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3 years ago

14

Fahrenheit femperature can be obtained from Celsius (centigrade) temperature by multiplying by 1and adding 32 degrees What Fahre

nheit temperature corresponds to a Celsius temperature of 85

1 answer:

ale4655 [162]3 years ago

6 0

Answer:

117

Step-by-step explanation:

85 times 1 plus 32 = 117

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Find an exponential function that passes through each pair of points.<br><br>(2,1.75) & (-2,28)

dusya [7]

Answer:

$f(x) = 7\, ((1/2)^{x})$ .

Step-by-step explanation:

An exponential function is typically in the form $f(x) = a\, (b^{x})$ , where $a$ and $b$ ( $b > 0$ ) are constants to be found.

In this question:

$f(2) = 1.75$ means that $a\, (b^{2}) = 1.75$ .

$f(-2) = 28$ means that $a\, (b^{-2}) = 28$ .

Divide one of the two equations by the other to eliminate $a$ and solve for $b$ .

The number of the right-hand side of the second equation is larger than that of the first equation. Hence, divide the second equation with the first:

$\displaystyle \frac{a\, (b^{-2})}{a\, (b^{2})} = \frac{28}{1.75}$ .

$\displaystyle b^{-4} = 16$ .

$b^{-1} = 2$ .

$\displaystyle b = \frac{1}{2}$ .

Substitute $b = (1/2)$ back into either equation (for example, the first equation) and solve for $a$ :

$a\, ((1/2)^{2}) = 1.75$ .

$a = 7$ .

Substitute $a = 7$ and $b = (1/2)$ into the other equation. That equation should also be satisfied.

Therefore, this function would be:

$f = 7\, ((1 / 2)^{x})$ .

8 0

2 years ago

There are a total of 56 students in the math club and the games club. The math club has 4 more students than the games club. Wri

Yuki888 [10]

Answer:

math has:30

game has:26

Step-by-step explanation:

math⇒x

game⇒y

x+y=56

x=y+4

so y+4+y=56 ⇒2y+4=56

⇒56-4 ⇒2y=52⇒y=52/2⇒26

and if y = 26 then x=30

5 0

3 years ago

Solve 3[-x + (2 x + 1)] = x - 1.<br> x = 2

Gekata [30.6K]

Answer:

x = -2

Step-by-step explanation:

$3[- x + (2x + 1)] = x - 1$

$= > 3[ - x + 2x + 1 ] = x - 1$

$= > 3[x + 1] = x - 1$

$= > 3x + 3 = x - 1$

$= > 3x - x = - 1 - 3$

$= > 2x = - 4$

$= > x = \frac{ - 4}{2} = - 2$

7 0

2 years ago

A. 10%<br> B. 21%<br> C.30%<br> D.34%<br> E.49%

Tems11 [23]

Answer:

34% see explanation below

Step-by-step explanation:

The total number who likes pizza is 73 and the total number of people surveyed is 215

So it'll just be 73/215 × 100 (for the percentage)

7 0

2 years ago

Read 2 more answers

PLEASE HELP ME THIS IS DUE TODAY AND I AM DEPRESSED ( uhm look at photo )

Anuta_ua [19.1K]

Answer:

C. 19

B. 47

C. 12

C. 10

C. -8

Step-by-step explanation:

for each equation you take the number given, input it as the value of the variable, and evaluate the equation

hopefully this helps :)

4 0

2 years ago