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3 years ago

Based on the data provided, what is the expected cost of repairs over two years if each repair costs $60?

Mathematics

2 answers:

irina [24]3 years ago

6 0

How many repairs a year?

mart [117]3 years ago

6 0

The answer is <span>236.40 if you need anymore help let me know and if you can mark brainliest that will help me alot</span>

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If 20% of the students in your class like McDonald's, how many students are in your class if 4 students like McDonald's?

elena55 [62]

Answer: it is 20 students

5 0

3 years ago

Read 2 more answers

What is 5-5x+4x equal ?

Arisa [49]

Answer:

-x+5

Step-by-step explanation:

5-5x+4x

= 5+(-5x)+4x

combine like terms:

5+(-5x)+4x

(-5x+4x)+(5)

= -x+5

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3 years ago

A rectangle with an area of 4/7 m2 is dilated by a factor of 7. What is the area of the dilated rectangle

tatyana61 [14]

according to the picture we have:

x.y=4.7

(7)x(7)y=49xy=(49)(4.7)=230.3

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4 years ago

Suppose that the Celsius temperature at the point (x, y) in the xy-plane is T(x, y) = x sin 2y and that distance in the xy-plane

liraira [26]

Missing information:

How fast is the temperature experienced by the particle changing in degrees Celsius per meter at the point

$P = (\frac{1}{2}, \frac{\sqrt 3}{2})$

Answer:

$Rate = 0.935042^\circ /cm$

Step-by-step explanation:

Given

$P = (\frac{1}{2}, \frac{\sqrt 3}{2})$

$T(x,y) =x\sin2y$

$r = 1m$

$v = 2m/s$

Express the given point P as a unit tangent vector:

$P = (\frac{1}{2}, \frac{\sqrt 3}{2})$

$u = \frac{\sqrt 3}{2}i - \frac{1}{2}j$

Next, find the gradient of P and T using: $\triangle T = \nabla T * u$

Where

$\nabla T|_{(\frac{1}{2}, \frac{\sqrt 3}{2})} = (sin \sqrt 3)i + (cos \sqrt 3)j$

So: the gradient becomes:

$\triangle T = \nabla T * u$

$\triangle T = [(sin \sqrt 3)i + (cos \sqrt 3)j] * [\frac{\sqrt 3}{2}i - \frac{1}{2}j]$

By vector multiplication, we have:

$\triangle T = (sin \sqrt 3)* \frac{\sqrt 3}{2} - (cos \sqrt 3) \frac{1}{2}$

$\triangle T = 0.9870 * 0.8660 - (-0.1606 * 0.5)$

$\triangle T = 0.9870 * 0.8660 +0.1606 * 0.5$

$\triangle T = 0.935042$

Hence, the rate is:

$Rate = \triangle T = 0.935042^\circ /cm$

3 0

3 years ago

Write an equation for the description <br><br> a number x increased by 16 is 118.

noname [10]

Answer:

x +16 = 118

Step-by-step explanation:

A number(unknown ) = x

Increased = +

Merge all together you have

$x + 16 = 118$

Tip ; If you solve the equation you will get 102 as an answer. 102 +16 =118 .

SO the equation is correct .☻

6 0

3 years ago