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Dima020 [189]
3 years ago
8

4 a + 5 b when a = 4 and b = - 1.2

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0

The answer is 10.

4 a + 5 b when a = 4 and b = - 1.2

Svetllana [295]3 years ago
8 0

Hi! All you have to do is insert the a and b values into the equation.

4a + 5b

4(4) + 5(-1.2)

16 + (-6)

= 10

Hope this helps!


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Danielle wants to know if a new dresser will fit next to her bed. The dresser she would like to buy is 73 centimeters wide. She
zhannawk [14.2K]

Answer:

No.

The dresser's width(28.74in) is greater than the remaining free width(10in) in the room.

Step-by-step explanation:

First, convert the chest width into inches,73cm=28.74 \ in

To find the excess width after fitting the bed in her room, we subtract the bed width from the room's width:

Width_R=86 \ in\\Width_B=76 \ in\\\\Width_{excess}=Width_R-Width_B\\\\=86\ in -76\ in\\\\=10\ in

Since 10in is less than 28.74in, the dresser will not fit next to her bed.

5 0
3 years ago
Can anyone please help. this is my last question!!!!
Andrej [43]

9514 1404 393

Answer:

  x = 3.6

Step-by-step explanation:

The angle bisector divides the triangle proportionally.

The base segment to the right of the bisector is 6-x, so we can write the proportion ...

  x/6 = (6-x)/4

Multiplying by 12, we get ...

  2x = 3(6 -x)

  5x = 18 . . . . . add 3x

  x = 18/5 . . . .  divide by 5

  x = 3.6

_____

<em>Alternate solution</em>

Since the base of the triangle is given as a left-part and a sum-of-both-parts, we can write the proportion the same way:

  left-part / sum-of-both-parts = x/6 = 6/(6+4)

Then the solution is x = 6(6/10) = 36/10 = 3.6.

Doing it this way avoids having x on both sides of the equation, so makes solving the equation be "one step."

8 0
2 years ago
Plz help me .. I am really stumped!!!!!!! part of the set for a play is a big triangular piece of plywood. the area of the trian
saul85 [17]
The way to find the area of a triangle is A=\frac{B*H}{2}
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now we can add it to our area equation
20=\frac{H(H+3)}{2}
20=\frac{ h^{2} +3h}{2}
40=H^{2}+3H
10\frac{1}{3}=H^{2}
h=3.2ft

3 0
3 years ago
Make L the subject of the formula T=2π√L\G​
Trava [24]

Answer:

T^2=4π^2*L/G

L=(T^2*G)/4π^2

Step-by-step explanation:

hope this helps

4 0
3 years ago
Read 2 more answers
If this figure is reflected across the x-axis, what is the orientation of the reflected figure?
Naddika [18.5K]
I'm pretty sure that would go down into the negatives.

6 0
2 years ago
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