1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fomenos
3 years ago
10

Help pleaseeee thankyou :D

Mathematics
1 answer:
posledela3 years ago
7 0
X^2 - 3x + p = 0
x^2 + qx + 7 = 0

αβ = p..........................(1)
3α + 3β = -q..................(2)
3α3β = 9αβ = 7 
so substituting  for αβ from (1):-
9p = 7
p = 7/9

α + β = 3   ( from first equation)
from (2) -q = 3 (α + β)
so -q = 3*3 = 9   and q = -9
Answer is  p = 7/9 and  q = -9
You might be interested in
What is<br> -3/4 + 2 3/4
Fittoniya [83]

Answer:

2

Step-by-step explanation:

ok so let's start

were starting off with -3/4 and were adding 2 3/4 to that and it's equal to 2 3/4 subtract 3/4

-3/4 + 2 3/4 = 2 3/4 - 3/4

2 3/4 - 3/4 = 2

-3/4 + 2 3/4 = 2

it's 2 my dude or girl i don't know

3 0
2 years ago
6. Evaluate if y = 2.<br><br> -3y2 – y + 7
Greeley [361]

Answer:

the answer is -7

hope it helps you ❤

Step-by-step explanation:

-3×2×2-2+7= -7

8 0
2 years ago
find the value of the trigonometric function sin (t) if sec t = -4/3 and the terminal side of angle t lies in quadrant II
kodGreya [7K]

Answer:

sin(t) =\frac{\sqrt{7}}{4}

Step-by-step explanation:

By definition we know that

sec(t) = \frac{1}{cos(t)}

and

cos ^ 2(t) = 1-sin ^ 2(t)

As sec(t) = -\frac{4}{3}

Then

sec(t) = -\frac{4}{3}\\\\\frac{1}{cos(t)} =-\frac{4}{3}\\\\cos(t) = -\frac{3}{4}

Now square both sides of the equation:

cos^2(t) = (-\frac{3}{4})^2

cos^2(t) = \frac{9}{16}\\\\

1-sin^2(t) =\frac{9}{16}\\\\sin^2(t) =1-\frac{9}{16}\\\\sin^2(t) =\frac{7}{16}\\\\sin(t) =\±\sqrt{\frac{7}{16}}

In the second quadrant sin (t) is positive. Then we take the positive root

sin(t) =\sqrt{\frac{7}{16}}

sin(t) =\frac{\sqrt{7}}{4}

8 0
2 years ago
7%of£40 <br> show working out plz
kykrilka [37]

Answer:

7% of 40 is 2.80

Step-by-step explanation:

0.07 x 40 = 2.8

6 0
3 years ago
Read 2 more answers
Find the surface area of the prism
RUDIKE [14]
I don't think that is a prism...
I am pretty sure that the surface area is 448
do I know you?? Mohamed
4 0
3 years ago
Other questions:
  • The capsules and montage families love writing. Last year,each capsule wrote 4 essays, each montage wrote 6 essays, and both fam
    11·1 answer
  • What’s the answer of the equation:<br><br> 104mn + (-84mn) =36
    5·1 answer
  • Evaluate the expression for the given value of the variable(s). 5a + 5b; a = -6, b = -5
    14·1 answer
  • From a population of size 400, a random sample of 40 items is selected. The median of the sample Group of answer choices must be
    12·1 answer
  • Firewood is often sold by the cord. A cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. What's the volume of a cord
    9·1 answer
  • __ involves having a variety of investments in your __
    8·1 answer
  • (A) If the 13th and 38th terms of an arithmetic sequence are -53 and -128,
    15·1 answer
  • Please help me with this
    9·2 answers
  • The segments shown below could form a triangle.<br><br> A. True<br> B. False
    8·2 answers
  • the ratio of men to women at Wal-Mart was 3 to 5. If there were 350 women, How many men were in the store?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!