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3 years ago

Second version to my other question sry ,':>

Mathematics

2 answers:

IceJOKER [234]3 years ago

8 0

Answer: D

Step-by-step explanation:

nadya68 [22]3 years ago

7 0

Answer: D

Step-by-step explanation:

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Pls be right will give brainliest

fiasKO [112]

Answer: B

Step-by-step explanation:

3 0

3 years ago

The height of a tree was 12 feet. after a year, the tree's height increased 25%. what is the height of the tree after a year

g100num [7]

15ft because 12x.25=3 so 3ft is 25% of the 12ft, add the 3+12=15

6 0

3 years ago

Rewrite each of the following statements in the form "∀ _____ x, _____." (a) All dinosaurs are extinct. ∀ x, . (b) Every real nu

jasenka [17]

Answer:

See below

Step-by-step explanation:

Essentially, we have to replace "quantifier words" like "All", "Every" by the universal quantifier ∀.

a) ∀ dinosaur x, x is extinct.

b) ∀ real number x, x is positive, negative, or zero.

c) ∀ irrational number x, x is not an integer.

d) ∀ logician x, x is not lazy.

e) ∀ integer x, x²≠ 2,147,581,953.

f) ∀ real number x, x²≠ -1.

In a) and b) we replace the words without major changes. In the other statements, we modify the statement using negation. For example, "No irrational numbers are integers." is equivalent to "Every irrational number is not integer".

8 0

4 years ago

What is the trigonometric derivative of Y=2sinx-tanx

Alchen [17]

$\bf y=2sin(x)-tan(x)\implies \cfrac{dy}{dx}=2cos(x)-sec^2(x)$

7 0

3 years ago

The differential equation y′′=0y′′=0 has one of the following two parameter families as its general solution: yyyy=C1ex+C2e−x=C1

elena-14-01-66 [18.8K]

Answer:

$y(x)=6+9x$

Step-by-step explanation:

Given differential equation, $y''=0$

Characteristic equation is given by $m^2=0$

$\Rightarrow m=0,0$ .

Differential equation have repeated roots and solution of differential equation is $y(x)=C_1+C_2x$ .............................(1)

Initial conditions are $y(0)=6,y'(0)=9$

Plugging first condition in equation (1),

$6=C_1+C_2(0)$

$C_1=6$

Equation (1) becomes

$y(x)=6+C_2x$ ............................(2)

differentiate equation (2) with respect to 'x',

$y'(x)=C_2$

Plugging second condition,

$C_2=9$

Hence, $y(x)=6+9x$

3 0

3 years ago