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
Rudik [331]
4 years ago
6

Express 4x^2-25 as a product of two binomials.

Mathematics
2 answers:
Ede4ka [16]4 years ago
8 0
4x^2-25=(2x)^2-5^2=(2x-5)(2x+5)
Andrei [34K]4 years ago
5 0

4x^2-25= (2x)^2-5^2=(2x-5)(2x+5)

Used: a^2-b^2=(a+b)(a-b)

You might be interested in
I don’t know how to figure out the ratio of the areas. The area for HGEF is 60.5 (121/2) and the area for JKLM is 378.125 (3025/
natima [27]

Answer:

25 : 4

Step-by-step explanation:

Given 2 similar figures with ratio of sides = a : b , then

ratio of area = a² : b²

For the given figures the ratio of corresponding sides is

JK : EF = 20 : 8 = 5 : 2 , thus

ratio of areas = 5² : 2² = 25 : 4

3 0
3 years ago
Draw a function of dy/dx for the graphical below (image). Please help!
fenix001 [56]

Step-by-step explanation:

Remember that

\frac{dy}{dx}

is the gradient or slope function.

So we need to analyze the slope of each graph over given time.l and how it changes.

For the 1st graph, we have a linear function.

Remember the special properties for all linear functions:

The slope at any two points on the line is the same.

So this means our slope here must be constant.

And since our slope is negative, our dy/dx, function must be a constant function that is negative. So

The answer for the first graph is draw a horizontal line underneath the x axis.

For the 2nd graph, we have a slope that is decreasing, reaches 0 at the minimum, then increases even more.

We can draw a linear function that is increasing forever for our dy/dx.

For the 3rd graph, we are increasing , till we hit 0, then decrease until we hit 0, then forever increases.

Our dy/dx will be a parabola that passes through the x axis twice at two different points, facing upwards.

The first , second, and third graph is the dy/dx graphs shown respectively.

All these are examples of possible graphs. If you need more clarification, let me know

4 0
3 years ago
If 9/5 C +32=F, what is the temperature if it is 20 degrees Celsius?
Anit [1.1K]
20 celsius is 68 fahrenheit
3 0
3 years ago
None of these answers make sense to me, and I cannot go back and look at the notes, if you know anything about scientific notati
damaskus [11]

Answer:

Step-by-step explanation:

Venus = 12000 km = 1.2 * 10⁴

Sun: Venus = 1.4 * 10⁶ : 1.2 * 10⁴

=\frac{1.4*10^{6}}{1.2*10^{4}}\\\\=\frac{1.4}{1.2}*10^{6-4}\\\\=1.17*10^{2}

7 0
3 years ago
Explain how to find 27 percent of 16
soldier1979 [14.2K]

Convert 27% to the equivalent decimal 0.27. Multiply 16 by 0.27 to get 4.32. Use estimation to check the answer by choosing the friendly percent 25%. 25% of 16 is equal to 16 ÷ 4 = 4. The answer is reasonable.

4.32

6 0
3 years ago
Other questions:
  • What is the interquartile range of the data below?
    14·1 answer
  • (-5x²-9x-6)+(6x²+10)​
    13·2 answers
  • How many terms are in the following sequence? 131072, ..., 8, 4, 2
    8·1 answer
  • What is the unit rate for 875.52 kilometers in 38.4 hours? Enter your answer, as a decimal, in the box.
    15·2 answers
  • -Urgent Please!-
    11·1 answer
  • A child jumping rope can jump at a speed of 280 revolutions every 2 minutes. What is the number of revolutions the child can jum
    15·2 answers
  • Please help me simplify these expressions
    13·1 answer
  • Are the lines parallel, perpendicular, or neither show work cause I need to understand this
    8·1 answer
  • Ineeeddddddyoooouuuurrrrr hhhheeeellllpppp ppppllllssss
    9·2 answers
  • What’s the answer of this problem
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!