To calculate the area,
[tex]( \frac{9 + 6}{2} ) \times 4[/tex]
30 cm^2
How do you solve this problem?
The product of the expressions (1/5 x - 1/4) and (2/3 x + 1) will be 2/15 x² + 1/30 x - 1/4.
What is multiplication?It is also known as the product. If the object n is given to m times then we just simply multiply them.
The expression is given below.
(1/5 x - 1/4) and (2/3 x + 1)
Then the product of the expressions (1/5 x - 1/4) and (2/3 x + 1) will be
⇒ (1/5 x - 1/4) (2/3 x + 1)
⇒ 2/15 x² + 1/5 x - 1/6 x - 1/4
⇒ 2/15 x² + 1/30 x - 1/4
More about the multiplication link is given below.
https://brainly.com/question/19943359
#SPJ1
A? B? C? or D? help meeeeee
Answer:
b) -5/9
Step-by-step explanation:
yeah-ya.... right?
yolanda's yoga class charges a $20 membership fee and $20 per visit.
write an expression that represents the cost of "x" visits: C=_______
how many visits would it take for the two costs to be the same?
(use your expressions and make them equal to each other and solve)
The 2 expressions: 10x + 100 and 20x + 20
20x + 20:
20 dollars per visit (20x) ; 20 dollar fee (20)
10x + 100 = 20x + 20 Subtract 10x from both sides
100 = 10x + 20 Subtract 20 from each side
80 = 10x Divide by 10
x=8Larry and Cathy study for a total of 24 hours each week. Larry studies 3 less than twice the hours than Cathy studies. How many hours does Cathy study per week?
ATQ
[tex]\\ \sf\longmapsto x+2x-3=24[/tex]
[tex]\\ \sf\longmapsto 3x-3=24[/tex]
[tex]\\ \sf\longmapsto 3x=24+3[/tex]
[tex]\\ \sf\longmapsto 3x=27[/tex]
[tex]\\ \sf\longmapsto x=9[/tex]
Answer:
ᎪꪀsωꫀᏒ9 hours Cathy study per week
Step-by-step explanation:
=> according to the question
➪ x+2x-3=23
➪ 3x-3=24
➪ 3x=24+3
➪ 3x=27
➪ x= 27/3
➪ x= 9
10. Name the line three ways.
9 - 5n < -4n + 9 or 9n + 4 < 7n - 4
find abc !!!!!!!! !!!!!
Answer:
58 degreess
3x+11=4x-5
-3x -3x
11=x-5
+5 +5
16=x
x=6
3(6)+11
18+11
29
29*2
58
Step-by-step explanation: