Answer:
x = -4 y = -1
Step-by-step explanation:
x + 4y = -8
4y = -x - 8
y = -1/4x - 2
6x - 2(-1/4x - 2) = -22
6x + 1/2x + 4 = -22
13/2x + 4 = -22
13/2x = -26
x = -4
(-4) + 4y = -8
-4 + 4y = -8
4y = -4
y = -1
Answer:
x = -4 y = -1
Step-by-step explanation:
Solve for each variable by creating an equation and plugging it in to the other given equation.
- Equation to solve for x: x = -4y - 8
- Plug this equation into the other, solving for y so you have:
6(-4y-8)- 2y = -22 => -24y - 48 - 2y = -22 => -26y = 26 => y = -1
- Take this value and plug into the equation we created for x:
x = -4(-1) - 8 => x = 4 -8 => x = -4
- Check your work with given equation 6x -2y = 22:
6(-4) - 2(-1) = -22 => -24 +2 = -22 => -22 = -22
someone please do a step by step for this linear equation
Find the perimeter of a field with the following dimensions: Length: x² + 3x - 1 Width: 2x + 3
Answer:
B. 2x²+10x+4
Step-by-step explanation:
the perimeter =
2×(x²+3x-1+2x+3)
= 2×(x²+5x+2)
= 2x²+10x+4
Yolanda makes wooden boxes for a crafts fair. She makes 300 boxes like the one shown, and she wants to paint all the outside faces.
Answer:
1800
Step-by-step explanation:
cube have 6 faces
6*300=1800
Find the circumference of a circle with diameter,
d
= 7.18m.
Give your answer rounded to 2 DP.
Answer:
C = 22.56
Step-by-step explanation:
The equation for the circumference of a circle is [tex]C=2\pi r[/tex].
The radius is half the diameter so [tex]r=\frac{7.18}{2}=3.59[/tex]
Plug the radius into the equation.
[tex]C=2*\pi *3.59[/tex]
[tex]C=22.55664[/tex]
Given:
Diameter of circle = 7.18 m
To find:
Circumference of the circle
Steps:
We know that radius is equal to half of the diameter
r = d/2
r = 7.18/2
r = 3.59 m
Now circumference is equal 2πr
Circumference = 2πr
Circumference = 2 × 3.14 × 3.59 (taking pi as 3.14)
Circumference = 6.28 × 3.59
Circumference = 22.5452
Circumference ≈ 22.55 meters
Therefore, the circumference of the circle is approximately 22.55 meters
HAPPY TO HELP :)
If you need any more help, feel free to ask
A restaurant distributed 7,000 coupons. Over the next month, 3,290 of the coupons were redeemed. How many coupons were not used?
Answer:
3,710 coupons
Step-by-step explanation:
You have to do 7,000-3,290 to get the answer, as 7,000 is the total number of coupons given, and 3,290 is the amount of coupons that was used.
7,000-3,290=3,710
Please guys say me the answer fast By full step by step process those who give me correct answer i will make him brainalist ☺️
Answer:
1. 345,600 seconds
2. 432,000 seconds
3. 1 day
4. 7500 meters
Hope that this helps!
Answer:
4 days=345600sec
5 days=432000
86400=24 hours
7.5km = 4.6miles
Step-by-step explanation:
60sec * 60= 1hour * 24 * 4=4 days if one day = 86400 sec than 4 days is 345600 and we know one day is 86400 seconds so just add that for one day
to convers km to mils you multiply the km value by .6214
Find the volume of the hemisphere below leave your answers in terms of pi
Answer:
volume of the hemisphere
[tex] \frac{2}{3} \times \pi \times {r}^{3} \\ \frac{2}{3} \times \pi \times 1331 \\ = 887.3333333333\pi[/tex]
Determine whether the sequence is arithmetic or geometric. Sequence 1: –10, 20, – 40, 80, ... Sequence 2: 15, – 5, – 25, – 45, ... Which of the following statements are true regarding Sequence 1 and Sequence 2.
Answer:
1. geometric 2. arithmetic
Solve for x:
4 - 2(x - 3) = 24
please help
Answer: X = -7
Step-by-step explanation:
Answer:
x = -7
Step-by-step explanation:
4 - 2(x - 3) = 24
Distribute
4 -2x +6 = 24
Combine like terms
10 -2x = 24
Subtract 10 from each side
10-2x-10 = 24-10
-2x = 14
Divide by -2
-2x/-2 = 14/-2
x = -7
Which of the following values of r will result in a true statement when substituted into the given equation?
-r + 5(r + 2) = -10
A. r = -6
B. r = -5
C. r = 0
D. r = 1
Answer:
the right answer is -5 (B)
Step-by-step explanation:
-(-5) +5(-5+2)
5 + -15 = -10
Answer:
B. r = -5 is the answer.
The difference of the square of a number and 18 is equal to 3 times that number. Find the positive solution.
Answer:
18 = 3 x 6
Step-by-step explanation:
If you don't know the difference of the square of a number you can already see that it's telling 18 = 3 times that number so identify the missing number by multiplying 3 times a number.
18 = 3 x ?
18 = 3 x 6
18 = 18
:D
Answer:
6
Step-by-step explanation:
Let us start by writing an equation using the variable x.
The square of a number x minus 18 equals 3 times x:
[tex]x^{2} -18=3x[/tex]
Great! Now let us solve for x by moving the 3x term to the left side of the equation and obtain a quadratic equation:
[tex]x^{2} -3x-18=0[/tex]
We can use the quadratic formula [tex]\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex] to solve for x. *Please ignore the A after b. I cannot remove it for some reason.*
From our equation, a represents the coefficient of the term with degree of 2. Therefore, our a variable is 1. b represents the coefficient of the term with degree 1. Out variable b is therefore -3. Lastly, c represents the term with degree 0. Our c variable is -18. Lets solve!
[tex]\frac{3 ±\sqrt{(-3)^{2}-4*1*(-18) } }{2*1} =\\\frac{3 ±\sqrt{9+72} }{2} =\\\frac{3 ±\sqrt{81} }{2} =\\\frac{3 ±9}{2} \\\\[/tex]
Now we have two possible solutions. Let us start with the addition version:
[tex]\frac{3+9}{2} =\\\frac{12}{2} =\\6[/tex]
Alternatively you could try the subtraction version:
[tex]\frac{3-9}{2} =\\\frac{-6}{2} =\\-12[/tex]
However, the question asks to find the positive solution. Therefore, out answer is 6.
I hope this helps! Please let me know if you have any questions :)
Which of the following is the explicit rule for a geometric sequence defined by
a recursive formula of…
A. an = 13.7041
OB. a, = 13.70-1
O C. a, = 7.13+1
O D. an = 7.130-1
Answer:
D
Step-by-step explanation:
Always apply the formula a_n=ar^(n-1) in this type of questions, since you know that the first term, a is 7 and the common ratio, r is 13. Therefore you can substitute a = 7 and r = 13 into the equation which equals to a_n=7×13^(n-1)
The explicit rule for a geometric sequence defined by,
a(n) = 7 × 13ⁿ⁻¹
We have to given that,
a (n) = 13 a (n - 1)
Now, We can simplify as,
a (n) / a (n - 1) = 13
a (n) = 13 a (n - 1)
Since, We know that,
a(n) = a × rⁿ⁻¹
Here, a = 7
a(n) = 7 × 13ⁿ⁻¹
Hence, Option c is true.
Learn more about the geometric sequence visit:
https://brainly.com/question/25461416
#SPJ7
Use the table to find f(3).*
Answer:
7 is the answer
Step-by-step explanation:
Hope this answer helps you :)
Have a great day
Mark brainliest
let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?
Given:
[tex]f=\{(1,2),(2,3),(5,6),(7,8)\}[/tex]
To find:
The values of f(2) and f(5).
Solution:
If an ordered pair [tex](x,y)[/tex] is in the function [tex]f[/tex], then [tex]f(x)=y[/tex].
In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get
[tex]f(2)=3[/tex]
In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get
[tex]f(5)=6[/tex]
Therefore, the value of f(2) is 3 and the value of f(5) is 6.
PLZ HELP WITH MATH THIS IS MY LAST DAY AND I NEED TO FINISH IT!!
The tables show the proportional relationship between two quantities. Write the constant of proportionality for each table.
(A) The constant of proportionality is _________.
(B) The constant of proportionality is _________.
(C) The constant of proportionality is _________.
Answer:
I'm really sorry but show the table
A knitted pot holder is shaped like a circle. Its radius is 3.5 inches. What is its area?
Answer:
The area would be 38.48 square inches.
Step-by-step explanation:
With the radius being 3.5 once you solve it, the area comes out being 38.48 square inches. Hope this helps :D (also can you mark me brainliest)
PLEASE HELP!!! will mark brainliest
In general,
data
but do not measure.
A. numerical; classify
B. categorical; classify
C. categorical; value
D. none of the above
Answer:
D. None of the AboveStep-by-step explanation:
Because they are all kinds of statistical Data#hopeithelpsstay safe and keep wellMark me as brainliest pls11. Solve the system of equations.
y = 4x + 2
y-- 2x+2
А) , x= 0, y = 2 © x=2,y=0
( B) x=0, y=1 D x=1,x=0
Answer:
x = 0 y = 2
Step-by-step explanation:
4x + 2 = -2x + 2
6x + 2 = 2
6x = 0
x = 0
y = 4(0) + 2
y = 2
Which of the following has a geometric sequence
Answer:
5, -25, 125, -625
Step-by-step explanation:
A geometric sequence is where a number is divided or multiplied by same number continuously
in the third option the number are multiplied by (-5) continuously
What is the volume of a cube with 3-inch edges, in cubic inches?
Answer:
Sorry don't know sis I am really sorry
Answer:
volume is the area multiplied by the depth. We also know it's a club so it's one side of 3 is true for all sides and depth.
its 3 x 3 x 3... which is 9 x 3 which is 27.
27 units cubed
The plane climbed 242 more feet at an angle of 2 degree. How much further did the plane travel to reach its maximum height?
244 is the answer
hope u like it
HELP PLEASE!
11 POINTS!
Answer:
yellow= 66ft^3
blue=312 ft^3
Step-by-step explanation:
small box volume + large box volume
small box:
1*1*2=2ft^3
large box:
8*2*4=64ft^3
total = 2+64=66ft^3
blue
small block= 4*6*2=48
large block=12*2*12=264
total= 48+264=312
A $12 beach towel is discounted 40%. Find the sales price.
Answer:
$7.20
Step-by-step explanation:
Answer:
7.20
Step-by-step explanation:
This is because
[tex]40\% \: of \: 12 \: = 4.8[/tex]
[tex]12 - 4.8 = 7.2[/tex]
Can you guys Help me PLEASEEE
Answer:
B is down from D which makes it an oder pair
Step-by-step explanation:
Answer:
The ordered pair is (2,6)
I NEED HELP BEFORE 3pm PLEASE HELP!!!
Answer:
yes it is.
Step-by-step explanation:
Joe works mowing lawns and babysitting. He earns $9.10 an hour for mowing and $7.90 an hour for babysitting. How much will he earn for 1 hour of mowing and 5 hours of babysitting?
Answer:
Joe would receive $9.10 for One hour of mowing the lawn and $39.50 for Five hours of babysitting, which (if needed) adds up to $48.60
Step-by-step explanation:
It's as simple as multiplication. Since he only mowed the lawn for one hour, it would only be $9.10. Since he babysat for 5 hours, you'd simply multiply $7.90 by five, giving you the answer $39.50
What fraction is at point A on the number line below? А ++ 0 + 1 Use the number pad to enter your answers in the boxes.
Answer:
1/2 .Step-by-step explanation: on the number line, draw the number line and mark a point A to represent 1. Now, divide the gap between O and A into two equal parts
Question 17 The numbers in the circles go together in a certain way. Find the missing number marked by the question mark: 180, 14 120, 8 A:70 B: 80 C:60 D: Mr Sockman ?, 4 D:40
Answer:
B. 80
Step-by-step explanation:
According To Question, We Have
(180,14) (120,8) (? , 4) (220,18)
it Clearly Visible That ( 180*a+b=14 ) only Possible when we Put a=1/10 & b=-4. Thus, (180*1/10)-4 ⇔ 18-4 = 14Same For All (120*a+b=8)Thus, (120*1/10)-4 ⇔ 120-4 = 8
Now (?*1/10)-4=4 solve it .
Thus, ?*1/10=8⇔?=80 is Our Missing Number .
a. What is the perimeter of a square with side length: 3 cm? 7 cm? s cm?