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Fittoniya [83]
3 years ago
14

Can someone help me with this please ?

Mathematics
1 answer:
katrin [286]3 years ago
4 0

Answer:

Step-by-step explanation:

∠EMC  = ∠EMD + ∠DMC

∠EMC = 90

∠EMD + ∠DMC = 90

∠EMD + 20 =90

∠EMD  = 90 - 20

∠EMD  = 70

∠FMD + ∠DMB = 180  {Linear pair}

90 + ∠DMB = 180

        ∠DMB = 180 - 90

       ∠DMB = 90

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Write an equation of a line containing (2, -3) and perpendicular to 3x+4y=14 answer
Sergio039 [100]

Answer:

Step-by-step explanation:

From the condition of perpendicularity, if two lines must be perpendicular to each other, the product of their gradient rather the slope must be equaled to ( -1 ).

Equation of a line ; y = mx+ c, where m1 is the gradient of the line and c us the point of intersection if the line on the y- axis.therefore, the equation

3x + 4y = 14, when re arranged, now becomes, 4y = -3x + 14, divide through by 4, gives, y = -3x/4 + 14.

Therefore, m1, = -3/4 and m2, = 4/3 going by the condition. Since the line passes through the coordinate of (2,3), where x = 2, and y = -3, then, substitute for x and y in y = mx+ c, minding the m2, to find C, therefore,

-3 = 4/3x2 + c. -3 = 8/3 +c

Multiply through by 3 to make it a linear equation,

-9 = 8 + 3c; -9 - 8 = 3c, -17= 3c

c = -17/3.Now substitute for c in the equation ,y = mx+ c, the equation now becomes, y = 4x/3 - 17/3. Therefore the new equation is

3y = -4x - 17.

7 0
3 years ago
Your school raised 125% of its fundraising goal. The school raised $6750. What was the goal?
zheka24 [161]
<span>Total goal = 6750:125 x 100 = 5400

Hope this helped! </span>
5 0
4 years ago
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How can postulates and theorems relating to similar
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4 0
3 years ago
a forest ranger correctly rounded the number of visitors to a park to be 120,000 write a number that could be the actual number
Andre45 [30]

Answer: this isnt of my own, autor of the answer was brainly.com/app/profile/14278780/answers

124,000 can be the actual number

Step-by-step explanation:

* Lets explain how to solve the number

- The number of visitors to the park is 120,000 visitors rounded

 to the nearest ten thousands

- The round to nearest digit means look to the digit before this

digit if < 5 we put all the digits before the rounded digit zero and

keep it as it, if the number before the rounded digit is ≥ 5 we put

all the digits before the rounded digit zero and add the rounded

digit by 1

- Ex:

# To round 12,345 to the nearest thousand look to the hundred

 digit (3), 3 < 5 , then the rounded number is 12,000  

# To round 12,745 to the nearest thousand look to the hundred

 digit (7), 7 > 5 , then the rounded number is 13,000  

- To find the actual number lets do these steps

1. Divide the ten thousands by 2

∵ 10,000 ÷ 2 = 5,000

2. Add the result and subtract the result from the rounded number

∵ 120,000 - 5000 = 115,000

∵ 120,000 + 5000 = 125,500

3. The actual number is between these two numbers

∴ 115,000 ≤ actual number < 125,000

- Remember:  we can not take the number 125,000 as the actual

number because when we round it to the nearest ten thousand

the answer will be 130,000

∴ You can chose any numbers belongs to this range

* I will chose 124,000 can be the actual number

8 0
3 years ago
1) Anna solved the given equation. Is the solution correct? If not, determine the correct solution. x − 125 = 234 x = 125 + 234
kari74 [83]

Answer:

B) Incorrect ; 359

Step-by-step explanation:

x - 125 = 234

x = 234 + 125 = 359

x = 125 + 234 = 359

6 0
4 years ago
Read 2 more answers
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