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2 years ago

If the radius of a circle is 15 cm, what is the diameter?

Mathematics

2 answers:

attashe74 [19]2 years ago

5 0

The answer is the second answer, 30 cm

krok68 [10]2 years ago

3 0

The answer is 30 cm. Radius is half of a diameter.

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-m + 10 = -8 – 6m + 3m

Crank

M = -9 ; solve for m by simplifying both sides of the equation, then isolating the varible

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3 years ago

Self-Check<br> Practice Exercise 4

ryzh [129]

Answer:

A= Congruent

B= Supplementary

C= Congruent

D= Congruent

E=Supplementary

Step-by-step explanation:

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3 years ago

Find the values of x and y.<br> help please work has to be shown ..

Likurg_2 [28]

Answer:

x = 7 and y = 17

Step-by-step explanation:

16x + 9x + 5 = 180 cuz they are supplementary

25x = 175

x = 7

We also know that 16x + 4y = 180

so 16(7) + 4y = 180, so 4y = 180 - 112, so 4y = 68. y = 17

hope this makes sense

5 0

2 years ago

HELP PLEASE!

olasank [31]

Answer

Find out the Area of a triangle .

To proof

Formula

Area of Triangle

$= \frac{1}{2}\times( {x_1(y_{2}-y_{3}) +x_{2}(y_{3} - y_{1})+x_{3}(y_{1}-y_{2})})$

Now vertices are D(3, 3) , E(3, −1) , and F(−2, −5) .

$= \frac{1}{2} (3\times(-1 +5) + 3\times(-5-3)-2\times(3+1))$

Solving the above

$= \frac{1}{2}(3\times4+3\times-8 -2\times4)$

$=\frac{1}{2} (12-24-8)\\ =\frac{1}{2} (-32+12)\\=\frac{1}{2} (-20)$

= -10 units²

(Neglected the negative sign as area cannot be negative.)

= 10 units ²

Area of a triangle is 10 units ²

Hence proved

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3 years ago

Jesse has a 13.47-ounce bar of gold. He cuts 1.55 ounces off to make a piece of jewelry. How much gold is left in the bar?

telo118 [61]

Answer:

11.92 Ounces.

8 0

3 years ago