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Anarel [89]
3 years ago
8

2x - 3(5 - x) = 35 pls solve

Mathematics
2 answers:
inna [77]3 years ago
8 0

Answer:

x=10

Step-by-step explanation:

Nana76 [90]3 years ago
5 0

Answer:

2x-15+3x=35

2x+3x=35+15

5x=50

x=50/5

x=10

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A line has a slope of -3 and passes through the point (5,4)
Pachacha [2.7K]
Y-intercept form is y=-3x+19, I’m not sure what you question is
5 0
2 years ago
Two counters are selected at random from a bag containing 5 red counters and 3 blue counters.
azamat

Answer:

1.4

Step-by-step explanation:

Probability of selecting a red counter :

Number of red counter / total number of counters

5 / (5 + 3) = 5 /8 = 0.625

Probability of selecting a blue counter = 0.375

Let number of red counters :

0, 1 or 2

0 red counters :

Expected value = x * p(x)

0 + (0.625*1) + (0.390625 * 2)

0 + 0.625 + 0.78125 = 1.40625

Expected number of red counters = 1.4

6 0
3 years ago
Which expression means five times the sum of b and two?
mel-nik [20]

Answer:

A. 5(b+2)

Step-by-step explanation:

Five times the sum of b and two

The sum of "b" and "2" means

b + 2

Five times the sum means,

5(b+2)

6 0
3 years ago
How are rational functions similar to linear, quadratic, or exponential functions? How are they different? When are these simila
jeyben [28]

Answer:

See explanation below for further details.

Step-by-step explanation:

A rational consist of two real numbers such that:

\frac{a}{b} =c

If c is a polynomial with a certain grade, then, both the numerator and the denominator must be also polynomials and the grade of the numerator must be greater than denominator.

If c is linear function, that is, a first order polynomial, then a must be a (n+1)-th polynomial and b must be a n-th polynomial.

Example:

If a = x^{2} and b = x, then:

c = \frac{x^{2}}{x}

c = x

If c is a quadratic function, that is, a second order polynomial, then a must be a (n+1)-th polynomial and b must be a n-th polynomial.

Example

If a = 3\cdot x^{3} and b = x, then:

c = \frac{3\cdot x^{3}}{x}

c = 3\cdot x^{2}

But if c is an exponential, both the numerator and the denominator must be therefore exponential function and grade of each exponential function must different to the other.

Example

If a = 10^{2x} and b = 3\cdot 10^x, then:

c = \frac{10^{2\cdot x}}{3\cdot 10^{x}}

c = \frac{1}{3}\cdot 10^{2\cdot x -x}

c = \frac{1}{3}\cdot 10^x

Otherwise, c would be equal to a constant function, that is, a polynomial with a grade 0.

If a = 5\cdot e^{x} and b = -3\cdot e^{x}, then:

Example

c = \frac{5\cdot e^{x}}{-3\cdot e^{x}}

c = -\frac{5}{3}

It is worth to add that exponential functions can be a linear combination of single exponential function, similar to polynomials.

Example

5\cdot a^2\cdot x -9

7 0
3 years ago
A rock is dropped from the edge of a 550 foot cliff. It's position above the ground at any given time (t) is modeled by the func
Gemiola [76]
S(5) = -16*(5)*2 + 550 = 390

you just replace t with 5
3 0
3 years ago
Read 2 more answers
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