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4 years ago

Plz help me well mark brainliest if correct...........???

Mathematics

1 answer:

bekas [8.4K]3 years ago

8 0

Answer:

A. Second Grade

Step-by-step explanation:

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Given the function rule f(x)= x^-2 - 4x + 3, what is the output of f(-3)?

Elena L [17]

<span>ax^2+bx+c
x^2-4x+3
(x-3)(x-1)=0
x=3, x=1 when y=0
The graph of the parabola has a minimum because a is positive.
(3+1)/2=2 so y will be at a minimum when x=2
f(x)=y=2^2-(4*2)+3
=4-8+3</span>

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3 years ago

Write the equation. 5 more than a number times 2 is 2

suter [353]

$(5 +n)\cdot2 = 2$

$3(2 -n) > 7$

8 0

3 years ago

If you need to put 1 teaspoon in a 10 gallon tank how many teaspoons for a 8 gallon tank

alex41 [277]

Answer:

$0.8\ teaspoon$

Step-by-step explanation:

Let

x ----> the number of teaspoon

y ---> the number of gallons

we know that

$\frac{x}{y} =\frac{1}{10}$ ---> equation A

For y=8 gal

substitute the value of y in the equation A

$\frac{x}{8} =\frac{1}{10}$

solve for x

$x=\frac{1}{10}(8)$

$x=0.8\ teaspoon$

7 0

3 years ago

a ladder 10cm rest on a vertical wall of 8cm what is the distance of the vertical Wall from the Foot of the ladder

ira [324]

Hi there!

$\huge\boxed{6cm}$

We can use the Pythagorean Theorem to solve:

Use the formula a² + b² = c² where:

"a" and "b" are the legs

"c" = Hypotenuse

The diagonal side, or the length of the ladder is 10cm, and one of the legs of the triangle is 8cm, therefore:

(8)² + b² = 10²

64 + b² = 100

Subtract 64 from both sides:

b² = 36

Take the square root of both sides:

√b² = √36

b = 6 cm. This is the distance of the wall from the foot of the letter.

Edit: Typo.

6 0

3 years ago

Read 2 more answers

2s + 36 > 50 do fractional solutions make sense in this context? Why or why not

Arisa [49]

Answer:

There may be fractional solutions in this context.

Step-by-step explanation:

We are given an inequality equation and we have to get a solution to that.

It is, 2s + 36 > 50

⇒ 2s > 50 - 36 {Subtracting 36 from both the sides}

⇒ 2s > 14

⇒ s > 7 {Dividing both sides by 2}

Therefore, solution of this given inequality is s > 7.

Now, the value of s is greater than 7 which may be an integer or a fraction.

So, there may be fractional solutions in this context. (Answer)

6 0

4 years ago