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Inessa [10]
3 years ago
11

(2b^2 - 5b) - (7b + 3b^2)

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0

Answer:

-13b

Step-by-step explanation:

(2b^2 - 5b) - (7b + 3b^2)

-3b^2 - 10b^2 = -13b

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NEED HELP NEED HELP please if you know show me how you got the answer
OLEGan [10]

Answer:

It says to Graph y = 1/2x - 4

So equation y = 1/2x - 4

this corresponds to slope intercept form which is y = mx + b

M = slope = rise / run

B =  y - intercept

First, start at the origin, (0,0)

Then go down 4, you should now be on the coordinate (0,4)

Now we need to use the slope.

The slope is 1 / 2, this means rise 1, run 2 (in this case 2 to the right because it is positive)

So, start at (0 , 4) and go up 1 unit then 2 to the right, then place a dot, keep repeating until you meet the end of the paper.

Then do the opposite so that you can graph the other side.

Down 1 and 2 to the left.

4 0
3 years ago
Read 2 more answers
What is the radian measure of the smallest angle formed by the hands of a clock at 7 o'clock?
netineya [11]
See the picture attached to better understand the problem
we know that
a full circle is a 360 degrees
divided in 12 equals parts-------> 360/12-------> 30 degrees each part

<span>the smallest angle formed by the hands of a clock at 7 o'clock has 5 parts
so
5*30</span>°------> 150°

convert to radian
pi radians---------> 180°
 x ---------------> 150°
x=150*pi/180--------> x=0.83*pi radians

the answer is
0.83*pi radians  or 2.62 radians

5 0
3 years ago
Solve the equation. If the equation is an identity, choose identity. If it has no solution, choose no solution. 4(t + 2) = 10
Nuetrik [128]

Answer & Step-by-step explanation:

4(t + 2) = 10

4t + 8 = 10

4t = 2

t = 1/2

Hope this helps

3 0
3 years ago
Using the equation F = ma, find the acceleration (a) of a 15 kg mass (m) that is acted on by 3 Newtons of Force (F). Group of an
Tcecarenko [31]

Answer:

Step-by-step explanation:

Yes

6 0
3 years ago
Read 2 more answers
Determine all values of h and k for which the system S 1 -3x - 3y = h -4x + ky = 10 has no solution. k= ht
Lana71 [14]

Answer:

h\neq 7.5

k = -4

Step-by-step explanation:

Given system of equations are,

-3x-3y = h

-4x + ky = 10

We have to find the values of h and k such that system of equations has no solution.

The standard form of system of equation in two variables can be given by,

a_1x+b_1y+c_1=0

a_2x+b_2y+c_2=0

And condition for the system of equations has no solution is given by,

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}\neq \dfrac{c_1}{c_2}

So, by comparing the standard form of equations with given equations, the condition such that system has no solution can be written as,

\dfrac{-3}{-4}=\dfrac{-3}{k}\neq \dfrac{h}{10}

=>\dfrac{-3}{-4}=\dfrac{-3}{k}

=> k = -4

and \dfrac{-3}{-4}\neq \dfrac{h}{10}

    =>\ \dfrac{-3\times 10}{-4}\neq h

    =>\ h\neq \dfrac{30}{4}

    =>\ h\neq 7.5

So, the value of h and k for above given system of equations is

h\neq 7.5 and k = -4.

7 0
3 years ago
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