the area of a rectangle is 54 cm. The length is 2 cm more than x and the width is 5 cm less than twice x. Slove for x. round your answer to the nearest whole number.
Answers
54=LW
L is 2 more than x L=2+x
w is 5 less than 2x W=-5+2x
54=LW
L=2+x
W=-5+2x
input
54=(2+x)(-5+2x)
distribute/FOIL
54=-10+4x-5x+2x^2
add like terms
54=-10-x+2x^2
minus 54
2x^2-x-64=0
quadratic formula
x=
x=
x=
x=
x=4.257 or -3.75
we disregard the negative one because that would make legnth and width negative
x=4 (rounded)
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What is the slope of the line that goes through (6,5) and (3,1)?Answers: A.3/4 B.-3/4 C.4/3 D.-4/3
Answers
Answer:
2.6875 or 2.6
Step-by-step explanation:
2.15÷.8=2.6875
5x + 9y = 6
Answers
5x + 9y = 6
5x − 20y = 35 //1st * 5
5x + 9y = 6
5x +9y - 5x + 20y = 6 - 35 //2nd - 1st
5x + 9y = 6
29y=-29
5x=6-9y
y=-1 //1st : 29
5x=6-9*(-1)
y=-1
x=15:5 //2nd : 5
y=-1
x=3
check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok
answer: (3;-1) represents the solution.
Answer:
It’s 3,-1
Step-by-step explanation:
You have to plug in the points u can use a calculator or work it by hand but I did it on the calculator and that’s what I got
Answers
Answer:
9, 10, 7, 5
Step-by-step explanation:
Step-by-step explanation:
(-4,5) and (6,4)
y2 - y1 / x2 - x1
4 - - 5/ 6 - - 4
4 + 5/ 6 + 4
y = 9/10x - 3/2
-3/2 or - 1.5 is the point where the line crossed the y-axis
Answers
Answers
The statement is False.
Right triangles don't all look the same.
When two triangles are similar, their corresponding angles and sides must be equal and proportional.
Although right triangles have the same attribute of having a single 90-degree angle, they might differ in their side lengths and angles, therefore they are not always comparable.
The relationship between a triangle's angles and side lengths determines how similar they are.
Only when the side lengths of two right triangles are proportionate and all of their angles, including the right angle, are congruent can two right triangles be said to be similar.
Hence the statement is false.
Learn more about similar triangles click;
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