Answer:
a8 = 512.
Step-by-step explanation:
This is geometric sequence with common ratio r = 2 and first term a1 = 4.
nth term = a1 r^(n-1)
So a8 = 4 2(^8-1)
= 4 * 2^7
= 4*128 = 512.
n − 23 ≥ 19 solve the inequality
Answer:
N greater than or equal to 42
Step-by-step explanation:
You have to look at the equation and then add 23 to both of the sides. After you will get 42 and drop down everything.
Will give brainliest screenshot Will give brainliest screenshot Will give brainliest screenshot Will give brainliest screenshot attached
Answer:
one 5 and 2 ones hope this will help u
Answer:
One and five should be the answer.
A rectangle has a perimeter of 38+x 38+x centimeters. The rectangle has a length of 3x−2 3x−2 centimeters and a width of x centimeters. What is the length of the rectangle? A. Substitute the dimensions of the rectangle info the perimeter formula P=2w+2l P=2w+2l b. Solve for x. C. Find the length of the rectangle.
Answer:
The length of the rectangle is 6 centimeters
Step-by-step explanation:
The perimeter of a rectangle =
P = 2L + 2W
A rectangle has a perimeter of 38+x centimeters. The rectangle has a length of 3x−2 centimeters and a width of x centimeters.
Hence:
38 + x = 2(3x - 2) + 2(x)
38 + x = 6x - 4 + 2x
Collect like terms
38 + 4 = 6x + 2x - x
42 = 7x
x = 42/7
x = 6 centimeters
The length of the rectangle is 6 centimeters
In Carna's desk drawer, there are 16 paper clips and 20 elastic bands. In Noelia's office supply tray, there are 10 paper clips and 13 elastic bands. Who has a lower ratio of paper clips to elastic bands?
Answer:
Carna has a lower ratio of paper clips to elastic bands
0.2
Step-by-step explanation:
step one
given data
In Carna's desk drawer
number of paper clips 16
number of elastic band= 20
ratio of paper clips to elastic bands
16:20= 1/5 =0.2
Noelia's office supply tray
number of paper clips 10
number of elastic band= 13
ratio of paper clips to elastic bands
10:13= 0.76
Carna has a lower ratio of paper clips to elastic bands
0.2
Am i right???
plss check and dont lie
will give brainliest
Answer:
by the looks of it yeah you are
Step-by-step explanation:
Drag and drop the answer into the box to match each point to its
coordinates.
Point A is [tex](-\frac{1}{2},-\frac{1}{4})[/tex]
Point B is [tex](-2\frac{1}{2},1\frac{1}{2})[/tex].
Point C is [tex](\frac{1}{4},\frac{1}{2})[/tex].
Simple!
Im stuck again I SUCK AT MATH please help!!
Answer:
2 does not belong
Step-by-step explanation:
We know that 2 cups of orange juice make 3 cups of fruit punch. So 2/3 cups of orange juice makes 1 cup of fruit punch. Due to this, you know that 2/3 belongs.
At the craft store, Bill bought a bag of orange and purple marbles. The bag contained 40 marbles, and 90% of them were orange. How many orange marbles did Bill receive?
Answer:
36
Step-by-step explanation:
Answer:
36 orange marbles
Step-by-step explanation
40x.90= 36
help me find x is this question
Answer:
12.25
Step-by-step explanation:
You have to work it out like if it was a ratio.
basically you need to make 7/x equal to 4/7
to do this you divide 4 by 7 and the divide 7 by the answer. This will make x equal to 12.25
Consider the scenario, and use unit rates to determine the better deal.
Nancy’s store is selling pens in bundles of 8 for $2.56. Joe’s store is selling the same pens in bundles of 6 for $2.28. Which store has the better deal?
Answer:
Nancy’s Store
Step-by-step explanation:
To find which store has a better deal we are going to have to find the unit price per pen. To do this we do the following:
2.56/8 and 2.286 after doing both divisions we find that the cost of price per pens is .32$ from Nancy and .38$ from Joe.
PLEASE GIVE ME AN ANSWER QUICKLY! Hiroshi spends 30 minutes on history homework , 60 minutes on English homework, and x minutes on math homework. One fourth of his total homework time is spent on math. Which equation can be used to find the amount of time Hiroshi spends on his math homework?
A. 1/4 (x+30+60)=x
B. 1/4 (x)=x(30+60)
C. 1/4x(30+60)=x
D. 1/4(x)=(30+60)
Answer:
A
Step-by-step explanation:
He spends:30 mins on History60 mins on Englishx mins on mathso the total time he spends is [tex](TotalTime)minutes=(30+60+x)minutes[/tex] one fourth of this is his math time, since x is math time, then we have [tex]\frac{1}{4}(TotalTime)minutes=(x)minutes[/tex] But we know what totaltime in minutes is so [tex]\frac{1}{4}(30+60+x)minutes=(x)minutes[/tex] or simply: [tex]\frac{1}{4}(30+60+x)=x[/tex]Which ones form a square?
Answer:
the first one
Step-by-step explanation:
A function is defunded by f(x)=x/4. What is f(-8)?
pls help :(
1010 rubber stamps cost $ 10.30 $10.30dollar sign, 10, point, 30. Which equation would help determine the cost of 2 22 rubber stamps? Choose 1 answer:
Answer: See explanation
Step-by-step explanation:
Your question isn't well written. Let's say 10 rubber stamps cost $ 10.30. Which equation would help determine the cost of 22 rubber stamps.
Based on the information in the question, the equation will be:
= $10.30/10 × 22
Therefore, to solve it further will be:
= $10.30/10 × 22
= $1.03 × 22
= $22.66
Can someone help me with 1,2,3
Answer:
I think its
1. AC=14
2.x=6
3.x=4
Please help me!!!!! I’m confused
Answer:
means you divide.
Step-by-step explanation:
A positive you would multiply and a negative you divide.
Does that make sense>
what is the square root of 16
Answer:
the square root of 16 is 4
Step-by-step explanation:
Help please!! This is hw and it’s due soon.
Answer:
B
Step-by-step explanation:
give the new coordinates. Square WXYZ with vertices W(1,7), X(6,5),
Y(4,0), and Z(-1, 2): (x, y) = (x-7, y-6)
Given:
The vertices of square WXYZ are W(1,7), X(6,5), Y(4,0), and Z(-1, 2).
Consider the rule of transformation is [tex](x, y)\to (x-7, y-6)[/tex].
To find:
The new coordinates.
Solution:
We have,
[tex](x, y)\to (x-7, y-6)[/tex]
Using the above rule of transformation, we get
[tex]W(1, 7)\to W'(1-7, 7-6)=W'(-6,1)[/tex]
[tex]X(6, 5)\to X'(6-7, 5-6)=X'(-1,-1)[/tex]
[tex]Y(4, 0)\to Y'(4-7, 0-6)=Y'(-3,-6)[/tex]
[tex]Z(-1, 2)\to Z'(-1-7, 2-6)=Z'(-8,-4)[/tex]
Therefore, the new vertices are W'(-6,1), X'(-1,-1), Y'(-3,-6) and Z'(-8,-4).
What is the height of the prism shown below?
25
13
7
10
Complete the equation of the line whose interpret is (9.0) and slope is -2. Remember to use y=mx+b format
Answer:
y = - 2x + 18
Step-by-step explanation:
Step 1:
y = mx + b Slope Intercept Form
Step 2:
y = - 2x + b Input Slope Value
Step 3:
0 = - 2 ( 9 ) + b Input x and y values
Step 4:
0 = - 18 + b Multiply
Step 5:
b = 18 Add 18 on both sides
Answer:
y = - 2x + 18
Hope This Helps :)
There are 88 students in 4 classes. If there are equal number of students in each class, how many students per class?
Answer:88
Step-by-step explanation: cause it say 88 students in class then it say how many students per class its 88 i think
Answer:
22
Step-by-step explanation: divided 88 by 4
Jane made a mistake when writing down a mutliplication , and she multiplied by 54 instead of 45. Her answer was 198 more than it should have been. What number did she multiply 54 by?
Answer:
22
Step-by-step explanation:
Given that:
Let number multiplied by 54 = x
Let output = y
x * 54 = y + 198
x * 45 = y
54x = y + 198 - - - (1)
45x = y - - - (2)
Put y = 45x in (1)
54x = 45x + 198
54x - 45x = 198
9x = 198
x = 22
Number multiplied by 54 is 22
The ice cream shop sells sundaes for $2 each and banana splits for $3 each. One day, the shop sold 8 more sundaes than banana splits and also made a total of $156. Which system of equations represents the situation?
Answer:
[tex]s = 8+b\\2s+3b=156[/tex]
Step-by-step explanation:
To find which systems of equation represents the situation, we can break down the key information and create two variables:
Variables:
Let [tex]s[/tex] = number of sundaes sold.
Let [tex]b[/tex] = number of banana splits sold.
Given information:
Sundae: [tex]\$2[/tex]
Banana Splits: [tex]\$3[/tex]
8 more sundaes sold than banana splits. This can be expressed by [tex]s=8+b[/tex].
Total sold was [tex]\$156[/tex]. This can be expressed as [tex]2s+3b=156[/tex].
∴ The systems of equation that expresses this situation are [tex]s=8+b[/tex] and [tex]2s+3b=156[/tex].
Hope this helps :)
What is the equation of the line that passes through the point (7,−3) and has an undefined slope
Answer:
The equation of the line that passes through the point (7,−3) and has an undefined slope will have the equation: x = 7.
Step-by-step explanation:
As the line has an undefined slope, meaning the line is vertical.
As we know that the vertical line passes through (7, -3), so it can never pass through any x-value other than x = 7, although it can pass through infinite y-values.
so the equation of line will be: x = 7
Therefore, the equation of the line that passes through the point (7,−3) and has an undefined slope will have the equation: x = 7.
Which of the following in the picture is true about the function f(x) = (x-7)^2 + 9
Answer:
A).a. The vertex is in quadrant IV and the graph opens down.
Step-by-step explanation:
SOMEONE PLZ HELP! ALSO DONT SPAM!
Answer
A : (1,-5)
Explanation
Dude, I'm pretty sure the stuff is used to throw you off. Just find the coordinates.
Answer:
A : (1,-5)
Step-by-step explanation:
The price of a smart phone was reduced from $800 to $500. By what percentage was the price of the phone reduced?
One week, Isabella bought two bags of apples and three bags of oranges. The next week, she bought one bag of apples and two bags of oranges. If a represents the cost of each bag of apples and are represents the cost of each bag of oranges, which expression could Isabella used to calculate the difference between the amount she spent each week?
A: 3a-r
B: 3a-r
C: (2a-3r)-(a-2r)
D: (2a+3r)-(a+2r)
Answer:
c
Step-by-step explanation:that is the answer
I start with 100 and subtract 3 repeatedly. (100 - 3, 97 - 3, 94 - 3 and so on). How many subtractions would I have to do to get the FIRST single-digit number?
Using an arithmetic sequence, it is found that you would need to do 32 subtractions
In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.
The nth term of an arithmetic sequence is given by:
[tex]a_n = a_1 + (n - 1)d[/tex]
In which [tex]a_1[/tex] is the first term.
In this problem:
Starts with 100, which is the first term, hence [tex]a_1 = 100[/tex].Subtracts 3, which is the common difference, hence [tex]d = 3[/tex]Then:
[tex]a_n = a_1 + (n - 1)d[/tex]
[tex]a_n = 100 - 3(n - 1)[/tex]
[tex]a_n = 103 - 3n[/tex]
To get a single-digit number, we need that:
[tex]a_n \leq 9[/tex]
Hence, solving the inequality:
[tex]103 - 3n \leq 9[/tex]
[tex]-3n \leq -94[/tex]
[tex]3n \geq 94[/tex]
[tex]n \geq \frac{94}{3}[/tex]
[tex]n \geq 31.3[/tex]
Rounding up, 32 subtractions need to be done.
A similar problem is given at https://brainly.com/question/23842987