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Debora [2.8K]
2 years ago
8

A(8x + 7) what is the value of a

Mathematics
1 answer:
sdas [7]2 years ago
4 0

Answer:

A B C  E F G H I J K L M N O P Q R S T U V W  Y & Z so I guess the value of A is 1

Step-by-step explanation:

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How many different ways can 7 people sit in seats labeled A – G?
motikmotik

Answer:

49

Step-by-step explanation:

count your options on the thang there are 7 dfrny seats and 7 different peps you do 7*7

8 0
3 years ago
Read 2 more answers
The length of a rectangle is four feet longer than the width. the area is 21. find the dimension
MakcuM [25]
The length is 7 and the width is 3
7 0
3 years ago
Is perpendicular to ? Explain.
olga2289 [7]
Two lines are perpendicular if and only if the product of their slopes is - 1.

So, you just need to find the slope of each line and find out the product of their slopes.

I will do one example for you.

L1: y = 3x + 5

L2: y = - 3x + 14

L3: y = -x/3 + 14

The slope of a line is the coefficient of the x.

So the slopes are:

L1: slope 3
L2: slope -3
L3: slope -1/3

So now multiply the slopes of each pair of lines:

L1 and L2: 3 * (-3) = - 9 => No, they are not perpendicular

L2 and L3: (-3) * (-1/3) = 1 => No, they are not perpendicular

L1 and L3: (3) *  (-1/3) = -1 => Yes, they are penpendicular.
6 0
3 years ago
Read 2 more answers
1. The average cow brain weighs 21b (pounds) which is 32oz (ounces). How many ounces (oz) are in 5lbs? Use a proportion to conve
VashaNatasha [74]

Answer:

80 oz

Step-by-step explanation:

8 0
3 years ago
Researchers have found that after 25 years of age the average size of the pupil in a
laila [671]

Answer:

At 25 = 6.8612mm

At 50 years = 5.422mm

Step-by-step explanation:

Equation,

d = 2.115Logₑa + 13.669

d = diameter of the pupil

a = number of years

Note : Logₑa = In a (check logarithmic rule)

d = 2.115Ina + 13.669

1. At 25 years,

d = -2.115In25 + 13.669

d = -2.115 × 3.2188 + 13.669

d = -6.807762 + 13.669

d = 6.8612mm

At 25 years, the pupil shrinks by 6.86mm

2. At 50 years,

d = -2.1158In50 + 13.669

d = -2.1158 * 3.912 + 13.669

d = -8.2770 + 13.699

d = 5.422mm

At 50 years, the pupil shirks by 5.422mm

To save this question, I had to plug in the values into the equation.

Solving for Logₑa might be difficult, so instead I used Inx which is the same thing. Afterwards, i substituted in the values and solve the equation for each years.

8 0
3 years ago
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