Solve each quadratic equation by factoring: NEED THIS ASAP WILL GIVE BRAINLIEST

Answer:

x=7

Step-by-step explanation:

9x-9=5x+19

Combine like terms

9x-5x=19+9

4x=19+9

4x=28

x=7

Answer:

The school will approximately raise 1500p.

Step-by-step explanation:

For part a) you're asked to complete the possibility space, this simply means to fill out in the provided chart with all possible outcomes for spinning the two spinners and adding the result of each.

You are already given two examples, particularly the case of landing a 2 and 1 (hence you get a 3) and landing a 8 and 3 (hence you get an 11). Just finish filling up the chart per the examples.

For part b) we must calculate the probability of having the outcome be 7. Assuming all sides of both spinners have the same probability of landing, we calculate this using classical probability so, as follows:

[tex]P(7)=\frac{n(7)}{n(all)}[/tex]

Where [tex]P(7)[/tex] represents the probability of getting seven, [tex]n(7)[/tex] the number of ways the two spinners can land in which they add up to 7, and [tex]n(all)[/tex] the number of all possible outcomes from spinning the two spinners. We are just doing the rule of "all favorable outcomes over all outcomes".

The total number of outcomes is 12, as there's only 12 ways the two spinners could land. The total number of ways we can get 7 is 3 (only by spinning 1 and 6, or 2 and 5, or 3 and 4). So, the probability of landing 7 is:

[tex]P(7)=\frac{n(7)}{n(all)}=\frac{3}{12}=\frac{1}{4}=.25[/tex]

So, there's a 25% chance of getting a 7 (hence of winning at this game). This means, if 120 play, approximately a 25% of them will win - so, approximately 30 contestants will win.

The school is charging 20p for playing, so the 120 participants are paying 2400p. However, because approximately 30 people will win, the school will have to buy 30 lollipops that cost 30p each - so, at the end the school will raise approximately 2400p (total earnings of tickets) - 900p (total losses from people winning) = 1500p (total money raised).

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Answer:

[tex]P(A) = 0.50[/tex]

[tex]P(B') = 0.55[/tex]

[tex]P(A' U B') = 0.775[/tex]

[tex]P(A'B') = 0.275[/tex]

Step-by-step explanation:

Given

[tex]P(A\bar B) = 40\%[/tex] --- From outlet 1 alone

[tex]P(\bar A B) = 35\%[/tex] --- From outlet 2 alone

[tex]P(AB) = 10\%[/tex]  --- From both

Solving (a): Buys from outlet 1;

This is represented as: P(A)  and the solution is:

[tex]P(A) = P(A\bar B) + P(A B)[/tex]

[tex]P(A) = 40\% + 10\%[/tex]

[tex]P(A) = 50\%[/tex]

[tex]P(A) = 0.50[/tex]

Solving (b): Does not buy from outlet 2;

This is represented as: P(B') :

First, calculate the probability that the customer buys from 2

[tex]P(B) = P(\bar AB) + P(A B)[/tex]

[tex]P(B) = 35\% + 10\%[/tex]

[tex]P(B) = 45\%[/tex]

[tex]P(B) = 0.45[/tex]

Using the complement rule, we have:

[tex]P(B') = 1 - P(B)[/tex]

[tex]P(B') = 1 - 0.45[/tex]

[tex]P(B') = 0.55[/tex]

Solving (c): Does not buy from 1 or does not buy from 2

This is represented as: [tex]P(A' U B')[/tex]

And the solution is:

[tex]P(A' U B') = P(A') + P(B') - P(A'B')[/tex]

[tex]P(A' U B') = P(A') + P(B') - P(A') * P(B')[/tex]

Using complement rule:

[tex]P(A') = 1 - P(A)[/tex]

[tex]P(A') = 1 - 0.50[/tex]

[tex]P(A') = 0.50[/tex]

The equation becomes:

[tex]P(A' U B') = 0.50 + 0.55 - 0.50 * 0.55[/tex]

[tex]P(A' U B') = 0.775[/tex]

Solving (d): Does not buy from 1 or does not buy from 2

This is represented as:

[tex]P(A'B')[/tex]

And it is calculated as:

[tex]P(A'B') = P(A') * P(B)'[/tex]

[tex]P(A'B') = 0.50 * 0.55[/tex]

[tex]P(A'B') = 0.275[/tex]

Answer: Look

Step-by-step explanation:

Answer:

b. 42

Step-by-step explanation:

Your trying to find the diameter since radius is r

diameter is always double of radius

Answer:

Look up Trigonometry Calculator and Put in the sides it helps a lot

Step-by-step explanation:

Answer: We will use the SAS (SIDE-ANGLE-SIDE) to prove that the two triangles are congruent.  This states that if two sides and the included angle in one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.

First line

First column: AB is congruent to CB      Second column: Given

Second line

First column: angle ABD is congruent to angle CBD      Second column: Given

At this point we have the  SIDE-ANGLE portion of SAS.  We just need the other side.  We can see from the given angles that they both share a side...BD.

Third Line

First column: BD is congruent to BD     Second column: Reflexive property

All that is left is to state SAS.

Fourth Line

First Column:  Triangle ABD is congruent to triangle CBD     Second column: SAS (from lines 1,2,3)

Answer:

1st step

Step-by-step explanation:

7/10 is greater than 1/2

Answer:

Step 1

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

gravity

Answer:

2.5 hours

Step-by-step explanation:

Time is distance divided by speed.

Therefore, you'd have to do 175/70

175/70 = 2.5

Answer:

x = 7

Step-by-step explanation:

As in right triangle, the other two angles sum up equal to 90 degree, so 6x + 15 + 33 = 90, then solve for x, 6x = 90 - 15 - 33 = 42, then x = 7.

Answer: 27

Step-by-step explanation:

Answer:

1200 total boxes,

1152 more boxes need to be loaded

Answer:

Answer:

Part a) The area of the figure is [tex]\frac{9}{2} (4+\pi ) cm^{2}[/tex]

Part b) The perimeter of the figure is [tex]3(2+2\sqrt{2} +\pi )cm[/tex]

Extraemos los datos del problema:

Capital Inicial Bimestre → C = S/.25000

Tasa de interés bimestral:

I = C×i

I = S/.25000 × 0.08

I = S/.2000

Monto final:

M = C + I

M = S/.25000 + S/.2000

M = S/.27000

Variación Porcentual:

% = (M - C₀) / C₀

% = ( 27000 - 25000) /  25000

% = 8

Capital Inicial Bimestre → C = S/.27000

Tasa de interés bimestral:

I = C×i

I = S/.27000 × 0.08

I = S/.2160

Monto final:

M = C + I

M = S/.27000 + S/.2160

M = S/.29160

Variación Porcentual:

% = (M - C₀) / C₀

% = ( 29160 - 25000) /  25000

% = 16.64

Capital Inicial Bimestre → C = S/.29160

Tasa de interés bimestral:

I = C×i

I = S/.29160 × 0.08

I = S/.2332.8

Monto final:

M = C + I

M = S/.29160 + S/.2332.8

M = S/ 31492.8

Variación Porcentual:

% = (M - C₀) / C₀

% = ( 31492.8 - 25000) /  25000

% = 25.97

Answer: I think it B (130)

Step-by-step explanation: .........

Answer:

it is either A OR B

Step-by-step explanation:

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

Answer:

30-100

28-100

25-100

7-100

Step-by-step explanation:

It's hard to explain but I try

part in this means how many seeds we can place in those parts

and the whole it he whole amount of the part

hope that make sense

Answer:

b. Timeliness, Assurance, Needs, Reliability and Empathy.

Step-by-step explanation:

The customer rating is necessary for a business to improve its performance. A company will be able to improve its customer service based on customer reviews and feedback. The feedback of the customers is important in terms of service provision whether they rate the company based on responsiveness to the queries, timeliness of query resolution and other similar criteria.

Answer: it’s the second

Step-by-step explanation:

Answer:

8x-20

Step-by-step explanation:

Use the distributive property. Multiply 4 by 2x. Multiply 4 by -5.

{362- {6x3+(48/2) x2]}+3(9+4)

{362- {6x3+24 x2]}+3(9+4)

{362- 66+3(9+4)

{362- 66+3(9+4)

{296+3(13)}

(296+39)

335

hope this help you

have a good day

Answer:

Step-by-step explanation:

Solving with one operation at each step:

Answer:

111.4

Step-by-step explanation:

trust

Answer:

459

Step-by-step explanation:

because 3^5 is 243 and 6^3 is 216 then add up 243+216=459

Answer:

21k+9k+13, and simplified into 43k.

Step-by-step explanation:

The distributive property means that you can put addends or factors in any order to get the same result(9+1=10, 1+9=10)

21k+13k+9k can be re-written into 21k+9k+13, and simplified into 43k.

Answer:

43k

Step-by-step explanation:

Answer:

7610 m

Step-by-step explanation:

600m = 600m

7km = 7000m

1000cm = 10m

The required distance = 600 + 7000 + 10 = 7610 m