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RideAnS [48]
4 years ago
10

I REALLY NEED HELP WITH THIS, FIRST ONE ANSWER THIS QUESTION RIGHT, WILL GET BRAINLIST! :)

Mathematics
2 answers:
artcher [175]4 years ago
5 0
42 i finished my test and 42 was the correct answer.
Maru [420]4 years ago
3 0
The first quartile (Q1) is visually represented as the left most edge of the box. In this case, the left most edge is at 42 which is why Q1 = 42.

The first quartile is 42

The answer is choice D) 42
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If side A is twice as long as B and C is 25 using the Pythagorean Theorem,What are the lengths of side A and B? Round to the nea
777dan777 [17]

Answer:

<u>The lengths of side A is 22.4 and B is 11.9</u>.

Step-by-step explanation:

Given:

If side A is twice as long as B and C is 25 using the Pythagorean Theorem.

Now, to find the lengths of side A and B.

Let the side B be x.

So, the side A be 2x.

Side C = 25.

Now, to solve by using Pythagorean Theorem:

A² + B² = C²

(2x)^2+(x)^2=(25)^2

4x^2+x^2=625

5x^2=625

<em>Dividing both sides by 5 we get:</em>

x^2=125

<em>Using square root on both sides we get:</em>

x=11.18.

<u>B rounding to the nearest tenth =  11.9.</u>

Now, to get A by substituting the value of x:

2x\\=2\times 11.18\\=22.36.

<u>A rounding to the nearest tenth =  22.4.</u>

Therefore, the lengths of side A is 22.4 and B is 11.9.

8 0
3 years ago
Most quadratic equations have______roots?
ElenaW [278]

Answer:

equal

Step-by-step explanation:

Most quadratic equations have <em>equal</em> roots.

5 0
3 years ago
In parallelogram DEFG, DH = x + 5, HF = 2y, GH = 4x-3 and HE = 4y + 1. Find the values of x and y. The diagram is not drawn to s
GalinKa [24]
Rule: The diagonals of any parallelogram bisect each other. In other words, they cut each other in half.

This means DF is cut into two equal pieces: DH and HF.
Similarly, GE is cut into two equal pieces: GH and HE.

DH = HF
x+5 = 2y
x = 2y-5

GH = HE
4x-3 = 4y+1
4(x)-3 = 4y+1
4(2y-5)-3 = 4y+1 ... x has been replaced with 2y-5
8y-20-3 = 4y+1
8y-23 = 4y+1
8y-4y = 1+23
4y = 24
y = 6

If y = 6, then x is
x = 2y-5
x = 2(6)-5
x = 12-5
x = 7

--------------------------------------------

Answers: 
x = 7 and y = 6

5 0
3 years ago
A rectangular box is to have a square base and a volume of 70 ft3. The material for the base costs 38¢/ft2, the material for the
lakkis [162]
x-length\ of\ one\ side\ of\ base\\y-high\ of\ box\\x^2-area\ of\ base\\x^2y-volume\\\\x^2y=70\\y=\frac{70}{x^2}\ \ \ \ \ \ \ \ and\ x\neq0\\\\38x^2+4\cdot10xy+27x^2\\65x^2+40xy\ in\ cents\\\\0.65x^2+0.4xy\ in\ dollars
3 0
3 years ago
The expression below is the factorization of what trinomial (5x+6)(3x-2)
Wittaler [7]
Multiply 5x to 3x and -2
multiply 6 to 3x and -2
15x^2-10x+18x-12

15x^2+8x-12
6 0
4 years ago
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