MATHEMATICS HIGH SCHOOL

What is the discriminant of the given equation ?X^2-2x+2+0
a)-12
b)8
c)-4
d)-8

Answers

Answer 1
Answer: ∆= b^2 - 4ac

where b= -2
a=1
c=2

therefore: 2^2 - 4 x 1 x 2
= 4 - 4 x 2
= 4 - 8
= -4

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tom sold half of his comic books and then bought six more. he now has 12. how many did he begin with?
Helen had 5/6 can of orange juice. She spilled 2/6 of a can. How much juice did Helen have left?
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Which equation correctly describes the relationship between the measures of the angle and arcs formed by the intersecting secant and tangent?m∠1=1/2(mJK−mKL)
m∠1=1/2(mJK+mKL)
m∠1=1/2mJK
m∠1=mJK−mKL

Answers

Angle m∠1 if formed by a tangent and  secant intersecting outside of circle. The intercepted arcs are arc LK and arc JK.
Thus;
Angle formed by Tangent and secant 
=1/2(DIFFERENCE of Intercepted Arcs)
m∠1=1/2(mJK-LK)

Answer: m∠1=1/2(mJK-KL)

Answer:

just took test, confirming this other answer is right, good luck y'all

Step-by-step explanation:

What is the circumference of this circle?2 cm
about 3 centimeters
about 13 centimeters
about 22 centimeters
about 35 centimeters

Answers

About 13 cm

circumference = 2 * pi * radius

Answer:

Option B

Step-by-step explanation:

C = 2πr where r is radius as given.

Let us take pi as 3.14

  • C = 2* 3.14* 2 = 12.56 cm

About 13 cm

I need help pls if u are good at math stuff(-2.2) · (-2) · (–1) · (5) = ?
1. 88
2. 5 1/2
3. -88
4. -5 1/2

Answers

Answer:

My answer came out to -22.

Step-by-step explanation:

Start multiplying from left to right:

Two negatives multiplied are positive:

-2.2·(-2)=4.4

A negative and a positive multiplied equal a negative:

4.4·(-1)=-4.4

-4.4·5=-22

Which table of values could be generated by the equation 4y-2x=16?

Answers

The table of values by the equation 4y - 2x = 16 is (d)

How to determine the table of values?

The table of values that complete the question is added as an attachment

The equation is given as:

4y - 2x = 16

Add 2x to both sides

4y = 2x + 16

Divide through by 4

y = 0.5x + 4

Set x = 0, 2 and 4

y = 0.5(0) + 4 = 4

y = 0.5(2) + 4 = 5

y = 0.5(4) + 4 = 6

So, we have:

x    y

0    4

2    5

4    6

Hence, the table of values by the equation is (d)

Read more about linear equations at:

brainly.com/question/14323743

#SPJ6

a goblet contains 3 red balls, 2 green balls, and 5 blue balls. if we choose a ball, then another ball without putting the first one back in the goblet, what is the probability that the first ball will be red and the second will be blue? 3/20

Answers

Answer: (1)/(6)

Step-by-step explanation:

The chance of the first ball being red is  (3)/(10).

The chance for the second ball being blue is  (5)/(9), as the red ball is not added back in. To find the chance of both of these happening, you multiply them together.

(3)/(10) · (5)/(9) = (15)/(90) which simplifies to (1)/(6).

For this week only, you can buy a Dell for $2988, including taxes. Included in the offer is a finance option for 4 years at an annual percentage rate of 3.5%. Find the monthly payment.

Answers

Answer:

$66.80

Step-by-step explanation:

The monthly payment can be computed using the pmt formula in excel spreadsheet as shown below:

=pmt(rate,nper,-pv,fv)

the rate is the interest rate of 3.5% divided by 12 months to show interest rate per month

nper is the number of months it would take to complete the payments which is 4 years multiplied by 12 months i.e 48 months

pv is the cost of the gadget at $2,988

fv is the sum of all month payments which is not unknown

=pmt(3.5%/12,48,-2988,0)=$66.80  
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