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3 years ago

Which of the following methods would be the easiest to use to solve x2 – 7 = 0?

Mathematics

2 answers:

Talja [164]3 years ago

8 0

Add the 7 to both sides and then divide both sides by 2. Only way to solve, actually!!

andreev551 [17]3 years ago

6 0

Look at the picture. Hope it can help

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Base your answer to the following question on the diagram shown and the given information

erik [133]

Answer:

29°

Step-by-step explanation:

∠1 ≅ ∠8

3x+25 = 4x -17

42 = x . . . . . . . . . . add 17-3x

Now, we can find the measure of ∠1:

m∠1 = 3(42) +25 = 151

Angle 2 is the supplement to this, so has measure ...

m∠2 = 180° -151° = 29°

6 0

3 years ago

Solve for x. Use the completing the squares

cupoosta [38]

The answer is x = {-1, 9}
Hope this helped Mark me as brainliest pls

7 0

3 years ago

Suppose that E and F are two events and that N(E and F)=300 and N(E)=730. What is P(F|E)?

marin [14]

Answer:

$\displaystyle\frac{30}{73}$

Step-by-step explanation:

The formula of conditional probability is:

$\displaystyle P(F|E)=\frac{P(E \cap F)}{P(E)}$

And if we called N(U) the total number of possible outcomes, then remember by definition of probability:

$\displaystyle P(E \cap F)=\frac{N(E \cap F)}{N(U)}\\\displaystyle P(E)=\frac{N(E)}{N(U)}$

Then plugging them into the formula of conditional probability we get:

$\displaystyle P(F|E)=\frac{\frac{N(E \cap F)}{N(U)}}{\frac{N(E)}{N(U)}}$

Then we simplify and we get:

$\displaystyle P(F|E)=\frac{N(E \cap F)}{N(E)}$

We just plug the given info and we get:

$\displaystyle P(F|E)=\frac{300}{730}=\frac{30}{70}$

3 0

3 years ago

2y-16=2x in slope intercept form

Ber [7]

Y=x+8 I’d your answer

4 0

2 years ago

Determine all the factors for the following expression(Note: you will need to use the Rational Root Theorem more than one time)

Aleks [24]

ANSWER

Possible rational roots: ±1,±2,±3,±4,±6,±12±1,±2,±3,±4,±6,±12

Actual rational roots: 1,−1,2,−2,−3

see attachments for all steps.

4 0

3 years ago

Read 2 more answers