MATHEMATICS HIGH SCHOOL

(1/4x)-2= x2

complete the equation ​

Answers

Answer 1
Answer:

-1

1/4×-2= -2/4 -2/4×2/1= -1

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Find the equation of the line that passes through the point (7,5) and is perpendicular to the line 2x - 3y=6

Answers

(7,5);\ \ \ \ 2x - 3y=6 \ \ / subtract \ 2x \ from \ each \ side \n \n-3y = -2x + 6\ \ / divide \ each \term \ by \ (-3) \n \n y = \frac{2} {3}x -2\n \n The \ slope \ is :m _(1) = ( 2)/(3) \n \n If \ m_(1) \ and \ m _(2) \ are \ the \ gradients \ of \ two \ perpendicular \n \n lines \ we \ have \n\n\ m _(1)*m _(2) = -1

(2)/(3)\cdot m_(2)=-1\ \ / \cdot ((3)/(2))\n\nm_(2)=-(3)/(2)\n\nNow \ your \ equation \ of \ line \ passing \ through \ (7,5) would \ be: \n \n y=m_(2)x+b \n \n5=-(3)/(2)\cdot 7 + b \n \n 5= -(21)/(2)+b\n \nb=5+(21)/(2) \n \nb= (10)/(2)+(21)/(2)\n \nb= (31)/(2)\n\nb=15.5 \n \n y = -(3)/(2)x +15.5

PLZ HELP URGENT!!!!!!!!!f(x) = -3x2 + 2x - 7


f(-1) =

A) -12
B) -8
C) -6
D) 0

Answers

Is that - 3x times 2?

Question 7
X-9= -6
What is X

Answers

the answer to this question is x=3

A tree casts a shadow 10 ft long. A boy standing next to the tree casts a shadow 2.5 ft long. The triangle shown for the tree and its shadow is similar to the triangle shown for the boy and his shadow. If the boy is 5 ft tall, how tall is the tree?

Answers

The tree will be 10ft tall if u multiply than divide

Ericka and her friends are at the fair. She has $50 to spend. If admission to the fair is $15 and each ride costs $2 to ride.

Answers

Answer:

I guess we're looking for how many ridesshe can do

she's $50 admission is $15 each ride is $2

(50-15)/2=17.5 it can make 17 rides maximum

Step-by-step explanation:

how many triangles are formed by the diagonal from one vertex in quadrilateral, hexagon, octagon, and decagon??!

Answers

Quadrilateral: two (you can only trace one diagonal and it forms two triangles)

Hexagon: four (you can trace thre diagonals and four triangles are formed)

Octagon: six (you can trace five diagonals and six triangles are formed)

Degagon: eight (you can trace seven diagonals and eight triangles are formed)

It is always true that the number of triangles you can form from a vertex in a convex polygon is the number of sides minus 2.
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