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padilas [110]
3 years ago
15

Help I have to turn this in. In a couple hours

Mathematics
1 answer:
Gelneren [198K]3 years ago
6 0

28. Surface Area

This is some sort of house-like model so for every face we see there's a congruent one that's hidden.  We'll just double the area we can see.

Area = 2 × ( [14×9 rectangle] + 2[15×9 rectangle]+[triangle base 14, height 6] )

Let's separate the area into the area of the front and the sides; the front will help us for problem 29.

Front =  [14×9 rectangle] + [triangle base 14, height 6]

          = 14×9 + (1/2)(14)(6) = 14(9 + 3) = 14×12 = 168 sq ft

OneSide =  2[15×9 rectangle] = 30×9 = 270 sq ft

Surface Area = 2(168 + 270) = 876 sq ft

Answer: D) 876 sq ft

29.  Volume of an extruded shape is area of the base, here the front, times the height, here 15 feet.  

Volume = 168 * 15 = 2520 cubic ft

Answer: D) 2520 cubic ft

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Identify the incorrect step in solving the expression
Brrunno [24]

Answer: step 2, instead of adding the exponets together they should have done 5^3 first and then done the result of that (125) ^2

7 0
3 years ago
Read 2 more answers
Tiana can afford $150 per month for a car payment. Her bank preapproved her for a 6% interest rate for 5 years. What is the maxi
Pavel [41]

5 YEARS SHE WILL PAY =150 *12 *5 =9000


ON THAT 6% IS INTEREST


VALUE OF THE CAR IS 100- 6 =94 % OF 9000


WHICH IS 9000*.94= 8460

4 0
3 years ago
A
telo118 [61]

Answer:

1 La longitud de las nuevas cuerdas = 5 metros y 9 metros

2 El costo de las paletas = $ 3

El costo de las gomitas = $ 3

Step-by-step explanation:

1) Sea la primera mitad de la cuerda representada por = a

Deje que la segunda mitad de la parte superior esté representada por = b

a + b = 14 metros

De la pregunta, se nos dice que ok, la mitad es 4 metros más larga que la otra

a = b + 4

Por lo tanto

b + 4 + b = 14 metros

2b + 4 = 14 metros

2b = 14 - 4

b = 10/2

b = 5 metros

a = b + 4

a = 5+ 4

a = 9 metros

Por lo tanto, la longitud de las nuevas cuerdas = 5 metros y 9 metros

2)

Representemos el costo de las paletas = p

Costo de gomitas = g

De la pregunta 2 se nos dice que:

Tu vas a la tienda con un amigo y compras 6 paletas y 2 gomitas. Si tú pagas $ 24

Por tanto: 6p + 2g = 24 ....... Ecuación 1

Tu amigo pide 1 paleta y 10 gomitas. y tu amigo $ 33

p + 10g = 33 ....... Ecuación 2

p = 33 - 10g

Sustituya p por 33 - 10g en la Ecuación 1

6p + 2g = 24 ....... Ecuación

6 (33-10 g) + 2 g = 24

198 - 60 g + 2 g = 24

-58g = 24-198

-58g = - 174

g = -174 / -58

g = $ 3

Para encontrar p

p = 33 - 10g

p = 33 - 10 × 3

p = 33 - 30

p = $ 3

Por lo tant,

El costo de las paletas = $ 3

El costo de las gomitas = $ 3

6 0
3 years ago
Does anyone know 3²?
Vadim26 [7]

Answer:

It is 9.

Step-by-step explanation:

8 0
3 years ago
- 1/6 [ 3 - 15 (1/2)2]
bonufazy [111]

Answer:

Your answer is -2

Step-by-step explanation:

1/6 [ 3 - 15 1/2 x 2 ] = -2/1 = -2

Hope this helps : )

8 0
2 years ago
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