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Reika [66]
3 years ago
7

-6 (3t - 6) - 3 (11t - 3)

Mathematics
1 answer:
Ronch [10]3 years ago
6 0

Answer:

-51t+45

Step-by-step explanation:

-6(3t-6)-3(11t-3)

-18t+36-33t+9

-51t+45

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Jan wants to protect the wooden box in question 4a by painting varnish on all of the outside surfaces, including the bottom. Wil
Dafna1 [17]

Answer:

As this question is incomplete, but we will try to solve this question by adding our own data to understand the concept of the problem.

Explanation is given below

Step-by-step explanation:

As this question is incomplete, but we will try to solve this question by adding our own data to understand the concept of the problem.

In order to answer this question we need to have the dimensions of the box.

Let's suppose there are 6 outside surfaces of the box and are equal in dimension including the bottom side which Jan wants to varnish.

So,

Let's suppose,

Surface area of the cube = 6a^{2}

Here, Surface area = 275 square inch

Surface area of the cube = 6a^{2} = 275 square inch

a^{2} = 275/6 = 45.833

a = \sqrt{45.833}

a = 6.77 inches

Now, for the amount of the varnish, we need the spreading rate of the varnish to be used on the box,

Let's suppose it is = 11 square incher per litre.

So,

Required Varnish = Surface area / Spreading rate

Required varnish = 275 / 11

Required varnish = 25 liters

If the 1 container of varnish contains 25 liters then it will be sufficient to protest the outside surfaces of the box.

6 0
3 years ago
Simplify the following expression into the form a + bi, where a and b are rational numbers.
vagabundo [1.1K]
The answer is -16 - 10i.

Using the distributive property on the first part, we have:
-2i*7--2i*4i + (3+i)(-2+2i)
-14i+8i² +(3+i)(-2+2i)

Using FOIL on the last part,
-14i+8i²+(3*-2+3*2i+i*-2+i*2i)
-14i+8i²-6+6i-2i+2i²
-10i+8i²-6+2i²

Since we know that i = -1,
-10i+8(-1)-6+2(-1)
-10i-8-6-2
-16-10i
7 0
3 years ago
Read 2 more answers
Drag the expression into the boxes to correctly complete the table
bazaltina [42]

Answer:

2nd and 3rd are polynomials, rest arent

Step-by-step explanation:

Polynomial has to have no ||s, sqrts, or variables in denominator of fraction

3 0
2 years ago
(-4s+9) + (4s-6) simplify
andrew11 [14]

Step-by-step explanation:

= ( - 4s + 9) + (4s - 6)

=  - 4s + 9 + 4s - 6

=  - 4s + 4s +9 - 6

Now subtract.....

= \boxed{\sf{3}}

hence the answer is 3 ....

hope it helped !!!!

6 0
2 years ago
7. Reduce the fraction 36/48 to its lowest terms. A. 1 12/48 B. 3/4 C. 1 1/4 D. 6/8
Pie
The answer is B. 3/4

36/48 both share the common factor of 12, divide 12 by the numerator and denominator to get the simplified fraction, 3/4
3 0
3 years ago
Read 2 more answers
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