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
goblinko [34]
3 years ago
8

If x= 3, what is the value of 4x2 - 7?

Mathematics
2 answers:
hammer [34]3 years ago
4 0
The answer would be 29.

Explanation: First we substitute 3 into the equation: 4(3^2)-7. Next we find what 3^2 is. 3^2 or 3x3 is equal to 9. The equation is now 4x9-7. 4x9 is 36 and 36-7=29.

Hope this helped.
sveta [45]3 years ago
3 0

Answer:

D:29

Step-by-step explanation:

4(3) ^2 - 7 =

6^2 -7 =

36 - 7 = 29

hope this helped!

You might be interested in
Lucy wrote a pattern using the rule "Subtract 3." The first two numbers in her pattern
galben [10]

Answer:

I can't see the choices but some options are:

36 subtract 3 = 33 subtract 3 = 30 subtract 3 = 27 subtract 3 = 24 subtract 3 = 21 subtract 3 = 18, etc.

5 0
3 years ago
A category within biology that deals with the physical and chemical functions.
jeyben [28]
<span>The answer is a. Physiology. Physiology is a category within biology that deals with the chemical and physical functions. It studies the functions in living systems. Physiology studies the chemical and physical functions on different levels of biological organization, such as organisms, organ systems, organs, cells, and molecules.</span>
4 0
3 years ago
Read 2 more answers
The measure of one side of a square (s+3) inches long.which pair of expressions both represent the perimeter of this square??
ankoles [38]
Perimeter = 2w + 2l

Since its a square, the length and width are equal therefore:

2(s + 3) + 2(s + 3) = Perimeter

You can simplify this into a variety of ways:

1. 4(s + 3)
2. 2s + 6 + 2s + 6
3. 4s + 12
8 0
3 years ago
A certain forest covers an area of 4800 km^2 . Suppose that each year this area decreases by 5.25% . What will the area be after
9966 [12]

Answer:

the area after 6 years is  3,473 km^2

Step-by-step explanation:

The computation of the area after 6 years is as follows:

= Area × (1 - decreased percentage)^number of years

= 4,800 km^2 × (1 - 5.25%)^6

= 4,800 km^2 × 0.9475^6

= 3,473 km^2

Hence, the area after 6 years is  3,473 km^2

5 0
3 years ago
What is -12/11 = -3/?
solniwko [45]

Answer:

According to my calculations, the missing number is 11/4

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What is the sum of the first five terms in a geometric sequence with a1 = 6 and r=1/3
    5·2 answers
  • What is the percent increase in the surface area of the AAA battery to the AA battery? Round your answer to the nearest tenth of
    11·1 answer
  • Need help i dont get it <br> So please help me
    11·1 answer
  • A disc has a diameter of centimeters while a mini disc has a diameter of centimeters. Write the ratio of the mini disc diameter
    6·1 answer
  • Solve for x2:<br><br> y2 − y1 = m(x2 − x1)<br><br><br> this is literal equations btw
    14·2 answers
  • The pair of figures to the right are similar. The area of one figure is given. Find the area of the other figure to the nearest
    10·1 answer
  • Two different formulas of an oxygenated motor fuel are being tested to study their road octane numbers. The variance of road oct
    10·1 answer
  • I need help with these problems
    9·1 answer
  • URGENT !! Hi guys I really need help quickly, Can anybody please solve these and also write/type out each part of the equation t
    14·2 answers
  • What is the value of |PS|​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!