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irga5000 [103]
3 years ago
10

E

Mathematics
1 answer:
solniwko [45]3 years ago
5 0

9514 1404 393

Answer:

  43°

Step-by-step explanation:

Following the instructions is generally useful.

  5x +9 = 30 -3x +27 +2x

  6x = 48 . . . . add x-9

  x = 8 . . . . . . .divide by 6

  27 +2x = 27 +2(8) = 43 . . . . substitute into the expression for angle DFE

angle DFE = 43°

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HELP I NEED HELPP! Evaluate the expression for the given values.
elena-s [515]

Answer:

When x = 12, y = 4, and z = 2, 8x + 2yz = 112.

Step-by-step explanation:

8x + 2yz

Substitute variables given:

x = 12

y = 4

z = 2

8(12) + 2(4)(2)

Multiply 8 and 12.

96 + 2(4)(2)

Multiply 2 and 4.

96 + 8(2)

Multiply 8 and 2.

96 + 16

Add 96 and 16.

112.

8 0
3 years ago
Your sister starts a new business selling iced tea. She borrowed money from you for the initial supplies, which cost a total of
Ivenika [448]

Answer:

Question 1 - she will make $10.50 and still owe you $5.25 because 0.35 x 30 = 10.25

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3 years ago
Please help me solve this! 50 points.
Alex73 [517]
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Just add 1 to both sides to get x = 9y + 1

Then plug 9y + 1 into the first equation for x

7(9y+1) - 9y = 1

63y + 7 - 9y = 1

54y + 7 = 1

54y = -6

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7 0
3 years ago
Read 2 more answers
How many x-intercepts does the graph of y = 2x^2 – 8x + 5 have?
nydimaria [60]
A graph of the equation shows the appropriate choice to be
  C. 2

_____
If you would rather, you can look at the value of the discriminant. For the equation y = ax²+bx+c, the discriminant (d) is
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For your equation, this evaluates to
  d = (-8)²-4(2)(5) = 64 -40 = 24
When the discriminant is positive, the function has two real roots (2 x-intercepts). When it is zero, there is only one x-intercept, and when it is negative, there are none (the roots are complex).

8 0
3 years ago
Read 2 more answers
What is the value of x?
stiks02 [169]

Answer:

X= 15

Step-by-step explanation:

Since the angles are equal the equation to solve would be:

3x + 20 = 5x - 50

you will subtract 3x from 5x and get 2x

20 = 2x -50

subtract 20 from 50 to get 30

2x= 30

divide each side by 2

\frac{2x}{2}  = \frac{30}{2}

X= 15

Hope this helps

4 0
3 years ago
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