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lisabon 2012 [21]
2 years ago
8

Please help me on this its the last question i will mark brainliest

Mathematics
2 answers:
notsponge [240]2 years ago
7 0
W=29 because when you add the two numbers you have you will get 29 and if you subtract 29-12 you will get 17
Free_Kalibri [48]2 years ago
6 0

Answer: w= 29

Step-by-step explanation:

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What is the value of z?
weqwewe [10]

Answer:

z = 30.45 feet

Step-by-step explanation:

The volume (V) of a triangular prism is calculated as

V = area of triangular end (A) × length

Here V = 913.5 and length = 15, thus

A × 15 = 913.5 ( divide both sides by 15 )

A = 60.9 ft²

The area of the triangle = \frac{1}{2} bh ( b is the base and h the height ), thus

\frac{1}{2} × 4 × z = 60.9

2z = 60.9 ( divide both sides by 2 )

z = 30.45

3 0
3 years ago
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I need the answer written as a base and exponent not decimal. please and thanks
Dmitry [639]
I think the answer would be -8^4
4 0
3 years ago
The equation C = 5 9 F − 160 9 gives the relation between temperature readings in Celsius and Fahrenheit.
Pavel [41]

Step-by-step explanation:

The question is wrong. The correct equation is :

C=\frac{5}{9}F-\frac{160}{9}

We know that the equation gives the relation  between temperature readings in Celsius and Fahrenheit.

Therefore, giving that we know the value in Fahrenheit ''F'' we can find the reading in Celsius ''C''. This define a function C(F) that depends of the variable ''F''.

So for the incise (a) we answer Yes, C is a function of F.

For (b) we need to find the mathematical domain of this function. Giving that we haven't got any mathematical restriction, the mathematical domain of the function are all real numbers.

Dom (C) = ( - ∞ , + ∞)

For (c) we know that the water in liquid state and at normal atmospheric pressure exists between 0 and 100 Celsius.

Therefore the range will be

Rang (C) = (0,100)

Now, we need to find the domain for this range. We do this by equaliting and finding the value for the variable ''F'' :

For C = 0 :

0=\frac{5}{9}F-\frac{160}{9} ⇒ F=32

And for C = 100 :

100=\frac{5}{9}F-\frac{160}{9} ⇒ F=212

Therefore, the domain as relating temperatures of water in its liquid state is

Dom (C) = (32,212)

For (d) we only need to replace in the equation by F=71 and find the value of C ⇒

C=\frac{5}{9}F-\frac{160}{9} ⇒

C=(\frac{5}{9})(71)-\frac{160}{9}

C=\frac{65}{3} ≅ 21.67

C(71) = 21.67 °C

4 0
2 years ago
Write an equation in<br> y = mx + b form for<br> the line graphed.
Dimas [21]

Answer:

y=2x-5

explanation

m is gradient so rise over run and b is the y intercept which is -5

7 0
2 years ago
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How many hours of digging does it take for the depth of the hole to reach -28 feet
kirill [66]
Digging -28 would take 16 hours because 14 times 2 equals 28 and 8 times 2 equals 16 so answer is 16
6 0
3 years ago
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