1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
2 years ago
6

Let f(x) = 2x - 3. If f(x) = 15, what is x?

Mathematics
2 answers:
kirill [66]2 years ago
7 0

Answer:

In explanation

Step-by-step explanation:

Using f(x), we can work backwards to find x:

15 = 2x-3

18=2x

x=9

iragen [17]2 years ago
6 0

Answer:

9=x

Step-by-step explanation:

You might be interested in
How do you simplify expressions with rational exponents
Rainbow [258]

Answer:

Step-by-step explanation:

Simplify expression with rational exponents can look like a huge thing when you first see them with those fractions sitting up there in the exponent but let's remember our properties for dealing with exponents. We can apply those with fractions as well.

Examples

(a)   (p^4)^{\dfrac{3}{2}}

From above, we have a power to a power, so, we can think of multiplying the exponents.

i.e.

(p^{^ {\dfrac{4}{1}}})^{\dfrac{3}{2}}

(p^{^ {\dfrac{12}{2}}})

Let's recall that when we are dealing with exponents that are fractions, we can simplify them just like normal fractions.

SO;

(p^{^ {\dfrac{12}{2}}})

= (p^{ 6})

Let's take a look at another example

\Bigg (27x^{^\Big{6}} \Bigg) ^{{\dfrac{5}{3}}}

Here, we apply the \dfrac{5}{3} to both 27 and x^6

= \Bigg (27^{{\dfrac{5}{3}}} \times x^\Big{\dfrac{6}{1}\times {{\dfrac{5}{3}}} }\Bigg)

= \Bigg (27^{{\dfrac{5}{3}}} \times x^\Big{\dfrac{2}{1}\times {{\dfrac{5}{1}}} }\Bigg)

Let us recall that in the rational exponent, the denominator is the root and the numerator is the exponent of such a particular number.

∴

= \Bigg (\sqrt[3]{27}^{5} \times x^{10} }\Bigg)

= \Bigg (3^{5} \times x^{10} }\Bigg)

= 249x^{10}

8 0
2 years ago
Formulas A=bh/2 A=bh and I have 6in 4in 6in 10in and I have to find the area
Naddik [55]

Answer:

Lots of "ifs" here.

A=bh/2 is the formula for the area of a triangle.

A=bh is the formula for the area of a rectangle or a parallelogram.

If the 6 & 4 area the base & height of a rectangle, then (6)(4) = 24 in^2

If the 6 & 10 are the base and height of a triangle, then 1/2(6)(10) = 30 in^2

Step-by-step explanation:

6 0
3 years ago
The sum of all the ages of Dylan and Renee is 57 years . 9 yrs ago , Dylans age was 2 times Renee's age. How old is Dylan now?​
Ugo [173]

Answer:

Step-by-step explanation:

let present age of

Dylan=x

Renee=y

x+y=57

9 years ago

x-9=2(y-9)=2y-18

x=2y-18+9=2y-9

so  2y-9+y=57

3y=57+9=66

y=66/3=22

x+22=57

x=57-22=35

Dylan's present age=35 years

3 0
2 years ago
What is the equation of the line in slope-intercept form? Line on a coordinate plane. The line runs through points begin ordered
ki77a [65]

Answer:

5 + 0 = 3 x 0

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
on her last 3 terms in algebra, Myka had scored a 83,87, and a 92. What score does she need to get on her text test if she wants
Ugo [173]
At least a 98 or it won’t be above a 90
8 0
2 years ago
Other questions:
  • A newspaper is surveying voters from Idaho regarding voting issues. Which is the most appropriate population to sample for this
    15·1 answer
  • What words don’t describe? Super easy question!!!❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
    15·1 answer
  • You have 15 pennies in your pocket. Of those pennies, 3 are Canadian. Suppose you pick a penny out of your pocket at random. Fin
    13·1 answer
  • Which of the following expressions has a coefficient of 10 and a constant of 5
    8·1 answer
  • Solve the inequality.<br><br> 2(4 + 2x) ≥ 5x + 5?
    13·2 answers
  • Pls help! three arithmetic sequences are given below.
    5·1 answer
  • A music store has sold 3/5 of their hip-hop CDs, but 10 were returned.Now the store has 62 Hip-Hop CDs,How many Hip-Hop CDs did
    11·1 answer
  • Please help, giving brainliest too whoever answers first
    12·1 answer
  • Solve for x:<br> 2x + y = -2<br> 4x + y = -8
    9·2 answers
  • A package of 6 pairs of insulated socks cost $85.20 what is the unit price of thepairs of socks
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!