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2 years ago

A square pyramid is shown. What is the surface area?

Mathematics

2 answers:

Blizzard [7]2 years ago

4 0

Answer:

C. 31.25 cm²

Step-by-step explanation:

Surface area comprises of:

A = Area of square base + 4(area of triangle faces)
A = 2.5² + 4*1/2*2.5*5= 31.25 cm²

Correct option is C

Leya [2.2K]2 years ago

4 0

Answer:

its 31.25 i took the test and got it right

Step-by-step explanation:

You might be interested in

Jacob can create an app in 24 hours, but if he works together with a friend they can create an app in 16 hours. How long would i

iogann1982 [59]

Answer:

Time taken by his friend to create the app alone = 48 hours.

Step-by-step explanation:

Hours needed by Jacob to create an app = 24 hours

$\text{One hour work of Jacob = }\frac{1}{24}$

Let hours needed by his friend in creating the app alone = x hours

$\text{So, one hour work of his friend = }\frac{1}{x}$

The both can create the app in 16 hours.

$\implies \frac{1}{24}+\frac{1}{x}=\frac{1}{16}\\\\\implies\frac{1}{x}=\frac{1}{16}-\frac{1}{24}\\\\\implies\frac{1}{x}=\frac{24-16}{24\times 16}\\\\\implies \frac{1}{x}=\frac{1}{48}\\\\\bf\implies x = 48$

Hence, Time taken by his friend to create the app alone = 48 hours.

7 0

2 years ago

Assignment: Multiply and divide monomials

Anna71 [15]

Answer:

10m

Step-by-step explanation:

Your teacher probably told you the necessary fundamentals of monomials. So, I'll just teach you the things needed for this particular question.

10m^3/(10m)(m)

First, in the denominator, since that m are being multiplied and they are the same terms, their exponents add:

10m * m

10m^1 * m^1

1 + 1 = 2

10m^2

Then, since that m are now being divided, their exponents subtract:

10m^3 / 10m^2

3 - 2 = 1

10m^1

10m

4 0

2 years ago

Using synthetic division, what is the quotient (2x3 − 3x − 10) ÷ (x − 2)?

melamori03 [73]

Answer:

(2x3 − 3x − 10) ÷ (x − 2) = ( x-2)

Step-by-step explanation:

4 0

1 year ago

The daytime high temperature on the moon can reach 130°C. The nighttime low temperature can get as low as −110°C. What is the di

maks197457 [2]

Answer:

240

Step-by-step explanation:

remember that to get from positive to negative you have to go from positive to 0 then to negative .

however the easiest way of solving this is

add both the values , ignore the sign

130 + 110

the difference in the temperature is :

= 240 degrees

7 0

2 years ago

In the geometric progression 1, 2, 4… what term is 512?

Levart [38]

The next term is double the previous term, so that the $n$ -th term is given recursively by

$\begin{cases}a_1=1\\a_n=2a_{n-1}&\text{for }n>1\end{cases}$

This rule tells us that

$a_2=2a_1$

$a_3=2a_2=2^2a_1$

$a_4=2a_3=2^3a_1$

and so on, with the explicit rule

$a_n=2^{n-1}a_1=2^{n-1}$

for $n\ge1$ .

If 512 is the $k$ -th term in the sequence, then

$512=2^{k-1}\implies\log_2512=\log_22^9=\log_22^{k-1}\implies9=k-1\implies k=10$

8 0

2 years ago