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3 years ago

Helpppppppppppppppppppppp

Mathematics

1 answer:

slega [8]3 years ago

7 0

D because it has to be a chord due to being perpendicular to a diameter

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Suppose A ={2, 5, 7, 9, 13, 25, 26}. True or False: <br><br> {1,2,3}⊆A

lbvjy [14]

Step-by-step explanation:

n(A) is the number of elements is A, sometimes written |A|. I count 7. n(A)=7

13 is among the elements of A, so 13 ∈ A is TRUE

26 is among the elements of A, so 26 ∉ A is FALSE

10 isn't in A, so 10 ∉ A is TRUE

PLS MARK BRAINLEST

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2 years ago

Find f(3) if<br> f(x)=x^3 + 2x^2-x-1

Wittaler [7]

Answer:

$\underline{ \boxed{f(3) = 41}}$

Step-by-step explanation:

$if \to \: f(x)=x^3 + 2x^2-x-1 \\ then \: f(3) = {3}^{3} + 2( {3)}^{2} - 3 - 1 \\ f(3) = 27 + 18 - 4 \\ f(3) = 41$

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2 years ago

Find the value of y...

soldier1979 [14.2K]

Answer:

y=0

Step-by-step explanation:

Rewrite Evaluate Powers:

3 $3^{2y-1}+3^{-1}+2*3^{y}*3^{-1}=1$

Calculate:

$(3^{y})^{2}*\frac{1}{3} +2*3^{y}*\frac{1}{3}=1$

Solve using substitution:

$(3^{y})^{2}*\frac{1}{3} +\frac{2}{3} *3^{y}=1$ $t=3^{y}$

Solve the equation for t:

$t^{2}*\frac{1}{3}+\frac{2}{3}t=1$

t=-3

t=1

Substitute back to t=3^y

3^y=-3

3^y=1

y∉R

$3^{y}=1$

y=0

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2 years ago

29867+14938 plz i need help

jok3333 [9.3K]

Answer:

44805

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A store pays $10 for a bracelet,and the markup is 115%. A customer will also pay a 5 and 1/2% sales tax.What will be the total c

sweet-ann [11.9K]

31.76 and to the power of 9 is somethinng

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3 years ago