3 years ago

Can any kind soul help me please

Mathematics

1 answer:

bezimeni [28]3 years ago

6 0

Answer:

p-q= -4

p=q-4

x^2 + px + q=0

=> x^2 + (q-4)x + q = 0

d= b^2-4ac

=(q-4)^2 - 4(1)(q)

= q^2 + 16 -8q - 4q

=q^2 -12q+16

given that D=16

q^2 -12q+16 = 16

=> q^2 -12q = 0

=> q^2 = 12q

=> q = 12q/q

=> q= 12

Therefore the value of q is 12 and the value of p is q-4 = 12-4= 8

Hope you understood............

You might be interested in

A line with (5,6) and a slope of 2/15

BlackZzzverrR [31]

Slope, shmlope. What's the q?

4 0

4 years ago

Sandra waits tables at Polly's Tamales. While she is working, she receives a discount on any food she buys. If an item normally

Musya8 [376]

Answer: 6

Step-by-step explanation: 2/3 of 9 = 6

6 0

3 years ago

Determine the length of the longest metal rod which could be stored in a rectangle box 20 cm by 50 cm by 30 cm.

navik [9.2K]

Answer:

61.64 cm

Step-by-step explanation:

The longest metal rod which could be stored in a rectangular box will be equal to its diagonal:

$\therefore \: length \: of \:metal \: rod \\ = \sqrt{ {l}^{2} + {b}^{2} + {h}^{2} } \\ = \sqrt{ {20}^{2} + {50}^{2} + {30}^{2} } \\ = \sqrt{400 + 2500 + 900} \\ = \sqrt{3800} \\ = 61.64414 \\ = 61.64 \: cm$

5 0

4 years ago

Read 2 more answers

these cards are put int a bag. One card is chosen at random. (1,2,3,4,5,6,7,8,9,10) a.) what is the probability of choosing the

Rama09 [41]

Answer:

There are 10 cards in total.

The probability of choosing card with the number 4 is 1/10.

The probability of choosing card with the number 1 is 2/10 = 1/5 (since there are 2 cards with the digit 1 - 1, 10)

5 0

4 years ago

Read 2 more answers

The formula for the lateral area of a right cone is LA = rs, where r is the radius of the base and s is the slant height of the

damaskus [11]

Step-by-step explanation:

The formula for the lateral area of a right cone is :

LA = rs

Where

r is the radius of the base and s is the slant height of the cone

Equivalent expression,

$r=\dfrac{LA}{s}$

$s=\dfrac{LA}{r}$

Hence, this is the required solution.

6 0

3 years ago

Can any kind soul help me please​

Can any kind soul help me please