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
pychu [463]
4 years ago
11

Please tell me and explain

Mathematics
1 answer:
kobusy [5.1K]4 years ago
4 0
You plug in 7 for every x that there is.
24(7)-7=161
5((7)^2)-5+15=255
2(7+2)+2(7)=32
You might be interested in
8mn5 – 2m6 + 5m2n4 – m3n3 + n6 – 4m6 + 9m2n4 – mn5 – 4m3n3
nata0808 [166]
=40mn-12m+40mn-9mn+6n-24m+72mn-5mn-36mn
=102mn-36m+6n
3 0
4 years ago
Use slopes to determine if the lines y= -x/3- 9 and 6x – 2y = -5 are perpendicular.
WARRIOR [948]

Answer:

They are perpendicular.

Step-by-step explanation:

When we convert the equation 6x-2y=-5 into y=mx+b form, it changes into y=3x-5/2. Since we know that perpendicular slopes are opposite reciprocal, the opposite reciprocal of -x/3 is 3. So, we know that these 2 slopes are perpendicular.

8 0
4 years ago
N = 5(m² + D)<br> Solve for D
ipn [44]

Answer:

D = n/5 - m^2

Step-by-step explanation:

work:

n = 5(m^2 + D)

distribute the 5

n = 5m^2 + 5D

move the 5 to the other side by subtracting from both sides

n - 5m^2 = 5D

Divide both sides by 5 to isolate D

n/5 -m^2 = D

use reflexive property to get the answer on the left side

D = n/5 - m^2

7 0
4 years ago
Read 2 more answers
If x,y and z are the first three terms of an geometric sequence, show that x^2,y^2 and z^2 form another geometric sequence
olganol [36]
<span>x y z are in geometric 
x/y = y/z 
OR y^2=xz 

x^2, y^2, z^2 

x^2, xz, z^2 
If they are in geometric sequence then 
xz/x^2 = z^2/xz 
z/x = z/x 
The ratios are common 
so x^2,y^2 & z^2 is a GP.</span>
8 0
3 years ago
Which traffic sign contains parallel line segments?<br> ⬆️⬇️<br> R❌R<br> T
gogolik [260]

Answer:

<h2><em><u>first option is correct</u></em></h2>

Step-by-step explanation:

<h2><em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em><em><u><</u></em><em><u>3</u></em></h2>
6 0
3 years ago
Read 2 more answers
Other questions:
  • WORTH 30 POINTS! Questions 9-16 seeking extra help. (attached image)
    15·1 answer
  • PLZ HELP ASAP!
    7·2 answers
  • I need help, could someone help me solve this? Also please explain so I can do other ones on my own. Thanks in advance!​
    13·1 answer
  • Hey so I just got this but do any of you know what is -5-(-3)?
    14·1 answer
  • Which of the following is true?
    10·2 answers
  • Step 1: -3(+ 2) = 5(x - 7)
    15·1 answer
  • 7.42 – 5(-1.62 +2.4)
    14·2 answers
  • In a game of spinning wheels, Ann got to spin a wheel twice. She scored –50 points for the first spin and 90 points for the seco
    13·1 answer
  • A man is 38 years old and his daughter is 14 years old. How
    6·1 answer
  • The graph of fx) = 7^X is stretched vertically by a factor of five.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!