Step-by-step explanation:
a) 1st term: 1-4= -3
2nd term: 2-4= -2
3rd term: 3-4= -1
b) FORMULA: a1 (n-1) d
a1 (first term): -3
d (difference): 1
-3 (n-1) 1
-3-1n-1= -1n-4
hope it helps! please make me brainliest..
Thank you! have a good day ahead ☺️
Simpily the expression below: 2(4x + 5y)
Answer: 8x+10y
Step-by-step explanation:
2(4x)= 8x
2(5y)= 10y
8x+10y
What is the volume of the cone?
Answer:
70/3 πcm
Step-by-step explanation:
hope this helps
Can someone help me pleas
34 (7)-7
Need helpppp
Answer:
231
Step-by-step explanation:
Two types of tickets are sold to a play. Floor seats cost $45 each and balcony seats cost $25 each. A play sells 107 tickets and makes a total of $3,375. How many of each type of ticket are sold?
Answer:
floor seats=35
and the balcony seats =72
Step-by-step explanation:
Step one
given data
let the floor seats be x
and the balcony seats be y
so
45x+25y=3375-------1
x+y= 107----------------2
from 2, x= 107-y
put x= 107-y in 1
45(107-y)+25y=3375
4815-45y+25y=3375
collect like terms
-45y+25y= 3375-4815
-20y=-1440
divide both sides by -20
y=72
put y= 72 in eqn 2
x+72=107
x=107-72
x=35
What is the domain of the function? {(-3,-9), (7,9), (9, 1), (7,3)} Colleen wrote her answer as (-3,7,7,9) and she got it marked WRONG! What did she do wrong?
Answer: added
Step-by-step explanation:
i need this fast guys I'm willing to give brainly
3x-9=7x+14 solve for x
Answer:
x= - 23/4
Step-by-step explanation:
Add 9 to both sides of the equation:
3x -9 = 7x +14
3x- 9 + 9 = 7x +14 +9
Simplify:
3x -9 + 9 = 7x +14 +9
3x = 7x +14 +9
3x =7x +14 +9
Subtract 7x from both sides of the equation:
3x= 7x +23
3x -7x = 7x +23 - 7x
Simplify Again:
3x -7x = 7x +23 -7x
-4x =23
Combine like terms:
-4x =23
Divide both sides of the equation by the same terms:
14x/ 14 = 23/ -4
Cancel terms that are both the numerator and the denominator:
x= - 23/- 4
Answer:
x= - 23/4
10. Keith has 7.8 ounces of tuna salad. If
he makes 3 sandwiches with an equal
amount of tuna on each, how much tuna
does he put on each one?
Answer:2.6 ounces per sandwich
Step-by-step explanation: 7.8/3= 2.6
Help I need the answer
Answer:
Step-by-step explanation:
The graphy has got a negative slope.. running down hill.. and by 4
sooo... the last choice looks good
x squared -8x+14=2x-7
Answer:
x = 3 or x = 7
Step-by-step explanation:
X² - 8x + 14 = 2x - 7
x² - 8x + 14 - 2x + 7 = 0
Now we have a quadratic equation ;
x² - 10x + 21 = 0
-3 and - 7 gives a sum of - 10 and a product of 21
x² - 3x - 7x + 21 = 0
x(x - 3) - 7(x - 3) = 0
(x - 3) = 0 or (x - 7) = 0
x = 3 or x = 7
Yesterday, there were 40 problems assigned for math homework. Gavin got 28 out of 40 problems correct. What percentage did Gavin get correct?
Write your answer using a percent sign (%).
Answer:
70%
Step-by-step explanation:
I'm pretty sure its 70 because write it as a fraction 28/40 when divide them both and you get 0.7 which is 70. I hope that works
3 + x = 18 please help!!!!!!!!!!
Answer:
X=15
all you have to do is subtract 3 from 18 to get x
Step-by-step explanation:
3 + x = 18
x=18-3
x=15
Hope this helps
Andreas is running a race 13.1 long he already ran 1.1 miles What equation and solution correctly restore send how many miles m Andre's has lag to run
Answer:
okokokokokokokokokolkokokok
PLZZZHELP
ill mark brainliest
Answer:
[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5
Step-by-step explanation:
You need to try change the subject from x to y.
x = 4y - 2
We first move -2 to the left, making the equation
x + 2 = 4y i.e.
4y = x + 2
We then divide both sides by 4.
[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5
We now have successfully made y the subject, and effectively solving the equation.
From the given image, which number line doesn't belong and why?
Answer:
3
Step-by-step explanation:
Express the ratio 14 inches to 3 feet as a fraction in simplest form
A square has a perimeter of 8x - 10 units, Each side is x units long. What is the value of x?
Answer:
They want you to recognize that you can make 2 equations that both are equal to P.... the perimeter.... and then set them equal to each other and solve for x .. as below
Step-by-step explanation:
P = 8x-10
P = 4x
4x = 8x-10
10 = 4x
2.5 = x
Write in standard form.
a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4
Answer:
2 4 2 8 3 7 3 10 4 hope it will work
What is 2 x 2 x 2 x 2 x 2 x 2 x 2 is exponet form
Answer:
2^7
Step-by-step explanation:
Answer:
2^7
Step-by-step explanation:
2 to the 7th power because there are 7 2s in the whole equation
Also, 2*2*2*2*2*2*2 is 128, which is 2^7
A student usually save $20 a month.He would like reach a goal $350 in 12 months
he will need to save 30 dollars a month
Step-by-step explanation:
There were 20 questions on an exam. You answered 40% of them incorrectly. How many did you answer incorrectly?
Answer: 4
Step-by-step explanation: 20-10=10 which is %50. 20-16=4
Pls help me ASAP!
Evaluate the following
a: |8| - 9 =
b: |8 - 9| =
Answer:
a = -1
b= 1
Step-by-step explanation:
8's absolute value is 8, so 8 - 9 is -1 but 8-9 = -1 and since the answer is in the absolute value bars, -1's absolute value is 1, so the answer will be 1
but in a, only 8 is in the absolute value bars, not the complete answer
is 5y=7x+6 linear or nonlinear
Answer:
Linear
Step-by-step explanation:
5y=7x+6 is linear equation in two variables.
1. Ryan and Rachel attended the weekend games at the neighborhood stadium and bought some food at the stands Ryan paid $7.10 for 3 corndogs and 1 coke Rachel paid $7.20 for 2 corndogs and 2 cokes. How much is each corndog?
Please help :( I’ll give you brainiest ♡
Answer:
$1.75
Step-by-step explanation:
Set up a system of equations where x is the cost of a corndog and y is the cost of a coke:
3x + y = 7.1
2x + 2y = 7.2
Solve by elimination by multiplying the top equation by -2
-6x - 2y = -14.2
2x + 2y = 7.2
Add them together:
-4x = -7
x = 1.75
So, the cost of one corndog is $1.75
Sorry I tried doe
(The answer I got would be in the negatives, I don't think that would be correct)
4
1. In the equation y = x + 5, what is the slope and
=
y-intercept?
m =
b=
Answer:
m = [tex] \frac{4}{3} [/tex]
b = 5
Solving systems of equation using elimination
1)2x+2y = 8
x – 2y = 4
2)x+y=8
x-y=4
3)2x+2y=4
x-y=4
4)2x+2y=4
x-y=4
5)x+2y=8
x+3y=4
I need the answer for each problem. Please help is due in 30 minutes!
Answer:
2x+2y = 8
x – 2y = 4
3x=12
x=12/3=4
x=4
2x+2y=8
2(4) + 2y = 8
8+2y = 8
2y=8-8
2y=0
y=0/2=0
2(4)+2(0)=8
8+0=8
x+y=8
x-y=4
2x=12
x=12/2=6
6+y=8
y=8-6=2
6+2=8
2x+2y=4
x-y=4
2x+2y=4
2(x-y=4)
2x+2y=4
2x-2y=8
4x=12
x=12/4=3
2(3)+2y=4
6+2y=4
2y=4-6
2y=-2
y=-2/2=-1
2(3)+2(-1)=4
6+-2=4
x+2y=8
-(x+3y=4)
x+2y=8
-x-3y=-4
-1y=4
y=4/-1=-4
x+2(-4)=8
x+-8=8
x=8+8=16
ANSWER QUICK PLEASE the following graph shows the solution to which inequality?
Answer:
D. 5>-3w+17
Step-by-step explanation:
Evaluate the function: f(x)=x2+2x, find f(−1)
Answer:
[tex]f( - 1) = - 1[/tex]
Step-by-step explanation:
[tex]f(x) = {x}^{2} + 2x[/tex]
Substitute x = -1 in the equation.
[tex]f( - 1) = {( - 1)}^{2} + 2( - 1) \\ f( - 1) = 1 - 2 \\ f( - 1) = - 1[/tex]
What is the constant for 5c2+7d
Answer:
2
Step-by-step explanation:
5 and 7 are the coefficients if you need them
