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kvv77 [185]
2 years ago
5

Find X (30,60,90) need help asap asap

Mathematics
1 answer:
Shtirlitz [24]2 years ago
3 0

Answer:

The correct answer will be X = 4

Step-by-step explanation:

Using Pythagoras

AB^2 + BC^2 = AC^2

2^2 + (2√3)^2 = AC^2

4 + (4*3) = AC^2

4+12 = AC ^ 2

AC ^2 = 16

AC = √16 = 4

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An educator wants to see how the number of absences for a student in her class affects the student’s final grade. The data obtai
Vinvika [58]

Answer:

Simple linear equation is :

Y = 86.784 - 2.67x

Step-by-step explanation:

The educator wants to see the relationship between no of absences and final grades of the student. No. of absence of student is independent variable while final grade is dependent variable. The final grades of the student are dependent on the no. of absence they do.

b = Sxy / Sxx

b =  { 2312 [ 37 * 422 ] / 6 } / 337 - 37^2 / 6 = -2.67

a = -2.67 * 37/6 = 86.784

5 0
2 years ago
Which of the points listed is the same distance from the y-axis as the point (−1.5, 6)?
Volgvan
The complete question in the attached figure

we know that
<span>the distance from a point to line (y-axis) is the perpendicular line against y-axis, which is the absolute value of x-coordinates
</span>
in this problem
the point <span>(−1.5, 6)
the </span>absolute value of x-coordinates is 1.5
hence 
the distance is 1.5

therefore

the answer is
the option B) the point (1.5,-3)

7 0
3 years ago
A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s heigh
Nataly_w [17]

Answer D). 9 ft is correct

Height of the ball at a horizontal distance of 10 feet is 9 ft

Step-by-step explanation:

A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s height (y).

Y(x) = -0.02x^{2} +0.8x+3

Question asked is " What will be height (Y) of the ball when X=10 ft "

Simply putting value of X in given equation

we get,

Y(x) = -0.02x^{2} +0.8x+3

Y(x) = -0.02(10)^{2} +0.8(10)+3

Y(x) = -0.02(100)} +8+3

Y(x) = -2 +8+3

Y(x) = 9

<em>Therefore,</em> Height of the ball at a horizontal distance of 10 feet is 9 ft

Answer D.  9 ft is correct

6 0
3 years ago
The drama club has sold 942 tickets to their play if their theater seats 57 in each row how many full rows were there be how man
kotegsom [21]
999 if you are adding
8 0
2 years ago
Perimeter of a square that measures 5.35 cm on one side
Kitty [74]

Answer:

Perimeter of a square that measure 5.35 on one side is, 21.4 cm

Step-by-step explanation:

Perimeter of a square is the total length of the boundary of a square.

It is given by:

P = 4a ......[1] where

P represents the perimeter of square,

a represents the side of square.

Given: a = 5.35 cm

Substitute this value in [1] we get;

P = 4(5.35) = 21.4 cm

therefore, the perimeter of a square is, 21.4 cm

6 0
3 years ago
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