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3 years ago

11

Please help will mark brainlest!!

1 answer:

kipiarov [429]3 years ago

6 0

Answer:

11

Step-by-step explanation:

The angles will equal 180.

Thus, the equation is 9x-5+6x+20=180.

15x+15=180.

15x=165.

divide by 15 on both sides, x = 11.

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What are the zeros of , where <br><br> ? help please need some help someone help please

Crank

${ \boxed{\boxed{\begin{array}{cc} \maltese \bf \: given \\ \\ \rm \: f(x) = ( {x}^{2} + 16)( {x}^{2} - 9) \\ \\ \bf \: for \: zeroes \\ \\ \pink{ \boxed{\boxed{\begin{array}{c | c} \bf \: {x}^{2} + 16 = 0 & \bf \: {x}^{2} - 9 = 0 \\ \\ = > {x}^{2} = - 16& {x}^{2} = 9 \\ \\ = > x = \pm \sqrt{ - 16} &x = \pm \: \sqrt{9} \\ \\ = > x = \pm \sqrt{ {i}^{2} {4}^{2} } &x = \pm \: \sqrt{ {3}^{2} } \\ \\ = > x = \pm \: 4i&x = \pm3 \end{array}}}} \\ \\ \rm \: x = \pm3 \: and \pm \: 4i\end{array}}}}$

Option A is the correct answer

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3 years ago

How to find the surface area of a pyramid with a square base.

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hope it really helps.....!!!!

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2 years ago

Chloe invests money in an account paying simple interest. She invests $200 and no money is added or removed from the investment.

MissTica

Answer:

2%

Step-by-step explanation:

Chloe's simple interest for 1 year is $4. You can get this by subtracting the amount she invested from the total amount she got after one year.

$204 - $200 = $4

Now that we know the simple interest, we can now get the simple interest rate or<em> simple percent interest per year </em>by dividing $4 by $200.

$4 ÷ $200 = 0.02

Let's change 0.02 into a percentage.

0.02 x 100 = 2%

This means that every year, her investment will earn a <em>2% simple interest.</em>

6 0

3 years ago

Read 2 more answers

Which of the following is not necessarily true?

xxTIMURxx [149]

Answer:

The answer is B, or AD=BC

Step-by-step explanation:

The lengths of the curves do not look similar, as curve BC is longer than curve AD.

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3 years ago

A card is drawn from a standard deck and replaced. After the deck is shuffled, another card is pulled. What is the probability t

Grace [21]

Answer:

0.0625 = 6.25% probability that the first card drawn is a diamond and the second card is a club

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability of independent events:

The probability of independent events happening at the same time is the multiplication of the probabilities of each events.

First card:

A standard deck has 52 cards, of which 13 are diamonds. So

$P(A) = \frac{13}{52} = \frac{1}{4}$

Second card:

The first card is replaced, so still 52 cards, of which 13 are clubs. So

$P(B) = \frac{13}{52} = \frac{1}{4}$

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Each drawing is independent, so

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3 years ago

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