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2 years ago

You spend $40 on 5 Pounds of concreate what is the 1 unit rate in dollars

Mathematics

2 answers:

Umnica [9.8K]2 years ago

6 0

Answer:

Step-by-step explanation:

kotegsom [21]2 years ago

3 0

Answer:

The unit rate is $8

Step-by-step explanation:

Divide 1d10t

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All the numbers from 1 to 100 that have 13 as a factor

Marrrta [24]

26, 39, 52, 65, 78, 91

3 0

3 years ago

Toni drives her car 99 mi on the highway on 3 gal of gas. At this rate how many miles can she drive on 11 gal of gas?

Helen [10]

Answer:

333.67 miles

Step-by-step explanation:

She drives her car 91 mi on 3 gal of gas

That’s 91 mi = 3 gal

How many miles can she drive on 11 gal of gas .

Let the mile she can drive by 11 gal of gas be A

At the same rate ,

91 mi = 3 gall

A mi = 11 gal

Cross multiply

A x 3 = 91 x 11

A x 3 = 1001

Divide both sides by 3

A x 3/3 = 1001/3

A = 333.67 miles

At the same rate she’ll drive 333.67 miles on 11 gal of gas

4 0

2 years ago

Let f(x)=x^2f ( x ) = x 2. Find the Riemann sum for ff on the interval [0,2][ 0 , 2 ], using 4 subintervals of equal width and t

sladkih [1.3K]

Answer:

$A_L=1.75$

Step-by-step explanation:

We are given:

$f(x)=x^2$

$interval = [a,b] = [0,2]$

Since $n = 4$ ⇒ $\Delta x = \frac{b-a}{n} = \frac{2-0}{4}=\frac{1}{2}$

Riemann sum is area under the function given. And it is asked to find Riemann sum for the left endpoint.

$A_L= \sum\limits^{n}_{i=1}\Delta xf(x_i) = \frac{1}{2}(0^2+(\frac{1}{2})^2+1^2+(\frac{3}{2})^2)=\frac{7}{4}=1.75$

Note:

If it will be asked to find right endpoint too,

$A_R=\sum\limits^{n}_{i=1}\Delta xf(x_i) =\frac{1}{2}((\frac{1}{2})^2+1^2+(\frac{3}{2})^2+2^2)=\frac{15}{4}=3.75$

The average of left and right endpoint Riemann sums will give approximate result of the area under $f(x)=x^2$ and it can be compared with the result of integral of the same function in the interval given.

So, $(A_R+A_L)/2 = (1.75+3.75)/2=2.25$

$\int^2_0x^2dx=x^3/3|^2_0=8/3=2.67$

Result are close but not same, since one is approximate and one is exact; however, by increasing sample rates (subintervals), closer result to the exact value can be found.

3 0

2 years ago

The area of a square garden is 98m squared. How long is the diagonal?

aleksley [76]

Answer:

diagonal is 14 m

Step-by-step explanation:

We are given;

The area of a square garden as 98 m²

We are required to determine the diagonal of the square.

We know that;

Area of a square = s² , where s is the side of the square

Therefore;

s² = 98

Thus;

s = √98

To get the diagonal

s² + s² = diagonal squared

Hence;

Diagonal squared = (√98)² + (√98)²

= 98 + 98

= 196

Thus;

Diagonal = √196

= 14 m

Thus, the diagonal is 14 m

8 0

3 years ago

HELP ME PLS THIS IS TIMED OMG LMFJAHAH

Delicious77 [7]

Step-by-step explanation:

I think its Domain: -2,-1,3,-5,-8

Range:5,-2,5,-2,-2

4 0

2 years ago