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Sonja [21]
3 years ago
5

Seven less than twice the number

Mathematics
1 answer:
Nostrana [21]3 years ago
7 0

Answer:

2n-7

Step-by-step explanation:

Let the number be n.

Twice the number: 2n.

Seven less than twice the number: 2n - 7.

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Calculate the values of the Expressions below 3 * 8 divided by 2 squared + 1​
mixer [17]

Answer:

<h2>24/5</h2>

Step-by-step explanation:

\frac{3  \times8}{2^2+1}\\\\\mathrm{Multiply\:the\:numbers:}\:3\times \:8=24\\\\=\frac{24}{2^2+1}\\\\2^2+1=5\\\\=\frac{24}{5}

8 0
3 years ago
Easy 10 points please help
larisa [96]

Answer:

8

Step-by-step explanation:

6 0
3 years ago
What is 35% of 35!!
mixas84 [53]
35% of 35 would be 12.25
3 0
3 years ago
Read 2 more answers
The tangent of the graph of y=<img src="https://tex.z-dn.net/?f=e%5E%7Bax%7D" id="TexFormula1" title="e^{ax}" alt="e^{ax}" align
bearhunter [10]

a) The tangent to y=e^{ax} at x=p has slope

y' = ae^{ax} \implies y'(p) = ae^{ap}

and y=e^{ap} at this point. It passes through the origin, so its equation is

y - 0 = ae^{ap} (x - 0) \implies y = ae^{ap} x

It also passes through the point (p,e^{ap}) on the curve, so

y - e^{ap} = ae^{ap} (x - p) \implies y = e^{ap} + ae^{ap} x - ape^{ap}

By substitution,

ae^{ap} x = e^{ap} + ae^{ap} x - ape^{ap} \implies e^{ap} = ape^{ap} \implies ap=1 \\\\ \implies \boxed{p=\dfrac1a}

b) The normal to y=e^{ax} at x=2p has slope

-\dfrac1{y'(2p)} = -\dfrac1{ae^{2ap}} = -1 \implies ae^{2ap} = 1

It follows that

ae^{2ap} = ae^2 = 1 \implies \boxed{a = \dfrac1{e^2} \text{ and } p = e^2}

c) The tangent line equation is then

y = \dfrac1{e^2} e^1 x \implies \boxed{y = \dfrac xe}

7 0
2 years ago
Drew’s kite is flying above a field at the end of a 65m string. if the angle of elevation to the kite measures 70 degrees, how h
Goryan [66]
Let h be the height 

then,

sin(70) = h/65

or, h = 61.08
h= 61m
6 0
3 years ago
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