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
mrs_skeptik [129]
3 years ago
15

PLEASE HELP!! im being timed

Mathematics
1 answer:
marshall27 [118]3 years ago
8 0
B is the right hope it help
You might be interested in
How many angles between 0° and 360° have a tangent of<br> of 2/3?
slega [8]

Answer:

  2

Step-by-step explanation:

The tangent is positive in quadrants I and III. There are two angles with that tangent value:

  33.96° and 213.69°

5 0
2 years ago
Write the equation for a line that passes through (4,-1) and has a slope of 5
Anit [1.1K]

Answer:

y = 5x - 21

Step-by-step explanation:

Since we already know the slope, all we need to do is plug the values of x and y into the equation.

y = 5x + b

-1 = 5(4) + b

-1 = 20 + b

-21 = b

The equation is y = 5x - 21.

5 0
3 years ago
Estimate 81,467<br>and the estimate 121<br>then multiply them
Roman55 [17]
81,467 to nearest hundred is 81,500
121 to nearest hundred is 100
81,500 • 100 = 8,150,000
5 0
2 years ago
CAN SOMEONE PLEASE HELP ME. ITS HARD AND I CANT SOLVE IT. ILL MARK BRAINLIEST
S_A_V [24]

Answer:

Step-by-step explanation:

Hello,

First of all, we need to find the equation of the line.

It will be something like y = ax + b (we need to find a and b).

Then the graph is the part of the plan which is above this line, so the inequality will be

\large \boxed{\sf  \ \ y\geq ax+b \ \ }

There is only one line passing by two different points, right?

We need to find two points of this line, the x-axis gives the x of the point and the y-axis give the y of the point.

We can see on the graph that (-1,-1) and (6,13) are two points of this line.

I attached a graph with the two points A (-1,-1) and B (6,13).

We need to solve y = ax + b to find a and b which means:

(-1) = a(-1 )+ b <=> -1 = -a + b <=> -a + b = -1

(13) = a(6) + b <=> 6a + b = 13

To eliminate b, we can subtract the first equation from the second one.

6a + b -(-a) - b = 13 - (-1) = 13 + 1 = 14

<=> 6a + a = 7a = 14 we can divide by 7 both parts of the equation.

\large \boxed{\sf \ \ a=\dfrac{14}{7}=2 \ \ }

And then, b = -1 + a = -1 + 2 = 1

\large \boxed{\sf \ \ b=1 \ \ }

The equation of the line is then y=2x+1

So, the inequality is:

\Large \boxed{\sf \ \ y\geq 2x+1 \ \ }

And this is the answer of the question 1.

2. First, we find the equation of the line by finding two points on this line. Then, we deduce the inequality from the equality as the graph is all the points above the line (as explained above).

3. A real-life example is the following.

My parents gave $1 to my sister and they will give her $2 every day.

So today at x = 0 she has $1 and her pocket money will be represented by the line. And I told my parents that there were no way I can get less than my little sister. To help them understand what can be an acceptable deal I provided this graph, and I told them to only look for t positive of course.

The label for the x-axis is the time.

The label for the y-axis is the pocket money in $

After one day x = 1 my sister has $3 (point on the line), a possible solution for my pocket money is $6, $14 (two points from the graph) is also a solution of course :-)

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0
3 years ago
Need help ASAP! Thanks
Alex Ar [27]

Answer:

A = 1, B = 1

Step-by-step explanation:

From the question

(2x+1)/(x²+x) = A/x + B/(x+1)

(2x+1)/(x²+x) = [A(x+1)+(Bx)]/(x²+x)

Equation the numerator

2x+1 ≡ A(x+1) +Bx

2x+1 ≡ Ax+A+Bx

From the above,

A = 1.

And,

2x = Ax+Bx................ Equation 1

A+B = 2

Substitute the value of A into Equation 1

1+B = 2

B = 2-1

B = 1

7 0
3 years ago
Other questions:
  • La altura de un triángulo equilátero cuyo perimetro mide 45 cm ?
    9·1 answer
  • What is ten quarters equal to?
    7·2 answers
  • Ruby uses 1/4 yard of ribbon to make 2 bows.Which expression shows the length of ribbon in each bow?
    10·1 answer
  • Unit rate 232 miles in 4 hours​
    10·1 answer
  • When you find the<br> median of a set of data,<br> what quartile would this<br> number be?
    5·1 answer
  • If PQR is a triangle,given that /PQ\=15m, /QR\=17m and /RP\=18m.Find the area of the triangle to the nearest whole number.
    9·1 answer
  • 10=a/2+7 will give Brainly
    9·1 answer
  • Round 958,622 to the nearest hundred <br>​
    5·2 answers
  • Help ASAP plzzzzzzzzzz
    8·2 answers
  • A grocery store owner asked the first 20 children who visited the store one day about their favorite snack. This is what type of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!