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4 years ago

Please answer this correctly

Mathematics

2 answers:

Oxana [17]4 years ago

5 0

Answer:

1-20: Make it 0 units tall (change nothing)

21-40: Make it 1 unit tall

41-60: Make it 3 units tall

61-80: Make it 2 units tall

81-100: Make it 2 units tall

Step-by-step explanation:

1-20: (0 numbers)

21-40: 33 (1 number)

41-60: 43, 44, 52 (3 numbers)

61-80: 75, 79 (2 numbers)

81-100: 86, 89 (2 numbers)

Ratling [72]4 years ago

4 0

Answer: 0 in the 1-20 range, 1 in the 21-40 range, 3 in the 41-60 range, 2 in the 61-80 range, and 2 in the 81-100 range.

Explanation:

No change, 0 in the 1-20 range

33: 1 in the 21-40 range

43, 44, 52: 3 in the 41-60 range

75, 79: 2 in the 61-80 range

86, 89: 2 in the 81-100 range.

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3 years ago

Given m||n, find the value of x.<br> +<br> (5x+2)<br> (4x+6)°

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The required value of x is 4.

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3 years ago

PLEASE FIND THE VERTEX OF THIS PARABOLA

yarga [219]

Given equation of the parabola y= -5x^2 -10x -13.

We need to apply formla for x-coordinate of the vertex.

x=-b/2a.

For the given equation we have a=-5 and b=-10.

Plugging values of a and b in formula of x-coordinate of the vertex.

x= -(-10)/2(-5)

x= 10/(-10) = -1.

So, we got x-coordinate of the vertex = -1.

Now, we need to plug x=-1 in given equation to find the y-coordinate of the vertex.

Plugging x=-1 in y= -5x^2 -10x -13, equation we get

y=-5(-1)^2-10(-1)-13.

y= -5(1) +10 -13.

y=-5 +10-13.

y=-18+10.

y=-8.

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3 0

3 years ago

The eastern continental trail is 15 times longer than the Erie canal way trail. The combined length of the hiking trails is 5,76

Lena [83]

The length of eastern continental trail is 5400 miles and length of erie canal trail is 360 miles.

Step-by-step explanation:

Given,

Combined length of both trails = 5760 miles

Let,

x be the length of eatern continental trail.

y be the length of Erie canal trail.

According to given statement;

x+y=5760 Eqn 1

x = 15y Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$15y+y=5760\\16y=5760$

Dividing both sides by 16

$\frac{16y}{16}=\frac{5760}{16}\\y=360\\$

Putting y=360 in Eqn 2

$x=15(360)\\x=5400$

The length of eastern continental trail is 5400 miles and length of erie canal trail is 360 miles.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

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3 years ago

A painting is 4 feet long.A photo frame is 10 inches long.How many inches longer is the painting then the photo frame?

Galina-37 [17]

Change 4 feet to inches
4 feet is 48 inches
48-10=38

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3 years ago