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2 years ago

A piece of string 64cm long is divided into three pieces in the ratio of 1:2:5. Calculate the length of the longest piece.

Mathematics

1 answer:

sergejj [24]2 years ago

5 0

Answer:

40cm is the longest piece ( not sure )

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The problem is in the picture.

Semmy [17]

Answer:

an = 5 + 10(n -1)
a7 = 65

Step-by-step explanation:

The explicit formula for the n-th term of an arithmetic sequence is ...

an = a1 + d(n -1)

where a1 is the first term and d is the common difference.

The sequence of seat counts has a1=5 and d=10, so the explicit formula is ...

an = 5 +10(n -1)

___

The 7th term is ...

a7 = 5 +10(7 -1) = 65

5 0

3 years ago

NEED HELP NOW!!!!!!!

anzhelika [568]

Step-by-step explanation:

the area of a triangle is

baseline × height / 2

the baseline (where the height hits at a 90° angle) is 4 m.

the height is 3.7 m.

so, the area is

4 × 3.7 / 2 = 2 × 3.7 = 7.4 m²

4 0

2 years ago

I need help graphing equations on the graph to see if they have a soultion or not

topjm [15]

Where do they need to be graphed to?

5 0

2 years ago

HELP!

tigry1 [53]

Answer:

$b=40.01\ units$

Step-by-step explanation:

we know that

Applying the law of sines

$\frac{b}{sin(B)}=\frac{a}{sin(A)}$

$b=\frac{a}{sin(A)}(sin(B))$

we have

$a=25\ units$

$A=32.5\°$

Find the measure of angle B

Remember that the sum of the interior angles of a triangle must be equal to 180 degrees

$A+B+C=180\°$

substitute the given values

$32.5\°+B+26.8\°=180\°$

$B=180\°-59.3\°=120.7\°$

Find the length side b

$b=\frac{a}{sin(A)}(sin(B))$

substitute the values

$b=\frac{25}{sin(32.5\°)}(sin(120.7\°))$

$b=40.01\ units$

8 0

3 years ago

Jenna multiplied four numbers together and then divided by -2. The result was a positive value.

Maksim231197 [3]

Answer:

Step-by-step explanation:

6 0

2 years ago