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3 years ago

Make a pattern starting at -7 with term to term rule of +2

Mathematics

1 answer:

sammy [17]3 years ago

8 0

Answer:

-7, - 5, - 3, - 1, 1, 3

Step-by-step explanation:

The question basically means that the 1st number in the number line pattern is - 7. And that the difference between the consecutive terms (e. G. Term 1 and term 2, term 3 and term 4...) is +2.

Basically term 2 is (Term 1) +2

Term 3 is (term 2) +2

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Denise has $270 in her savings adcount. She wants to save at least $800.

Nadusha1986 [10]

Answer:

c) d is greater than or equal to 530

Step-by-step explanation:

Hope this helps!

6 0

3 years ago

An airplane climbs 100 feet during the first second after takeoff. In each succeeding second it climbs 100 feet more than it cli

tigry1 [53]

Answer:

15 seconds.

Step-by-step explanation:

∵ The distance covered by plane in first second = 100 ft,

Also, in each succeeding second it climbs 100 feet more than it climbed during the previous second,

So, distance covered in second second = 200,

In third second = 300,

In fourth second = 400,

............, so on....

Thus, the total distance covered by plane in n seconds = 100 + 200 + 300 +400......... upto n seconds

$=\frac{n}{2}(2\times 100 + (n-1)100)$ ( Sum of AP )

$=\frac{n}{2}(200+100n-100)$

$=\frac{n}{2}(100+100n)$

$=50n+50n^2$

Suppose the distance covered in n seconds is 12,000 feet,

$\implies 50n+50n^2=12000$

$n+n^2=240$

$n^2+n-240=0$

$n^2+16n-15n-240=0$

$n(n+16)-15(n+16)=0$

$(n-15)(n+16)=0$

$\implies n=15\text{ or }n=-16$

∵ n can not be negative,

Hence, after 15 seconds the plane will reach an altitude of 12,000 feet above its takeoff height.

6 0

3 years ago

Read 2 more answers

3x to the 2 power -17+2x+5-x

rewona [7]

Answer: $=3x^{2^{x-12}}$

Step-by-step explanation:

$3x^{2^{-17+2x+5-x}}$

Simplify:

$=3x^{2^{x-12}}$

5 0

3 years ago

Is 56/72 and 7/9 proportional

Andreas93 [3]

Answer:

Yes. They are proportional.

Step-by-step explanation:

$\frac{56}{72} =\frac{7}{9}$

$0.777=0.777$

The left side 0.777 is equal to the right side 0.777, which means that the given statement is always true.

True

4 0

2 years ago

Which formula is best used to prove that a figure has congruent sides?

inysia [295]

Answer:

a) Distance formula

Step-by-step explanation:

Generally, if you want to show lengths are the same, it is useful to use a formula for length: the distance formula.

5 0

2 years ago