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4 years ago

What is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?

Mathematics

2 answers:

mojhsa [17]4 years ago

6 0

The percent would be 17%

Mumz [18]4 years ago

4 0

(120-100)/120
=20/120
=16.66666666
=17%

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the graph of y=e^tanx-2 crosses the x axis at one point in the interval [0,1]. What is the slope of the graph at this point? I g

Svetlanka [38]

Y = e^tanx - 2

To find at which point it crosses x axis we state that y= 0

e^tanx - 2 = 0
e^tanx = 2
tanx = ln 2
tanx = 0.69314
x = 0.6061

to find slope at that point first we need to find first derivative of funtion y.

y' = (e^tanx)*1/cos^2(x)

now we express x = 0.6061 in y' and we get:
y' = k = 2,9599

3 0

3 years ago

What is the slope of the graph?

VMariaS [17]

Given:

Given that an aquarium is being filled with water.

The given graph shows the height of the water over time as the aquarium is being filled.

We need to determine the slope of the graph.

Slope:

The slope of the given graph can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Since, the slope is same for all the points on the straight line, then let us consider the points (2,5) and (4,10)

Substituting these points in the above formula, we get;

$m=\frac{10-5}{4-2}$

Simplifying, we get;

$m=\frac{5}{2}$

$m=2.5$

Thus, the slope of the given graph is 2.5

8 0

3 years ago

What is the perimeter of triangle PQR whit vertices p(-2,-3) Q(7,-3) and R(-2,-3) in the coordinate plane

rosijanka [135]

PQR with vertices P(–2, 9), Q(7, –3), and R(–2, –3)

first distance P(–2, 9), Q(7, –3)

The distance (d) between two points is given by the following formula:

Answer= 15

3 0

3 years ago

Read 2 more answers

The cone in the diagram has the same height and base area as the prism. What is the ratio of the volume of the come to the volum

Nimfa-mama [501]

Answer:

$\large\boxed{\dfrac{V_{cone}}{V_{prism}}=\dfrac{1}{3}}$

Step-by-step explanation:

$\text{The formula of a volume of a cone:}\ V_{cone}=\dfrac{1}{3}B_cH_c\\\\B_c-base\ area\ of\ a\ cone\\H_c-height\ of\ a\ cone\\\\\text{The formula of a volume of a prism:}\ V_{prism}=B_pH_p\\\\B_p-base\ area\ of\ a\ prism\\H_p-height\ of\ a\ prism\\\\\text{The cone and the prism have the same base area and height.}\\\text{Therefore}\\\\V_{cone}=\dfrac{1}{3}BH\ \text{and}\ V_{prism}=BH\\\\\text{The ratio of the volume of the cone to the volume of the prism:}$

$\dfrac{V_{cone}}{V_{prism}}=\dfrac{\frac{1}{3}BH}{BH}=\dfrac{1}{3}$

5 0

3 years ago

Find the whole explain your message 30% of what number is 15

Rashid [163]

30/100 = 15/x

cross multiply
1500 = 30x

1500/30 = 50

5 0

3 years ago