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IceJOKER [234]
3 years ago
6

Get brainly if right!! Plsss help

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0

Step-by-step explanation:

t8 = a1 + (n - 1)*d

t8 = 17

17 = a1 + 7*d

t12 = 25

25 = a1 + 11d

17 = a1 + 7d Subtract

8 = 4d Divide by 4

8/4 = 4d/4

2 = d

17 = a1 + 7d

17 = a1 + 7*2

17 = a1 + 14 Subtract 14

3 = a1

Sum 20 terms

The 20 term = a1 + 19*2

The 20 term = 3 + 38

= 41

Sum = (a1 + a20) * 20 / 2

Sum = (3 + 41)* 20/2

Sum = 44 * 10

Sum = 440

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If g(a) = (a + 4)2 and h(b) = 2b - 7,<br> what is h(g(2))?
masha68 [24]

First find g(2).

g(2) = (2+4)2 = 12

Because g(2) is 12, h(g(2)) = h(12).

h(12) = 2(12)-7 = 17

answer: 17

4 0
3 years ago
A snack mix contains almonds, chocolate chips, raisins, and pretzels. One-fourth of the mix is almonds, 5% of the mix is chocola
Lady_Fox [76]

Answer:

25%

Step-by-step explanation:

if 1/4 of the mix is almonds and 5% percent is chocolate chips than the answer is 25

4 0
3 years ago
Phil and Stacy create repeating patterns using shapes. Phil's rule is "oval, square," and Stacy's rule is "oval, square, circle,
BigorU [14]

Using proportions, it is found that both patterns have the same number of ovals.

  • This question is solved by <em>proportions</em>, using rule of three.

For Phil:

  • There are 96 shapes.
  • 1 of each two shapes is oval, hence:

1 oval - 2 shapes

x oval - 96 shapes

Applying cross multiplication:

2x = 96

x = \frac{96}{2}

x = 48

For Stacy:

  • There are 96 shapes.
  • 2 of each two shapes are oval, hence:

2 oval - 4 shapes

x oval - 96 shapes

Applying cross multiplication:

4x = 192

x = \frac{192}{4}

x = 48

Both patterns have the same number of ovals.

To learn more about proportions, you can take a look at brainly.com/question/24372153

6 0
3 years ago
11.8 x 1/100=<br> answer with the product. Correct answer will be awarded branliest
maksim [4K]

Answer:

0.118

Step-by-step explanation:

11.8 = 118/10

= 118/10 × 1/100

= 118× 1/10×100

= 118/1,000

= 0.118

4 0
3 years ago
Please help need 1 more to passss guys !!!!!!!!!!!!!
Drupady [299]
A) 40
b) 3
c) 5

Hope this helps
7 0
3 years ago
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