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Klio2033 [76]
3 years ago
15

If c = 30 and d = 8, then 2c + 4d = A) 512 B) 278 C) 136 D) 92

Mathematics
2 answers:
geniusboy [140]3 years ago
8 0
The answer to the problem is D. :)
IRISSAK [1]3 years ago
5 0
So since c= 30 u do 2 times 30 which is 60 then since d=8 u do 4 times 8 which equals 32 then add 60 and 32 which is 92 so the answer is 

ANSWER: D.92
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Find the distance between the points given. (0,5) and (-5,0)
galina1969 [7]

Answer:

5\sqrt{2}

Step-by-step explanation:

Calculate the distance between the points using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (0, 5) and (x₂, y₂ ) = (- 5, 0)

d = \sqrt{(-5-0)^2+(0-5)^2}

  = \sqrt{(-5)^2+(-5)^2}

  = \sqrt{25+25} = \sqrt{50} = 5\sqrt{2} ← exact value

5 0
3 years ago
The area of a rectangle is represented by x^2- 7x + 10. What are the missing side lengths of the rectangle?
ladessa [460]
Length = x - 2
Width = x - 5

Explanation:

Area = x^2 - 7x + 10
Area = (x - 2)(x - 5)
Area = Length x Width

Length = x - 2
Width = x - 5
4 0
3 years ago
A survey of 7th graders at Sandy Middle School found that 152 students were enrolled in Art classes and 44 of those students are
sammy [17]

Answer:

354

Step-by-step explanation:

44+310=354. ejeihrbebeh

5 0
3 years ago
I might kinda go to summer school so help?
bearhunter [10]

Answer:

I think it is A

Step-by-step explanation:

ust remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter.

8 0
3 years ago
Read 2 more answers
PLS HALP I'm stuck on number 31
Marta_Voda [28]
There are 2 possibilities for where A can be: one where C is 30° (and A is 60°) and another where C is 60° (and A is 30°). Since it's not specified, we can find both.

30°:
drawing the triangle on a graph, you can see that point C is 4 units above point B, so we know that one side of the triangle is 4. Once we find the other "leg" of the triangle (the one that's parallel to the x-axis), we can just add that value to B to find the x coordinate of A.
If angle C is 30°, using the side ratios of a 30-60-90 triangle, that side is "a√3", and the side we're looking for is a. So, to find a, we just divide 4 by √3. In that case, point A is 4/(√3) units to the right of -2√3. We can rationalize 4/(√3) like this:

(4√3)/3

and then add that to 2√3:

(4√3)/3 + -2√3

(4√3)/3 + (-6√3)/3 = (-2√3)/3

We know that the x-coordinate of A is (-2√3)/3, and the y-coordinate is -1 because B is a right angle and we're just moving horizontally. So, if C is 30° and A is 60°, point A is at ((-2√3)/3, -1).

60°:
in this case, the leg we know is "a" and the leg we're looking for is "a√3". So, we can multiply 4 by √3 to get the distance from B:

4 x √3 = 4√3

4√3 + -2√3 = 2√3

So the x-coordinate of A here is 2√3, and the y-coordinate is still -1: (2√3, -1).

hope that helps! if you liked this answer please rate it as brainliest!! thank you!!!

8 0
3 years ago
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