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4 years ago

Quadrilateral ABCD is an isosceles trapezoid with AB || CD If Angle D= 70 degrees, which statement is false?

Mathematics

2 answers:

liq [111]4 years ago

8 0

The right answer is C or B

LuckyWell [14K]4 years ago

7 0

I think it is d angle a=110

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Which statement best describes the function represented by the graph?

stich3 [128]

The last one decreasing on the interval (-infinity, 0) where it becomes constant

4 0

3 years ago

Read 2 more answers

Round the answer using proper significant figures. <img src="https://tex.z-dn.net/?f=%5Cfrac%7B15.58701%7D%7B2.638%7D" id="T

Maslowich

Answer:

5.909

Step-by-step explanation:

The quotient is approximately ...

15.58701/2.638 ≈ 5.9086467...

The least-precise contributor to this calculation has 4 significant digits, so it would be appropriate to round the result to 4 significant digits:

5.909

_____

Additional comment

The quotient has a 659-digit repeating decimal fraction starting with 6467....

7 0

3 years ago

I need to know the answer for 19,20,21

pantera1 [17]

19. $30,681.82
20. Find surface area for this one
21. Use geometry

7 0

3 years ago

Can you please help me with these two problems. I've been struggling on this topic for a while now!

Nadya [2.5K]

First Question:

To find the value of K when F is 5 you must plug in 5 for F and solve for K:

5 = $\frac{9}{5}$ k - 455.67

To do this first add 455.67 to both sides (what you do on one side you must do to the other). Since 455.67 is being subtracted on the right side of the equation, addition (the opposite of subtraction) will cancel it out (make it zero) from the right side and bring it over to the left side.

5 + 455.67= $\frac{9}{5}$ k - 455.67 + 455.67

460.67 = $\frac{9}{5}$ k + 0

460.67 = $\frac{9}{5}$ k

Now we must completely isolate k by removing $\frac{9}{5}$ from the right side of the equation. In order to do this you must multiply both sides of the equation by $\frac{5}{9}$ . This is simply the reciprocal of $\frac{9}{5}$ . Multiplying a fraction by its reciprocal always equals 1

460.67 * $\frac{5}{9}$ = $\frac{9}{5}$ k * $\frac{5}{9}$

$\frac{460.67 * 5}{9} =\frac{9*5}{5*9} k$

$\frac{2303.35}{9} = \frac{45}{45}k$

255.927 = k

k ≈ 255.93

Second Question:

y = - $\frac{1}{4} (x + 8) + 2$

X-intercept is set up like so: (0, y). The x value of the x-intercept will ALWAYS be zero. Knowing this you can already plug in zero for the x-value in the equation given above:

y = - $\frac{1}{4} (0 + 8) + 2$

Now all we need to do is solve for the y-value! To do this you must solve using the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction) REMEMBER: IF NOT APPLICABLE TO THE EQUATION YOU MAY SKIP THAT STEP IN PEMDAS .

y = - $\frac{1}{4} (0 + 8) + 2$

Parentheses...

y = - $\frac{1}{4} (0 + 8) + 2$

0 + 8 <<<In the parentheses so you must solve first

so...

y = - $\frac{1}{4} (8) + 2$