All categories

3 years ago

Evaluate the expression for n=8 7(n-7)+17

Mathematics

1 answer:

omeli [17]3 years ago

5 0

Answer:

Step-by-step explanation:

7(n - 7) + 17 Substitute 8 for n

7(8 - 7) + 17 Subtract 8 - 7

7(1) + 17 Multiply 7 x 1

7 + 17 Add

If this answer is correct, please make me Brainliest!

You might be interested in

Select the equation that is equivalent to the equation y-3 = 2(x + 5).

kakasveta [241]

Answer:y=2x+13

Step-by-step explanation:You would distribute the 2 to get y-3=2x+10. Then add the three over to get your final answer.

4 0

3 years ago

Find the area of the specified region. Inside one leaf of the four-leaved rose

bazaltina [42]

Do you have an image of the question?

5 0

3 years ago

Michelle draws a card from a standard deck of 52 cards. She replaces the card and draws a second card. What is the probability t

erma4kov [3.2K]

To draw a heart, one would be choosing 1 card of 13 possible hearts, and 0 from the remaining 39 non-hearts. With respect to the entire deck, one would be choosing 1 card from 52 total cards. So the probability of drawing a heart is

$\dfrac{\dbinom{13}1\cdot\dbinom{39}0}{\dbinom{52}1}=\dfrac{13\cdot1}{52}=\dfrac14$

When Michelle replaces the card, the deck returns the normal, so the probability of drawing any card from a given suit is the same, $\dfrac14$ . In other words, drawing a spade is independent of having drawn the heart first.

So the probability of drawing a heart, replacing it, then drawing a spade is $\dfrac14\cdot\dfrac14=\dfrac1{16}$ .

4 0

3 years ago

Read 2 more answers

What is the probablility that a student plays on a sports team given they play an instrument.

cestrela7 [59]

Answer:

These two things have litterally nothing to do with eachother

Step-by-step explanation:

50% chance i guess?

8 0

2 years ago

Read 2 more answers

Can anybody help me please

GREYUIT [131]

Question 7: Option 1: x = 33.5°

Question 8: Option 3: x = 14.0°

Step-by-step explanation:

<u>Question 7:</u>

In the given figure, the value of perpendicular and hypotenuse is given, so we have to use any trigonometric ratio to find the value of angle as the given triangle is a right-angled triangle

So,

Perpendicular = P = 32

Hypotenuse = H = 58

So,

$sin\ x = \frac{P}{H}\\sin\ x = \frac{32}{58}\\sin\ x = 0.5517\\x = sin^{-1} ( 0.5517)\\x =33.48$

Rounding off to nearest tenth

x = 33.5°

<u>Question 8:</u>

In the given figure, the value of Base and Perpendicular is given, we will use tangent trigonometric ratio to find the value of x

So,

Perpendicular = P = 5

Base = B = 20

So,

$tan\ x = \frac{P}{B}\\tan\ x = \frac{5}{20}\\tan\ x = 0.25\\x = tan^{-1} (0.25)\\x = 14.036$

Rounding off to nearest tenth

x = 14.0°

Keywords: Right-angled triangle, trigonometric ratios

Learn more about trigonometric ratios at:

#LearnwithBrainly

8 0

3 years ago