3 years ago

What is the length of DE is the quadrilateral is a square ? Options A)3 B)10 C)5 D)1

Mathematics

1 answer:

maxonik [38]3 years ago

6 0

2x+3=5x

3=3x

x=1

2(1)+3=

2+3=

your answer is 5

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What are the steps to construct parallel lines using a compass and straightedge?

nevsk [136]

See if the distance between the two lines is consistent with a compass.

Make sure the lines intersect at right angles with the corner of a piece of paper.

Measure each of the angles with a straightedge.

There is no way to ensure you have constructed parallel lines.

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3 years ago

The area of circle B is 121 times greater than the area of circle A. The radius of circle B is 44. What is the radius of circle

xxMikexx [17]

Formula:
$\bigg( \dfrac{radius_1}{radius_2} \bigg)^2 = \dfrac{area_1}{area_2}$

Plug in the values:
$\bigg( \dfrac{r}{44} \bigg)^2 = \dfrac{1}{121}$

Simplify LHS:
$\dfrac{r^2}{1936} = \dfrac{1}{121}$

Multiply by 1936 on both sides:
$r^2 = \dfrac{1936}{121}
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Simplify RHS:
$r^2 = 16$

Square root both sides:
$r = 4$

Answer: The radius is 4 units. (Answer B)

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3 years ago

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Artyom0805 [142]

Answer:

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Step-by-step explanation:

All you have to do is see what point of the line falls right above 7, and then see what number corresponds to that point.

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3 years ago

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Rewrite the equation in slope-intercept form: 8x - 3y - 5 = 0

algol [13]

Slope-Intercept Form: y = 8/3x + −5/3

6 0

3 years ago

What is the equation of the circle graphed below? Use the caret ( ^ ) to enter any exponents; for example, write x2 as x^2.

kvv77 [185]

Equation of a circle in standard form:
(x-h)²+(y-k)²=r²
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(h,k) is the center.

In this case:
(h,k) =(0,0) (h=0,k=0 )
r=4

Therefore:
(x-0)²+(y-0)²=4²
x²+y²=16

Answer: x²+y²=16

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3 years ago