Can you help me please

Mathematics

2 answers:

sleet_krkn [62]3 years ago

8 0

For letter A the greatest common factor would be 8

for letter B the least common factor would be 280 i believe.

VladimirAG [237]3 years ago

3 0

Okay one moment i will have the answer soon...

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What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? Drag and drop the values into the

quester [9]

Answer:

.25 .75

.44 .56

Step-by-step explanation:

To find the relative frequency, we take the part over the total.

Since this is a relative frequency table, the total for each row is 1

Group 1 A = 15/ (15+45) = 15/60 = .25

Group 1 B = 45/(15+45) = 45/60 = .75

Group 2 A = 20 /(20+25) = 20/45 =.44

Group 2B = 25/(20+25) = 25/45 =.56

8 0

3 years ago

Use division to determine whether the ratios form a proportion.

Leya [2.2K]

A. yes. they form a proportion
1/4 and 6/24

6/24=1/4
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3 0

3 years ago

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A student solved a quadratic equation as shown here:

djverab [1.8K]

Answer:

x = 3/2 or x = -4

Step-by-step explanation:

The identifiable error the students have is that before the left hand side of the equation is factorized, the right hand side value of 12 ought to be brought to the left hand side, leaving a net value of zero on the right hand side. Then whatever is factored on the left hand side is then equated to zero and then we can find the two values of x after setting each of the individual factors to zero

We proceed as follows;

$2x^{2} + 5x = 12\\2x^{2} + 5x - 12 = 0\\2x^{2} + 8x -3x -12 = 0\\2x(x+4) -3(x+4) = 0\\(2x-3)(x+4) = 0\\2x-3 = 0 or x+4 =0\\2x=3 or x=-4\\x = 3/2 or x= -4\\x = 1.5 or- 4$

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3 years ago

Wendy is standing 60 feet away from a tree. Her eyes are 5 feet above the ground. She sees a bird hovering above a tree. The ang

Gennadij [26K]

The bird is 17 feet above the tree.

<u>Explanation:</u>

We need to think of this in terms of right triangles. If Wendy is 60 feet from a tree, the base of the right triangle is 60 feet. The height of the tree is the height of the right triangle. The angle of elevation is the one from the ground at her feet to the top of the tree and then to the bird. Let's start with the top of the tree first.

She's 60 feet away, we have the angle of elevation as 25 degrees, and we are looking for the height of the tree. In regards to the angle, the base of 60 is adjacent, and the height of the tree is opposite. The tangent ratio is height / base.

Let x be the height of the tree.

So,

$tan (25) = \frac{x}{60}$