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Yakvenalex [24]
3 years ago
11

Solve the equation x^2 = -8x-7 by factoring

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
8 0

Answer:

x = -7 and -1

Step-by-step explanation:

Move the right side of the equation over to the left;

x^2+8x+7 = 0; Factor

(x+7)(x+1)=0 ; Solve for x;

x = -7 and -1

Lostsunrise [7]3 years ago
3 0

Answer:

x= -1,-7                

Step by step:

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Alice’s chicken coop (cage) has a total volume of 742 cubic feet (ft3). Use the fact that 1 foot is approximately equal to 0.304
skelet666 [1.2K]

Answer:

21.01 cubic metres

Step-by-step explanation:

We have to find the value of 1 cubic foot and then convert to cubic metre.

1 foot = 0.3048 m

1 cubic foot = (0.3048)^3 = 0.02832 cubic metre

A volume of 742 cubic foot will therefore be:

742 * 0.02832 = 21.01 cubic metres

The volume in cubic metres is 21.01 cubic metres

5 0
4 years ago
The total surface area of a right circular cylinder is 84 pie cm square and the altitude is 11 cm .find the radius of the base​
djyliett [7]

Answer:

use the formula r = square root of (V / (pi x h))

8 0
3 years ago
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A data set includes the following grades: 98, 94, 93, 82, 61, 80. Suppose that 61 is removed from the data. How is the median af
puteri [66]

Answer:

<u>If we remove 61 from the data set, the median changes from 87.5 to 93.</u>

Step-by-step explanation:

1. Let's calculate the median of the original data set:

Median = (3rd term + 4th term)/2 because the number of terms are even and our median mark is the average of the two middle marks, in this case, 82 and 93.

Median = (82 + 93)/2

Median = 87.5

2. Let's calculate the median of the data set removing 61:

Median = 3rd term because our median mark is the middle mark, in this case, 93. It is the middle mark because there are 2 scores before it (80 and 82) and 2 scores (94 and 98) after it.

Median = 93

7 0
3 years ago
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Round 0.9874 to the greatest non zero place
Anna71 [15]
0.9874 the greatest non zero place is 9 but the nearest digit is 8 when you round it off to 0.9 the answer becomes 1.0
0.9874~1.0
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