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3 years ago

!!!!!!! Why isn't A the correct answer? I am having trouble to reason why A is wrong so please help if can!

Mathematics

1 answer:

docker41 [41]3 years ago

4 0

Answer:

d. x = -3

Step-by-step explanation:

$\sqrt{(x + 3)}$ ÷ (x+8)(x-2) = 0

f(x) / g(x) = 0

Variable x cannot be equal to any of the values −8,2 since division by zero is not defined. Multiply both sides of the equation by (x−2)(x+8).

$\sqrt{(x + 3)}$ = 0 ------ square both sides

x + 3 = 0

solve for x:

x = -3

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4) (Assume AR is tangent) Given: AR 12 SR - 7.7 Find: cs (Round to nearest tenth.)

andreev551 [17]

The length of CS is 11.0

Explanation:

Given that the length of the tangent AR is 12

The length of SR is 7.7

To find: The length of CS

The tangent secant theorem states that "if a tangent and a secant are drawn from an external point to a circle, then the square of the measure of the tangent is equal to the product of the measures of the secant’s external part and the entire secant."

Applying the tangent secant theorem, we have,

$AR^2=SR\times RC$

Rewriting the above equation, we get,

$AR^2=SR(SR+SC)$

Substituting the values, we get,

$12^2=7.7(7.7+CS)$

Simplifying, we have,

$144=59.29+7.7CS$

Subtracting both sides by 59.29, we get,

$84.71=7.7CS$

Dividing both sides by 7.7, we have,

$11.0013=CS$

Rounding off to the nearest tenth, we get,

$11.0=CS$

Thus, the length of CS is 11.0

6 0

3 years ago

12) A candy company used 8 gallons of syrup to make 4 batches of candy. What is the rate of syrup per batch?

Black_prince [1.1K]

The answer is 2 gallons of syrup per batch.

3 0

3 years ago

Hank the savings account in June of 2002 on June 2006 and $3,800 on June 2014 he had $8,600 if hanks saving is modeled by linear

beks73 [17]

12400 is the answer. Have a good day

5 0

3 years ago

A tree is broken at a height of 5 m from the ground and its top touches the ground at a distance of 12 m from the base of the tr

frozen [14]

Answer:

The original height of the tree is 18 m.

Step-by-step explanation:

Please see attached photo for explanation.

From the diagram, we shall determine the value of 'x'. This can be obtained by using the pythagoras theory as follow:

x² = 5² + 12²

x² = 25 + 144

x² = 169

Take the square root of both side

x = √169

x = 13 m

Finally, we shall determine the original height of the tree. This can be obtained as follow.

From the question given above, the tree was broken from a height of 5 m from the ground which form a right angle triangle with x being the Hypothenus as illustrated in the diagram.

Thus, the original height of the will be the sum of 5 and x i.e

Height = 5 + x

x = 13 m

Height = 5 + 13

Height = 18 m

Therefore, the original height of the tree is 18 m.

3 0

3 years ago

WILL MARK BRAINLIEST in detail, what would you do in order to graph y = 3x -5

Hunter-Best [27]

So first, you need to identify the parts of this equation.

3x is the slope of the line, which is $\frac{3}{1}$ .

-5 is the y-intercept. or the part of the line that touches the y-axis.

The first thing you want to do is plot the y-intercept. SO, go to the y-axis and find -5. Plot your point there.

Now, use the slope $\frac{3}{1}$ to find your next plot. Since slope is $\frac{rise}{run}$ , you go up three, and over to the right one.

Now, draw a line connecting the dots. Your slope should be positive and look like > /

~theLocoCoco

5 0

3 years ago