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Dahasolnce [82]
3 years ago
5

What is -3(-4a-2)???

Mathematics
2 answers:
AleksAgata [21]3 years ago
3 0

Answer:

-3(-4a - 2) = 12a + 6

nordsb [41]3 years ago
3 0

Answer:

-3(-4a - 2) = 12a + 6

Step-by-step explanation:

-3(-4a - 2)

=> multiply -3 by everything in the parenthesis

-3 * -4a = 12a

-3 * -2 = 6

=> combine like terms

12a + 6

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One day on Snow White’s mail route there were 2920 pieces of mail to be delivered. If 45% of those pieces were advertising piece
Masja [62]
Hello!

You have to find 45% of 2,920

First change 45% to a decimal

To change percents to decimal, remove the % sign and add a decimal point 2 places to the left.

45% = 0.45

<em>Now multiply</em>

0.45 × 2,920 = 1,314

There are <u>1,314 </u>advertising pieces

3 0
4 years ago
Read 2 more answers
) If the gradient of ff is ∇f=xi⃗ +yj⃗ +3zyk⃗ ∇f=xi→+yj→+3zyk→ and the point P=(−6,−6,−2)P=(−6,−6,−2) lies on the level surface
Paha777 [63]

Answer:

-3x-3y-z=38

Step-by-step explanation:

To find the equation of the tangent plane you can use

\bigtriangledown f_x(x_0,y_0,z_0)(x-x_0)+\bigtriangledown f_y(x_0,y_0,z_0)(y-y_0)+\bigtriangledown f_z(x_0,y_0,z_0)(z-z_0)=0

the point P is (-6,-6,-2). Hence you have

(-6)(x-(-6))+(-6)(y-(-6))+(-2)(z-(-2))=0\\-6x-36-6y-36-2z-4=0\\-6x-6y-2z=76\\-3x-3y-z=38

hope this helps!!

5 0
3 years ago
Use your device keyboard to enter x+1= 7 in the box.<br>Check Answer​
egoroff_w [7]
<h2>ANSWER:</h2>

_______________________________________________________

Answer is x = 6

_______________________________________________________

<h2>EXPLANATION:</h2>

_______________________________________________________

We know that 7 - 1 is 6. 6 is what x equals because 7 - 1 is 6 and 6 + 1 is equal to 7.

Hope this helps!

7 0
4 years ago
Can y’all help me understand this
Natasha2012 [34]

Answer:

Yo teachers doing you wrong with this cryptic stuff

Step-by-step explanation:

8 0
3 years ago
Which system of equations is graphed below?
algol [13]

(Pls give brainliest! :D)

Answer:

<em>B</em>

Step-by-step explanation:

<em>You know that the graph intercepts at the point of (4,-2)</em>

<em />

<em>Where x = 4 and y = -2.</em>

<em />

<em>This means that whenever you plug a value of x in the equation it should give the value of y.</em>

<em />

<em>For example when you plug x= 4 into the equation (B), it should look like this.</em>

<em />

<em>4- y = 6, solving for y gives us the value negative 2.</em>

<em />

<em>This means that it does give us this point, however, as the graph shows us, both lines meet at the point which means that both equation should give us this point.</em>

<em />

<em>If we substitute x = 4 in the second equation of b, we should be able to get 3(4) + 4y = 4. Solving for y gives us -2.</em>

<em />

Hope this helps!

-<em>Yumi</em>

4 0
3 years ago
Read 2 more answers
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