1. х2 - 3x = 16 solve quadratic​

Answers

Answer 1

Answer:

[tex]\frac{3+/-i\sqrt{55} }{2}[/tex]

Step-by-step explanation:

[tex]x^2-3x=16[/tex]

Subtract 16 from both sides;

[tex]x^2-3x-16=0[/tex]

[tex]\frac{-(-3)+/-\sqrt{(-3^2)-4(-16)} }{2}=\frac{3+/-\sqrt{9-64} }{2}=\frac{3+/-\sqrt{-55} }{2}=\frac{3+/-\sqrt{55i^2} }{2} =\frac{3+/-i\sqrt{55} }{2}[/tex]

1. 2 - 3x = 16 Solve Quadratic

Related Questions

At Walmart™ you can buy 8 hot dog buns for $2. At Costco™ you can buy the same hot dog buns, but they are $5.60 for 16 hot dog buns. Using two tables, decide who has the better deal (who sells 1 hot dog bun for the cheaper price).

Answers

The better deal is Walmart

Help me please I need the help

Answers

Answer:

Read below :)

Step-by-step explanation:

Take 75 / 15. Then in that many times, they will meet again. The answer is 75/15 = 5, so at 7:15 AM , they will meet again. Think of this like Chemistry. There is a restricting reactant and a non restrictive reactant. If you have 200 slices of bread, and 150 slices of cheese, the bread could only support 100 sandwiches. You'd have 50 slices of cheese left over. So the bread is the restrictive, or, in this case, 75, and the cheese is the non-restrictive number, or, 15. Hope this helps :)

ANSWER IN THE SECOND SENTENCE. Please read to be able to answer the following problems

Can someone help me? An explanation is great too! Yall can also give me some kind of formula. Tysm

Answers

Answer:

24

Step-by-step explanation:

you do base x height (bh) base is 6. Height is 4. 6 x 4 is 24.

(-5,0) with a rotation of 90° counterclockwise

Answers

Answer:

(0,-5)

Step-by-step explanation:

flipping axises casuses the points to flip

How to solve (x+7)(x-9)>0

Answers

9514 1404 393

Answer:

  (x < -7) ∪ (x > 9)

Step-by-step explanation:

The zeros of the function are the values of x that make the factors zero.

  x +7 = 0   ⇒   x = -7

  x -9 = 0   ⇒   x = 9

When this is expanded, we can see that the leading coefficient is positive.

  x² -2x -63 > 0

This means the parabola opens upward. It will be greater than 0 for x-values to the left of the left zero, and to the right of the right zero. (It is less than zero between those values.)

The solution is x < -7 or x > 9.

_____

In general, for polynomial inequalities, look for the locations of the zeros. The sign of the polynomial will have the sign of the leading coefficient for values of x to the right of the right-most zero. (Here, positive for x > 9.) As you progress farther to the left along the number line, the polynomial changes sign at each zero.

Here, the polynomial becomes negative between the values x=9 and x=-7. Then it is positive again for x < -7.

I will mark branliest if correct

Answers

Answer:

I believe it would be 1

Step-by-step explanation:

Please help, test due in 1 hour! I will give good review and brainliest. :)

Answers

Answer:

Step-by-step explanation:

this is about the volume of each size of candle.  so the area of the circle , times the height of the candle is the amount of wax needed or it's volume.  

area of a circle is  = [tex]\pi[/tex][tex]r^{2}[/tex]

then the big candle is [tex]\pi[/tex][tex]2^{2}[/tex] = 12.56637

times 10 for it's height = 125.6637

so that's the big candles volume

then make 20 of those = 2513.27

a small candle is [tex]\pi[/tex][tex]1.5^{2}[/tex] = 7.068583471

and it's 6 cm tall so times 6 = 42.41150082

Now divide the small candle volume into the 20 big ones to see how many small ones can be made

2513.27 /  42.41150082 = 59.259

so just a bit over 59 small candles can be made from 20 big candles

Solve and express your answer in both
scientific and standard notation.
.000075 + (1.3 x 10-5)

Answers

Answer:

8.000075

Step-by-step explanation:

1.3 x 10 is 13 that - 5 is 8 n then u just add the .000075 to it

scientific: 8.000075•10^0
standard: 8.000075

Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.

4( − 11) = 15 − 4

A
unique solution

B
no solution

C
infinite solutions

Answers

Answer:

Step-by-step explanation:

i can help

Step 1

4( − 11) = 15 − 4  Solving

Step 2

4( − 11) = 15 − 4  Simplify

15-4

-44=11

Answer

Unique solution

Hope this helps

Use graphs and tables to find the limit and identify any vertical asymptotes of the function.

limit of 1 divided by the quantity x minus 10 squared as x approaches 10

PLEASE ASNWER ASAP WITH WORK IN A TABLE PLEASE

Answers

Answer:

Step-by-step explanation:  Given is a function as 1 divided by the quantity x minus 10 squared

Mathematically translating we get

the function

Since the function become undefined at x=10 we get

vertical asymptote is

x=10

Limit x tends to 10 of f(x) will exist since both limits are equal

This is because let x tends to 0 from left.

Then we have

f(x) =  

Right limit also will be +infinity

This is because the curve is symmetrical about x=10 and hence limit would be +infinity.

Two friends, Chespirito and Quico, are racing down a mountain. Quico is 17.6 miles away from the Finish Line and runs 2.6 miles per hour. Chespirito is 22.8 miles from the Finish Line, but runs 3.9 miles per hour. How many hours will it take Chespirito to catch up with Quico? It will take Chespirito hours to catch up with Quico.

Answers

Answer:

4 hrs

Step-by-step explanation:

22.8-17.6=5.2

so they are 5.2 miles apart.

Let they meet after t hrs.

distance coverd by Quico in t hrs=2.6t

distance covere by Chespirito in t hrs =3.9t

3.9t-2.6 t=5.2

or 1.3 t=5.2

t=5.2/1.3 =4

Use the arc length formula and the given information to find r.
s = 16 cm, 0 = 48°; r = ?

Answers

Answer:

i converted θ to radians, then put that and the length of the arc into the formula shown.

Plz help me well mark brainliest if correct!!

Answers

Answer:

Midnight (D)

Step-by-step explanation:

Find the total amount due on a loan of $650 at the annual simple interest rate 5% at the
end of 6 months

Answers

Answer:

$666.25

Step-by-step explanation:

Use the equation A = P(1 + rt)

P=16.25

$650+$16.25=666.25

If a quadrilateral has these known angle degrees: 35, 35 and 145, what are the degrees of the fourth angle?

Answers

Answer:

145

Step-by-step explanation:

The total sum of all the angles is 360 degrees. If we add up 35, 35, and 145 we get 215. 360-215=145.

Find the volume.
PLEASE HELP I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER

Answers

the answer is 1,944. the formula of volume is length times width times height

If you were flipping a coin, and needed to get 2 heads in a row, what is the probability of getting two heads in a row. Use your probability tree to help. /

Answers

Answer:

1/4

Step-by-step explanation:

If you flip it twice the possible outcomes are

H   H

H   T

T    H

T    T

The chances of you getting H H is 1 / 4.   If you flip it more than twice, the probability changes. Let's try three times. That gives you 8 different choices.

H   H    H     *

H   H    T      *

H   T    H

H   T   T

T   H   H        *

T   H   T    

T   T    H

T   T    T

What this gives is 3 chances out of 8 which is 0.375 and that's better than 0.25

Four would give you an even better result, There are 16 ways of flipping a coin 4 times. The successful results are

H H H H

H H H T

H H T T

H H T H

T H H T

T T H H

H T H H

I'm sure there might be a couple of more, but already you have done better than 3/8

7/16 is almost 1/2

7/16 = 0.4375

I think however that the answer you should submit is 1/4

Which statement best describes the association between variable X and variable Y?

perfect negative association

moderate positive association

no association

strong negative association

Answers

Answer:

no association

Step-by-step explanation:

I just took the k12 test.

Liam had 5 7/8 cups of flour. He used 2 3/8 cups of flour to make bread. How much flour does Liam have left?

Answers

Answer:

7/2

Step-by-step explanation:

what is the range of magazines sold?


please answer will give brainliest

Answers

Answer:

range: 8

Step-by-step explanation:

In order to find the range you need the minimum and maximum

minimum: 17

maximum: 25

Subtract

25-17=8

The hypotenuse of a certain triangle is 5 units long and one leg is 3 units long
Did the area of the triangle

Answers

Answer:

6 units^2

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2}[/tex]

[tex]3^{2} +b^{2} =5^{2}[/tex]

[tex]9+b^{2} =25[/tex]

[tex]b^{2}=16[/tex]

[tex]b=4[/tex]

Area of the triangle = Base * Height * 1/2 = 3 * 4 * 1/2 = 6 units^2

Solve for x
A) -12
B) 8
C) 5
D) 7

Answers

Answer:

B. 8

Step-by-step explanation:

9x + 1 = 8x + 9

x = 8

Suppose you roll a special 34-sided die. What is the probability that the number rolled is a "1" OR a "2"?

Answers

Rolling a 1 or a 2 are mutually exclusive events (if you roll a 1, you could not have rolled a 2, and vice-versa), so the probability here is additive:

P(1 or 2) = P(1) + P(2) = 1/34 + 1/34 = 2/34 = 1/17.

So the probability of rolling a 1 or a 2 is 1/17.

Rewrite the following as a multiplication and use an array to write it in standard form (15m + 24) ÷ 3.

Answers

Answer:

5m + 8

Step-by-step explanation:

Dividing by 3 is the same as multiplying by 1/3.

1/3 (15m + 24)

Distribute the 1/3

1/3 * 15m = 5m

1/3 * 24 = 8

5m + 8

PLEASE HELP ASAP REAL ANSWERS ONLY OR WILL BE DELETED! 20 PTS!!

I just need someone to do this for verification of my work:


What is the volume of the composite figure if both the height and the diameter of the cylinder are 2.5 feet? Give the exact answer and approximate to two decimal places.

Answers

Answer:

16.36ft³

Step-by-step explanation:

First find the volume of the cylinder the add to the volume of the hemisphere.

I hope this helps.Its a trial btw feel free to delete if its not right lmmao

Answer:

16.36 ft3

Step-by-step explanation:

Volume of a Cylinder

V= π  r2 h

π • 1.253 • 2.5 = 12.27ft3

Volume of a Hemisphere

2 • π • 1.253

​2 • π • 1.95

12.26 /3 = 4.09 ft3

Both

4.09 ft3 + 12.27 ft3 = 16.36 ft3

yo im back whats 2+2

Answers

Answer:

Its 4

Step-by-step explanation:

[tex]2 + 2 = 4 \\ [/tex]

Answer:

2+2=4 lol

And it says I need 20 characters so here are the 20 characters, bRaInLy

help pleaseee need asap

Answers

Answer:

x = 77/10

Step-by-step explanation:

Hope this helps!

The residents of a certain dormitory have collected the following data: People who live in the dorm can be classified as either involved in a relationship or uninvolved. Among involved people, 15 percent experience a breakup of their relationship every month. Among uninvolved people, 30 percent enter into a relationship every month. What is the steady-state percentage of residents who are uninvolved?

Answers

Answer:

33.33%

Step-by-step explanation:

Given :

Breakup percentage = 15

New relationship percentage = 30

To obtain the steady state percentage of residents who are uninvolved, we could relate the scenario to the natural unemployment rate relation : seperation rate ÷ (seperation rate * finding rate)

Hence, we could use the Relation as this ;

Breakup percentage ÷ (Breakup percentage + new relationship rate)

15% ÷ (15% + 30%)

0.15 ÷ (0.15 + 0.30)

0.15 ÷ 0.45

= 0.33333

= 33.33%

For the equation, complete the given ordered pairs.

3x-y=4

{0,_} [1,_} {_,4}


Can someone help me

Answers

Answer:

{0,-4} [1,-1} {8/3,4}

Step-by-step explanation:

3x - y = 4

{0,_} [1,_} {_,4}

For x = 0:

3x - y = 4

0 - y = 4

y = -4

For x = 1

3x - y = 4

3 - 3 - y = 4 - 3

-y = 1

y = -1

For y=4

3x - y = 4

3x -4 = 4

3x = 8

x = 8/3

Solution:

{0,-4} [1,-1} {8/3,4}

Please mark brainliest if this helped!

Please mark brainliest if this helped!

3p + 10 = 2p + 21

a. 15
b. 17
c. 11
d. 21​

Answers

Answer:

c.  11

Step-by-step explanation:

3p + 10 = 2p + 21

Subtract 2p from both sides.

3p - 2p + 10 = 2p - 2p + 21

Simplify.

p + 10 = 21

Subtract 10 from both sides.

p + 10 - 10 = 21 - 10

Simplify.

p = 11

Answer: c.  11

Answer:

c.11

Step-by-step explanation:

3+10=2+21

3+10−10=2+21−10

3=2+11

3−2=2+11−2p

=11

hope this helps

have a nice day

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