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2 years ago

1+4=5 2+5=12 3+6=21 8+11=

Mathematics

2 answers:

Naily [24]2 years ago

6 0

21+8+11 equals to 40.
40 is your answer

ICE Princess25 [194]2 years ago

6 0

1 + 4 = 5

2 + 5 = 7 but you have to add the 5 from the previous addition problem, and it'll give you 12

3 + 6 = 9 but you have to add the 12 from the previous addition problem, and it'll give you 21

If you continue the pattern (4+7, 5+8, 6+9, 7+10) then 8 + 11 will be 96.

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Write an equation for the line that has a slope of 6 and passes through the point 4, 4

Rudik [331]

Answer:

y = 6x - 20

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 6, thus

y = 6x + c ← is the partial equation

To find c substitute (4, 4) into the partial equation

4 = 24 + c ⇒ c = 4 - 24 = - 20

y = 6x - 20 ← equation of line

8 0

3 years ago

Please answer these questions! will mark brainlist!

timofeeve [1]

1st photo....

Yes

Explanation

All when divided becomes 1/3 , so it is proportional...

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2nd photo....

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7 0

2 years ago

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mafiozo [28]

Answer:

Step-by-step explanation:

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4 0

2 years ago

Help I am very bad at math I need answers by tomorrow if you can help please do

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

(a - b)(a +b) = a² - b²

1 - Sin² A = Cos² A

$LHS = \frac{1}{1- Sin A} + \frac{1}{1 + Sin A}\\\\= \frac{1*(1 + Sin A)}{(1- Sin A)(1 + Sin A)} + \frac{1*(1- Sin A)}{(1 + Sin A)(1- Sin A)}\\\\= \frac{1 + Sin A+ 1 - Sin A}{1^{2}- Sin^{2} A}\\\\= \frac{2}{1 - Sin^{2} A}\\\\= \frac{2}{Cos^{2} A}\\\\= 2 Sec^{2} A$

2) Sec² A - Tan² A = 1

$LHS = \frac{1}{Sec A - Tan A}\\\\=\frac{1*(Sec A + Tan A)}{(Sec A - Tan A)(Sec A + Tan A)}\\\\=\frac{Sec A + Tan A}{Sec^{2} A - Tan^{2} A}\\\\=\frac{Sec A + Tan A }{1}\\\\= Sec A + Tan A = RHS\\\\\\$

3) LHS = Cosec² A + Cot² A

= Cosec² A + Cosec² A - 1

= 2Cosec² A - 1 = RHS

$4) LHS = \frac{Sec A}{Cos A}- \frac{Tan A}{Cot A}\\\\ = Sec A*\frac{1}{Cos A}-Tan A*\frac{1}{Cot A}\\\\ = Sec A * Sec A - Tan A * Tan A\\\\= Sec^{2} A - Tan^{2} A \\\\= 1$

3 0

2 years ago

Casey and her two friends made $54 selling lemonade in their neighborhood. They will share their money equally. How much money w

cluponka [151]

To find out how much money Casey and her two friends will each get, we simply need to divide the total amount of income by the amount of people receiving a part of it

54 / 3 = 18

Casey and her two friends each got $18 from their lemonade stand.
Hope that helped! =)

7 0

3 years ago