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Vikki [24]
3 years ago
11

25,000 bricks were used to build the new library. The total weight of the bricks was 30,000 pounds. What is the weight of each b

rick? Which let statement(s) would you use?
A. Let w= the weight of one brick.
B. Let w= the total weight of the bricks.
C. Let w= the total number of bricks.
Mathematics
1 answer:
Otrada [13]3 years ago
7 0
<span>A. Let w= the weight of one brick.</span>
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These are all related to geometry and I need help!
nydimaria [60]

SOH-CAH-TOA

sin=opp/hyp

cos=adj/hyp

tan=opp/adj

1. Sin c=opp/hyp           2. tan=opp/adj                  3. sin=opp/hyp

  sin c=8/17                        tan38°=x/16                        sin38=18/x

                                                                                   x=18/sin38; x=29.236846

4 0
3 years ago
Pls help with this!!
ANEK [815]
A)
Let X be the food expenditure of a family.
Let the population mean of an expenditure of a family be.
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The proportion families spend more than $30 but less than $490 per month on food is,
7 0
3 years ago
50 POINTS What are the values of a1 and r of the geometric series? 2 – 2 + 2 – 2 + 2
torisob [31]

Answer:

a1=2 and r=-1

Explanation:

"A geometric series is a series with a constant ratio between successive terms".

Here, we can observe that the first term 'a' is '2'.

And the common ratio 'r' =

Therefore, the first term 'a' is 2 and common ratio 'r' is '-1'.

8 0
3 years ago
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Find the cosine of T.
Ronch [10]

Answer:

c o s t = x \displaystyle P: \text{cos}t=x P:cost=x.

Step-by-step explanation:

The cosine of t is equal to the x-coordinate of point P

6 0
3 years ago
1. Evaluate the function f(x)=3x-1 using the domain of -2, 0, 3, and 5. Results are to be shown in a table.
IceJOKER [234]

Answer:

See explanation

Step-by-step explanation:

You are given the function f(x)=3x-1

The domain of the function are all possible values of variable x, so you can find f(x) for x=-2, 0, 3, 5:

f(-2)=3\cdot (-2)-1=-6-1=-7\\ \\f(0)=3\cdot 0-1=0-1=-1\\ \\f(3)=3\cdot 3-1=9-1=8\\ \\f(5)=3\cdot 5-1=15-1=14

The table is

\begin{array}{cc}x&f(x)\\-2&-7\\0&-1\\3&8\\5&14\end{array}

The inverse function f^{-1}(x) has the domain which is the range of the function f(x) (all possible values of f(x)), so the domain of inverse function is {-7,-1,8,14}

6 0
3 years ago
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