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
koban [17]
3 years ago
8

Derek has 12 shirts in his closet. if 2 out of every 3 of these shirts are striped, how many striped shirts does derek have in h

is closet
Mathematics
1 answer:
Mila [183]3 years ago
6 0
There would be 8 striped shirts.
You might be interested in
Verify the identity (tan x + 1)^2 + (tan x-1)^2= 2 sec^2 x
Elina [12.6K]

(\tan x+1)^2+(\tan x-1)^2=2\sec^2x\\\\\text{use}\ \tan x=\dfrac{\sin x}{\cos x}\\\\L_s=\left(\dfrac{\sin x}{\cos x}+\dfrac{\cos x}{\cos x}\right)^2+\left(\dfrac{\sin x}{\cos x}-\dfrac{\cos x}{\cos x}\right)^2\\\\=\left(\dfrac{\sin x+\cos x}{\cos x}\right)^2+\left(\dfrac{\sin x-\cos x}{\cos x}\right)^2\\\\=\dfrac{(\sin x+\cos x)^2}{\cos^2x}+\dfrac{(\sin x-\cos x)^2}{\cos^2x}\\\\\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2

=\dfrac{\sin^2x+2\sin x\cos x+\cos^2}{\cos^2x}+\dfrac{\sin^2x-2\sin x\cos x+\cos^2}{\cos^2x}\\\\=\dfrac{\sin^2x+2\sin x\cos x+\cos^2+\sin^2x-2\sin x\cos x+\cos^2}{\cos^2x}\\\\=\dfrac{2\sin^2x+2\cos^2x}{\cos^2x}=\dfrac{2(\sin^2x+\cos^2x)}{\cos^2x}\\\\\text{use}\ \sin^2x+\cos^2x=1\\\\=\dfrac{2(1)}{\cos^2x}=2\cdot\dfrac{1}{\cos^2x}=2\left(\dfrac{1}{\cos x}\right)^2\\\\\text{use}\ \sec x=\dfrac{1}{\cos x}\\\\=2(\sec^2x)=2\sec^2x=R_s\\\\L_s=R_s\Rightarrow The\ identity

4 0
3 years ago
What does x equal 7(2x+5)=4x -9 -x <br> PLEASEEEE HELPPPP ME
Gennadij [26K]

Answer: x=-4

Step-by-step explanation:

Given

7(2x+5)=4x-9-x

Expand parenthesis

14x+35=4x-9-x

Combine like terms

14x+35=3x-9

Subtract 35 on both sides

14x+35-35=3x-9-35

14x=3x-44

Subtract 3x on both sides

14x-3x=3x-44-3x

11x=-44

Divide 11 on both sides

11x/11=-44/11

x=-4

Hope this helps!! :)

Please let me know if you have any questions

5 0
3 years ago
Find the first four terms of this geometric sequence A1= 3 and r=-3
timama [110]
A(n)=-1(-3^n)

3, -9, 27, -81
7 0
3 years ago
Read 2 more answers
What is 7500×5643 ÷3​
just olya [345]

Answer:

<h2>14107500</h2>

Step-by-step explanation:

7500 \times 5643 \\  =  \frac{42322500}{3}  \\  = 14107500

8 0
3 years ago
Read 2 more answers
Which is the most accurate way to estimate 26% of 91?
notka56 [123]

Answer:

B

Step-by-step explanation:

26% is close to 25%, which is equal to 1/4th.

You're adding to the number and removing from the percentage so it balances it out.

8 0
3 years ago
Other questions:
  • Can’t someone help me on this please I give 15 points
    6·2 answers
  • What's the square footage of a rectangle 4ft by 6ft
    9·1 answer
  • The area of a rectangle is w^2+4w=60 where w is the width. find the width.
    9·1 answer
  • Aeen is drinking a beverage that has a pH of 3.3.
    10·2 answers
  • Evil bunny's carrot soup calls for 5/8 cups of chopped carrots per serving. If evil bunny has chopped 7 1/2 cups of chopped carr
    12·1 answer
  • Please help, nothing on google is able to answer the question
    12·1 answer
  • What is the value of the variable? 3(x- 2)=15
    14·1 answer
  • based on sample one, how many students from the entire student population preferred the 8:30 am start time​
    12·1 answer
  • If eight donuts cost 2.99 how much does 1 donut cost
    10·1 answer
  • Write always, sometimes, never to fill in the following blanks. 16. A whole number is a natural number. 17. A fraction is 18. A
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!