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3 years ago

15

Simplify (8×4)(4×3)÷7×2

2 answers:

dsp733 years ago

8 0

27.42 is the answering

Ket [755]3 years ago

5 0

(8 x 4)(4 x 3) ÷ 7 x 2, what we will do is answer the questions in parenthesis

(32)(12) ÷ 7 x 2, then from here we multiply 32 and 12 because PEMDAS

which gives us 384 ÷ 7 x 2, now we divide (:

54.8571428571, i'm going to simplify this to 55 to make it simpler, so now we have 55 x 2 then we do our final multiplication

and our final answer is 110 or if you used that big number it is 109.714285714 (((((((((((:

You might be interested in

suppose you have 76 feet of fencing to enclose a rectangular dog pen. The function A=38x-x^2, where x= width, gives you the area

yan [13]

If A=38x-x^2 then

dA/dx=38-2x

d2A/dx2=-2

Since the acceleration, d2A/dx2 is a constant negative, when velocity, dA/dx=0, it will be an absolute maximum for A(x)

dA/dx=0 only when 38=2x, x=19

A(19)=38(19)-19^2

A(19)=722-361

A(19)=361 ft^2

So the maximum possible area is 361 ft^2

(This will always be true as the maximum possible area enclosed by a given amount of material will always be a perfect square...)

3 0

3 years ago

Robbie, has scored 120 so far this season. He has scored all of his points on 1-point extra point kicks and 3-point field goals.

joja [24]

Answer:

39 and 27

Step-by-step explanation:

GIVEN: Robbie, has scored $120$ so far this season. He has scored all of his points on $1$ -point extra point kicks and $3$ -point field goals. He has made a total of $66$ kicks.

TO FIND: How many of each kick has he made.

SOLUTION:

Lets extra point kicks made by Robbie be $x$

points scored using extra point kick $=1$

field goal kicks made by Robbie $=66-x$

point scored using field goal kick $=3$

Total points scored by Robbie $=120$

Total points scored are the sum of points scored by extra point kicks and field goal kicks.

$1\times x+(66-x)3=120$

$198-2x=120$

$2x=78$

$x=39$

total extra point kicks $=39$

total field goal kicks $=66-39=27$

Hence Robbie made 39 and 27 kicks of extra point kick and field goal kicks respectively.

6 0

3 years ago

Read 2 more answers

Find the length of the curve given by ~r(t) = 1 2 cos(t 2 )~i + 1 2 sin(t 2 ) ~j + 2 5 t 5/2 ~k between t = 0 and t = 1. Simplif

xxMikexx [17]

Answer:

The length of the curve is

L ≈ 0.59501

Step-by-step explanation:

The length of a curve on an interval a ≤ t ≤ b is given as

L = Integral from a to b of √[(x')² + (y' )² + (z')²]

Where x' = dx/dt

y' = dy/dt

z' = dz/dt

Given the function r(t) = (1/2)cos(t²)i + (1/2)sin(t²)j + (2/5)t^(5/2)

We can write

x = (1/2)cos(t²)

y = (1/2)sin(t²)

z = (2/5)t^(5/2)

x' = -tsin(t²)

y' = tcos(t²)

z' = t^(3/2)

(x')² + (y')² + (z')² = [-tsin(t²)]² + [tcos(t²)]² + [t^(3/2)]²

= t²(-sin²(t²) + cos²(t²) + 1 )

................................................

But cos²(t²) + sin²(t²) = 1

=> cos²(t²) = 1 - sin²(t²)

................................................

So, we have

(x')² + (y')² + (z')² = t²[2cos²(t²)]

√[(x')² + (y')² + (z')²] = √[2t²cos²(t²)]

= (√2)tcos(t²)

Now,

L = integral of (√2)tcos(t²) from 0 to 1

= (1/√2)sin(t²) from 0 to 1

= (1/√2)[sin(1) - sin(0)]

= (1/√2)sin(1)

≈ 0.59501

8 0

3 years ago

Will give brainliest, can somebody help me with this question

Andrew [12]

Answer:

A = 5x + 5

Step-by-step explanation:

Area of Parallelogram Formula: A = bh

Since we are given <em>b</em> = 5 and <em>h</em> = x + 1, simply plug it into the formula:

A = 5(x + 1)

A = 5x + 5

4 0

2 years ago

Read 2 more answers

Write the linear equation in slope-intercept form given the following: slope = 2/3 ; y-intercept = -1

Ira Lisetskai [31]

Answer:

Brainliest???

Step-by-step explanation:

3 0

2 years ago