Mathematics High School

pls help me ASAP

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Pls Help Me ASAPty

Answers

Answer 1

Step-by-step explanation:

D = b² - 4ac

#1

D = 10² - 4 · 3 · 2

D = 100 - 24

D = 76

#2

D = (-5)² - 4 · 1 · (-4)

D = 25 - (-16)

D = 26 + 16

D = 42

#3

D = 7² - 4 · 1 · (-8)

D = 49 - (-32)

D = 49 + 32

D = 81

#4

D = 0² - 4 · 1 · (-9)

D = 0 - (-36)

D = 36

#5

D = (-6)² - 4 · 5 · 10

D = 36 - 200

D = - 164

Related Questions

Step 3: Multiply by the scalar (1 over the determinant): Aâ’1 = a11 a12 a21 a22 a11 = a12 = a21 = a22 =

Answers

Answer:

a11 = 1

a12 = -1

a21 = -1.5

a13 = 2

√45 * √96
Please show your work on how you got the answer!

Answers

Answer:

45=6.7, 96=9.79

Step-by-step explanation:

because (6.7)6.7 =45 that’s how square root works… squared means two times a number

What type of transformation is shown in the figure?

A) dilation
B) rotation
C) reflection
D) translation

Answers

Answer:

correct answer is b rotation

B im pretty sure, sorry if incorrect

I need the answer to A and B

Answers

Answer:A=2 B=1

Step-by-step explanation:

Solve the equation. 6x+7=8x−15

Answers

x=11

Step-by-step explanation:

6x+7=8x-15

7+15=8x-6x

22=2x

x=22/2

x=11

3+3+3+34+5+6+7+7+[tex]2+2[/tex]

Answers

Answer:

72

Step-by-step explanation:

Hope it helped brainiest plz

Herman and his dad are leaving early in the morning for his lacrosse tournament. Their house is 210 miles from the tournament. They plan to stop and eat after 2 hours of driving, then compete the rest of the trip. Herman's dad plans to drive at an average speed of 60 miles per hour. How long will the second part of the trip take

Answers

The second part of the trip took 1.5 hours.

Average Speed is the ratio of the total distance travelled to the total time taken to cover that distance. It is given by:

Average Speed = total distance ÷ total time

Given that the distance from the house to the tournament is 210 miles, hence:

Total distance = 210 miles

Also, The journey was in two parts, the first part took 2 hours. Let the second part take t hours. Therefore:

Total time = t + 2

The average speed of 60 miles per hour, hence:

60 = 210 ÷ (t + 2)

60(t + 2) = 210

60t + 120 = 210

60t = 90

t = 1.5 hours

Therefore the second part of the trip took 1.5 hours.

Find out more at: https://brainly.com/question/9834403

A local nonprofit organization is selling popcorn to raise money for hurricane relief. The organization paid $4 per bag for the popcorn and sold it for $5 per bag. What was the percent markup on each bag of popcorn?

Answers

Percent markup is 125% sorry if I’m wrong

Is ""2.345432543..."" a rational number

Answers

Answer:

Yes, it is a rational number

Step-by-step explanation:

A rational number is any integer, fraction, terminating decimal, or repeating decimal.

Please help I will mark brainliest!

Answers

Answer:

9.

[tex]x \geqslant - 14[/tex]

10. x<7

If 2 angles in a triangle are 71 degrees and 56 degree, what is the measure of the third angle?

Answers

Answer:

53

Step-by-step explanation:

Sol'n

Let the remaining angle of a triangle be x.

x+71+56=180 (Sum of angles of a triangle is 180°)

or, x+127=180

or, x=180-127

.:, x=53°

.:, The measure of third angle is 53°

11
W20
A ice cream cone cost $3 plus an additional $0.50 per scoop. James pald a total of $4.50, which equation below
models this situation.
4.50 + 0.50x = 3
0.50x + 3 = 4.50
0.50x = 7.50
3x + 0.50 = 4.50

Answers

Answer:

B: 0.50x + 3 = 4.50

Step-by-step explanation:

James needed an additional 3 scoops so the x would have to be on $0.50. the $3 is what the cone cost so it has to be with the scoop price. $4.50 is the total price of the ice cream so that would be on the other side of the equal sign, resulting in 0.50x + 3 = 4.50

x-16=9(2x+3)-9 find x

Answers

Answer:

x= -2

TO MUCH STEPS

Hey I really need help with this

Answers

Answer:

2.7 cm

Step-by-step explanation:

subtract DC from EC

2.7cm

Subtract dc from ec

Question 11 of 40
Solve the inequality.
4x < 20
A. X> 5
B. x < 5
C. x < 80
D. X> 80

I know it’s 5 just which way is the sign supposed to point?

Answers

Answer:

b

Step-by-step explanation:

4x<20

4/4 x < 20/4

x<5

Kayleigh has 2 apples for every 3 oranges in her fruit basket. If Kayleigh has 15 oranges altogether in her basket, how many apples must she have in her basket?
5 apples 10 apples
25 apples 15 apples

Answers

She will have 10 apples because there is a 2:3 ratio.

Answer:

10 apples.

Step-by-step explanation:

find f^-1(x) where
f(x)=3x+2/x

Answers

Answer:

x = -3y + 2

-3y = x - 2

f^-1(x) = y = -(x-2)/3

Step-by-step explanation:

The inverse here is just straight line so it is a function

A polynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. If the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

The graph of the function is positive on (–6, –2).
The graph of the function is negative on (negative infinity, 0).
The graph of the function is positive on (–2, 4).
The graph of the function is negative on (4, infinity).

Answers

Answer:

A. The graph of the function is positive on (–6, –2)

Step-by-step explanation:

The given function is an increasing function that intercepts the x- axis at -6, -2 and 4 and touches at 0.

It has minimum at negative infinity, maximum at positive infinity, local minimums between -2 and 0 and between 0 and 4, local maximum between -6 and -2.

Approximate shape is given in the attached.

Correct choice is the first one, the rest choices are all incorrect.

Please helpppppp!!!!

Answers

Answer:

3 times

Step-by-step explanation:

If Mac were to get 76 apples from her friends and then get 3 more from the store, and then find two absolutely fine apples in the sewers, then go for a walk and find 7500 apples in someone's car, how many healthy apples would she find? Bet you can't solve it ;)

Answers

Answer:

3?

Step-by-step explanation:

Answer:

None because the apples are all poisoned.

Step-by-step explanation:

In how many ways can Carlos draw a blue or a green marble from a jar containing 30 blue marbles and 6 green marbles?


5


36


24


180

Answers

Answer:

5 ways

Step-by-step explanation:

He can draw in 5 ways

Answer:

36

Step-by-step explanation:

I chose 5 and missed it.  Review says correct answer is 36

3x²-x+1 is a factor of ax⁴+bx³+12x² - 6x + 1 . Then a-b equals​

Answers

Answer:

a-b = 31     (a ≠ b)

Step-by-step explanation:

(3x²-x+1)(px²+qx+1) = ax⁴+bx³+12x² - 6x + 1

3px⁴+(3q-p)x³+(3+p-q)x²+(q-1)x+1 = ax⁴+bx³+12x² - 6x + 1

q-1 = -6             q = -5

3+p-q = 3+p-(-5) = 8+p = 12             p = 4

b = 3q-p = 3*(-5) - 4 = -19

a = 3p = 3*4 = 12

a-b = 12 - (-19) = 31

What is 12x40
What is 90x8,000
What is 7x9

Answers

Answer:

12 x 40 = 480

90 x 8,000 = 720,000

7 x 9 = 63

[tex]Hey! :)[/tex]

[tex]QUESTION:[/tex]

What is 12x40??

[tex]ANSWER:[/tex]

[tex]480[/tex]

[tex]QUESTION:\\90*8,000\\ANSWER:\\720,000\\QUESTION:\\7*9\\ANSWER:\\63[/tex]

[tex]^C^O^M^M^E^N^T^S^:[/tex]

Hope it helps! Brainliest?

[tex]^a^n^s^w^e^r^e^d:\\\\^*GraceRosalia^*[/tex]

A solid sphere is cut into 3 equal wedges. The volume of each wedge is

V=nrSolve the formula for r.

O A. r= VA

B. r = 79V - 47

O c. r= 9V (47)

O D. r = = 1

Answers

It is b become more b

Please help. I don't know the answer

Answers

Answer:

The answer is 3x+4y<-12

Step-by-step explanation:

Solve for the value of y.

Answers

Answer:

y = 4(degrees)

Step-by-step explanation:

90-60 = 30

30 = 8y-2

32 = 8y

4 = y

lets check

32-2 = 30+60 = 90

correct :D

Could a triangle have angle measures of 94°, 106°, and 11° EXPLAIN HOW YOU KNOW.​

Answers

Answer:

Nope

Step-by-step explanation:

All angles have to measure up to where adding up two of any angles will result in a number greater than or equal to the angle that was not added.

But here if we add up 94° and 11°, we end up with 105°.

Since 105° is lower than the angle not added, which is 106°, this triangle cannot exist.

Please help, Giving brainliest! And please show work

Answers

Answer:

4

Step-by-step explanation:

order of operations PEMDAS

parentheses first

[tex](5 + 9) \times 5 \div 7 - 6[/tex]

[tex]14 \times 5 \div 7 - 6[/tex]

multiply

[tex]70 \div 7 - 6[/tex]

divide

[tex]10 - 6[/tex]

subtract

[tex]4[/tex]

Answer:

Your answer to this equation is 4.

Step-by-step explanation:

( 5 + 9 ) × 5 ÷ 7 - 6 =

( 14 ) × 5 ÷ 7 - 6 =

70 ÷ 7 - 6 =

10 - 6 =

4

Solve 4a = 20
solve 3y + 9 = 24
solve y/3 - 5 = 4
solve 3=9 - 4k
solve 6w=4w=9
solve 3x + 8 = 2

please answer with an explanation
60 points given

Answers

Here's the solutions :

1. solve for a :

[tex]4a = 20[/tex]

[tex]a = \dfrac{20}{4} [/tex]

[tex]a = 5[/tex]

2. solve for y :

[tex]3y + 9 = 24[/tex]

[tex]3y = 24 - 9[/tex]

[tex]3y = 15[/tex]

[tex]y = \dfrac{15}{3} [/tex]

[tex]y = 5[/tex]

3. solve for y :

[tex] \dfrac{y}{3} - 5 = 4[/tex]

[tex] \dfrac{y}{3} = 5 + 4[/tex]

[tex] \dfrac{y}{3} = 9[/tex]

[tex]y = 9 \times 3[/tex]

[tex]y = 27[/tex]

4. solve for k :

[tex]3 = 9 - 4k[/tex]

[tex]3 - 9 = -4 k[/tex]

[tex] - 6 = - 4 k[/tex]

[tex]k = \dfrac{ - 6}{ - 4} [/tex]

[tex]k = \dfrac{3}{2} \: \: \: or \: \: 1.5[/tex]

5. there's something wrong with this question.

6. solve for x :

[tex]3x + 8 = 2[/tex]

[tex]3x = 2 - 8[/tex]

[tex]3x = - 6[/tex]

[tex]x = \dfrac{ - 6}{3} [/tex]

[tex]x = - 2[/tex]

i hope it helped...

how do you solve the question solve for n 1/3 n = 6

Answers

Answer:

[tex]n = 18 \\ [/tex]

Step-by-step explanation:

[tex] \frac{1}{3} n = 6 \\ n = 6 \div \frac{1}{3} \\ n = 6 \times 3 \\ n = 18 \\ [/tex]

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