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Svetllana [295]
3 years ago
5

ILL give all my points please help me

Mathematics
1 answer:
VikaD [51]3 years ago
3 0

Answer:

21.98

Step-by-step explanation:

Plug in 1.738 as r into the formula:

V = 4/3*2.5.2498*pi = 21.99 which is closest to answer choice 21.98

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A number decreased by 5 is less than 32
Sindrei [870]
No. A number DECREASED by 5 IS 32. That means you ADD 5. So the correct answer is 37.
7 0
3 years ago
Read 2 more answers
At Jefferson Middle School, 84 seventh-grade students have been to the zoo. This number is 75%
julsineya [31]

Answer:

147

Step-by-step explanation:

84*0.75=63

63+84=147

hope this helps!

please give brainiest <3

3 0
3 years ago
La edad de Ericka es el tripl de la edad de Liliana y hace 9 años la suma de sus edades era 22. ¿Cuantos años tiene actualmente
Gnom [1K]

Answer:

Liliana tiene 10 años.

Step-by-step explanation:

Definamos las variables:

E = edad de Ericka

L = edad de Liliana.

Primero sabemos que la edad de Ericka es el triple de la edad de Liliana, entonces:

E = 3*L

Tambien sabemos que hace 9 años la suma de sus edades era 22

Hace nueve años la edad de Ericka era E - 9

Y hace nueve años la edad de Liliana era L - 9

Entonces tenemos:

(E - 9) + (L - 9) = 22

Así, tenemos un sistema de dos ecuaciones:

E = 3*L

(E - 9) + (L - 9) = 22

Queremos conocer la edad actual de Liliana.

Para ello tenemos que despejar E en una de las ecuaciones.

Podemos ver que en la primer ecaución E ya está aislada, entonces nos saltamos ese paso.

Ahora, reemplazamos E en la otra ecuación:

(E - 9) + (L - 9) = 22

(3*L - 9) + (L - 9) = 22

Ahora podemos resolver esto para L

3*L - 9 + L - 9 = 22

4*L - 18 = 22

4*L = 22 + 18

4*L = 40

L = 40/4 = 10

L = 10

Liliana tiene 10 años.

3 0
3 years ago
Help help help help help
Rudiy27

Answer: Add the dots for each side once done you should get the answer

Step-by-step explanation:

8 0
4 years ago
Find the height of a square pyramid that has a volume of 8 cubic feet and a base length of 2 feet. . . a. 6 feet. b. 16 feet. c.
exis [7]
Volume a square pyramid is expressed as the one third of the product of the base area and the hight of the shape.

Volume = (1/3)*(base area)* height

Substituting the given values, we have:

(1/3)*(2 * 2) * h = 8

h = 8*3 / (2 * 2)

h = 6 ft

Therefore, the correct answer among the choices is option A.
3 1
4 years ago
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