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4 years ago

MATH HELP PLEASE WILL GIVE BRAINLIEST

1 answer:

8 0

1. 10
2. 5√2 in
1. The ratio for a 30-60-90 triangle is x:x√3:2x
x is the shortest leg so 2*x =2*5 = 10
2. the ratio of a 45-45-90 triangle is x:x:x√2
x is one leg so x * √2 = 5*√2 = 5√2

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Evaluate x+y when x=13 and y=−74. Write your answer as a fractionin simplest form

Fofino [41]

The value of the expression is -35.

Step-by-step explanation:

Consider the provided expression.

3x + y 

We need to find the value of the expression for x=13 and y=−74 .

Substitute the value of x=13 and y=−74 in the above expression as shown:

3 (13) + (-74)

39 - 74 

-35

 the value of the expression is -35.

6 0

3 years ago

A circle has a circumference of 9π what is the diameter?

mixas84 [53]

C=πd where C=circumference, π=the constant pi, and d=diamter

d=C/π and since we are told that C=9π

d=9π/π

d=9

7 0

3 years ago

A recipe requires ¾ cup of nuts for 1 batch of muffins. Write the number of batches of muffins that can be made using 7 ½ cups o

Ivahew [28]

Answer:

10 batches

Step-by-step explanation:

3/4 cups = 1 muffins

15/2 cups = x muffins

For x muffins,

3/4 × X = 15/2 × 1

3x × 2 = 15×4

6x = 60

Divide both sides by 6

6x/6 = 60/6

X = 10

Hence 10 batches of muffins will be made from 15/2 cups of nuts.

8 0

3 years ago

For which of the following equations are x = 5 and x = –5 both solutions?

Minchanka [31]

Short Answer B
Argument
A
A will give you x = +/- 5i
x^2 + 25 = 0
x^2 = - 25 Take the square root.
sqrt(x^2) = +/- sqrt(-25)
x = +/- (5)i which is a complex number.

B
Is the answer
x^2 = 25
sqrt(x)^2 = sqrt(25)
x = +/- 5

C
Can't be factored just by looking at it. You can show that C is not true just by putting 5 into the equation
f(x) = x^2 + 10x - 25
f(5) = 25 + 10*5 - 25
f(5) = 50
C is not true.

D
D can be eliminated as C was
f(x) = x^2 - 5x - 25
f(5) = -25 ( l'll let you show this is not true). 5 is not a solution because it does not make f(x) = 0

6 0

3 years ago

Read 2 more answers

Helppppppppppppppppppppppppppp

natita [175]

Answer:

1. 302.1 ÷ 5 can be rewritten as 181.26 ÷ 3

2. 12.15 ÷ 0.02 can be rewritten as 2430 ÷ 4

3. 1.375 ÷ 0.11 can be rewritten as 75 ÷ 6

Step-by-step explanation:

Hope this helps!

8 0

3 years ago