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2 years ago

When a fair coin is ossed 4 times what is probability of tossing at least 3 heads?

Mathematics

1 answer:

creativ13 [48]2 years ago

7 0

The ratio of that probability is 3 : 4

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Which angles are pairs of corresponding angles? Check all that apply

AleksAgata [21]

Answer:

B and D people. Your welcome.

Step-by-step explanation:

6 0

2 years ago

Rewrite the expressions without the parentheses 5(-5x-7)=

lara31 [8.8K]

Answer:

5*-5x*-7=

Step-by-step explanation:

*=multiply

7 0

2 years ago

For the funtion f(x)= (x+7)^5, Find f^-1 (x)

quester [9]

Answer:

The inverse of function $f(x)= (x+7)^5$ is $\mathbf{f^{-1} (x)=\sqrt[5]{x}+7}$

Option A is correct option.

Step-by-step explanation:

For the function $f(x)= (x+7)^5$ , Find $f^{-1} (x)$

For finding inverse of x,

First let:

$y=(x+7)^5$

Now replace x with y and y with x

$x=(y+7)^5$

Now, solve for y

Taking 5th square root on both sides

$\sqrt[5]{x}=\sqrt[5]{(y+7)^5}\\\sqrt[5]{x}=y+7\\=> y+7=\sqrt[5]{x}\\y=\sqrt[5]{x}-7$

Now, replace y with $f^{-1} (x)$

$f^{-1} (x)=\sqrt[5]{x}+7$

So, the inverse of function $f(x)= (x+7)^5$ is $\mathbf{f^{-1} (x)=\sqrt[5]{x}+7}$

Option A is correct option.

6 0

2 years ago

Match the reasons with the statements.

german

Answer:

Concept: Mathematical Derivation

We are given x^2 +6x+2x+12
Hence we simplify: x^2 + 8x +12
Now we factor: (x+2)(x+6)
By mathematical logic we now proved that the roots are x=-2 and x=-6
Give brainlist and rate positively

4 0

2 years ago

Write y=1/8x+7 in standard form using intergers

lakkis [162]

Answer:

B) -x+8y=56

Step-by-step explanation:

y=1/8x+7

Multiply by 8 to clear the fraction

8y = 8(1/8x+7)

Distribute

8y = 8*1/8x +8*7

8y = x+56

Subtract x from each side

-x+8y = x-x+56

-x+8y = 56

4 0

2 years ago