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3 years ago

HELPPPPPPPPPPPPPPPPPPPPPP

Mathematics

1 answer:

scoray [572]3 years ago

4 0

Answer:

x= 24, y= 33°

Step-by-step explanation:

MJ is part of the diameter of the circle and there is right angle between the diameter and HK

As the diameter and HK are perpendicular, HM=MK and mHJ= mJK

So,

x= 24

and

y= 66°/2= 33°

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I need help with this question

alex41 [277]

Since the triangle is cut in half, I’m guessing it’s 22.5

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3 years ago

A number increased by a% and decreased by 80% is 400. What is the number?

vladimir2022 [97]

Answer:

If we have a given number N, and we increase it by x%, then the new number is:

N + (x%/100%)*N

While if we decrease it by x%, the new number will be:

N - (x%/100%)*N

Now, we know that:

"A number increased by a% and decreased by 80% is 400. What is the number?"

First, we can not solve the problem, because we have two unknown values, the original number and the "a%", which I guess is a typo.

So, to be general with my answer, let's assume that the actual question is:

"A number increased by 50% and decreased by 80% is 400. What is the number?"

Then, if our original number is N and we increase it by 50%, the new number will be:

N + N*(50%/100%)

N + N*0.5

N*(1 + 0.5)

N*(1.5)

Now we decrease it by 80%, and that will be equal to 400, then:

N*1.5 - N*(1.5)*(80%/100%) = 400

N*1.5 - N*1.5*0.8 = 400

N*(1.5 - 1.5*0.8) = 400

N*(0.3) = 400

N = 400/0.3 = 1,333.33...

Remember that this is a kinda general solution, so you can understand how to solve this type of problem.

4 0

3 years ago

HELLPPPPPP PLEASE I'LL GIVE BRAINLEST

kifflom [539]

Answer:

Angle A would be 40°

Step-by-step explanation:

The sum of all angles of a triangle is 180° always.

So, the sum of 80° , 11x - 4 and 15x would be 180°

80° + 11x - 4 + 15x = 180°

80 - 4 + 11x + 15x = 180°

76 + 26x = 180

26x = 104

x = $\frac{104}{26}$

x = 4

Since angle A is 11x - 4, its measure would be

(11 x 4) - 4

44 - 4

40.

6 0

3 years ago

Read 2 more answers

Find the value of x.<br> X =

Paladinen [302]

Answer:

X = 20

Step-by-step explanation:

when you have an angle that looks like an X shape the angles opposite each other are always equal. knowing this we now know that angle 5x must equal 100

so just make X the subject of the formula and solve, like shown bellow

$5x = 100$

$x = 100 \div 5$

$x = 20$

6 0

3 years ago

Translate this phrase into an algebraic expression.

labwork [276]

Answer: 2y - 49

Step-by-step explanation:

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3 years ago