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user100 [1]
3 years ago
8

Please Help I Will Give Brainliest!

Mathematics
2 answers:
Anika [276]3 years ago
8 0
(9, -6)
This is very simple math. Needs no explanation, however this site requires an explanation for something so simple.<span />
Deffense [45]3 years ago
7 0
(1) I'm pretty sure that answer is 1 to 25
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Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Make sure to simplify radicals. Leave your answer
Jobisdone [24]
N = 50√3
m = 5√2
just use trigonometry

6 0
3 years ago
Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70 degree angle
LuckyWell [14K]
Assuming the house is parallel to the ground, your triangle is made up by the house, the ground, and the ladder. Using sin(x) = opposite/hypotenuse on the angle 70 degrees, you would have sin(70) = 20/x (because 20 is the side opposite of the angle connecting the ladder and the ground)
--> simplify sin(70) * x = 20 --> x = 20 / sin(70 
--> substitute (and make sure your calculator in in degrees) x= 21. 284
7 0
4 years ago
Identify the variable(s), set up your equation(s), and solve. Richard has an elder sister who is twice his age and a younger sis
alexdok [17]

Answer:

7 years

Step-by-step explanation:

Given that:

Let Richard's age = x

Elder sister's age = 2x

Youngwr sister's age = x - 2

Product of sisters ages = 70

2x * (x - 2) = 70

2x² - 4x = 70

2x² - 4x - 70 = 0

x² - 2x - 35 = 0

x² - 7x + 5x - 35 = 0

x(x - 7) +5(x - 7) = 0

(x - 7) or (x + 5) = 0

x = 7 or x = - 5

X can't be negative

Hence, x = 7

Richard is 7 years

3 0
3 years ago
What is 6.25% into 261
natta225 [31]
13.5 hope this helps
7 0
3 years ago
How do you calculate the volume for this shape
Bingel [31]

Answer:

The formula A=12bh is used to find the area of the top and bases triangular faces, A= area, b= base, and h= height. The formula A=lw is used to find the area of the three retangular side faces, A= area, l= lenght, and w= width

Step-by-step explanation:

3 0
3 years ago
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