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3 years ago

13

I need help with this problem.

1 answer:

jek_recluse [69]3 years ago

5 0

Hello, the question is find the angle of degrees in mDC and m angle ADB right??. the work for my awnser was DC= 45 and <ADB was 98 and 1/2. I hoped this helped if its wrong then tell me I'll try again thxs :). Plz mark me brainiest!!!! and there are more than 1 way to show work if u want!

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What equation represents the line that passes through points (1.-5) and (3 -17)?

zzz [600]

ALL LINES CAN BE REPRESENTED IN THE FORM $f(x) = ax+b$ .

We know that:

$f(1) = -5 \implies a\cdot(1)+b = -5 \implies a+b = -5$

and

$f(3) = -17 \implies a\cdot(3) +b = -17 \implies 3a+b = 17$

Observe that:

$3a+b = 2a+a+b = 2a+(a+b)$

So:

$2a+(a+b) =-17$

But we know that $a+b = -5$ , so:

$2a+(a+b) =-17$

$2a+(-5) = -17$

$2a = -12$

$a = -6$

Since:

$a+b = -5$

$(-6)+b = -5$

$b = 1$

So the line is:

$f(x) = 1-6x$

5 0

3 years ago

Please help me now please <br> I will mark you brainliest

maxonik [38]

Answer:

$BC = 15.01$

Step-by-step explanation:

Angle A is given.

For angle A, BC is the opposite leg.

For angle A, AC is the adjacent leg.

The trig ratio that relates the opposite leg to the adjacent leg is the tangent.

In general, for angle X,

$\tan X = \dfrac{opp}{adj}$

In our problem,

$\tan A = \dfrac{BC}{AC}$

$\tan 65^\circ = \dfrac{BC}{7}$

$BC = 7 \tan 65^\circ$

$BC = 15.01$

5 0

3 years ago

A student has scores of 64, 62, and 72 on his first three tests. He needs an average of at least 70

kotegsom [21]

Answer:

73 or more

Step-by-step explanation:

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2 years ago

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What is an organized system of counting?

Rasek [7]

You could use a number line, hope this helps

3 0

3 years ago

The exponential function, f(x) = 2^x, undergoes two transformations to g(x) = 1/3 x 2^x - 7. how does the graph change? select a

Ede4ka [16]

Answer:

A and D

Step-by-step explanation:

Since a (1/3) is less than 1, it is vertically compressed. The -7 is outside of the parenthesis so it is shifting down.

7 0

3 years ago

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