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inysia [295]
4 years ago
12

The temperature in degrees Fahrenheit can be estimated by counting the number of times a cricket chirps in one minute. If a cric

ket chirps 164 times in one minute, use this formula to find the approximate temperature outside.
c÷4+37
A. 87 °F
B. 78 °F
C. 41 °F
Mathematics
1 answer:
DedPeter [7]4 years ago
3 0
<span>If temperature can be estimated by counting cricket chirps and applying it to a given formula, a cricket that chirps 164 times in one minute indicates that it is approximately 78 degrees Fahrenheit (B).</span>
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Suppose the value R(d) of d dollars in euros is given by R(d)-d The cost P(n) in dollars to purchase and ship n purses is given
S_A_V [24]

<u>Corrected Question</u>

Suppose the value R(d) of d dollars in euros is given by R(d)=\dfrac67 d. The cost in dollars to purchase and ship n purses is given by P(n)=66n+23. Write a formula for the cost, Q(n) in euros to purchase and ship n purses.

Answer:

Q(n)=\dfrac67(66n+23)

Step-by-step explanation:

The value R(d) of d dollars in euros is given by R(d)=\dfrac67 d

Therefore:

R(1)=\dfrac67

T$hat is, 1  dollars =\dfrac67$ euros

The cost P(n) in dollars to purchase and ship n purses is given by:

P(n) = 66n+23.

Therefore, the cost, Q(n) in euros to purchase and ship n purses

=\dfrac67 \cdot P(n)\\Q(n)=\dfrac67(66n+23)

8 0
3 years ago
The.......... is an appropriate unit to measure the capacity of a hand sanitizer bottle
Yuri [45]
Liters can probably be the unit to measure the capacity of a hand sanitizer bottle
4 0
3 years ago
Read 2 more answers
Y = 2x – 15<br> y = 5x<br> Can anyone tell me the steps how to solve this and the answer
Brilliant_brown [7]
Use substitution
Plug in 5x for y
5x = 2x - 15
Subtract 2x
3x = -15
Divide by 3
x = -5, y = -25
Solution: (-5, -25)
5 0
3 years ago
Find the directional derivative of f(x,y,z)=z3−x2yf(x,y,z)=z3−x2y at the point (−5,5,2)(−5,5,2) in the direction of the vector v
olga_2 [115]

We are given

f=z^3 -x^2y

Firstly, we can find gradient

so, we will find partial derivatives

f_x=0 -2xy

f_x=-2xy

f_y=0 -x^2

f_y=-x^2

f_z=3z^2

now, we can plug point (-5,5,2)

f_x=-2*-5*5=50

f_y=-(-5)^2=-25

f_z=3(2)^2=12

so, gradient will be

gradf=(50,-25,12)

now, we are given that

it is in direction of v=⟨−3,2,−4⟩

so, we will find it's unit vector

|v|=\sqrt{(-3)^2+(2)^2+(-4)^2}

|v|=\sqrt{29}

now, we can find unit vector

v'=(\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

now, we can find dot product to find direction of the vector

dir=(gradf) \cdot (v')

now, we can plug values

dir=(50,-25,12) \cdot (\frac{-3}{\sqrt{29} } , \frac{2}{\sqrt{29} } , \frac{-4}{\sqrt{29} })

dir=(-\frac{150}{\sqrt{29} } - \frac{50}{\sqrt{29} } - \frac{48}{\sqrt{29} })

dir=-\frac{248\sqrt{29}}{29}.............Answer



7 0
4 years ago
Read 2 more answers
PLZ HELP ASAP 22 POINTS WILL MARK BRAINLIEST
Tema [17]

Answer:

That there are 32 students in Mr. Hassan's class

OR

12 people scored 8 marks on the test.

Step-by-step explanation:

Since the purple lines coordinate with how many people are in the class, you can use them to count exactly how many people there are, you can also use them to see how many people got a certain score.

Hope this helps! : )

8 0
4 years ago
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