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
viva [34]
3 years ago
5

Will mark brianliest please help

Mathematics
1 answer:
MrRissso [65]3 years ago
4 0

Answer:

See below.

Step-by-step explanation:

7x^2 = 343                     Divide both sides by 7

7x^2/7 = 343/7

x^2 = 49                         Take the square root of both sides.

sqrt(x^2) = sqrt(49)

x = +/- 7

Answers

  • 7
  • - 7
  • sqrt(49)
  • - sqrt(49)

I think the last two are kind of iffy. I'm not sure you can call them solutions, but the question probably assumes they are. If you use all four answers and get it wrong, them submit +7 and - 7.  

You might be interested in
Use the distributive property to write the following expression WITH parentheses:<br><br> 6x+18
Free_Kalibri [48]

Answer:

6(x+3)

Step-by-step explanation:

6x+18

6*x + 3*6

Factor out a 6

6(x+3)

3 0
3 years ago
Which equation is y = –3x2 – 12x – 2 rewritten in vertex form?
Andrej [43]
<span>The general equation of a quadratic is expressed as y = ax^2+bx+c. To convert the general equation to vertex form, we need to obtain this form:

(y- k)= a(x - h)^2

This could be done by using completing the square method.

</span><span>y = –3x^2 – 12x – 2
</span><span>y + 2 = –3(x^2 + 4x) 
</span>y + 2 -12 <span>= –3(x^2 + 4x + 4) 
</span>y - 10 = -3(x+2)^2

Therefore, the answer is the first option.
3 0
3 years ago
Read 2 more answers
A play train travels around a christmas tree in a circle. the train tracks measure 6 feet in diameter. what is the length of the
mixas84 [53]
1.8288 de diâmetro
1pés e equivalente a 0.3048 e so multiplicar por 6 que vai da 1.8288
3 0
3 years ago
Write an equation for your trend line?
Soloha48 [4]
Find two points on the graph that the line crosses through almost perfectly. It looks like (1,10) and (9,1) will do.

Use them to compute the slope:
m = (1 - 10) / (9 - 1)
= -9/8

Then set up the "point-slope form":
y - y0 = m * (x - x0)

You choose some point (x0, y0) that the line crosses through. We already know the line passes through (1,10) pretty well, so let's use that.

x0 = 1
y0 = 10

Now finish plugging into the equation:
y - 10 = -9/8 * (x - 1)

The above equation will work fine for an answer, but let's go a step further and solve for y.

y - 10 = -9/8x + 9/8
y = -9/8x + 9/8 + 10
y = -9/8x + 9/8 + 80/8
y = -9/8x + (9 + 80)/8
y = -9/8x + 89/8
4 0
3 years ago
15x+98=105 What is the value of x and please show your work. :) ​
Yuliya22 [10]

Answer:

15x+98=105

      -98    -98

15x=7

/15    /15

x=7/15

Step-by-step explanation:

x=7/15

4 0
3 years ago
Other questions:
  • A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of20 cen
    9·1 answer
  • I know it equals 180 I’m just confused.
    7·1 answer
  • Don't understand how to do it<br>f(n)= 23+8(n-1)<br>​
    13·2 answers
  • Convert the fraction 1/(x+1) to a denominator of x*3 + 1
    10·1 answer
  • Joe and his 2 friends are making Smores. Each Smore uses 1/4 of a chocolate bar and the package has 8 chocolate bars. How many S
    7·1 answer
  • 10 (2+3)-83 what’s the answer ?
    7·2 answers
  • The price of a car was decreased by 40% to £750.<br> What was the price before the decrease?
    9·1 answer
  • Which is greater 1/4 or 0.75
    9·2 answers
  • Pls help. Me I need sum help y’all
    7·2 answers
  • A group of students is riding in a bike tour. They have biked 15 miles, which is 25% of the tour. How long is the tour?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!