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3 years ago

Is the following definition of obtuse angles reversible? If yes, write it as a true biconditional.

Mathematics

1 answer:

Alexeev081 [22]3 years ago

8 0

I believe the answer is C.

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dillon pays x dollars to get a haircut. he gives the stylist a 15% tip. the expression representing his total cost is x + 0.15x

bagirrra123 [75]

Answer:

B) 1.15x, adding 15% to the cost of haircut is same as to multiply cost by 1.15

Step-by-step explanation:

Given expression = x + 15% of x

x + (15/100) x = x + 0.15x

= (1+ 0.15) x = 1.15x

15% = 0.15 , added to x = 1.15x

4 0

3 years ago

Factor 70a + 50. Write your answer as a product with a whole number greater than 1

olga2289 [7]

Answer:

10(7a +5)

Step-by-step explanation:

The greatest common factor of the two terms is 10. Factoring that out gives ...

10(7a +5)

_____

Other possibilities for meeting the problem requirement are ...

2(35a +25)
5(14a +10)

3 0

3 years ago

What is equivalent to 1/2+1/6

m_a_m_a [10]

Answer:

4/6 or 2/3.

Step-by-step explanation:

You need to multiply 1/2 by 3/3 so you can can the denominater having a 6.

3 0

3 years ago

Write an algebraic expression for each word expression. Then evaluate the expression for these values of the variable : 1/2,4,an

Yuki888 [10]

Answer:

1)p/4,2,1,1.625 2)x+1,3/2,5,7.5

Step-by-step explanation:

1) p/4

1/2 divided by 4=2

4/4=1

6.5/4=1.625

2) x+1

1/2+1=3/2

4+1=5

6.5+1=7.5

7 0

3 years ago

Someone please help me❤️ Urgently with at least 1

Oksanka [162]

Answer:

See step-by-step explanation

Step-by-step explanation:

Question 3: (4, -3)

Solving through elimination: Multiply the first equation by -3.

-3x+6y=-30

3x-5y = 27

Add. The x drops out.

y= -3

Substitute -3 in for y.

x-2y=10

x-2(-3)=10

x+6=10

x=4

Question 4: (2,5)

Solve through elimination: Multiply the second equation with 3.

$\frac{3}{2} x+y=8$

$\frac{9}{4} x-y=-\frac{1}{2}$

3/2= 6/4

15/4x=7.5

x=2

3/2 (2) + y = 8

3+ y =8

y=5

Question 5: (6,4)

Use your graph to graph.

$y=-\frac{1}{3} x+6$

Slope of -1/3

Y-intercept of 6 (0,6)

X-intercept of 18 (18,0)

$y=\frac{3}{2} x-5$

Slope of 3/2

Y-intercept of -5 (0,-5)

X-intercept of $\frac{10}{3}$ (

Question 6: (5, -7)

$Ax+2By=-41$

$4Ax-By=88$

$3A+2B(4)=-41$

$4A(3)-B(4)=88$

Solve by substitution:

Words of encouragement:

Good luck!

8 0

3 years ago