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3 years ago

Please answer urgent!

Mathematics

1 answer:

Natalka [10]3 years ago

5 0

First thing we need to do is find the slope. since this equation is already in slope intercept form, which is y = mx + b, the slope is already shown. It is 1/2

The slope of the line perpendicular to the given line is the negative inverse of the slope. The negative inverse of 1/2 is -2.

Next, use the slope we determined was the negative inverse ( -2 ) and the given point ( 1,3 ) to write the equation of the line in point slope form. The formula is y − y1 = m(x − x1).

With all the correct numbers plugged in, The equation is:

y - 3 = -2 ( x - 1 )

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How do you use units to solve problems

Serga [27]

Answer:

Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.

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3 years ago

Choose the explanation that shows why ΔADE is similar to ΔABC.

Natasha2012 [34]

Recall that a dilation with center (0, 0) and scale factor $k$ maps $(x,y)$ onto $(kx, ky)$ .

Now, triangle ADE is formed by

$A=(0,0),\quad D=(0,2),\quad E=(4,0)$

Whereas triangle ABC is formed by

$A=(0,0),\quad B=(0,4),\quad C=(8,0)$

In other words, the coordinates of B and C can be obtained by multiplying by 2 the coordinates of D and E.

This means that you get ABC from ADE by dilating with center (0,0) and scale factor 2.

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3 years ago

Read 2 more answers

PLEASE HELP... WILL GIVE BRAINLIEST

likoan [24]

Answer:

the answer is B.

Step-by-step explanation:

hope this helps!

7 0

3 years ago

Read 2 more answers

I cant figure out how to do this i keep getting the wrong answer

Savatey [412]

The formula for the secants of a circle is, in this case, (AB + BC) x BC = (ED + DC) x DC. After plugging in the known values we get: (ED + 10) x 10 = 420. Next, we can solve and get: ED = 32. Finally, we add up ED and DC and get a final answer of D. 42.

Hope this helps!

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3 years ago

PLEASE HELP ME. I WILL BRAINLIEST

Oliga [24]

Answer:

Step-by-step explanation:

vertex=(1/2,-49/4)

y intercept=(0,12)

x intercept=(4,0)(-3,0)

Axis of symmetry=1/2

Domain=(-∞,∞){x/x∈R}
Range= -49/4,∞){y/y≥ -49/4}

3 0

4 years ago