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nordsb [41]
3 years ago
14

Help Help Help ....... please answer this question fast fast......

Mathematics
2 answers:
ICE Princess25 [194]3 years ago
7 0

Answer:

5 m

Step-by-step explanation:

The volume (V) of a square based pyramid is

V = \frac{1}{3} Ah ( A is the area of base and h the height ), thus

\frac{1}{3} A × 12 = 100, that is

4A = 100 ( divide both sides by 4 )

A = 25

Hence s² = 25 ← s is the side of square base

Take the square root of both sides

s = \sqrt{25} = 5

Elan Coil [88]3 years ago
3 0

V = Ab·h : 3

100m³ = Ab·12m : 3

300m³ = Ab·12m

Ab = 300m³/12m

= 25m²

Ab = 25m² = L²

L = √25m²

L = 5m

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Question 13
kicyunya [14]

Answer:

The c intercept is 42

The t intercepts are: 6, -1 and 7

Step-by-step explanation:

Given

c(t) = (t - 6)(t +1)(t-7)

Solving (a): The c intercept

Simply set t to 0

c(t) = (t - 6)(t +1)(t-7)

c(0) = (0 - 6)(0 +1)(0-7)

c(0) = (- 6)(1)(-7)

c(0) = 42

Solving (b): The t intercept

Simply set c(t) to 0

c(t) = (t - 6)(t +1)(t-7)

(t - 6)(t +1)(t-7) = 0

Split

t - 6= 0,\ \ t +1= 0,\ \ t-7 = 0

Solve for t

t = 6,\ \ t =-1,\ \ t=7

4 0
3 years ago
Simplify -3y(y + 2)^2 - 5 + 6y
ser-zykov [4K]

Answer:

That'll help a lot of people in the future ^.^

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Tara earns $8.00 per hour for babysitting. Which expression represents how much Tara earns for h hours of babysitting? 4 83​
Westkost [7]

Answer:

Total amount Tara earned for babysitting for h hours = 8h

Step-by-step explanation:

Amount earned per hour for babysitting = $8.00

Number of hours of babysitting = h hours

Total amount Tara earned for babysitting for h hours =

Amount earned per hour for babysitting × Number of hours of babysitting

= 8 × h

= 8h

Total amount Tara earned for babysitting for h hours = 8h

6 0
3 years ago
Find the real numbers x and y.<br> 27+yi= 11-x + 4i
Korvikt [17]

\quad \huge \quad \quad \boxed{ \tt \:Answer }

\qquad \tt \rightarrow \:x = -16

\qquad \tt \rightarrow \: y =4

____________________________________

\large \tt Solution  \: :

\qquad \tt \rightarrow \: 27 + yi = 11 - x + 4i

\qquad \tt \rightarrow \: yi + x = 11 + 4i - 27

\qquad \tt \rightarrow \: x + yi =  - 16 + 4i

By equating both equations we get :

\qquad \tt \rightarrow \: x =  - 16

\qquad \tt \rightarrow \: y = 4

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

8 0
2 years ago
1.)The product of five and a number x
lina2011 [118]

Answer:

1.) 5x

2.) 2/3x^2

3.) 53 + x

4.) 32d

5.) 19 + 2x

1.) The product of five and a number x

2.) The product of twenty four and a number x

3.) The sum of a number y and nineteen

4.) The difference of a number x and two

4.) A number y divided by two / The quotient of a number y and two

Explanation:

Keep in mind the following definitions:

  • Sum means addition +
  • Difference means subtraction -
  • Product means multiplication *
  • Square means ^2

4 0
3 years ago
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