All categories

3 years ago

30 points please help thanks❤❤❤❤❤

Mathematics

2 answers:

schepotkina [342]3 years ago

5 0

I don’t know but I still got the point

EleoNora [17]3 years ago

3 0

Answer:

Im pretty sure the first one is -8 because -2 to the third power is- 2 times -2 times 2 and that equals 8.

Step-by-step explanation:

You might be interested in

Solve this (6 + 5) + 65

Paraphin [41]

(6+5) + 65 =

11 + 65 =

7 0

3 years ago

Read 2 more answers

A ball is thrown vertically upwards from the ground. It rises to a height of 10m and then falls and bounces. After each bounce,

Citrus2011 [14]

${\huge{\fcolorbox{yellow}{red}{\orange{\boxed{\boxed{\boxed{\boxed{\underbrace{\overbrace{\mathfrak{\pink{\fcolorbox{green}{blue}{Answer}}}}}}}}}}}}}$

(i)

$\sf{a_n = 20 \times {( \frac{2}{3} )}^{n - 1} }$

(ii)

$\sf S_n = 60 \{1 - { \frac{2}{3}}^{n} \}$

Step-by-step explanation:

$\underline\red{\textsf{Given :-}}$

height of ball (a) = 10m

fraction of height decreases by each bounce (r) = 2/3

$\underline\pink{\textsf{Solution :-}}$

(i) We will use here geometric progression formula to find height an times

${\blue{\sf{a_n = a {r}^{n - 1} }}} \\ \sf{a_n = 20 \times { \frac{2}{3} }^{n - 1} }$

(ii) here we will use the sum formula of geometric progression for finding the total nth impact

$\orange {\sf{S_n = a \times \frac{(1 - {r}^{n} )}{1 - r} }} \\ \sf S_n = 20 \times \frac{1 - ( { \frac{2}{3} })^{n} }{1 - \frac{2}{3} } \\ \sf S_n = 20 \times \frac{1 - {( \frac{2}{3}) }^{n} }{ \frac{1}{3} } \\ \sf S_n = 3 \times 20 \times \{1 - ( { \frac{2}{3}) }^{n} \} \\ \purple{\sf S_n = 60 \{1 - { \frac{2}{3} }^{n} \}}$

4 0

2 years ago

WILL MARK AS BRAINIEST IF RIGHT

Andre45 [30]

Answer:

Step-by-step explanation:

5 0

3 years ago

Please help 15 points will give brainliest

torisob [31]

Answer:

Step-by-step explanation:

m∠1 = 3 times of m∠2

m∠2 = (1/3) times of ∠1

$= \dfrac{1}{3}*72\\\\= 24$

m∠2 = 24°

6 0

3 years ago

Help will mark brainliest.......................................

tekilochka [14]

I'm not gonna give the answer because you have to solve it. Sorry. But I'll help you get it.

Step 1: solve the equation for each angle
Step 2: Add the totals from each angle
Step 3: Divide the total by 360
Step 4: You got your answer

I hope this helped! I'm sorry I answered really late.

3 0

3 years ago

Read 2 more answers