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3 years ago

Which expression represents the surface area of the regular square pyramid shown?

Mathematics

1 answer:

aliya0001 [1]3 years ago

3 0

Answer:

b^2 +2bl

Step-by-step explanation:

B = base length

L = slant height

The equation is for a regular square pyramid surface area

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Given a sequence is defined by the explicit definition LaTeX: t_n=\:n^2+nt n = n 2 + n, find the 4th term of the sequence. (ie L

Reika [66]

Answer:

$t_{4}=20$

Step-by-step explanation:

Given:

The $n^{th}$ term of the sequence is given as:

$t_{n}=n^{2}+n$

In order to find the fourth term of this sequence, we need to plug in 4 for $n$ in the above expression and solve. This gives,

$t_{4}=4^{2}+4\\t_{4}=16+4=20$

Therefore, the fourth term of the sequence is $t_{4}=20$ .

6 0

3 years ago

Read 2 more answers

Linda Barnes has learned from prior studies that one out of five applicants gets admitted to top MBA programs in the country. Sh

LenKa [72]

Answer: 126

Step-by-step explanation:

As per given , we have

Prior Population proportion : $p=\dfrac{1}{5}=0.2$

Significance level : $\alpha=1-0.95=0.05$

Critical value for 95% confidence interval (using the z-value table) = $z_{\alpha/2}=1.96$

Margin of error (maximum error): $E=7\%=0.07$

Formula to find the sample size :

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\ n=0.20(1-0.20)(\dfrac{1.96}{0.07})^2\\\\ n=125.44\approx126$

Therefore , the required minimum sample size = 126

5 0

3 years ago

FI bisects angle GFH. Find GI.

Svetach [21]

Answer:

D: 13

Step-by-step explanation:

4k-7 = 2k+3

k=5

4(5)-7 = 13!

GI = 4k-7 which = 13

5 0

2 years ago

If <4 and <5 are supplementary and m<5=83°, what is <4

fiasKO [112]

Answer:

∠4 = 97°

Step-by-step explanation:

If ∠4 and ∠5 are supplementary, it means they add up to 180°. So,

m∠4 + m∠5 = 180°

m∠4 + 83° = 180°

m∠4 = 180° - 83°

∠4 = 97°

hope this helps!! p.s. i really need brainliest :)

3 0

3 years ago

Please help and show work !!!

Hitman42 [59]

C = 13
from Pythagoras's theorem
C^2 = A^2 + B^2
= 5^2 + 12^2
= 24 + 144
= 169
then C = √ 169 = 13

5 0

3 years ago