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rosijanka [135]
4 years ago
8

What is the value of x help pls

Mathematics
2 answers:
Harman [31]4 years ago
4 0

Answer:

75°

Step-by-step explanation:


RSB [31]4 years ago
3 0

Answer: A: 75°

Step-by-step explanation:

Here the angles of the given triangle are 70°, 35° and x

Since, the sum of all three angles of a triangle is 180°,

70^{\circ} + 35^{\circ} + x = 180^{\circ}

\implies 105^{\circ} + x = 180^{\circ}

\implies x = 75^{\circ}

⇒ Option A is correct.

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yKpoI14uk [10]
If the diameter is 8 inches, the circumference is 8π inches.  So if the pet turned the wheel 100 revolutions the distance traveled is:

d=100(8π) inches

d=800π inches

d≈2513.27 inches
5 0
3 years ago
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Ben left a 20% tip for his later if he left $4.20 how much did his bill come before the tip
Nataly [62]

Answer: 21 dollars was his bill before the tip

Step-by-step explanation: 4.20 is 20% of what he paid with no tip included. This means you can set up an equation like this.

4.20 = .2x      This means that $4.20 is (is means =) 20% of (of means multiply) x (which is the unknown factor).

7 0
4 years ago
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The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y - 4 = 1/4(x- 8). What
Sladkaya [172]

Hi! I'm happy to help!

Point slope form states that y-y_{1}=m(x-x_{1}). m represents your slope (rise/run) and y_{1} and x_{1} represent your first y and x points, and y and x represent your second y and x points. We already have our equation here:

y - 4 = 1/4(x- 8)

Now, let's dive into what slope-intercept form is. Slope intercept form states that y=mx+b. m represents our slope, b represents our y intercept, y represents a y point, and x represents the corresponding x point.

Since we know our m, we can solve for b, by using our other numbers. Let's use our first set of coordinates.

4=1/4(8)+b

4=2+b

2=b

Now our second set to double check:

2=1/4(0)+b

2=0+b

2=b

We know that b must equal 2, so our equation must be y=1/4x+2, which is  option 3.

<u>You should pick option 3.</u>

<u>(y-intercept is where the line hits the y-axis(when x=0). We could've used our second coordinates (0,2), where x equals 0 to know that 2 is the y-intercept (b). This shortcut only works on specific problems though.)</u>

I hope this was helpful, keep learning! :D

8 0
3 years ago
Factor 8x3 − 343.
Sunny_sXe [5.5K]

Answer:

A) (2x − 7) (4x² + 14x + 49)

C) (3x + 5) (9x² − 15x + 25)

Step-by-step explanation:

Sums and differences of cubes factor as:

a³ + b³ = (a + b) (a² − ab + b²)

a³ − b³ = (a − b) (a² + ab + b²)

8x³ − 343 is a difference of cubes.

(2x)³ − 7³

(2x − 7) (4x² + 14x + 49)

27x³ + 125 is a sum of cubes.

(3x)³ + 5³

(3x + 5) (9x² − 15x + 25)

6 0
3 years ago
Determine whether the quadrilateral is a parallelogram justify your answer.
Kay [80]
SOLUTION:
From the figure, all 4 angles are congruent. Since each pair of opposite angles are congruent, the quadrilateral is a parallelogram by Theorem 6.10.
8 0
4 years ago
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