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3 years ago

PLEASE HELP WITH THIS QUESTION

Mathematics

2 answers:

alina1380 [7]3 years ago

5 0

Answer:

D) X >= to -1

Step-by-step explanation:

Since the dot on -1 is filled in, -1 is included. The arrow points to the right, implying that X is greater than or equal to -1.

dmitriy555 [2]3 years ago

3 0

It's D)

Because the full circle means "equal to" and it's going towards the right which means it will be greater.

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zheka24 [161]

Answer:

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3 years ago

The radius of the large sphere is double the radius of the

valentinak56 [21]

Answer:

Step-by-step explanation:

just do the comparation

Vb : Vs

b for big and s for small

4/3 π rb³ : 4/3 π rs³ (since there are 4/3 and π on both side, we can eliminate them so)

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3 years ago

Perform the indicated operation.<br> (-9 + 21) - (-12 + 4) =

Trava [24]

Answer:

Step-by-step explanation:

-9+21= 21

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6 0

3 years ago

Find the centroid of the triangle with these vertices: P (-1,7), Q (9,5), and R (4,3).

Mumz [18]

Answer:

The coordinates of the centroid are:

$O\:=\:\left(4,\:5\right)\:\:$

The diagram is also attached below.

Step-by-step explanation:

Given the vertices

P (-1, 7)

Q (9, 5)

R (4, 3)

We know that the intersection of medians brings the centroid of the triangle.

The centroid of a triangle is given by

$O\:=\:\left(\frac{P_x+Q_x+R_x}{3},\:\frac{P_y+Q_y+R_y}{3}\:\right)$

In this example,

$P_x=-1,\:P_y=7$

$Qx=9,\:Q_y=5$

$Rx=4,\:R_y=3$

substituting in the formula

$O\:=\:\left(\frac{-1+9+4}{3},\:\frac{7+5+3}{3}\:\right)\:\:$

$O\:=\:\left(\frac{12}{3},\:\frac{15}{3}\:\right)\:\:$

$O\:=\:\left(4,\:5\right)\:\:$

Therefore, the coordinates of the centroid are:

$O\:=\:\left(4,\:5\right)\:\:$

The diagram is also attached below.

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3 years ago

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Alisiya [41]

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3 years ago

PLEASE HELP WITH THIS QUESTION​

PLEASE HELP WITH THIS QUESTION