What is 2 times the answer of 3 x 5.7

Mathematics

2 answers:

Savatey [412]3 years ago

8 0

Answer:

its 34.2

Step-by-step explanation:

you multiply and then double that

oee [108]3 years ago

5 0

Answer:

34.2

Step-by-step explanation:

3 x 5.7 = 17.1

17.1 x 2 = 34.2

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Plz help me with these 2 problems I really need it and I need to know how you to the answer so I can show my work

ELEN [110]

Answer:

13.) 0.19625 15.) 37.68

Step-by-step explanation:

Formula for area of a circle: A=πr²

13.) 3.14 x .25² = 0.19625

Formula for circumference for a circle: C=πD or C=2πr

15.) (6 x 2) x 3.14 = 37.68

Hope this helped : )

7 0

3 years ago

2, 6, 10, 14, ...

8090 [49]

The sequence can be represented by $2 + 4x$ , where $x$ is a whole number( $x \geq 0$ and $x$ is an integer). By this, we should be able to plug in some whole number x and be able to get these values if they are in the sequence. To test this, let's set these numbers equal to $2 + 4x$ and confirm that there is a whole number x which equals the values selected.

$2 + 4x = 90 \Rightarrow 4x = 88 \Rightarrow x = 22 \, \checkmark$

$2 + 4x = 150 \Rightarrow 4x = 148 \Rightarrow x = 37 \, \checkmark$

$2 + 4x = 160 \Rightarrow 4x = 158 \Rightarrow x = 39.5$

When trying 160 with our equation, we find that x doesn't equal a whole number, thus our answer is C, or 160. To confirm our answer, we can test 170 and 210 and confirm that they both give us a value for x which is a whole number.

$2 + 4x = 170 \Rightarrow 4x = 168 \Rightarrow x = 42 \, \checkmark$