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3 years ago

What is the surface area of a right rectangular prism with length4 cm, width 9 cm, and height 3 cm?

Mathematics

2 answers:

Mnenie [13.5K]3 years ago

8 0

Answer:

$150cm^{3}$

Step-by-step explanation:

A=2(wl+hl+hw)=2·(9·4+3·4+3·9)=150

Olenka [21]3 years ago

3 0

150 Is the Surface Area.

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Try this please, it's about arcs and angles and I'm just not sure how to do it. Thanks!

Nataly_w [17]

Check the picture below.

the segment LOJ is a diameter, and therefore the arcLCJ made by that diameter will have a central angle of 180°.

that simply means that the arcLC is 180 - 94, or 86°.

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3 years ago

Factor 4x^2 -6w+2x-12xw

kirill [66]

Answer:

2(2x+1)(x-3w)

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3 years ago

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Suppose that we have a sample space S5 {E1, E2, E3, E4E4E, E5, E6, E7}, where E1, E2, . . ., E7 denote the sample points. The fo

VashaNatasha [74]

Answer:

P(A) = 0.4 ; P(B) = 0.50 ; P(C) = 0.60 ; P(A u B) = 0.65 ; P(A n B) = 0.25 ;

A and C are mutually exclusive ;

0.5

Step-by-step explanation:

S = {E1, E2, E3, E4, E5, E6, E7}

P(E1) = .05, P(E2) = .20, P(E3) = .20, P(E4) = .25, P(E5) = .15, P(E6) = .10, and P(E7) = .05

Let:

A{E1,E4,E6}

B{E2,E4,E7}

C{E2,E3,E5,E7}

P(A) = 0.05 + 0.25 + 0.10 = 0.40

P(B) = 0.20 + 0.25 + 0.05 = 0.50

P(C) = 0.20 + 0.20 + 0.15 + 0.05 = 0.60

AUB = {E1, E2, E4, E6, E7}

P(A u B) = 0.05 + 0.20 + 0.25 + 0.10 + 0.05 = 0.65

AnB = {E4}

P(A n B) = 0.25

A and C are mutually exclusive if AnC = ∅

A n C = ∅

Hence, A and C are mutually exclusive.

B complement = B' = {E1, E3, E5, E6}

P(B') = 0.05 + 0.20 + 0.15 + 0.10 = 0.5

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2 years ago

A recipe for cookies calls for 23 of a cup of sugar per batch. Elena used cups of sugar to make multiple batches of cookies. How

Oxana [17]

Answer:

Step-by-step explanation:

Answer: 8 batches

Step-by-step explanation:

To get the number of batches she made, we can just use proportion to solve it. But first, we need to convert 5 1/3 to improper fraction

5 1/3 = 16/3

Then we can now use the proportion to solve

2/3 cups = 1 batch

16/3 cups = x (note:5 1/3=16/3)

cross multiply

2/3 × x = 16 /3

2x/ 3 = 16/3

we need to make x the subject of the formula, to do that we will multiply each side of the equation by 3/2

2/3 × 3/2 x = 16/3 × 3/2

6x /6 = 48 / 6

x = 8

Therefore she made 8 batches of cookies.

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2 years ago

WILL GIVE BRAINLIEST<br> Write the product using exponents. (−9)⋅(−9)⋅(−9)⋅(−9)⋅(−9)

Daniel [21]

Answer:

-9^5

Step-by-step explanation:

(-9)*(-9)*... is -9^5

Please mark as Brainliest! :)

Have a nice day.

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3 years ago

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