Find the length of AD in the diagram shown.

Mathematics

1 answer:

Sophie [7]2 years ago

5 0

No diagram :(
can you upload a picture so we can help out or a description? thanks!

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-3c=15 c = __ help plz

LuckyWell [14K]

You would divide negative 3 (-3) from both sides to keep the c by itself. When you divide a positive by a negative it becomes negative.

Dividing 15 by -3 would equal -5, so c = -5

7 0

3 years ago

Sarah has a bag of 50 skittles, some are red and some are yellow. Sarah randomly pulls a skittle out of the bag and records it,

Leno4ka [110]

Answer:

Step-by-step explanation:

Assume n is the number of times she pick a skittle out of the bag

The probability she pick out red : 8/n

The probability she pick out yellow : 12/n

=> The ratio of red and yellow skittle : 8/n : 12/n = 8/12 = 2/3, means every 2 red skittles we have 3 yellow ones.

But we have 50 skittles, so the likely numbers of reds in the bag is = 2* $\frac{50}{5}$ = 20

6 0

3 years ago

Solve for n: 3xn-9=6y

Trava [24]

Answer:

y= 13/6 xn - 3/2,x€ R, n€ R

8 0

3 years ago

The measures of all of the interior angles of a triangle are in the extended ratio 1 : 2 : 3. The value of the smallest angle is

jarptica [38.1K]

The sum of the interior angles of a triangle is 180°.

Let's suppose that all 3 angles in the ratio are divisible by a value x.

So the three angles become 1x, 2x and 3x.

1x + 2x + 3x = 180°

6x = 180°

x = 30° [ By dividing both sides by 6 ]

Thus the three angles are: 1x = 30° ; 2x = 2*30 = 60° ; 3x = 3*x = 90°

Hence the smallest angle is 30°.

7 0

3 years ago

The sum of a number and 8 is no more than the square of the difference of the number and 4.

MrRissso [65]

Let the number be x,
The sum of the number and 8 is
$(x + 8)$
The square of the difference of the number and 4 is
$(x - 4) {}^{2}$

Hence the inequality is
$(x + 8) \leqslant (x - 4) {}^{2}$

The correct answer is C

6 0

2 years ago