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alexdok [17]
2 years ago
12

1) The roots of the equation 9x2 + 3x – 4 = 0 are

Mathematics
2 answers:
Rudiy272 years ago
8 0

Answer:

D.

Step-by-step equation:

I don't know but i think this is the answer.

Wittaler [7]2 years ago
7 0
A !! hope this helps
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A large department store is curious about what sections of the store make the most sales. The manager has data from ten years pr
Snowcat [4.5K]

Answer:

Hypotheses:

H0: There is no difference in the distribution of current sales.

H1: There is a difference in the distribution of current sales.

Enter the test statistic - round to 4 decimal places. 23.0951

Enter the p-value - round to 4 decimal places. 0.0003

Can it be concluded that there is a statistically significant difference in the distribution of sales?

Yes

please mark me brainliest!

7 0
2 years ago
A bridge builder wants to know the width of a river. He stands at point A along the river. He picks a point C directly across th
Maurinko [17]
<span>width = 90 tan43 degrees = about 84 feet </span>
8 0
2 years ago
How many pairs of whole numbers have a sum of 110
kap26 [50]

There are different definitions of "whole numbers".

Some define it as an integer (i.e. positive or negative) [some dictionaries]

Some define it as a non-negative integer. [most math definitions]

We will take the math definition, i.e. 0<= whole number < &infin;

To find pairs (i.e. two) whole numbers with a sum of 110, we start with

0+110=110

1+109=110

2+108=110

...

54+56=110

55+55=110

Since the next one, 56+54=110 is the same pair (54,56) as 54+56=110, we stop at 55+55=110  for a total of 56 pairs.

5 0
2 years ago
Sheila places a 54 square inch photo behind a 12-inch-by-12-inch piece of matting.
nata0808 [166]
The are of a rectangle is calculated by multiplying the length and the width of the shape. First, we determine the dimensions of this figure. We do as follows:

Width = 12 - 2x - 2x = 12 - 4x
Length = 12 - x - x = 12 - 2x

Area = (Length)(Width)
Area = (12 - 2x )(12-2x)
3 0
2 years ago
A sculpture of a clothespin is 20 feet high. A normal clothespin of this shape is five inches high. Using this scale, how many f
kodGreya [7K]
This is the concept of scale factor. The linear scale factor is given by:
(height of sculpture)/(height of clothespin)
=20/(5/12)
=48
Given that a woman is 5ft 7 in, the sculpture of this woman would be:
height of sculpture=(scale factor)*(height of the woman)
height of the woman=5 ft 7 inches=5 7/12 ft=67/12 ft
hence the height of the sculpture will be:
67/12×48
=268 ft

Answer: 268 ft

7 0
2 years ago
Read 2 more answers
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