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4 years ago

Help I don’t understand

Mathematics

1 answer:

coldgirl [10]4 years ago

3 0

Answer:

PB=5

Step-by-step explanation:

Since you know that BD=24, you also know that both segments BC and CD have the same value since they're congruent: 12. You also were given the value of PC. Using Pythagorean Theorm, Substitute 12 for a and 13 for c, so the equation would say

12^2+b^2=13^2

Simplify to get

144+b^2=169

Now subtract 144 from 169 and you get 25. That is b^2. All you have to do now is square root 25 to isolate b.

√25=5

So therefore,

b=5

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During a promotional weekend, a state fair gives a free admission to every 188th person that enters the fair. On Saturday, there

damaskus [11]

Answer: 81 people

Step-by-step explanation:

Number of people that attended fair on Saturday = 6737

Number of people that got free admission = 6737/188 = 35.8.

Free admission on Saturday = 35

Number of people that attended fair on Saturday = 8669

Number of people that got free admission = 8669/188 = 46.1

Free admission on Sunday = 46

The people who received a free admission over the two days will be:

= 35 + 46

= 81 people

6 0

3 years ago

PLEASE HELP ME <br>IM NOT GOOD WITH GRAPHS

Yuri [45]

Answer:

Step-by-step explanation:

3 0

2 years ago

Situation:

FromTheMoon [43]

Answer:

5.6 days

Step-by-step explanation:

We are given;

Initial Mass; N_o = 25 g

Mass at time(t); N_t = 25/2 = 12.5 (I divide by 2 because we are dealing with half life)

k = 0.1229

Formula is given as;

N_t = N_o•e^(-kt)

Plugging in the relevant values;

12.5 = 25 × e^(-0.1229t)

e^(-0.1229t) = 12.5/25

e^(-0.1229t) = 0.5

(-0.1229t) = In 0.5

-0.1229t = -0.6931

t = -0.6931/-0.1229

t = 5.6 days

4 0

3 years ago

solve the following systems of equations. Express your answer as an ordered pair in the format(a,b), with no spaces between the

kodGreya [7K]

If you multiply the top equation by -2 you get:

-4x -14y = 14 => -4x = 14+14y

now you can plug in the -4x into the second equation:

14+14y - 3y = -19 => 11y = -33 => y=-3

Fill in y=-3 in either equation to find x:

2x - 21 = -7 => 2x = 14 => x=7

So your ordered pair is (7,-3)

7 0

3 years ago

A bell pepper has 3 grams of sugar per serving. An apple has 18 grams of sugar per serving. Which statement is true? A. For an e

frozen [14]

They would have the same serving size A would be correct because you take 18/ 6 and get 3 right. so that would mean that For an equal number of servings, the apples will have six times as much sugar as the pepper would. 6x3=18 so choice number 1 is the answer

8 0

4 years ago