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3 years ago

11

BRAINLIESTTT ASAP! PLEASE HELP ME :)

2 answers:

ELEN [110]3 years ago

5 0

Answer:

B. False; to be concave the angles cannot be congruent.

Step-by-step explanation:

Regular Polygons are never concave.

enyata [817]3 years ago

3 0

Answer:

The answer is B

Step-by-step explanation:

In order for a polygon to be regular, all angles <u>must be congruent</u>.

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What shifts are occurring internationally in the division of labor and the roles of women in the labor force?

marishachu [46]

Answer:

Women's increased labor force participation represents a significant change in the U.S. economy since 1950. As of 2014, nearly six in ten women aged 16 and older (57.0 percent) worked outside the home (U.S. Bureau of Labor Statistics 2015a), compared with 33.9 percent in 1950 and 43.3 percent in 1970 (Fullerton 1999).

Step-by-step explanation:

8 0

3 years ago

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PLs help 50 PTS!!!!! PLEASE ILL GIVE BRAINLIEST!!!!!

Nookie1986 [14]

Answer:

$\large\boxed{y=\dfrac{1}{4}x^2-x-4}$

Step-by-step explanation:

The equation of a parabola in vertex form:

$y=a(x-h)^2+k$

<em>(h, k)</em><em> - vertex</em>

The focus is

$\left(h,\ k+\dfrac{1}{4a}\right)$

We have the vertex (2, -5) and the focus (2, -4).

Calculate the value of <em>a</em> using $k+\dfrac{1}{4a}$

<em>k = -5</em>

$-5+\dfrac{1}{4a}=-4$ <em>add 5 to both sides</em>

$\dfrac{1}{4a}=1$ <em>multiply both sides by 4</em>

$4\!\!\!\!\diagup^1\cdot\dfrac{1}{4\!\!\!\!\diagup_1a}=4$

$\dfrac{1}{a}=4\to a=\dfrac{1}{4}$

Substitute

$a=\dfrac{1}{4},\ h=2,\ k=-5$

to the vertex form of an equation of a parabola:

$y=\dfrac{1}{4}(x-2)^2-5$

The standard form:

$y=ax^2+bx+c$

Convert using

$(a-b)^2=a^2-2ab+b^2$

$y=\dfrac{1}{4}(x^2-2(x)(2)+2^2)-5\\\\y=\dfrac{1}{4}(x^2-4x+4)-5$

<em>use the distributive property: a(b+c)=ab+ac</em>

$y=\left(\dfrac{1}{4}\right)(x^2)+\left(\dfrac{1}{4}\right)(-4x)+\left(\dfrac{1}{4}\right)(4)-5\\\\y=\dfrac{1}{4}x^2-x+1-5\\\\y=\dfrac{1}{4}x^2-x-4$

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3 years ago

Select the postulate that is illustrated for the real numbers. 2(x + 3) = 2x + 6 The commutative postulate for multiplication Mu

madam [21]

Answer:

Step-by-step explanation:

Postulate 5: If two planes intersect, then their intersection is a line.

4 0

3 years ago

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In jaime's math class, 9 students chose soccer as their favorite sport. This amount represents 3/8 of the entire class. The equa

Daniel [21]

Answer:

24

Step-by-step explanation:

3/8=9

6/8=18

8/8 would be 6/8 plus 2/3 of nine which is six

6+18=24

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3 years ago

How much greater was Maiami’s annual rainfall than Albany’s Albany 46.92 miami61.05

Ilia_Sergeevich [38]

Answer:

52.94

Step-by-step explanation:

61.06

-46.92

=52.94

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3 years ago