1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
3 years ago
11

In an arithmetic sequence, the seventh term is −9 and the nineteenth term is 39.

Mathematics
1 answer:
Stella [2.4K]3 years ago
3 0

Answer:

37.5% that is the answer

Step-by-step explanation:

You might be interested in
Please answer and help me on this question!​
Nady [450]
<h3>Answer: 10.1 cm approximately</h3>

=====================================================

Explanation:

The double tickmarks show that segments DE and EB are the same length.

The diagram shows that DB = 16 cm long

We'll use these facts to find DE

DE+EB = DB

DE+DE = DB

2*DE = DB

DE = DB/2

DE = 16/2

DE = 8

-------------

Now let's focus on triangle DEC. We just found the horizontal leg is 8 units long. The vertical leg is EC which is unknown for now. We'll call it x. The hypotenuse is CD = 9

Use the pythagorean theorem to find x

a^2+b^2 = c^2

8^2+x^2 = 9^2

64+x^2 = 81

x^2 = 81 - 64

x^2 = 17

x = sqrt(17)

That makes EC to be exactly sqrt(17) units long.

If you follow those same steps for triangle ADE, then you'll find the missing length is AE = 6

---------------

So,

AC = AE+EC

AC = 6 + sqrt(17)

AC = 10.1231056256177

AC = 10.1 cm approximately

4 0
3 years ago
3+p/2=6 How do I solve this?
Diano4ka-milaya [45]

\boxed{\underline{\bf \: ANSWER}}

\sf\frac { 3 + p } { 2 } = 6 \\

Multiply both sides by 2.

\sf \: 3+p=6\times 2

Multiply 6 and 2 to get 12.

\sf \: 3+p=12

Subtract 3 from both sides.

\sf \: p=12-3

Subtract 3 from 12 to get 9.

\boxed{\bf \: p=9}

____

Hope it helps.

RainbowSalt2222

5 0
3 years ago
Larry bought several boxes of baseball cards at a yard sale and ended up with 204
AysviL [449]

Answer:

51

Step-by-step explanation:

204/4=51

6 0
3 years ago
Read 2 more answers
VERY EASY QUESTION. Write out this equation: ten times the sum of half a number and 6 is 8
bija089 [108]

Answer:

x

=

58

5

Step-by-step explanation:

10 times:

→

10

×

The sum of:

→

10

×

(

?

+

?

)

half a number:

→

10

×

(

x

2

+

?

)

and 6:

→

10

×

(

x

2

+

6

)

is 8 :

→

10

×

(

x

2

+

6

)

=

8

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

10

(

x

2

+

6

)

=

8

Multiply out the bracket

5

x

+

60

=

8

Subtract 60 from both sides

5

x

=

58

Divide both sides by 5

x

=

58

5

6 0
3 years ago
Read 2 more answers
Maths worksheet help
MA_775_DIABLO [31]
                     math worksheet
1 x+2=4
2 x+3+x=7
3 find x                                                                 here it is -   x
7 0
3 years ago
Other questions:
  • How many different factors does the number 40 have?
    11·1 answer
  • Trigonometric ratios in rig triangles pls help
    15·1 answer
  • I don’t know what to do
    10·1 answer
  • Find the number, if 80% of it is 6.4
    13·1 answer
  • I don't know how to find the answer and draw where
    10·1 answer
  • Help plz I’ll mark brainliest
    7·1 answer
  • Noah solved three math problems. The first problem took him 1 minute. The second problem took him 30% longer than the first prob
    11·1 answer
  • Struggling a lot pls help!!!!! ASAP
    5·1 answer
  • At the luau, a vender was selling 5 leis for $25. what is the unit price?
    9·1 answer
  • If x = 0, then
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!