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3 years ago

Sawswsswwwwwwwwwassa

Mathematics

2 answers:

devlian [24]3 years ago

8 0

Answer:

Sawswsswwwwwwwwwassa

Step-by-step explanation:

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marshall27 [118]3 years ago

8 0

assawwwwwwwwwsswswaS

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Enter your answer and show all the steps that you use to solve this problem in the space provided. Simplify the expression. 5 +

Anettt [7]

Answer:

$\Large\boxed{21}$

Step-by-step explanation:

To solve this problem, first you have to use the order of operations stands for parenthesis, exponents, multiply, divide, add, and subtract from left to right. Remember to use the order of operations stands for "Please Excuse My Dear Aunt Sally."

Do parenthesis first.

$\displaystyle(8-6)=2$

$\displaystyle 5+4\times2^2$

Next, exponent.

$\displaystyle 2^2=2\times2=4$

$\displaystyle 5+4\times4$

Multiply & divide numbers from left to right.

$\displaystyle 4\times4=16$

Finally, add & subtract numbers from left to right.

$\displaystyle 5+16=21$

As a result, the correct answer is 21.

4 0

3 years ago

A taxi charges $2 for the first fifth of a mile and $0.25 for each additional fifth of a mile. What is the cost of a 2-mile ride

Svet_ta [14]

I believe the answer is $6.

7 0

3 years ago

HURRY HELP PLS‼️‼️‼️

Brums [2.3K]

Answer:

Step-by-step explanation:

To solve this problem you need the function

h(t) = -16t2 + v0t + h0

where t = time

v0 is the initial velocity, which in our case is 0

h0 = initial height, which in our case is 256

h(t) = 0 since we want to know when the ball will hit the ground.

0 = -16 t2 + 256

And we can solve for t

If we rearrange the terms we see that this is a difference of 2 squares

0 = 256 - 16t2

0 = (16-4t)(16+4t)

Setting each factor = 0

16-4t=0 16+4t=4

t = 4 t = -4

The second solution is discarded as time cannot be negative.

So the ball will hit the ground in 4 seconds.

6 0

2 years ago

I need help with this please

Hoochie [10]

Answer:

B. 15

Step-by-step explanation:

6 x 5 = 30

1/2 or 30 is 15

6 0

3 years ago

Y=-1/3x^2-4x-5 in vertex form

grigory [225]

Answer:

$Y=-\frac{1}{3}(x+6)^2+7$ [Vertex form]

Step-by-step explanation:

Given function:

$Y=-\frac{1}{3}x^2-4x-5$

We need to find the vertex form which is.,

$y=a(x-h)^2+k$

where $(h,k)$ represents the co-ordinates of vertex.

We apply completing square method to do so.

We have

$Y=-\frac{1}{3}x^2-4x-5$

First of all we make sure that the leading co-efficient is =1.

In order to make the leading co-efficient is =1, we multiply each term with -3.

$-3\times Y=-3\times\frac{1}{3}x^2-(-3)\times4x-(-3)\times 5$

$-3Y=x^2+12x+15$

Isolating $x^2$ and $x$ terms on one side.

Subtracting both sides by 15.

$-3Y-15=x^2+12x-15-15$

$-3Y-15=x^2+12x$

In order to make the right side a perfect square trinomial, we will take half of the co-efficient of $x$ term, square it and add it both sides side.

square of half of the co-efficient of $x$ term = $(\frac{1}{2}\times 12)^2=(6)^2=36$

Adding 36 to both sides.

$-3Y-15+36=x^2+12x+36$

$-3Y+21=x^2+12x+36$

Since $x^2+12x+36$ is a perfect square of $(x+6)$ , so, we can write as:

$-3Y+21=(x+6)^2$

Subtracting 21 to both sides:

$-3Y+21-21=(x+6)^2-21$

$-3Y=(x+6)^2-21$

Dividing both sides by -3.

$\frac{-3Y}{-3}=\frac{(x+6)^2}{-3}-\frac{21}{-3}$

$Y=-\frac{1}{3}(x+6)^2+7$ [Vertex form]

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3 years ago