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adoni [48]
3 years ago
11

hat is the lateral area of this regular octagonal pyramid? 149.3 cm² 182.9 cm² 211.2 cm² 298.7 cm² The figure shows a regular oc

tagonal pyramid. A dashed line segment is shown perpendicular to a base edge with its second endpoint being the center of the base and has a length of 8 centimeters. A second dashed line segment has one endpoint at the center of the base and the second endpoint at the vertex of the pyramid and has a length of 8 centimeters. A base edge has a length of 6.6 centimeters.
Mathematics
2 answers:
alukav5142 [94]3 years ago
4 0

Answer:

The answer is 298.7

Step-by-step explanation:

dem82 [27]3 years ago
3 0

Answer:

Hello! The correct answer is 298.7 cm^{2}

Step-by-step explanation:

I am just confirming!

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Help please! Don’t understand!
telo118 [61]

Answer: Well since the ratio is 9:7 for red to blue well transfer that first by finding out the blue if there are 117 xc=9:7x13 would be 117 red and 7x13=91 blue so the new ratio is 117:91.

So now we add which I'm sure you can do,

117

+

91

_____

208 <-<u><em>your answer </em></u>

3 0
3 years ago
Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater
jeka57 [31]

Answer:

a. 0.1917

b. 0.0914

d. 0.1580

Step-by-step explanation:

(a)

 P^D = \frac{15}{40} = 0.375

 P^E = \frac{11}{60} =0.8133

Mean, \sigma_{P^D-P^E} = P^D-P^E = 0.375 -0.1833 = 0.1917

(b) sample prop ? Show your work and label each value.

Mean,   =  = 0.1917

Standard deviation = \sqrt{\frac{P^D(1-P^D)}{N_D} +\frac{P^E(1-P^E)}{N_E} }

Standard deviation =  \sqrt{\frac{0.375(1-0.375)}{40} +\frac{0.1833(1 - 0.1833)}{60} }

Standard deviation = 0.0914

(c)

Normality condition:

np ≥ 10 and n(1-p) ≥ 10

Both the samples satisfy the normality condition.

(d)

The probability is obtained by calculating the z score,

z = \frac{(P^D-P^E)-(P^d-P^e)}{\sigma_{P^D - P^E}}

z = \frac{0.1917-0.1}{0.0914} = 1.0029

P(z > 1.0029) = 1 - P(z ≤ 1.0029)

The probability is obtained from the z distribution table,

P(Z > 1.0029) = 1 - 0.8420 = 0.1580

3 0
3 years ago
a ball is droppedd from a height of 100 feet. one second later, another ball is dropped from a height of 75 feet. which ball its
mestny [16]


<span>So ball A (100 feet) will hit the ground after 2.49 seconds and ball B (75 feet) after 3.15 seconds</span>
5 0
4 years ago
Consider the diagram. The congruence theorem that can be used to prove △BAE ≅ △CAD is SSS. ASA. SAS. HL.
vesna_86 [32]
I think the answer is d

6 0
4 years ago
Read 2 more answers
0.4x - 0.3 = -0.14<br>Need help, rush not needed
never [62]
This is a two step equation. What we want to do is get x by itself.

We will add .3 to both sides:
0.4x=-0.11

We will now divide both sides by .4

X=-0.275
5 0
3 years ago
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