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2 years ago

What is x, the height of the tree?

Mathematics

2 answers:

Salsk061 [2.6K]2 years ago

6 0

Answer:

Step-by-step explanation:

Ratio between height and distance from point on ground :

9 ft / 6 ft
1.5

Taking ratio between x and 14 :

1.5 = x/14
x = 14 × 1.5
x = <u>21 feet</u>

QveST [7]2 years ago

4 0

Answer:

21 feet

Step-by-step explanation:

It increases by a rate of 2.33333333,we know this by doing 14 divided by 6. 9 x 2.33333333 is 21

(although this might be incorrect)

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Solve the quadratic equation 4x2 − 121 = 0. Verify your answer using a difference-of-squares factoring method.

Alenkasestr [34]

Answer:

Option d) is correct

That is x equals plus or minus start fraction 11 over two end fraction

Step-by-step explanation:

Given quadratic equation is $4x^2-121=0$

To write the given quadratic equation by using a difference-of-squares factoring method:

$4x^2-121=0$

The above equation can be written as

$4x^2-11^2=0$

$(2x)^2-11^2=0$

The above equation is in the form of difference-of-squares

Therefore the given quadratic equation can be written in the form of difference-of-squares

by factoring method is $(2x)^2-11^2=0$

$(2x+11)(2x-11)=0$ (which is in the form $a^2-b^2=(a+b)(a-b)$ )

2x+11=0 or 2x-11=0

$x=\frac{-11}{2}$ or $2x=11$

$x=\frac{-11}{2}$ or $x=\frac{11}{2}$

$x=\pm \frac{11}{2}$

Therefore option d) is correct

That is x equals plus or minus start fraction 11 over two end fraction

5 0

3 years ago

Please help me on this one help me solve it please

maw [93]

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7 0

3 years ago

Read 2 more answers

What inverse operation is used to solve the equation? x 2 = 10

Alla [95]

Answer:

Step-by-step explanation:

? x 2 = 10

/2 /2

? =5

6 0

3 years ago

Read 2 more answers

Which sequence of transformations maps quadrilateral ABCD onto quadrilateral EFGH?

Elanso [62]

Answer:

Step-by-step explanation:

When you dilate something by a fraction the quadrilateral is going to get smaller. So, we can eliminate 2 and 4. Next I took point A and dilated it by 1/2 and then applied the translation to it. Once I figured out where each one landed, the first one was correct because it was on point E of EFGH and the other translation was not.

4 0

3 years ago

WILL MARK BRAINLIEST AND 5 STARS ✨

poizon [28]

Answer:

11.25

Plan B as it is cheaper

Yes as in both equations the change in y repeats

(25,12.5)

(E I dont know how to do)

Step-by-step explanation:

22.50 divided by the slope

$0.1 < 0.5$

They cross each other on the graph at 25 texts and 12.50 dollars

3 0

4 years ago