Answers
Answer:
7. 7x
8. -2v+19
9. 8p-26
10. 14y-5
11. 7m-13
12. -8k+25
13. -3w-13
14. -9c+27
15. m+4n
16.-7s
17. 6x-13y-24
18. 6h-16b
19. -9p+9q+12
20. 2k/5+ 31/4
Step-by-step explanation:
Related Questions
The last one is y-2=-(x-4) sorry I couldn’t fit it all in
Answers
Answer:
y + 2 = (x - 2)
Step-by-step explanation:
From the graph, you can see that when y = 0, x = 2, and vise versa. Taking this into consideration, if y = 4, x = 2, so, the answer is y + 2 = (x - 2)
Guys i posted this question 100times plz answer i beg, thank you so much, plz show all the working
Answers
Answer:
x = 45.6
Step-by-step explanation:
NOTE: Please double-check my answer.
To find x, I used Sine Law.
[tex]\frac{x + 5}{sin65}[/tex] = [tex]\frac{x}{sin40}[/tex]
(x+5)sin40 = xsin65
xsin40+ 5sin40 = xsin65
xsin40 - xsin65 = -5sin40
x(sin40 - sin65) = -5sin40 (I factored out the "x")
x = [tex]\frac{-5sin40}{sin40 - sin65}[/tex]
x = [tex]\frac{-3.725565802}{0.74511316 - 0.826828679}[/tex]
x = 45.6
A plot of land is in the shape of a triangle. Two of the angles measure 48 degrees and 74 degrees. The length of the side between them is 90 m.
a) calculate the perimeter of the plot, to the nearest meter.
b) calculate the area of the plot, to the nearest square meter.
Answers
Answer:
Perimeter = 271 meters
Step-by-step explanation:
third angle measure would have to be 180 - 122 = 58 degrees
you can use the law of sines:
sin 58° = sin 74°
90 b
.85 = .96
90 b
cross-multiply: .85b = 86.4
b = 102
now do again to find third side:
sin 58° = sin 48°
90 c
.85 = .74
90 c
.85c = 67
c = 79
now you know all 3 sides so add them to get perimeter (79+102+90) = 271
Given the statement "r varies jointly as s and t". if r =16 when s = 4 and t =6, what is the constant of the variation?
Answers
Mary rounds these numbers to the nearest hundred. Which number does she round to 400? Choose all that apply. A) 351. B) 369 C). 401. D) 413. E) 448
Answers
Answer:
401
Step-by-step explanation:
You must be at least 42 inches tall to ride the bumper cars at an amusement park. Write an inequality that represents this situation. Let x represent the heights of people who are allowed to ride the bumper cars.
Answers
Answer:
x is greater than or equal to 42 inches (I can't do the smybol for it)
Step-by-step explanation:
Simplify: (3+√5)(4-√5)
Answers
Answer:
7+√5
Step-by-step explanation:
Answer:
7+[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Kieran, Jermaine and Chris play football.
Kieran has scored 8 more goals than Chris.
Jermaine has scored 5 more goals than Kieran.
Altogether they have scored 72 goals.
How many goals did they each score?
Answers
Step-by-step explanation:
Find an equation that explains the problem. We can see how many goals the players have scored in comparison to each other. The person with the fewest goals is Chris. Let us say he score x goals. Then we can see that Kieran has scored 8 more than Chris, i.e. x + 8. Jermaine scored 5 more goals than Kieran, therefore x + 8 + 5 = x + 13. Now we have the amount of goals each person scored relative to each other. The total number of goals scored was 72, thus all of these amounts must equal 72.
x + (x + 8) + (x + 13) = 72
Now we can rearrange and solve for x.
3x + 21 = 72
3x = 51
x = 17
Someone pls help me solve this I’m having really bad anxiety!
Answers
1) Give an example of a rational number AND an irrational number.
What is the difference between them?
2) What is the decimal equivalent of your two examples?
3) Can every repeating decimal be written as a rational number? Explain why or why
not.
Answers
Answer:
Step-by-step explanation:
A rational number is one that can be expressed as a fraction. Pi cannot be. If I tell you that the 2000th digit of pi is an 8 (which it probably isn't) and I ask you to tell me the 2001 value of pi, you have no better odds that 1/10 of getting it right.
A rational number can always be reduced to a fraction. 20 1/2 can be expressed as a fraction. It is 20.5
Pi is irrational. I don't know the value of pi beyond what a calculator can tell me. 3.14159265 The next digit is a 4. I know this only because that is what the calculator tells me.
Repeating decimals call always be represented as a fraction. For ex
x = 0.123123123123123
1000x = 123.123123123123
x = .123123123123123 Subtract
999x = 123
This comes about because in both cases what is after the decimal is the same.
x = 123/999 = 41/333
Im solving variables 31 = 3 (y+7) - 8y
Answers
subtract 21 from both sides of the equation
simplify
divide both sides
y=-2
Answer:
y = -2
Step-by-step explanation:
31 = 3 (y+7) - 8y
31 = 3y +21 - 8y
31 = -5y +21
10 = -5y
-2 = y
Which pairs are like terms in the expression below? Select all that apply.
Žy + } x-0.25 – 6 +(-2)
Ay and { x
and 1
B. žy and
y and -0.2,
C.
1/3 x
and-0.27
D. -0.2y and 2
E. -6 and -2
Answers
OPEN ENDED QUESTION
What is (-3)2?
Answers
Answer:
-6(?)
Step-by-step explanation:
-3 times 2 is -6. But why is this open ended?
Answer:
-6
Step-by-step explanation:
three twos
add the negative
????????i don’t understand
Answers
Answer:
to blurry
..............
help mee plzz will give brainliest
Answers
Explanation: 180-72= 108. 108 divided by 9 is 12
Answer:
Answer: X=12
Explanation: 180-72= 108. 108/9 = 12
Step-by-step explanation:
HELP I NEED HELP ASAP
Answers
Answer:
Step-by-step explanation:
1). Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Therefore, slope of the line passing through two points (2, -10) and (-2, 18) will be,
m = [tex]\frac{-10-18}{2+2}[/tex]
m = -7
2). From the table attached,
Slope of the line = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of line passing through (4, -6) and (0, -2) will be,
Slope = [tex]\frac{-6+2}{4-0}[/tex]
Slope = -1
PLEASE HELP FAST
decide if the following systems of equations have a single solution no solution or infinity many solution x+ 5y =9 _ x+5y=6
Answers
Answer:
no solutions
Step-by-step explanation:
I believe there are no solutions for these 2 equations.
Hope this helps!
Y = - 3x 4x - 2y = -20
Solve for x
Answers
Answer:
x=-2
Step-by-step explanation:
y=-3x
4x-2y=-20
2y=4x+20
y=2x+10
subs y
2x+10=-3x
5x=-10
x=-2
please help me with this! Thank youu
Answers
Answer:
y=-3x+2
y = [tex]\frac{1}{5}[/tex]x - 5
Step-by-step explanation:
Question 1
It is given that;
- one of the lines has an equation of; y = -3x-7
- the given line's y-int is (0, 2) ~(The y-int is when the line crosses the y axis, hence x is zero)
- these two lines are parallel
When two lines are parallel, their slope is the same, hence the equations of the given line would look like this;
y = -3x + 2
In the slope-intercept format (which is; y = mx + b, where "m" is the slope, and "b" is the y-intercept).
Questions 2
It is given that;
- one of the lines has an equation of y = -5x + 1
- the given line's y-int is (0, -5) ~(The y-int is when the line crosses the y axis, hence x is zero)
- these two lines are perpendicular
When two lines are perpendicular, their slopes are the negatives reciprocal of each other, hence the equations of the given line would look like this;
y = [tex]\frac{1}{5}[/tex]x - 5
In the slope-intercept format (which is; y = mx + b, where "m" is the slope, and "b" is the y-intercept).
can someone help me with 26 and 27?
Answers
Answer:
B
Step-by-step explanation:
Solve equation by using the quadratic formula 25x^2 + 35x = -12
Answers
Answer:
[tex]\displaystyle x=\frac{-4}{5}, \frac{-3}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Multiple RootsStep-by-step explanation:
Step 1: Define
25x² + 35x = -12
Step 2: Rewrite
[Addition Property of Equality] Add 12 on both sides: 25x² + 35x + 12 = 0Step 3: Identify
Identify Variable Parts.
a = 25, b = 35, c = 12
Step 4: Solve for x
Substitute in variables [Quadratic Formula]: [tex]\displaystyle x=\frac{-35\pm\sqrt{35^2-4(25)(12)}}{2(25)}[/tex][Numerator - √Radical] Evaluate exponents: [tex]\displaystyle x=\frac{-35\pm\sqrt{1225-4(25)(12)}}{2(25)}[/tex][Numerator - √Radical] Multiply: [tex]\displaystyle x=\frac{-35\pm\sqrt{1225-1200}}{2(25)}[/tex][Numerator - √Radical] Subtract: [tex]\displaystyle x=\frac{-35\pm\sqrt{25}}{2(25)}[/tex][Denominator] Multiply: [tex]\displaystyle x=\frac{-35\pm\sqrt{25}}{50}[/tex][Numerator - √Radical] Evaluate: [tex]\displaystyle x=\frac{-35\pm5}{50}[/tex]Evaluate: [tex]\displaystyle x=\frac{-4}{5}, \frac{-3}{5}[/tex]Manuel incorrectly claimed that the surface area of the cylinder shown is about 190.0 in.2. Use a formula to find the surface area of the cylinder. Use 3.14 for π. What was his likely error?
Answers
The likely error in Manuel's claim is 552.61 in².
We have,
Height = 16 in
Diameter = 11 in
radius = 5.5 in
The surface area of a cylinder.
= 2πrh + 2πr²
= 2 x 3.14 x 5.5 x 16 + 2 x 3.14 x 5.5²
= 552.64 + 189.97
= 742.61 in²
Now,
Manuel incorrectly claimed that the surface area of the cylinder is
190.0 in²
Error = Correct surface area - Claimed surface area
Error = 742.61 in² - 190.0 in²
Error ≈ 552.61 in²
Thus,
The likely error in Manuel's claim is 552.61 in².
Learn more about cylinder here:
https://brainly.com/question/15891031
#SPJ4
One newspaper reported that the mayor received a salary increase of 5%.Another paper reported that the mayor’s salary went up $2000. What was the mayor’s salary before the increase?
Answers
Answer:
$1900
Step-by-step explanation:
5% increase is $100 dollar
Answer:
Let
x= Mayor’s previous salary
y=his increased salary
5% increase means
(105/100)*x=y——-(1)
From the other reporter
The Mayor’s salary went up $2000
:. y-x=2000———-(2)
Put y= (105/100)*x into equation 2
105x/100 -x =2000
Multiply through by 100
105x-100x=200000
5x=200000
Divide both sides by 5
x=40000
Hence his previous salary was $40,000 and current one is
y=2000 +40000
y=$42000
Step-by-step explanation: from your question, you didn’t state whether it went up by 2000 or went to 2000. I chose went by 2000. If it were to be went to 2000 , the equation will be different. It would been 2000-x=y
pls help I need this done in a few minutes!
Answers
Answer:
-2/5
Step-by-step explanation:
rise/run
what is -23 = -11n + 10 + -3 + 9b = -48 i nEeEd HalPPP
Answers
meh not good at this
Answer:
WHAT IS HE SAYING?!
SOMEONE TELL ME WHAT HE'S SAYING, I DON'T SPEAK TACO BELL.
Explanation:
978/33
Point A is located in which quadrant?
On a coordinate plane, point A is at (negative 3, 5).
Answers
Answer:
answer is D
the point A is located on quadrant IV
Step-by-step explanation:
hope this helps!
Select two ratios that are equivalent to 2:92:92, colon, 9.
Answers
Answer:
The only options equivalent to 2:9 are B and C. A ratio is a comparison between two or more numbers
Step-by-step explanation:
Answer:
B and C
Step-by-step explanation:
there 2 strawberry ice cream
3 blueberry Ice cream
6 chocolate ice cream
4 ice pops
Select the three different ways to write a ratio comparing the number of Ice Pops to chocolate cone orders Write all ratios in simplest form
A 2 to 3
B 6 to 4
C 2 to 6
D 6 to 3
E 3:2
F 2:3
G 2:6
H 2/3
l 2/6
J 2/3
Answers
Answer:
A,F,J
Step-by-step explanation:
they are in simplified form and in the correct order
Melinda earns 10 minutes to play video games for every hour she spends on homework.
If Melinda spends 3 hours on homework, how many minutes will she earn to play video games?
Answers
Answer:
30 minutes
Step-by-step explanation:
if she earns 10 minutes per hour and there are 3 hours, 10 times 3 is 30
Answer:
30
Step-by-step explanation:
3*10=30A pair of basketball shoes's normal price is $120. Jordan bought it at a discount of 10%. He had to pay 8% tax on the discounted price. If jordan put 15% of the final cost (including tax) as a down payment, how much money did he have to pay for the down payment?
Answers
Answer:
$17.50
Step-by-step explanation:
If the shoes are discounted at 10%, the price would be 90% of the original price
Discounted price = 0.9 x 120 = 108
Tax increases the price of the good. so, the discounted price would increase by 8%
1.08 x 108 =116.64
If Jordan pays 15% as a down payment, he would pay :
0.15 x 116.64 = 17.496