an artist is arranging tiles in rows to decorate a wall. each new row has 2 fewer tiles than the row below it. if the first row has 23 tiles, how many tiles will be in the 7th row?
Answers
we know that
In an Arithmetic Sequence the difference between one term and the next is a constant
This problem is an Arithmetic Sequence
where
the first term is
and
the common difference is
In general we can write an Arithmetic Sequence as a rule
where
a1 is the first term
d is the common difference
so
Find the term a7
therefore
the answer is
Related Questions
Hannah drew a pattern using only equilateral triangles. Which of the following statements about an equilateral triangle is true?A) the measure of each angle is 60 degreesB) the measure of each angle is 120 degreesC) the measure of one of the angles is 90 degrees D) the measure of one of the angles is more than 180 degreesIs the answer A?
which answer describes the number and type of solutions for the given equation? use the discriminant. x^2 + 8x + 10 = 0.
Employees at electronic stores make 2% of their monthly sales in commission. If Andy sells $3,178 last month what is his commission?
One aluminum can weighs about 1/25 lb. if your school starts a recycling drive, how many cans will your school me to collect to recycle one ton?
Answers
both variables are x
pretend there is an imaginary 1 in front of the x for x squared
3 x 1 = 3
x^2 x X = x^3
this is because when multiplying numbers with the same variable like this problem for instance then you add the squared (2) with the x ( imaginary 1)
so 3x^3 is the answer
The expression 3x times x squared simplifies to 3x³.
We have,
To simplify the expression 3x times x squared, you can multiply the coefficients and combine the variables.
The expression can be written as:
To multiply the coefficients, you multiply 3 and 1, which gives you 3.
To combine the variables, you multiply the x term and the x² term.
When multiplying variables with the same base (in this case, x), you add the exponents. So, can be simplified as
Putting it together, the expression 3x times x squared simplifies to 3x³.
Thus,
The expression 3x times x squared simplifies to 3x³.
Learn more about expressions here:
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Answers
we use the formula a² - 2ab + b² = (a-b)²
(s - 8)² - (11)²
we use the formula a² - b² = (a+b)*(a-b)
(s - 8 )² - (11)²
a² - b²
[ (S - 8) - 11] * [ (S-8) + 11] = [S-19] * [S+3]
Answers
By using the concept of reciprocal of fraction, the result obtained is -
Reciprocal of is
What is reciprocal of a fraction?
At first, it is important to know about fraction.
Suppose there is a collection of objects and a part of the collection has to be taken. The part which is taken is called fraction. In other words, part of a whole is called fraction.
The upper part of the fraction is called numerator and the lower part of the fraction is called denominator.
For example: is a fraction. Here, 4 is the numerator of the fraction and 7 is the denominator of the fraction.
Let p be a fraction. Reciprocal of p is a fraction in which if the fraction is multiplied by p, the result obtained is 1 (multiplicative identity)
Here,
Let the reciprocal of be x
Reciprocal of is
To learn more about fraction, refer to the link-
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This means to get the reciprocal fraction of 13/4 just turn it upside down like this
13/4= 4/13 so ur answer is 4/13
£360 in the ratio 1 : 8
Answers
1/9 x 360 = 40
8/9 x 360 = 320
1
B.
6
C.
10
D.
15
Answers
only x moved
we just see how far x moved
-8 to -7
that is 1 distance
or ou could use distance formula
the distance between the points
(x1,y1) ad (x2,y2) is
D=
points are
(-8,-2) and (-7,-2)
D=
D=
D=
D=
D=1
answe ris A
you run before you jump, and 7-8 is 1 the it is like saying
x 0
0 x there is one space in between the 0's
Answers
1) / divide 195 by 18 to get 10.833.
/ to get the whole number, round up to get '11'.
11 cartons
Lesson 2.8:
3)
5) 6,681 ÷ 53 = 126 with a remainder of 3
Lesson 2.9:
1) / let 'x' equal the inches of snow that reidville gets
/ '12x' equal the inches of snow that greenboro gets
/ you should set up the problem like:
/ add 'x + 12x' to get '13x'.
/ divide both sides by '13'.
/ 5 goes into 13 to get 65. simplify the fraction to '5'.
/ x = 5
Reidville gets 5 inches of snow
2) / let 'x' equal the miles ansley ran in one month
/ you should set up the problem like:
/ add '15x + x' to get '16x'
/ divide both sides by '16'
/ 12 goes into 16 to get 192. simplify the fraction to 12.
/ x = 12
Ansley runs 180 miles (Zack only runs 12)