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
PtichkaEL [24]
3 years ago
14

1.)12.5+(-31.5)=2.)-31.91+(-16.7)=3.)1/6+(-11/12)+2/3=4.)29+(-15.7)+(-31.05)=

Mathematics
1 answer:
Xelga [282]3 years ago
5 0
1. = Step 1. Simplify Brackets and you get 12.5 - 31.5 Step 2. Simplify and you get -19
 which is your answer.

2. = Step 1. Simplify Brackets and you get -31.91-16.7 Step 2. Simplify and you get -48.61

3. = Step 1. Simplify Brackets and you get \frac{1}{6} - \frac{11}{12} + \frac{2}{3} Step 2. Simplify and you get - \frac{1}{12}

4. Step 1. = Simplify Brackets and you get 29-15.7-31.05 Step 2. Simplify and you get -17.75
You might be interested in
. If α and β are the roots of
Lostsunrise [7]

Answer:

18x^2+85x+18 = 0

Step-by-step explanation:

<u><em>Given Equation is </em></u>

=> 2x^2+7x-9=0

Comparing it with ax^2+bx+c = 0, we get

=> a = 2, b = 7 and c = -9

So,

Sum of roots = α+β = -\frac{b}{a}

α+β = -7/2

Product of roots = αβ = c/a

αβ = -9/2

<em>Now, Finding the equation whose roots are:</em>

α/β ,β/α

Sum of Roots = \frac{\alpha }{\beta } + \frac{\beta }{\alpha }

Sum of Roots = \frac{\alpha^2+\beta^2  }{\alpha \beta }

Sum of Roots = \frac{(\alpha+\beta )^2-2\alpha\beta   }{\alpha\beta  }

Sum of roots = (\frac{-7}{2} )^2-2(\frac{-9}{2} ) / \frac{-9}{2}

Sum of roots = \frac{49}{4} + 9 /\frac{-9}{2}

Sum of Roots = \frac{49+36}{4} / \frac{-9}{2}

Sum of roots = \frac{85}{4} * \frac{2}{-9}

Sum of roots = S = -\frac{85}{18}

Product of Roots = \frac{\alpha }{\beta } \frac{\beta }{\alpha }

Product of Roots = P = 1

<u><em>The Quadratic Equation is:</em></u>

=> x^2-Sx+P = 0

=> x^2 - (-\frac{85}{18} )x+1 = 0

=> x^2 + \frac{85}{18}x + 1 = 0

=> 18x^2+85x+18 = 0

This is the required quadratic equation.

5 0
3 years ago
Read 2 more answers
4. Solve the equation for the given variable. For each step. Identity the property used to convert the equation. 22x + 11 = 4x -
Andrei [34K]

Answer:

x=-1

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the relationship between APB and minor arc AB?
Dmitry [639]

Answer:

Step-by-step explanation:

If APB is measured in radians, then the arc length AB = APB(r) where r is the radius of the circle.

4 0
3 years ago
What is 0.15% of 43 i suck at math it will help me so much
butalik [34]
.15% translates to
.0015, and "of" means to multiply. so .0015 multiplied with 43 is
.0645
7 0
3 years ago
There are 52 cards in a standard deck of playing cards.
scoray [572]

Answer:

208

Step-by-step explanation:

multiply 52 x 4 = 208

5 0
2 years ago
Other questions:
  • If f(8) =4, identify a point on the graph of f
    6·1 answer
  • The same honey is sold in two different jars. Large jar (540g): £4.10 Small jar (360): £2.81 By considering the amount of honey
    11·2 answers
  • I need 23 by tomorrow morning at the latest!! WILL GIVE BRAINLEST!
    8·1 answer
  • I do not get question 11 please help me!
    6·1 answer
  • I need help ASAP pls help !!
    14·1 answer
  • Help please help me i need to pass this test help me
    9·1 answer
  • Simplify it plzzzzz and thx
    9·1 answer
  • 7 + (42 − 8)<br><br> The value of the expression is
    12·2 answers
  • Tori bought 24 candy bars for 69 cents each. She used partial products to find the total cost in cents. Which are NOT possible p
    10·1 answer
  • PLEASEE HELP ME IM VERY CONFUSED ON THIS!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!