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3 years ago

If a=-3 and b=2, evaluate 3b -5a and 2a-6/2 and find their sum.

Mathematics

1 answer:

baherus [9]3 years ago

7 0

Answer:

-6

Step-by-step explanation:

3b-5a 2a-6/2

3(2)-5(3) 2(3)-6/2

6-15 6-3

-9 + 3

-6

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A decorative steel is shown and it is made from circular circle and 6 stems.

STALIN [3.7K]

The total length of the steel used in the frame is 270 cm, if the decorative steel up of 6 stems and each stem is 45 cm.

Step-by-step explanation:

The given is,

Decorative steel made from circular circle of 6 stems

The length of the stem is 45 cm

Step:1

We need to find the total length of the steel used in the decorative steel,

Let, T - Total length of the steel

L - Length of the stem

n - Number of stems used in steel frame

Step:2

Formula to find the total length of the steel is,

$T=$ $l$ × $n$

From given,

$l$ = 45 cm

$n$ = 6 stems

Substitute the values in formula,

$T =$ ( 45 × 6 )

= 270

$T =$ 270 cm

Result:

The total length of the steel used in the frame is 270 cm.

5 0

4 years ago

The arena wants to estimate the previous two month’s ticket-sale income. In total, 71,115 people attended different events at th

Assoli18 [71]

It would be 25 dollars

6 0

4 years ago

What is the answer to x-(9x-10)+11=12x+3(-2x+1/3

lys-0071 [83]

x = 10/7. Hope this helped

3 0

4 years ago

Plsssssss helpppppppppppppppp

Serga [27]

Answer:

52 cm

Step-by-step explanation:

The missing length is equal to 11 - 4 which is 7

7 + 11 + 4 + 15 + 5 + 10 = 52

3 0

3 years ago

What is the value of n? A. 36 B. 59 C. 95 D. 23

san4es73 [151]

X = 180 - 121 = 59°
y = 180 - 144 = 36°
n = (x+y) = 59 + 36 = 95°

Answer is С. 95°

8 0

3 years ago