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
Artemon [7]
3 years ago
5

2x(2x+3) Expanding brackets please

Mathematics
2 answers:
alekssr [168]3 years ago
5 0

Answer:

4x^2+6x

Step-by-step explanation:

2x(2x+3)

so what you do it yo first

you multiply 2x by 2x to get the answer of 4x^2

after you muctiply 2x by +3 to get 6x

finlly you get your aswer as

4x^2+6x

valina [46]3 years ago
4 0

Answer:

54 or 15

Step-by-step explanation:

x = any number

x = 3

First solve the brackets:

2x + 3

(2x3) + 3 = 9

2x = 6

I can help you up to here because the question isn't worded properly.

If you are multiplying then it would be: 9x6 = 54

If you are adding then: 9+6 = 15

Hope this helps!

You might be interested in
The perimeter of a rectangular plot of land is 76 m. Its length is 3 more than 4 times the width. What is the area of the plot o
Elza [17]

Answer:

Step-by-step explanation:

perimeter =76 m

L=3+w

w

2L+2W=76

2(3+W)+2W=76

6+2w+2w=76

4w=70

w=70/4

w=17.50

L=17.50+3=20.50

A=L*W=17.50*20.50=358.75m^2

3 0
3 years ago
1+secA/sec A = sin^2 A / 1-cos A​
Fofino [41]

Answer:  see proof below

<u>Step-by-step explanation:</u>

\dfrac{1+\sec A}{\sec A}=\dfrac{\sin^2 A}{1-\cos A}

Use the following Identities:

sec Ф = 1/cos Ф

cos² Ф + sin² Ф = 1

<u>Proof LHS → RHS</u>

\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}

\text{Identity:}\qquad \qquad \dfrac{1+\frac{1}{\cos A}}{\frac{1}{\cos A}}

\text{Simplify:}\qquad \qquad \dfrac{\frac{\cos A+1}{\cos A}}{\frac{1}{\cos A}}\\\\\\.\qquad \qquad \qquad =\dfrac{1+\cos A}{1}

\text{Multiply:}\qquad \qquad \dfrac{1+\cos A}{1}\cdot \bigg(\dfrac{1-\cos A}{1-\cos A}\bigg)\\\\\\.\qquad \qquad \qquad =\dfrac{1-\cos^2 A}{1-\cos A}

\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}

\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark

3 0
4 years ago
What is the percentage of 75 out of 100 students
DochEvi [55]
75% would be the percentage of 75/100 students because 100 is the percent and 75 of 100 is 75%.
8 0
3 years ago
A researcher wanted to see if different breeds of dogs preferred toys of certain colors. The researcher presented each dog with
Marta_Voda [28]

The value for the test statistic and the p value on the test when the researcher wanted to see if different breeds of dogs will be x² = 0.9421 and 0.05 < p value < 0.10.

<h3>How to illustrate the research?</h3>

From the information given, the null hypothesis is that the variables have no difference while the alternative hypothesis is that they have a difference.

The degree of freedom will be:

= (3 - 1) × (3 - 1)

= 4

The critical value is 9.4877. In this case, the p value is greater than the significance level. Therefore, we fail to reject the null hypothesis.

Learn more about research on:

brainly.com/question/968894

#SPJ1

4 0
2 years ago
The product of two positive numbers is 35 and their difference is 2. What is the sum of the two numbers.
tigry1 [53]
7×5=35
7-5=2
The two numbers are 7 and 5
4 0
3 years ago
Read 2 more answers
Other questions:
  • What graph is the graph of y ≥ 1 - 3x?
    14·2 answers
  • Consider the solution to the linear equation. 5 (x + 6) = 50. 5 x + 30 = 50. 5 x = 20. x = 4. Which describes the inverse operat
    10·2 answers
  • Write a Algebra or Geometry word problem that isn't too hard or too easy. Provide answer and show your work. 40 POINTS!!!!
    7·1 answer
  • Is ab congruent to de​
    10·1 answer
  • What does 5 gallons equal ___ Quarts
    10·2 answers
  • The length of a flat screen TV is 5 inches less than 3 times its width. If the perimeter of the TV is 150 inches, find the dimen
    12·1 answer
  • Find the angle in the image.
    15·1 answer
  • What's the first step in order to solve the exponential equation?
    7·1 answer
  • Use the figure below to answer the question <br><br> Solve for x
    7·2 answers
  • Solve the system by elimination​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!