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lions [1.4K]
2 years ago
15

What is the product of 2.8 and 2.9? a.) 0.618 b.) 6.18 c.) 9.512 d.) 3.608​

Mathematics
1 answer:
bogdanovich [222]2 years ago
6 0

Answer:

its a

Step-by-step explanation:

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2x + 3 = -7 what is x ​
Shtirlitz [24]

Answer: x=-5

Step-by-step explanation:

You would have to do the inverse to “undo” the equation.

So first you would do -7-3=-10

Then you would do -10/2=-5 to find x

6 0
2 years ago
Rewrite 7x + 4 = x – 2 as a system. y = –(7x + 3) y = –(x – 2) y = (7x + 4) y = –(x – 2) y = (7x + 4) y = x – 2
Slav-nsk [51]

Answer: \left \{ {{y=7x+4} \atop {y=x-2}} \right.  (LAST OPTION)

Step-by-step explanation:

You have the following expression given in the problem:

7x+4=x-2

If the expression on the left side of the equation is equal to the expression on the right side of the equation, and the problem asks to rewrite it as a system, you can conclude that the first equation is:

y=7x+4

And the second equation is:

y=x-2

Therefore, you can set up the following system of equations:

\left \{ {{y=7x+4} \atop {y=x-2}} \right.

8 0
2 years ago
Read 2 more answers
Which statement is true of every plane in three-dimensional space?
leonid [27]

Answer:

option A is correct.(Every plane must have three intercepts.)

Step-by-step explanation:

" Three-dimensional space (also: 3-space or, rarely, tri-dimensional space) is a geometric setting in which three values (called parameters) are required to determine the position of an element (i.e., point). This is the informal meaning of the term dimension "

The intercept form of the equation of plane in 3-D is given by:

\dfrac{x}{l}+\dfrac{y}{m}+\dfrac{z}{n}=1

Where l,m,n are intercepts of x,y,z axes and a plane respectively.

Hence, we require all the three intercepts of a every plane.

Hence, option A is correct.

4 0
3 years ago
Read 2 more answers
Please it is timed will give 30 points
Alchen [17]

Answer:

36 units squared

Step-by-step explanation:

Since this is kind of a weird shape, we can split it into two smaller shapes, a triangle, and a rectangle.  

The rectangle is 6 units wide, and 4 units long.  Multiply the length and width to get 24 units squared.  

The triangle has a base of 6 and a height of 4, so multiply the base and height, then divide by 2.  6 times 4 is 24 and that divided by 2 is 12.  

Finally add the two areas together.  24+12=36 units squared.

6 0
3 years ago
Read 2 more answers
3. Solve the equation for y.<br> 3(2y + 4) = 8y<br><br> A. –8<br> B. –6<br> C. –2<br> D. 2<br> E. 6
AfilCa [17]

Answer:

y = 6

Step-by-step explanation:

Perform the indicated multiplication:  6y + 12 = 8y

Consolidate y terms on the right:                12 = 8y - 6y = 2y, or y = 6

7 0
3 years ago
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