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3 years ago

Help me with my test pls

Mathematics

1 answer:

JulijaS [17]3 years ago

8 0

Answer:

The answer will be 40!!!!!!!!!!

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2. Ronnie buys 18 identical t-shirts costing £36. How much would 1 t-shirt cost? <br>

fgiga [73]

36/18=2
Each shirt is £2

4 0

3 years ago

Read 2 more answers

Find the tangent line equation of the curve at the given point. Y=arcsin(7x) at the point where x=sqrt2/14

Mumz [18]

Answer:

$Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

Step-by-step explanation:

The equation of the curve is

$Y = sin^{-1}(7x)$

To find the equation of tangent we need to differentiate this equation w.r.t x

So, differentiating we get

$Y'=\frac{7}{\sqrt{1-49x^2} }$

This would give the slope of the tangent line at any given point of which x coordinate is known. In the present case it is $x = \sqrt{\frac{1}{7} }$

Then slope would accordingly be

$Y'=\frac{7}{\sqrt{1-49/49} }$

= ∞

For, $x = \sqrt{\frac{1}{7} }$ , $Y = sin^{-1}(7/7)= \pi/2$

Equation of tangent line, in the point slope form, would be $Y-\frac{\pi}{2} =\frac{\pi}{2} (x+\sqrt{\frac{1}{7}})$

4 0

3 years ago

What is the answer to the fraction 2 ⅓+⅚=

kramer

Answer:

Step-by-step explanation:

$2 \frac {1}{3}+\frac{5}{6}\\=\frac{7}{3}+\frac{5}{6}\\=\frac{14+5}{6}\\=\frac{19}{6}\\=3 \frac{1}{6}$

8 0

3 years ago

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Parallelogram abcd is similar to parallelogram efgh. angle a is congruent to the measure of angle ___.

Vesna [10]

Angle A is congruent to Angle E

8 0

3 years ago

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What is the value of the rate of change when we put a glass of water at room temperature in the freezer for 15 minutes, what is

alexgriva [62]

Answer:

Step-by-step explanation:

I do not understand your question very well but I think that the state of the glass of the water would be liquid and solid at the same time since the water would not freeze 100% and would be with small pieces of solid and some parts liquid, in terms of temperature, I think that at 5 minutes it would be 5 ° C and at 10 it would be 3-4 ° C the longer it is in the freezer the less its temperature will be

(All of that is my point of view)

Average temperature 30 °

So :

30 ÷ 15 = 2 °

30 ÷ 10 = 3 °

30 ÷ 5 = 6 °

3 0

3 years ago