She needs to score 90 points on her next test
79+61+54+90=284
284/4=71
Answer:
see explanation
Step-by-step explanation:
the equation of a line in slope-intercept form is
y = mx + c ( m is the slope and c the y-intercept )
(1)
y = 3x + 4 is in this form
with slope m = 3 and y-intercept c = 4
(2)
y = - x - is in this form
with slope m = - and y-in tercept c = -
(3)
rearrange 3x + y = - 4 into slope-intercept form
subtract 3x from both sides
y = - 3x - 4 ← in slope-intercept form
with slope m = - 3 and y-intercept c = - 4
The sum of the interior angles of any quadrilateral is 360°.
So,
90° + 90° + 52° + x = 360°
=> 232° + x = 360°
=> x = 360° - 232°
=> x = 128°
The height h above ground in feet of a ball dropped from the top of a 30 foot tall building after t seconds is given by the polynomial: h(t)= -16t^2+30. what is the height of the ball after 1/2 second?
h(t)= -16t^2+30
--
Sub 1/2 for t to find h(1/2)
Answer:
D
Step-by-step explanation:
Using trigonometric ratios in the right triangle
tan45° = 1 and cos45° =
tan45° = =
Multiply both sides by 7
7 × tan45° = b, that is
b = 7 × 1 = 7
--------------------------------------------------------
cos45° = =
Multiply both sides by a
a × cos45° = 7, that is
a × = 7
Multiply both sides by
a = 7