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Damm [24]
3 years ago
10

NEED THE ANSWER ASAP PLEASE

Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

y = 5

Step-by-step explanation:

The equation of a horizontal line is

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through (- 2, 5) with y- coordinate 5, thus

y = 5 ← equation of horizontal line

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A recipe calls for 3 cups of sugar and 9 cups of water. How many cups of water should be used with 2 cups of sugar? Emily is ent
TiliK225 [7]

Answer:

6 cups

Step-by-step explanation:

3/9 = 2/w

Cross multiply.

3w = 18

w = 6 cups of water

5 0
3 years ago
Which expression is equivalent to the polynomial x2-x-6
OLEGan [10]

Answer:

(x - 2)(x + 3)

Step-by-step explanation:

The given polynomial is

{x}^{2}  - x - 6

The factors of -6 that sums up to -1 are -3,2.

We split the middle term to obtain:

{x}^{2}  -3 x + 2x - 6

We factor to get:

x(x - 3) + 2(x - 3)

We factor further to get:

(x - 3)(x + 2)

The polynomial is equivalent to:

(x - 3)( x + 2)

3 0
4 years ago
6. A ship is on the surface of the water, and its radar detects a submarine at a distance of
Minchanka [31]

Answer:

the submarine is 92.994 feet ≈ 93 feet deep from the surface of the water

Step-by-step explanation:

We can think in a triangle where the hypotenuse is the detection distance and the angle with the horizontal surface of water is the depression angle, then the underwater distance is the vertical side of the triangle.

If we denote Ф  as the angle of depression ,d as the detection distance and x as the unknown depth of the submarine, using trigonometry:

x = d* sin Ф

thus

x=  d * sin Ф = 238 feet * sin 23° = 92.994 feet ≈ 93 feet

7 0
3 years ago
Which quadratic equation fits the data in the table? (PICTURE OF TABLE ATTACHED)
Paha777 [63]
The correct quadratic equation for that set of points is:
y=x^2+7x+1

To check it, simply put first and last pair of points and assure the equality:
-11=(-3)^2+7*(-3)+1
-11=9-21+1
-11=-11

79=6^2+7*6+1
79=36+42+1
79=79
5 0
4 years ago
Cory has 15 die-cast cars in his collection. Each year his collection increases by 20%. Roger has 40 cars in his collection. Eac
solmaris [256]
Cory gains 3 cars a year and Roger 1. 
Cory - 18 (6 x 3) : Roger - 6 (6 x 1)
I Cory was to stop receiving cars for 3 years, while Roger kept getting them for 3 then they would have the same amount. 

4 0
4 years ago
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