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Aleksandr-060686 [28]
3 years ago
5

Evaulate a+4 when a=7

Mathematics
2 answers:
Radda [10]3 years ago
5 0

Answer:

Step-by-step explanation:

a + 4

(7) + 4

11

Leviafan [203]3 years ago
5 0

Answer:

11

Step-by-step explanation:

You plug 7 into the equation, and because 7=a, 7+4=11

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Answer:

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Step-by-step explanation:

"If two figures are similar, their dimensions will be proportional.

Following this rule,

Ratio of the dimensions of two cones = \frac{\text{Radius of the large cone}}{\text{Radius of the small cone}}

                                                               = \frac{r_2}{r_1}

                                                               = \frac{5}{2}

                                                               = 2.5

Similarly, "ratio of the volumes of two similar figures is cube of the dimensional ratio".

Ratio of the volumes = (ratio of the dimensions)³

\frac{V_1}{V_2}=(2.5)^3

\frac{131}{V_2}=15.625

V_2=\frac{131}{15.625}

    = 8.384 cm³  

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Therefore, volume of the smaller cone is 8.4 cm³.                          

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3 years ago
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Mariulka [41]
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Step-by-step explanation:

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