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
Greeley [361]
2 years ago
13

Help

Mathematics
2 answers:
zalisa [80]2 years ago
6 0
<h2>♪Answer : </h2>

Ingat rumus determinan fungsi kuadrat yaitu :

\longmapsto\boxed{\sf{D = b^2 - 4ac}}

Maka, Kita kembali jawab soalnya.

⏩Nomor (1) :

»8x² + 7x + 10 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 8 | b = 7 | c = 10

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 7² - 4(8)(10)
  • D = 49 - 4(80)
  • D = 49 - 320
  • D = -271✅

\:

⏩Nomor (2) ;

»2x² + 10x + 10 = 5

»2x² + 10x + 10 - 5 = 0

»2x² + 10x + 5 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 2 | b = 10 | c = 5

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 10² - 4(2)(5)
  • D = 100 - 4(10)
  • D = 100 - 40
  • D = 60✅
horrorfan [7]2 years ago
4 0

\\ \rm\hookrightarrow 8x^2+7x+10=0

Determinant be D

\\ \rm\hookrightarrow D=b^2-4ac

\\ \rm\hookrightarrow D=7^2-320

\\ \rm\hookrightarrow D=49-320

\\ \rm\hookrightarrow D=-271

#2

\\ \rm\hookrightarrow 2x^2+10x+10=5

\\ \rm\hookrightarrow 2x^2+10x+5=0

\\ \rm\hookrightarrow D=10^2-40

\\ \rm\hookrightarrow D=100-40

\\ \rm\hookrightarrow D=60

You might be interested in
Let $PQR$ be a triangle such that $\angle P = \angle Q + \angle R.$ Among all three exterior angles of triangle $PQR,$ what is t
saw5 [17]

Answer:

The exterior angle to the vertex P, measuring 90°

Step-by-step explanation:

The sum of the internal angles of any triangle needs to be equal 180 degrees. So, we can write two equations:

mP = mQ + mR

mP + mQ + mR = 180°

Substituting (mQ + mR) by mP in the second equation, we have:

mP + mP = 180°

mP = 90°

this right angle is the bigger angle in the triangle, because the sum of all three angles needs to be 180°.

Each exterior angle is the supplementary angle of the respective internal angle, so the bigger the internal angle, the smaller the external angle.

So if the bigger internal angle is mP = 90°, the smaller exterior angle is 180 - 90 = 90°.

5 0
3 years ago
10. (63 +27) = (b + 3)
Kobotan [32]

Answer:

b + 3 = 90

b = 87

the answer to the question

Step-by-step explanation:

4 0
3 years ago
HELP IM GIVING A Brainliest FAST FAST
erica [24]

Answer:

The answer is C because g is the farthest so a 180 degree angle

5 0
3 years ago
In △ABC, m∠ACB=90°, m∠ACD=60°, <br> CD<br> is the altitude to <br> AB<br> , and BD = 5 cm. Find AD.
LUCKY_DIMON [66]

Answer:

5cm

Step-by-step explanation:

Find the diagram attached.

From ΔBCD, ∠BCD = 90-∠ACD

∠BCD = 90-60

∠BCD = 30°

Also tan60 = CD/BD

tan 60 = CD/5

CD = 5tan60

CD = 5√3 cm

Similarly from ΔACD, tan30 = CD/AD

tan30 = 5√3/AD

AD = 5√3/tan30

AD =  5√3/(1/√3)

AD = 5√3 * √3/1

AD = 5 cm

Hence the length of side AD is 5cm

5 0
4 years ago
In order to find the y-intercept of a quadratic function, you should ___________.
dangina [55]
Your answer is C cause to corresponds to it!
8 0
3 years ago
Other questions:
  • True or false some whole numbers are negative
    15·2 answers
  • How can we tell if a number is divisible by 4? 
    12·2 answers
  • Nina paid $450 for 9 shirts. At this rate, how much would 12 shirts cost?
    13·2 answers
  • A square measures 9 inches on each side. WHAT IS its area rounded off to the nearest whole number
    8·2 answers
  • The ratio of adams height to sam's height is 4:3 how many times sam's height is adams height
    6·2 answers
  • How to solve this problem?
    13·1 answer
  • How to calculate the mode 5,10,12,4,6,11,13,5
    8·1 answer
  • Which expression is a cubic polynomial?
    12·1 answer
  • Y=2x+7 what is the slope (m)
    15·1 answer
  • A UW Madison professor is interested in learning about the variance of grades for university students. The professor gathers the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!