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
Readme [11.4K]
3 years ago
9

Answer question 4 plz! (100 points!!!)

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
8 0

Answer:

d

Step-by-step explanation:

Kitty [74]3 years ago
7 0

Answer? i think its d

You might be interested in
If you take a number, times by 8 then add 6. You get the same as if you took the number multiply it by 3 then subtract 7. What i
Gennadij [26K]

Answer:

x = -13/5

Step-by-step explanation:

let x be the number

8x + 6 = 3x - 7

move variables to left and numbers to right

8x - 3x = - 7 -6

5x = -13

x = -13/5

4 0
3 years ago
Over the interval [0,2pi), what are the solutions to cos(2x) = cos(x)? check all that apply​
kykrilka [37]

\cos(2x)  =  \cos(x)

Solution (1)

2x = x + 2k\pi

2x - x = 2k\pi

x = 2k\pi

for k=0 / for k=1 / for k=-1

x=0 / x=2π / x=-2π

acc / acc / rej

solution (2)

2x =  - x  + 2k\pi

2x + x = 2k\pi

3x = 2k\pi

x =  \frac{2k\pi}{3}

for k=0 / for k=1 / for k=-1

x=0 / x=2π/3 / x=-2π/3

acc / acc / rej

Note that i'm trying values of K which make the answer belong to our interval;

So our solution which i will represent as a set is;

S € {0,2π/3,2π}

6 0
2 years ago
What is the volume of this square pyramid?
tatuchka [14]

Answer: 1296 cm³

Step-by-step explanation:

Since, the volume of a square pyramid is,

V = \frac{a^2h}{3}

Where a = side of the square base,

h = height of the pyramid,

By the given diagram,

a = 18 cm,

h = 12 cm,

Hence, the volume of the given pyramid,

V = \frac{18^2\times 12}{3}

= \frac{324\times 12}{3}

=\frac{3888}{3}

=1296 cube cm.

⇒ First option is correct.

5 0
3 years ago
Logan and Jack collected 180 aluminium cans from the park. Jack collected twice as many aluminum cans as Logan. How many alumini
drek231 [11]
Answer
Logan collected= 180
Jack collecte twice as Logan =(180*2) = 360
Jack has 360 cans
6 0
3 years ago
Lightwaves travel from the air into a lens made of glass. Their velocity decreases as they enter the glass. How does this affect
Bingel [31]
Their frequency stays the same and their wavelength decreases
7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the volume of the following solid figure. Use = 3.14. V = 4/3r3. A sphere has a radius of 3.5 inches. Volume (to the neares
    8·2 answers
  • The summer has ended and it’s time to drain the swimming pool. 20 minutes after pulling the plug, there is still 45 000L of wate
    5·1 answer
  • What number should be added to both sides of the equation to complete the square?<br> x2 - 6x = 5
    9·1 answer
  • Find the value of x<br> 143°<br> 2x°<br> 116°<br> 125°<br> 152°<br> 140°<br> 139°<br> X°
    9·2 answers
  • How to add subtract multiply and divide fractions?
    9·1 answer
  • A box of Godiva chocolates contains 45 identically wrapped 8) chocolates. Ten are truffles, 21 have caramel fillings, the rest h
    15·2 answers
  • Arnold began working at a coffee shop on April first. Ms.Ware, his new boss, told Arnold he would earn $2,500 each month if he w
    15·2 answers
  • Bob makes $50 a day and works 22 days a month at the beginning of this month bob received a 10% pay increase how much more money
    8·1 answer
  • Find an angle betwwen 0 and 2pie that is coterminal with -19pie/10
    8·1 answer
  • Type the correct answer in the box. Spell all words correctly.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!