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2 years ago

12. The base of a pyramid is a

Mathematics

2 answers:

NeTakaya2 years ago

7 0

35 cubic inches is right

maks197457 [2]2 years ago

4 0

Answer:

35 cubic inches

Step-by-step explanation:

The volume of a pyramid is $\frac{1}{3} bh$ , where b = base and h = height. To find the area of the base, we multiply 3 by 5 and then divided by 2.

3 × 5 = 15
15 ÷ 2 = 7.5

Next, we multiply 7.5 by 14.

7.5 × 14
105

Lastly, we divide by 3.

105 ÷ 3
35

Therefore, the answer is 35 cubic inches.

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B+F=2.20 B+S=1.40 F+S=2.60

astra-53 [7]

Answer:

???? wala pong question

Step-by-step explanation:

........sana po makatulong pero di ko po alam po

5 0

3 years ago

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

1 year ago

If the mean of 4 and x is the same as the mean of 4,10, and x what is the value of x?

storchak [24]

A. (4+16)/2 = (4+10+16)/3 =10

8 0

3 years ago

Mikayla caught a value pack of crackers for $6.72. The value pack had 24 individually wrapped crackers packages. Solve 24x = $6.

Licemer1 [7]

Answer:

0.28$

Step-by-step explanation:

divide

7 0

3 years ago

I Really Need Help!!!!! :)

DerKrebs [107]

Answer:

Hence first graph is the correct answer.

T I

1 28

2 56

3 84

4 112

Step-by-step explanation:

Given that initial amount P = $400

Simple rate of interest = R = 7% = 0.07

Time t= 1,2,3,4 years.

Then apply Simple interest formula to find the total interest earned in the given years.

I=PRT

for t=1 year

I=PRT=400(0.07)(1)=28

for t=2 year

I=PRT=400(0.07)(2)=56

for t=3 year

I=PRT=400(0.07)(31)=84

for t=4 year

I=PRT=400(0.07)(4)=112

Now we have table as shown below:

T I

1 28

2 56

3 84

4 112

Graphing these points we see that obtained graph best matches with First choice .

Hence first graph is the correct answer.

7 0

3 years ago