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2 years ago

Delta math help? I'm stuck please this is very urgent!!!

Mathematics

2 answers:

slavikrds [6]2 years ago

6 0

Answer:

Step-by-step explanation:

axis of symmetry is 1.4 im not sure if im right sorry if im wrong.

Airida [17]2 years ago

4 0

Answer:

the vertex is (-7,-90)

the focus is ( -7, -359/4)= (-7,-89.75)

semi-axis length; 1/4=0.25

focal parameter: 1/2=0.5

eccentricity;1

directrix: y=-361/4

Step-by-step explanation:

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Bezzdna [24]

Answer:

x²-9=x²-3²=(x+3)(x-3)

Step-by-step explanation:

use formula

a²-b²=(a+b)(a-b)

7 0

2 years ago

Complete the table for this equation. y=x+6

weeeeeb [17]

Answer:

Step-by-step explanation:

4 0

1 year ago

13. For the arithmetic sequence: 6, 12, 18, 24,...

serg [7]

a_15 = 90

a_n = 6n

Step-by-step explanation:

Given sequence is:

6, 12, 18, 24,...

First of all we have to find the common difference. The common difference is the difference between consecutive terms of an arithmetic sequence.

Here,

$d=a_2-a_1 = 12-6 = 6\\d=a_3-a_2= 18-12 = 6$

The general form for arithmetic sequence is:

$a_n=a_1+(n-1)d$

Putting the values for a_1 and d

$a_n=6+(n-1)(6)\\a_n=6+6n-6\\a_n=6n$

$a_{15} = 6(15)\\=90$

<u>b) Write an equation for the nth term.</u>

The equation is: a_n=6n

Keywords: Arithmetic sequence, Common Difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

4 0

3 years ago

Which inequality is shown on this number line?

shutvik [7]

Answer:

Less than 26 (>26)

Step-by-step explanation:

3 0

2 years ago

Is 80 to 20 a 75% decrease

gtnhenbr [62]

Answer:

yes it is a 75% decrease

Step-by-step explanation:

since 80-20=60

60/80=6/8=3/4

3/4=75%

8 0

2 years ago

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