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victus00 [196]
3 years ago
8

Work out the circumference of a circle with diameter 1.8cm.

Mathematics
2 answers:
DaniilM [7]3 years ago
8 0

Answer:

5.65

Step-by-step explanation:

<em>Using the formulas</em>

C= 2πr

d= 2r

<em>Solving forC</em>

C = π d = π · 1.8 ≈ 5.65487cm

<u><em>Brainliest?</em></u>

<u><em></em></u>

telo118 [61]3 years ago
5 0
5.7

1.8*3.142

Mark brainliest please
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If g(x) = a f(x + b), how is f(x) transformed to get g(x)?
nevsk [136]

Answer:

There was a Horizontal translation left b units and then Vertical stretch or compression

Step-by-step explanation:

Given : g(x) = a f(x + b)

We are supposed to show the transformation

Rule : f(x)→f(x+c)

Horizontal translation left c units

So, f(x+b) is the Horizontal translation left b units

Rule : f(x)→cf(x)

Vertical stretch or compression

So,g(x) = a f(x + b)

So, Initially there was a Horizontal translation left b units and then Vertical stretch or compression

5 0
4 years ago
There are 75 students in classes A and B altogether. There are 61 students in classes A and C altogether. The ratio of the numbe
Bezzdna [24]

Answer:

40

Step-by-step explanation:

A +  B=75

A + C = 61

B = 5/3 *C

A+C * 5/3 = 75 then we got the answer

3 0
3 years ago
Read 2 more answers
What is 2√20 - 4√45 + 7√12 in simplest radical form? show steps pls
miss Akunina [59]
Exact Form:
8√5+14√3

Decimal Form:
6.36016748

8 0
3 years ago
Are the solutions correct?
Aloiza [94]

Answer:

First one is wrong. x should be 16.

Second one is not completely visible, so cannot say.

Step-by-step explanation:

In the last step, the divison by 4 yields:

x/16 = 1, so x = 16

4 0
3 years ago
Which equation is rewritten in vertex form?
Zinaida [17]
(x + 3)^2 + (x + 4)^2 
= x^2 + 6x + 9 + x^2 + 8x + 16
= 2x^2 + 14x + 25
= 2(x^2 + 7x) + 25
= 2[(x + 7/2)^2  - 49/4] + 25
= 2(x + 7/2)^2 - 98/4 + 25
= 2(x + 7/2)^2 + 1/2


Its B

7 0
3 years ago
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