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Olenka [21]
4 years ago
8

Find the value for the following determinant.

Mathematics
1 answer:
goldenfox [79]4 years ago
5 0

Answer:

5

Step-by-step explanation:

The matrix is in the form

a  b

c   d

The determinant is

ad -bc

2 *4 - 1 *3

8 - 3

5

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Find the value of 7w-8 given that -4w-5=3<br> Simplify your answer as much as possible.<br> 7w - 8 =
blondinia [14]

Answer:

The value of 7w - 8 is -22

Step-by-step explanation:

Let us solve the question

∵ -4w - 5 = 3

→ Move -5 from the left side to the right side by adding both sides by 5

∴ -4w - 5 + 5 = 3 + 5

∴ -4w = 8

→ Divide both sides by -4

∵ \frac{-4w}{-4} = \frac{8}{-4}

∴ w = -2

→ Now let us find the value of the given expression

∵ The given expression is 7w - 8

→ Substitute w by -2 to gets its value

∴ 7w - 8 = 7(-2) - 8

∴ 7w - 8 = -14 - 8

∴ 7w - 8 = -22

∴ The value of 7w - 8 is -22

8 0
3 years ago
What is the value of x in the following equation? 2(x-3)+3=6x-5<br> x=2<br> x=-2<br> x=1/2<br> x=4
creativ13 [48]

x=1/2

don't mind the dirty white board lol

6 0
2 years ago
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A pyramid with base area of 16sq cm and height of 30cm
motikmotik

b*h/3 is the formula to find the volume (or area whichever it is) of a pyramid  so it will be 16 times 30 divided by 3 which would get u to 480/3 which would then get u to 160 cm

3 0
3 years ago
Solve and explain. Sue orders pictures from her photographer. Each picture costs $8. A one-time shipping fee of $7 is added to t
Whitepunk [10]

Answer:

3 pictures

Step-by-step explanation:

Please see the attached pictures for the full solution.

☆ Since the shipping fee is a one-time fee, for an order, Sue only pays $7 once and the rest of the cost would be due to the number of pictures she ordered.

8 0
3 years ago
5(2a+3) - a+4 need help plz
Vikentia [17]

Answer:

9

Step-by-step explanation:

the answer is 9

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3 years ago
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