3 years ago

25 POINTS!!

Mathematics

1 answer:

Scilla [17]3 years ago

3 0

I know the answer to the first one, but not the second. There is 1 "cool" triple. hope this helps!

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A crate of pears that usually costs $50 is on sale for 10% off. What is the sale price for the crate of pears?

lorasvet [3.4K]

Answer:5
Explaining:
10% of 50
= 10%=10/100 = 0.1
= 0.1 (x) times 50
= 5

3 0

3 years ago

-7w+8 (w+1)=w-7<br> Please show work

kvv77 [185]

Hello there.^••^

−7w+8(w+1)=w−7
w+8=w−7
w+8−w=w−7−w8=−7
8−8=−7−80=−15
No solutions.

6 0

3 years ago

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What does x equal ???

Rina8888 [55]

88 degrees is the correct answer

7 0

3 years ago

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Verify identity list steps. Cot(t)(1-cos^2(t))=cos(t)sin(t)

storchak [24]

Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)

You should already know this:

$\huge{Cot(t) = \frac{1}{tan(t)} = \frac{1}{\frac{sin(t)}{cos(t)}} = 1\div \frac{sin(t)}{cos(t)} = 1\times \frac{cos(t)}{sin(t)}=\boxed{\frac{cos(t)}{sin(t)}}$

You should also know this:

$sin^2(t) + cos^2(t) = 1\\\\\boxed{sin^2(t)} = 1 - cos^2(t)$

So plugging in both of those into our identity, we get:

$\frac{cos(t)}{sin(t)}\cdot sin^2(t) = cos(t)\cdot sin(t)$

Simplify the denominator on the LHS (Left Hand Side)

We get:

$cos(t) \cdot sin(t) = cos(t) \cdot sin(t)$

LHS = RHS

Therefore, identity is verified.

4 0

3 years ago

On a single roll of two number cubes, what is the probability of rolling doubles given that the sum is 6

dexar [7]

Answer:

1/6

Step-by-step explanation:

We can make a Punnett square to find number of favourable outcome

cube1

cube2 1 2 3 4 5 6

1 2 3 4 5 6 7

2 3 4 5 6 7 8

3 4 5 6 7 8 9

4 5 6 7 8 9 10

5 6 7 8 9 10 11

6 7 8 9 10 11 12

The probability of rolling doubles given that the sum is 6

<h3> favourable outcome / number of outcome</h3>

6 / 36

1 / 6

6 0

3 years ago

Read 2 more answers