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Likurg_2 [28]
3 years ago
9

On the first math test, Keiko answered 19 out of 25 questions correctly. On the second test she got 17 out of 20 correct. On whi

ch test did she get a better grade? Look at the table. how are 50, 75 and 100 related to 25?
Mathematics
1 answer:
jenyasd209 [6]3 years ago
7 0

Answer:

shegot a better score on the second test

50 is double of 25

75is 3 times 25

100 is 4 times 25

Step-by-step explanation:

19 times 4= 76

17 times 5= 85

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What is the recursive formula for this arithmetic sequence 6, -24, 96, -384
Artemon [7]

Answer:

Option A. a_{1} =6  a_{n}= a_{n-1}(-4)

Step-by-step explanation:

The given sequence in the question is 6,-24,96,-384.......n

and we have to give the recursive formula for this arithmetic sequence.

We can re write the sequence to make it more simpler

6,6(-4),(-24)(-4),(96)(-4).......n terms

Now we can say a_{1} = 6

and a_{n}= a_{n-1}(-4)

Therefore the recursive formula of the sequence is a_{1} = 6

a_{n}= a_{n-1}(-4)

7 0
3 years ago
Solve for x<br> Please.
Sonja [21]

Answer:

B

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find x

tan64° = \frac{opposite}{adjacent} = \frac{x}{11}

Multiply both sides by 11

x = 11 × tan64° = 22.55 → B

4 0
3 years ago
Two right triangles are graphed on a coordinate plane. One triangle has a vertical side of 4 and a horizontal side of 10. The ot
Dahasolnce [82]
They are similar triangles because they are both right triangles
4 0
3 years ago
Each treasure hunt team will have 5 people. So far 42 people have signed up. How many more people are needed to make every team
julia-pushkina [17]

Answer:

1) 3 more people

2) 9 teams

Step-by-step explanation:

The divisibility rule for 5 is that it must end in 5 and 0

so the next one is 45, so 3 more people

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

45/5=9 teams

3 0
1 year ago
Please Help and please show work. ​
vampirchik [111]

Answer:

17 ft

Step-by-step explanation:

2.5 / 8.5 = 5/p cross multiply  

2.5 p = 42.5 divide both sides by 2.5

3 0
3 years ago
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