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zysi [14]
3 years ago
9

Evaluate ab for a = -2 3/4 and b= - 4/6

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Answer:

1  5/6

Step-by-step explanation:

ab = (-2 3/4) * (-4/6)

     = ( -11/4) * ( -4/6)

     = (11 * 4) / (4 * 6 )

      = 11/6

       = 1  5/6

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Which of the following is a perfect square a) 1057 b) 625 c) 928 d) 64000
Neko [114]

Answer:

625

Step-by-step explanation:

625 is the (perfect) square of 25.  The other three numbers are not perfect squares.

5 0
3 years ago
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Five of Lucy's friends decided to split the cost of a $130 birthday gift. Then a sixth and seventh friend decided they also want
Effectus [21]

Answer:

$7.43

Step-by-step explanation:

First, solve for what each of the 5 friends are paying:

130/5 = 26

Then, solve for what each person is paying with the addition of 2 people:

130/7 = 18.57

Last, subtract to find the answer:

26-18.57 = 7.43

5 0
3 years ago
A conveyor belt carries bales of hay from the ground to the loft of a barn 27 feet
DENIUS [597]

<u>Given</u>:

A conveyor belt carries bales of hay from the ground to the loft of a barn 27 feet  above ground.

The belt makes an 30° angle with the ground.

We need to determine the distance that the bale of hay travel on the conveyor belt.

<u>Distance that the bale of hay travel on the conveyor belt:</u>

The distance that the bale of hay travel on the conveyor belt can be determined using the trigonometric ratio.

Let the distance that the bale of hay travel on the conveyor belt be x.

Thus, we have;

sin \ \theta=\frac{opp}{hyp}

Substituting \theta=30^{\circ}, opp=27 and hyp=x

Thus, we get;

sin \ 30^{\circ}=\frac{27}{x}

Simplifying, we get;

x=\frac{27}{sin \ 30^{\circ}}

x=\frac{27}{(\frac{1}{2})}

x=54

Thus, the value of x is 54 feet.

Hence, the distance that the bale of hay travel on the conveyor belt is 54 feet.

7 0
3 years ago
U guys are smart so u can answer be strong u can do it
lozanna [386]

Answer:

56/6=9.3 approximately equal to 9 according to your 12

Step-by-step explanation:

please give me brainlest

4 0
3 years ago
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Given f(x)=x^2-6x+8 and g(x)=x-2, solve f(x)=g(x) using a table of values
Nataliya [291]
X=5,2

x^2-6x+8=x-2
x^2-7x+10
(factor)
(what multiplies to be 10 and adds to be -7)
(x-5)(x-2)
(put each equation equal to zero)
0=x-5    x-2=0
x=5,2
4 0
3 years ago
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