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ryzh [129]
3 years ago
12

B² - 5c if b = 15 and c = 9

Mathematics
2 answers:
bonufazy [111]3 years ago
4 0

Answer:

180

Step-by-step explanation:

<em>Here,</em>

<em>b=15</em>

<em>c=9</em>

<em>Now,</em>

<em />=b^{2}-5c\\\\=15^{2} -5*9\\\\=225-45\\\\=180

stepan [7]3 years ago
3 0

Answer:

180

Step-by-step explanation:

b^2-5c

Substitute 15 in for b

15^2=225 -> 225-5c

Substitute 9 in for c

5(9)=45

225-45 = 180

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Brums [2.3K]

Answer: x = 4

Step-by-step explanation:

2(x+1)=10

Distributive properties

a*(b+c)=(a*b)+(a*c)

Using distributive properties

Then

2*(x+1)=(2*x)+(2*1)

2*(x+1)=2x+2

Now, commutative properties

a*b=b*a

Addition is cumulative

a+(-b)=(-b)+a

Therefore applying to 2x+2

2x+2+(-2)=2x+(-2)+2

Then, applying to the equation

2x+2+(-2)=10+(-2), +×-=-

2x+2 -2=10-2

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Using division properties

ax=b

If a is none zero

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Option B

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3 years ago
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Answer:

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JulsSmile [24]

Answer:

<h2>The radius r = 22.5 cm</h2>

Step-by-step explanation:

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Substitute:

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