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
aleksandrvk [35]
3 years ago
13

Please help ASAP thank you.

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
7 0

Answer:

Q10. (1,4)

Q11. No solution

Step-by-step explanation:

Q10. To solve equations by graphing, sketch the graphs of the 2 equations. The point(s) where the two lines intersect is the solution. To sketch straight line graph, find 2 coordinates then join them.

y= -2x +6

When x=0, y= 6

When y=0,

-2x+6=0

2x=6

x=6÷2

x=3

Thus, the 2 coordinates are (0,6) and (3,0).

After plotting these 2, draw a straight line that passes these 2 points. Instead of finding the x and y coordinates, you could also find other points such as when x=5 etc.

y=4x

when y=0,

4x=0

x=0

When x=1,

y=4(1)

y=4

The 2 coordinates are (0,0) and (1,4).

Plot this graph.(1st picture) You should be able to see the point if intersection, and that is the solution.

The solution should be (1,4).

Q11. Like question 10, plot the 2 graphs and see where they intersect.(2nd picture) In this case, you would notice that the two lines does not intersect. Hence, there is no solution.

Further explanation:

This is because the first equation is y= -2x+6 and the second is y= -2(x-6). If you expand the 2nd equation, the equation is y= -2x+12.

The gradient of the two lines are the same, which means that they are parallel and therefore they do not meet.

You might be interested in
Pleaseee help!
user100 [1]

Step-by-step explanation:

f(3)=?

f(x)=2x+5

put x=3,

f(3)=2(3)+5=6+5=11

------------

g(2)=?

g(x)=x^2-3

put x=2,

g(2)=2^2-3=4-3=1

-----------------

g(f(-1))=?

g(x)=x^2-3

and f(-1)=2(-1)+5= -2+5=3

so g(f(-1))=3^2-3=9-3=6

----------------

f(g(-1))=?

f(x)=2x+5

g(x)=g(-1)=(-1)^2-3=1-3= -2

f(g(-1))=2(-2)+5= -4+5=1

----------------

g(f(x))=?

g(x)= x^2-3

put x=f(x),

g(f(x))=f(x)^2-3=(2x+5)^2-3=4x+25+20x-3=24x+25

7 0
3 years ago
On a snorkeling trip, Dave dove at least 7 times as deep as Amy did. If Dave dove below 35 feet below the oceans surface, what w
Anon25 [30]

Answer:

The deepest that Amy dove below the ocean's surface is 5 feet.

Step-by-step explanation:

Let the deepest that Amy dove below the ocean's surface be x.

7x = 35

<u>x = 5 ft</u>

3 0
2 years ago
Why is “h” negative in math
tresset_1 [31]

Answer:

Just remember that when it comes to vertex form and parabola transformations a negative h means shift right and positive h left. We anumberd to the number lgraphbitself itself having negative integers on left and positive on right and I can see why this throws people off.

Step-by-step explanation:

can i get brainlist brainly deleted all my answers for no reason

5 0
3 years ago
Read 2 more answers
I can not figure these type of problems out. I have multiple, and if I can understand how to do the problem once then I can fini
sladkih [1.3K]

The question has to do with scientific notation

<h3>What is scientific notation?</h3>

Scientific notation is the expression of a number in the form a ×  10ⁿ where 1 ≤ a ≤ 10 and n is an integer.

<h3>How to simplify the expression?</h3>

Now to simplify the expression (9 × 10⁻¹³) - (6.3 × 10⁻¹⁵) both number have to have the same exponent to the power of 10.

So, re-writing, we have

(9 × 10⁻¹³) - (6.3 × 10⁻¹⁵) = (9 × 10⁻¹³) - (6.3 × 10⁻¹³ × 10⁻²)

= (9 × 10⁻¹³) - (6.3 × 10⁻² × 10⁻¹³ )

= (9 × 10⁻¹³) - (0.063 × 10⁻¹³ )

= (9 - 0.063) × 10⁻¹³ )

= 8.937 × 10⁻¹³

So, simplifying the expression (9 × 10⁻¹³) - (6.3 × 10⁻¹⁵) = 8.937 × 10⁻¹³

Learn more about scientific notation here:

brainly.com/question/28007630

#SPJ1

3 0
1 year ago
4.11.1 Practice: Assignment. Please help i will mark brainliest! ​
amm1812

Step-by-step explanation:

x2 + 7x + 12

x2 + 4x + 3x + 12

x(x + 4) + 3( x + 4)

(x + 3) and (x + 4) are the factors

4x2 + 6x + 2

4x2 + 4x + 2x + 2

4x (x + 1) + 2(x + 1)

(x + 1) and (4x + 2) are the factors

5 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate: <br> 5·3<br> 10-2<br> A) -<br> 3<br> 4<br> B) 12 <br> C) 150 <br> D) 1500
    8·1 answer
  • PLEASEEEE HELP ITS URGENT!!!!
    15·1 answer
  • Scientists are monitoring a whale's weight by observing its weight change once a week, over a 4 week period. How much has the wh
    10·2 answers
  • the bike is on sale for $130. if the original price of the bike $200, what is the percent discount ?
    9·1 answer
  • The amount of money Tricia pays for rent each month is modeled by the equation r = $20d + 100. Tricia's roomate charges a flat u
    14·2 answers
  • What is the 20th term of the arithmetic sequence?
    6·2 answers
  • B<br> 280<br> D<br> C<br> What is the measure of angle ADB?<br> A. 17°
    15·1 answer
  • What time is number 12? Please help
    15·1 answer
  • The length of a rectangle is 7 feet less than three times the width, and the area of the rectangle is 66ft^2 . Find the dimensio
    14·1 answer
  • Can anyone help me find the area of these two pls ? ty
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!