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2 years ago

14

There are thirty-two pets at the pet shop where Donna works. There are three times as many mammals as reptiles in the store. How

many reptiles are there at the pet store?

1 answer:

adelina 88 [10]2 years ago

4 0

I’m not sure if this 100% correct, but it should be 8

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Factor the algebraic expression below in terms of a single trigonometric function. sin 2x + sin x - 2

Pie

Answer:

The factored form is (sin x +2)(sin x-1)

Step-by-step explanation:

We have been given the trigonometric function $\sin^2 x +\sinx-2$

We can factor this by AC method. In AC method we multiply the term a and c and then write the middle term b in such a way that the sum/difference is equal to the product 'ac'

Using the method, we can write sinx as 2sinx -sinx

$\sin^2 x +2\sinx-\sin x-2$

Now, we group the first two terms and the last two terms

$(\sin^2 x +2\sinx)+(-\sin x-2)$

Now, we take GCF from each group

$\sin x(\sin x +2)-1(\sin x+2)$

Factor out (sinx+2)

$(\sin x +2)(\sin x-1)$

Therefore, the factored form is (sin x +2)(sin x-1)

7 0

3 years ago

Read 2 more answers

calvin and susie baked some cookies in the ratio of 3 : 7. calvin baked 60 fewer cookies than susie. how many cookies did they b

kow [346]

Answer:

Step-by-step explanation:

Ratio of cakes baked by Calvin and Susie = 3 : 7

Cakes baked by Calvin = 3x

Cakes baked by Susie = 7x

Cakes baked by Calvin = Cakes baked by Susie - 60

3x = 7x - 60

7x - 60 = 3x

7x = 3x + 60

7x - 3x = 60

4x = 60

x = 60/4

x = 15

Cakes baked by Calvin = 3*15 = 45

Cakes baked by Susie = 7 *15 = 105

Total cakes baked = 45 + 105 = 150

They both baked 150 cakes altogether.

8 0

1 year ago

The cost of producing n necklaces is p(n) = 15n + 60. The necklaces cost $30, which can be represented by c(n) = 30n. For how ma

zysi [14]

Answer:

n=4

Step-by-step explanation:

5 0

2 years ago

Can someone please help me with this 7+9x(3+8)=

Semenov [28]

Answer:

99x + 7

hope this helps:)

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2 years ago

The Zamboni can resurface 1200 square feet per minute. How many minutes will it take the Zamboni to resurface the entire rink if

Alekssandra [29.7K]

Answer:

b

Step-by-step explanation:

sorry if wrong

7 0

2 years ago