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Sedbober [7]
3 years ago
9

What's the answer to 3x =-21

Mathematics
2 answers:
Bas_tet [7]3 years ago
8 0
Your answer would be -7
allsm [11]3 years ago
6 0
3x=-21
divide each side by 3
x=-7
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3 years ago
Which set of sides will make a triangle
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the third one 10 cm, 9cm 9cm

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Image attached below. Please help.
goldfiish [28.3K]

Answer:

T,F,T,F,T

Step-by-step explanation:

1. It crosses it there becuase 4(0)-15=-15 for y

2: both top and middle answers are -23, so continuous

3: it increases over that period because the exponent keeps getting bigger

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3 years ago
Segment CD has endpoints (-4, 3) and (8, -1). Find the coordinates of the point that divides the line segment directed from C to
Diano4ka-milaya [45]

Answer:

A(0.8,\ 1.4)\ \text{or }\ A\left(\dfrac{4}{5},\dfrac{7}{5}\right)

Step-by-step explanation:

If point A(x,y) divides the segment with endpoints  C(x_1,y_1) and D(x_2,y_2) in the ratio m:n,

then

x=\dfrac{nx_1+mx_2}{m+n}\\ \\y=\dfrac{ny_1+my_2}{m+n}

In your case,

C(-4,3)\\ \\D(8,-1)\\ \\m:n=2:3

then

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Thus,

A(0.8,\ 1.4)\ \text{or }\ A\left(\dfrac{4}{5},\dfrac{7}{5}\right)

3 0
3 years ago
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ozzi
The fractions of the class is 1/4 because 1/4+1/5=2/5 and 2/5 of the class is in band.
5 0
3 years ago
Read 2 more answers
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