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stepladder [879]
2 years ago
12

Find the area. Answer without units.I need this asap thx (:

Mathematics
2 answers:
hram777 [196]2 years ago
7 0

Answer:

198.4

Step-by-step explanation:

Right side is a rectangle   12.8 * 12.8 = 163.84 cm^2

Left side is triangle   area = 1/2 Base * height = 1/2 * 12.8 * (18.2-12.8) =

         34.56 cm^2

summed = 198.4  cm^2

finlep [7]2 years ago
5 0

Answer:

I think the answer is 43.8

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Explain how solving -7y > 161 is different from solving 7y > -161.
Sever21 [200]

Answer:

When the coefficient (number before the variable) is negative, you have to switch the inequality symbol after you divide.

4 0
3 years ago
Estimate the number of feet of wallpaper border you need to buy to place around the outside of the entire room
Mariana [72]
Is there more? i'm confused

8 0
3 years ago
Write a recursive formula and an explicit formula for the following arithmetic sequence.
xenn [34]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the sequence

11, 13, 15, 17, 19, ...

Determining the Recursive formula:

We know that a recursive formula is termed as a formula that specifies each term of the given sequence using the preceding terms.

From the given sequence it is clear that every term can be obtained by adding two to the previous term.

i.e. 13 = 11+2, 15 = 13+2, 17 = 15+2, 19 = 17+2

so

aₙ₊₁ = aₙ+2, for n ≥1

Therefore, a recursive formula is:

  • aₙ₊₁ = aₙ+2, for n ≥1

Determining the Explicit formula:

Given the sequence

11, 13, 15, 17, 19, ...

An arithmetic sequence has a constant difference 'd' and is defined by  

a_n=a_1+\left(n-1\right)d

computing the differences of all the adjacent terms

3-11=2,\:\quad \:15-13=2,\:\quad \:17-15=2,\:\quad \:19-17=2

The difference between all the adjacent terms is the same and equal to

d=2

also

a_1=11

so substituting d=2, a_1=11 in the nth terms

a_n=a_1+\left(n-1\right)d

a_n=2\left(n-1\right)+11

a_n=2n+9

Therefore, the Explicit formula is:

a_n=2n+9

4 0
3 years ago
Help ME!!!! where could you insert parentheses in 310-20/2x5+13 so that the answer would be 130?
tatiyna
310-20(2x5)+13 I think
7 0
3 years ago
If k is the incenter of def find each measure
3241004551 [841]

Answer:

https://ohsrehak.weebly.com/uploads/5/4/6/9/54699399/5-1_bisectors_of_triangles_solutions.pdf   paste the click

Step-by-step explanation:

3 0
3 years ago
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