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Xelga [282]
3 years ago
8

10pts and I’ll mark brainliest! (Also EXPLAIN the reasoning you used to write the expression)

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

9514 1404 393

Answer:

  area = x(3x +10)

Step-by-step explanation:

The lengths of the unmarked sides are found as the difference between the lengths of the parallel marked sides.

  horizontal unmarked = (2x+15) -x = x +15

  vertical unmarked = (2x -5) -(x -5) = x

The area of the figure is the sum of the areas of parts of the figure. The area can be divided several ways. One is shown in the attachment, along with the areas of the parts and of the whole.

The whole area is ...

  x(2x -5) +x(x +15) = x((2x -5) +(x +15)) = x(2x -5 +x +15) = x(3x +10)

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To make a small vase, Elisa uses no more than 4.5 ounces of clay. To make a large vase, she uses at least 12 ounces of clay. Whi
Sveta_85 [38]

Answer: d. 4.5\leq c\text{ or }x\leq12

Step-by-step explanation:

Let the number of ounces of clay that Elisa uses to make one vase of either size denotes by 'c'

Given : To make a small vase, Elisa uses no more than 4.5 ounces of clay.

i.e. 4.5\leq c

Also, To make a large vase, she uses at least 12 ounces of clay.

i.e. c\leq12

Then , the compound inequality represents the number of ounces of clay that Elisa uses to make one vase of either size will be :-

4.5\leq c\text{ or }c\leq12

5 0
3 years ago
Read 2 more answers
The value of Yong's investment account increases at a rate that is proportional at any time to the value of the account at that
gavmur [86]

Using an exponential function, it is found that the value of Yong's investment account after 7 years is given by:

(C) $2363

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change.

Her account was worth $2000 initially, and it increases by 10%, percent every 4 years, hence, it is modeled by:

y(t) = 2000(1.1)^{\frac{t}{4}}

After 7 years, the amount is:

y(7) = 2000(1.1)^{\frac{7}{4}} = 2363

Hence option C is correct.

More can be learned about exponential functions at brainly.com/question/25537936

8 0
3 years ago
Even betteerrrr u guys like it &lt;3
frez [133]

Answer:

ummm

Step-by-step explanation:

what's that???

quiet didnt get it lol¿

7 0
3 years ago
All the information in the photo.
a_sh-v [17]

Answer:

Two angles are called complementary when their measures add to 90 degrees. ∠1 is 60 degrees ∠2 is 30 degrees so if you add it up, the answer is  90 degrees.

∠4 + ∠3 = answer has to be 90 degrees to call it a complementary angle

30 degrees + 60 degrees = 90 degrees

6 0
3 years ago
Y is inversely proportional to x<br> when y=7 , x=9<br> work out an equation connecting y and x
rusak2 [61]

Answer: y = 63/x

Step-by-step explanation:

This is variation, now to the question.

y <> 1/x --------------------1

the <> is called the constant of proportionality, which will now be replaced by a constant (k)

y = k/x ------------------- 2

Given that y = 7 and x = 9, we now find k , then use it to form an equation to connect y and x.

Back to 2

7 = k/9, therefore

K = 63. Now put thus back in equation 2

y = 63

---

x

Therefore, the equation connecting y and x is

y = 63/x.

5 0
4 years ago
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