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3 years ago

11

Can someone help me please .

2 answers:

Levart [38]3 years ago

4 0

P _< 172 should be correct

umka21 [38]3 years ago

4 0

I’m pretty sure it’s D

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Plot point C(2,7). If M is the midpoint of CD , what are the coordinates of D?

Y_Kistochka [10]

Answer:

The coordinates of D is (-4,-9)

Step-by-step explanation:

Given

C = (2,7)

<em>M=(-1,-1) ----- Missing part of question</em>

Required

Determine the coordinates of D

<em>Let the coordinates of D be (x₂,y₂)</em>

<em>We'll solve this question using mid point formula;</em>

<em></em> $M(x,y) = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$ <em></em>

<em>Where</em>

$C(x_1,y_1) = (2,7)$ and $M(x,y) = (-1,-1)$

Put these values in the formula

$(-1,-1) = (\frac{2+x_2}{2},\frac{7+y_2}{2})$

By comparison;

$-1 = \frac{2+x_2}{2}$ and $-1 = \frac{7+y_2}{2}$

$-1 = \frac{2+x_2}{2}$

Multiply both sides by 2

$-2 = 2 + x_2$

Subtract 2 from both sides

$-2 -2 = x_2$

$x_2 = -4$

$-1 = \frac{7+y_2}{2}$

Multiply both sides by 2

$-2 = 7 + y_2$

Subtract 7 from both sides

$-2 - 7 = y_2$

$y_2 = -9$

<em>Hence, the coordinates of D is (-4,-9)</em>

4 0

3 years ago

HELP ME!!!! ASAP!!! PLEASE!!!<br> Explain why the equation (x-6)^2-3=13 has two solutions.

Yuki888 [10]

It has 2 equations bc it hasq 2 part

3 0

3 years ago

Read 2 more answers

Which expression is equal to the expression below?

Debora [2.8K]

Answer:

48

Step-by-step explanation:

(2*6)4

(12)4

48

Hoped it helped :)

4 0

2 years ago

Jim has 12 colored papers 8 bows 2 different colored markers and 2 envelopes How many different cards can Jim make

ikadub [295]

384 because 12*8=96*2=192*2=384

8 0

2 years ago

Which is the equation of a hyperbola centered at the origin with y-intercepts +12 -12, and asymptote y=3x/2

dangina [55]

Answer:

$\frac{y^2}{144}-\frac{x^2}{64}=1$

Step-by-step explanation:

The equation of a hyperbola centered at the origin with vertices on the y-axis is given by: $\frac{y^2}{a^2}-\frac{x^2}{b^2}=1$

The vertices of the hyperbola are the y-intercepts (0,12) and (0,-12)

This implies that:

$2a=|12--12|$

$2a=24$

$a=12$

The asymptote equation of a hyperbola is given by:

$y=\pm\frac{a}{b}x$

The given hyperbola has asymptote: $y=\pm\frac{3}{2} x$

By comparison; $\frac{a}{b}=\frac{3}{2}$

$\implies \frac{12}{b}=\frac{12}{8}$

$\implies b=8$

The required equation is:

$\frac{y^2}{12^2}-\frac{x^2}{8^2}=1$

Or

$\frac{y^2}{144}-\frac{x^2}{64}=1$

6 0

3 years ago

Read 2 more answers