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BabaBlast [244]
3 years ago
15

What’s -3 + 6k + 11k - 10 (combining like terms)

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
4 0
This is what i got as my answer

Marianna [84]3 years ago
3 0

Answer:

<em>17k + -13</em>

Step-by-step explanation:

<em>6k + 11k take the + next to the 6k making it say 6k+11</em>

<em>-3 - 10 take the - next to the 10 making it say -3 - 10</em>

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Find the equation of the line that goes through (-8,11) and is perpendicular to x= - 15. Write the equation in the form x = a, y
galben [10]

Answer:

y=11

Step-by-step explanation:

Hi there!

We want to find the equation of the line that passes through the point (-8, 11) and is perpendicular to x=-15

If a line is perpendicular to another line, it means that the slopes of those lines are negative and reciprocal; in other words, the product of the slopes is equal to -1

The line x=-15 has an undefined slope, which we can represent as 1/0, which is also undefined.

To find the slope of the line perpendicular to x=-15, we can use this equation (m is the slope):

m_1*m_2=-1

m_1 in this instance would be 1/0, so we can substitute it into the equation:

\frac{1}{0} *m_2=-1

Multiply both sides by 0

m_2=0

So the slope of the new line is 0

We can substitute it into the equation y=mx+b, where m is the slope and b is the y intercept:

y=0x+b

Now we need to find b:

Since the equation passes through the point (-8,11), we can use its values to solve for b.

Substitute -8 as x and 11 as y:

11=0(-8)+b

Multiply

11=0+b, or 11=b

So substitute into the equation:

y=0x+11

We can also write the equation as y=11

Hope this helps!

5 0
3 years ago
Given the trigonometric equation:
Oxana [17]

Make use of your knowledge of the values of the sine function to determine angles where sin(y) = -(√3)/2. Then translate those angles to different quadrants or add different multiples of 360° (or 2π radians) as needed to find as many solutions as you want.

sin(y) = (√3)/2 for y = 60° (or π/3 radians)

The sine will be negative for angles in the 3rd and 4th quadrants whose reference angle is 60°. Those angles are 180°+60° = 240°, and 360°-60° = 300°. These are two of your solutions. You can add 360° to either of them to find another solution: 240°+360° = 600°, for example.

The solution set includes y = ...

... 240°, 300°, 600°

or

... 4π/3, 5π/3, 10π/3 radians

6 0
3 years ago
A set of scales is used to show that two lemons and seven tomatoes are required
Darya [45]

Answer:

8 tomatoes are required to balance 1 cabbage

Step-by-step explanation:

Given :

Two lemons and seven tomatoes are required  to balance one cabbage:

2 Lemons + 7 tomatoes = 1 cabbage                 (equation 1)

two lemons balance one tomato

2 lemons = 1 tomato

put in equation 1:

1 tomato + 7 tomatoes = 1 cabbage

8 tomatoes = 1 cabbage

<u><em>8 tomatoes required to balance one cabbage</em></u>

7 0
3 years ago
Find sin3A, cos<br> 3A and tan 3A when sin=1/2<br>​
Slav-nsk [51]

Answer:

Sin 3A = 1

cos 3A = 0

tan 3 A = undefined

Step-by-step explanation:

\sin A =  \frac{1}{2}  \\  \therefore \: \sin A =   \sin \: 30 \degree.. \bigg( \because \: \sin \: 30 \degree =  \frac{1}{2} \bigg) \\ \therefore \: A =   30 \degree \\  \\ now \\   \sin 3A =\sin (3 \times 30 \degree)= \sin \: 90 \degree = 1 \\  \\  \cos 3A =\cos (3 \times 30 \degree)= \cos \: 90 \degree = 0\\\\ \tan 3A =\tan (3 \times 30 \degree)= \tan \: 90 \degree =  \infty

4 0
4 years ago
36.8 is the sum of r and 13.8 <br> x=
Alecsey [184]

Answer:

r=23

Step-by-step explanation:

sum: quantity obtained by addition

r+13.8=36.8

r=36.8-13.8

r=23

3 0
3 years ago
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