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
bija089 [108]
3 years ago
5

If s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to ? –439 –141 153 443

Mathematics
1 answer:
andrew11 [14]3 years ago
7 0

Answer:

The correct option is -439

Step-by-step explanation:

We have given that s(x) = 2 – x2 and t(x) = 3x. We have to find the equivalent value.

s(x) = 2 – x2

t(x) = 3x

(s o  t)(x)=s(t(x))

s(t(x)) = 2-(3x)^2 = 2-9x^2

So, now putting the value of s of t(x) as (-7) we will get the value as:

(s o t)(-7) = 2-9(-7)^2 = 2 - 9(49)

(s o t)(-7) = 2-441

(s o t)(-7) = -439

Thus the correct answer is option  A...

You might be interested in
Which of the following comparisons is FALSE?
dybincka [34]

Answer:

A

Step-by-step explanation:

Let's check each one-by-one.

a.

we know 3.79 liters is 1 gallon, so 4 liters IS NOT LESS THAN 1 gallon

THis is false.

b.

We know 1 feet is 0.30 meters, so definitely 1 foot is less than 1 meter.

This is true.

c.

we know around 28.35 grams is 1 ounce, so definitely 25 grams is less than 1 ounce.

THis is true.

d.

We know 1 km is approximately 0.62 miles so 10 km would be around 0.62*10 = 6.2 miles

So definitely 9 miles IS GREATER than 10 km.

THis is true.

So answer choice A is false, only.

4 0
3 years ago
Which graph best represents the function f(x)=2x ?
yan [13]

Answer:

B

Step-by-step explanation:

The best - well, only way- is to check a few points.

Namely -1 (unless your eyesight is really poor!), 0, 1, 2, and 3.

f(x) = 2^x\\f(-1) = 2^-^1 = \frac12\\f(0) =2^0 =1\\f(1)= 2^1=2\\f(2)=2^2=4\\f(3)=2^3= 8

Now you can mark all these points in each graph (well, you could if they were on paper and not on a screen) and see which one of the lines passes through all of them. Spoiler alert, it's the B graph.

A represents 2(2^x) = 2^{x+1}, B is the one you want, C is \frac{2^x}2 = 2^{x-1} and D looks like 4^x = 2^2^x

3 0
2 years ago
Express 0.01620.01620, point, 0162 as a fraction.
just olya [345]
162/10000 is the answer to this question

8 0
3 years ago
What's the Y-intercept and the slope of the following equation x–5=y
forsale [732]

Answer:

slope is 1 and y-intercept is (0,-5)

Step-by-step explanation:

3 0
3 years ago
What value, written as a decimal, should lena use as the common ratio? 1.0 1.5 2.5 2.0
mariarad [96]

The Lena has no common ratio for the sequence 1.0 1.5 2.5 2.0

According to the question,

1.0  1.5  2.5  2.0

a = 1.0

r = 1.5/1 = 1.5

r = 2.5/1.5 = 1.6667

r = 2/2.5 = 0.8

common ratio is different, so given sequence is not geometric sequence.

Hence,  the Lena has no common ratio for the sequence 1.0 1.5 2.5 2.0.

Learn more about common ratio here

brainly.com/question/17137226

#SPJ4

6 0
2 years ago
Other questions:
  • The perimeter of the rectangle is 20 cm. One side is 6 cm long. What is the length of the missing side
    9·2 answers
  • If ABCD is a rhombus with no right angles, then ___________________.
    6·2 answers
  • Simplify 20+4(3)÷(-8)
    6·2 answers
  • Please help me !!!!!
    15·2 answers
  • (2.5 x 10^-6) ÷ (5 x 10^-3)
    11·1 answer
  • Y = 4x - 2<br> y = x + 3
    5·1 answer
  • Using division to find ratios that are equivalent to 40:28
    8·1 answer
  • Help please!!!! 50 points!!!!
    7·1 answer
  • What is total surface area of the rectangular prism shown 10m 10m 8m​
    6·2 answers
  • Solve for x: -2x+14=20
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!