Answer:
The correct answer is:
Option A. a_n=9+(n-1)(-3)
Step-by-step explanation:
Given that
a1 = 9
[tex]a_n = a_{n-1}-3[/tex]
We can see that in recursive formula the next term is being obtained by subtracting 3 from previous term
That means that the common difference is -3
We also know the first term
The general form of explicit formula for an arithmetic sequence is:
[tex]a_n = a_1 + (n-1)(d)[/tex]
We know that a1 = 9 and d = -3
Putting the values we get
[tex]a_n = 9+(n-1)(-3)[/tex]
Hence the correct answer is:
Option A. a_n=9+(n-1)(-3)
can someone help me out here pls?
how much butter is needed to make a cake for 10 people
ingredients for 4 person cake
'80g plain flour'
'60g almonds'
'90g brown sugar'
'60g butter'
five more than two-thirds of a number is 12 . what is the number ?
Answer:
[tex]x=7\frac{3}{2}[/tex]
Step-by-step explanation:
Suppose the number is x
[tex]\frac{2}{3}x+5=12[/tex]
[tex]\frac{2}{3}x=12-5[/tex]
[tex]x=7\frac{3}{2}[/tex]
please help me with this urgent!!!!!
The area of this rectangle is 10cm2, find the value of x and use it to find the length and the width of the rectangle.
If the length of a rectangle is three time the width and it’s perimeter is 24 cm, what is its area?
Answer:
The area of this rectangle is 10cm2, find the value of x and use it to find the length and the width of the rectangle.
If the length of a rectangle is three time the width and it’s perimeter is 24 cm, what is its area?
Length and width of the rectangle are 4 cm and 2.5 cm respectively.
Given in the picture,
A rectangle with the area of 10 cm².Expressions representing the lengths of the rectangle as(4x + 2) cm and (10x - 1) cm
By the property of a rectangle, measure of opposite sides of a rectangle are always equal,
(4x + 2) = (10x - 1)
(4x + 2) - 4x = (10x - 1) - 4x
2 = 6x - 1
2 + 1 = (6x - 1) + 1
3 = 6x
[tex]x=\frac{3}{6}=\frac{1}{2}[/tex]
Now we can get the length of the given rectangle by substituting the value of 'x' in (10x - 1) or (4x + 2).
(10x - 1) = [tex]\frac{10}{2}-1[/tex]
= 4 cm
Since, area of a rectangle is given by the expression,
Area = Length × width
By substituting the values in the expression,
10 = 4 × width
Width = [tex]\frac{10}{4}[/tex]
= 2.5 cm
Therefore, length and width of the rectangle are 4 cm and 2.5 cm respectively.
Learn more,
https://brainly.com/question/12984721
DOES ANYONE KNOW WHAT THE CORRDINTS ARE??!!
Answer:
-7 and -5
Step-by-step explanation:
It is where the parabola intercepts the x axis which is -7 and -5
Consider these dilations. 1. Large triangle right-arrow smaller triangle. 2. Small square right-arrow large square. 3. Line segment right-arrow identical line segment. Which best describes the scale factor for each dilation? Dilation 1 has a scale factor . Dilation 2 has a scale factor . Dilation 3 has a scale factor .
Answer:
Dilation 1 has a scale factor
✔ between 0 and 1
.
Dilation 2 has a scale factor
✔ greater than 1
.
Dilation 3 has a scale factor
✔ equal to 1
.
Step-by-step explanation:
i got it right on edge
Answer: 1.(between 0 and 1) 2.(greater than 1) 3.(equal to 1)
Step-by-step explanation: i hope this helps!
last question for the day
Answer:
a
Step-by-step explanation:
Type the missing number in this sequence:
1, 2, 5, 10, , 26, 37, 50
Cocoa owes three of her friends $4.60 each. How much money does cocoa owe in total?
Answer: $13.80
Step-by-step explanation: Just multiple $4.60 times 3! Good luck! :D
Soos is spending money at an average rate of $5 per day. After 9 days, he has $25 left.
How much money did Soos have at the beginning (on day 0)?
y - 5= 9(x - 25)
Answer:
$70
Step-by-step explanation:
According to the problem, calculation of given data are as follows:
Spending money at rate = $5 per day
After 9 days money left = $25
We can calculate the money on day 0 by using following formula,
y = mx + b
Here, y = money left after 9 days
m = rate of spending money
x = number of days
b = money on day 0
So, by putting value, we get
$25 = (-5 × 9 ) + b
b = $25 + $45
= $70
Divide these fractions
2/3 = 3/4
Answer:
8/9
Step-by-step explanation:
I'm pretty sure after you make it a reciprocal you multiply it
Sebastian bought snacks for his team's practice. He bought a bag of popcorn for $1.68
and a 15-pack of juice bottles. The total cost before tax was $21.78. Write and solve an
equation which can be used to determine x, how much each bottle of juice costs?
Answer:
$1.34
Step-by-step explanation:
He bought a bag of popcorn for $1.68 and a 15-pack of juice bottles.
The total cost before tax was $21.78.
Let the number of juice bottles = x
Hence, our Equation is given as:
$1.68 + 15 × x = $21.78
$1.68 + 15x = $21.78
Collect like terms
15x = $21.78 - $1.68
15x = $20.1
x = $20.1/15
x = $1.34
Therefore, the cost for each bottle of juice = $1.34
Given that DE, DF, and FE are the lengths of mid-segments, what is the perimeter of the triangle ABC?A)23B)32C)46D)69
Answer: 46
Step-by-step explanation:
Help ASAP this math is really hard to me im trusting yall
Answer:
it should be c
Step-by-step explanation:
Answer:
The anser is C
Step-by-step explanation:
both are equal to 12
114 points on the coordinate plane below which point would lie on both the X axis and the Y axis?
Answer:
(0, 0 )
Step-by-step explanation:
The point at the origin, where the x and y axes meet is on both
The coordinates of the origin are (0, 0 )
5x−4y=34
−x+8y=22
elimination
Answer:
The solution to the system of equations is:
[tex]x=10,\:y=4[/tex]
Step-by-step explanation:
Given the system of equations
[tex]\begin{bmatrix}5x-4y=34\\ -x+8y=22\end{bmatrix}[/tex]
Multiply -x+8y=22 by 5: -5x+40y=110
[tex]\begin{bmatrix}5x-4y=34\\ -5x+40y=110\end{bmatrix}[/tex]
so adding the equations
[tex]-5x+40y=110[/tex]
[tex]+[/tex]
[tex]\underline{5x-4y=34}[/tex]
[tex]36y=144[/tex]
solve 36y = 144 for y:
[tex]36y=144[/tex]
divide both sides by 36
[tex]\frac{36y}{36}=\frac{144}{36}[/tex]
Simplify
[tex]y=4[/tex]
For 5x-4y=34 plug in y=4
[tex]5x-4\cdot \:4=34[/tex]
[tex]5x-16=34[/tex]
Add 16 to both sides
[tex]5x-16+16=34+16[/tex]
Simplify
[tex]5x=50[/tex]
Divide both sides by 5
[tex]\frac{5x}{5}=\frac{50}{5}[/tex]
Simplify
[tex]x=10[/tex]
Therefore, the solution to the system of equations is:
[tex]x=10,\:y=4[/tex]
Please help due in 5 minutes
Answer:
the first one belongs to 1 and the second one belongs to 2
Step-by-step explanation:
2/5 of the 45 oranges fell out of the tree. how many oranges fell out of the tree?
Answer:
18 oranges
Step-by-step explanation:
To find this, we have to calculate 2/5 * 45, which is equal to 45 * 2 and then divided by 5 (Or you could cross cancel). 45 * 2 is equal to 90 and 90/5 is equal to 18. That means that 18 oranges fell out of the tree.
Eric is told by his doctor that he needs to lose 15 pounds. If Eric now weights 285 pounds,then by what percentage should Eric weight decrease?
Answer:
5.26%
Step-by-step explanation:
15/285=x/100. 15 is the amount of weight he wants to lose. x=5.26%
600×4 what is it hhhhhhhhhhhh
Answer:
2400
Step-by-step explanation:
Find the value of x.
110°
X + 116
I need this really fast in like 2 min
2 + 5x – 3 – 2 + 4x = 15
Answer: x=2
Step-by-step explanation:
Simplifying Radicals pls help with full calc
Answer:
√98=√2×7×7=7√2
√16b^5=√4×4×b×b×b×b×b=4b²√b
√26x2=√13×2×2=2√13
hope it helps.
Haven earned $165 working as a babysitter. When she goes back to school, she needs more than $192 to buy a new coat How
much must she eam before returning to school? Write and solve an inequality to represent this scenario.
Answer:
$27
Step-by-step explanation:
These figures are similar. What is the length of the missing side, x?
Answer:
5 ft
Step-by-step explanation:
the smaller one is 1/3 of the size of the bigger one
I have no words... thank y’all so much!!❤️❤️✨✨
Answer:
The first one.
Step-by-step explanation:
0 is greater than -18
Steve prepreformed the chemistry experiment in which divided 5/8 of a box of baking soda evenly among the five bottles he then added vinegar and water teach volatile to make them bubble up like volcanoes how much baking soda do you put in each bottle
Answer:
[tex]\mathbf{ \dfrac{1}{8} \ box}[/tex]
Step-by-step explanation:
Given that:
Steve divided 5/8 of a box evenly among 5 bottles. To determine the amount of baking soda added;
Then, mathematically:
[tex]=\dfrac{5}{8} \ box \div 5[/tex]
[tex]= \dfrac{5}{8} \ box \times \dfrac{1}{5}[/tex]
[tex]\mathbf{= \dfrac{1}{8} \ box}[/tex]
The height of a door is about?
A) 5 Feet
B) 7 Feet
C) 16 Feet
D) 12 Inches
E) 36 Inches
Answer:
B
Step-by-step explanation:
:0 : )
PLEASE HELP! ITS DUE TODAY!!!
Answer:
Step-by-step explanation:
1.24 * 0.15 = 0.0186
As you can see, the numbers are the same, but the order of the decimal is different.
Since the order of the decimal is different, so will the answer.
1,860 and 0.0186 do have the same numbers in them, but since the decimal is located in different spots, then the answer will be different with different values.
You might not see the decimal in 1,860, but it is after the 0.....
1,860.0 ( same thing just added a decimal, but it is the same value)
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Marie joined a book club. She had to pay a one time registration fee of 80.00 and then 3.00 per book.How much did it cost her to buy 15 books
Answer:
It cost her this much = 3×15 = 45
Answer:
It cost her 45 dollars to buy 15 books
Step-by-step explanation:
80+ 3(15)=?
80 First time registration fee + 45 dollars to buy 15 books