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Alenkasestr [34]
3 years ago
13

I need some help on these two questions.

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
4 0

Answer:

see explanation

Step-by-step explanation:

The length of the arcs are calculated as

arc = circumference of circle × fraction of circle

(13)

arc = 2πr ×\frac{72}{360}

      = 2π × 25 × \frac{1}{5} = 10π units

(14)

arc = 2π × 2 × \frac{270}{360}

      = 4π × \frac{3}{4} = 3π units

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You want to make 3 pairs of earrings that are in the shape of isosceles triangles. Each earring will have a base of 2 cm. The wi
son4ous [18]

Answer:

The length of each of the other two sides would be  3.1 cm

Step-by-step explanation:

<u><em>The options of the question are</em></u>

A. 3.1 cm

B. 3.2 cm

C. 4.2 cm

D. 6.1 cm

we know that

An isosceles triangle has two equal sides and two equal interior angles

Let

x -----> the length of each of the two equal sides in the isosceles triangle

The perimeter of one isosceles triangle is equal to

P=2x+2

Remember that

To maximize the use of the wire, the perimeter of 6 earrings (3 pairs of earrings) must be equal to 50 cm

so

6(2x+2)=50

Solve for x

12x+12=50

12x=50-12

12x=38

x=\frac{38}{12}=3.16\ cm

therefore

The length of each of the other two sides would be  3.1 cm

7 0
3 years ago
a company has 3 divisions.last year, each division earned a profit of $5×10^5 power what was the total profit the company earned
djverab [1.8K]
3 times 5× 10^5 = 3×5×10^5=15×10^5 = 1.5×10^6
6 0
3 years ago
Read 2 more answers
Graph the line through (-3,1) with slope 3/2
spayn [35]

Answer:

Pencil on y: 5.5 then 3 down and 1 to the right. (You can trace a line with 2 points, but can continue the pattern: 3 down, 1 to the right)

Step-by-step explanation:

y- intercept = 1 - (3/2)(-3)

y-intercept = 1 + 9/2 = 11/2 = 5.5

y = 3/2x + 11/2

3 0
3 years ago
HELPPP ME PLZZZZZZ !.!.!.!.!.!.!.!!.!.!??
Vlad [161]

Answer:

A

Step-by-step explanation:

The graph is not a function because the line x=0 intersects the shape at 2 points instead of 1. Plus, you can do the vertical line test to prove that this shape is not a function

4 0
3 years ago
How do you solve absolute value equations?
erma4kov [3.2K]

Answer:

g=0

Step-by-step explanation:

If the equation is -4/5g-12=-12, then you would start by canceling out both of the -12, so your new equation would be -4/5g=0. Since you need to get g by itself, multiply it by the inverse -5/4, and you have g by itself.

Your answer would be g=0

7 0
3 years ago
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