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3 years ago

7

What sign is a result of a negative integer raised to an even power

1 answer:

Mumz [18]3 years ago

6 0

Answer:

+

Step-by-step explanation:

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URGENT!!! PLEASE HELP

Salsk061 [2.6K]

Answer:

c is 30.

The angles, from left to right, are:

66, 94, and 20.

Step-by-step explanation:

The three angles form a straight angle. In other words, they sum to 180. So, we can write the following equation:

$(2c+6)+(3c+4)+(\frac{1}{2}c+5)=180$

Let's solve for c. Combine like terms:

$(2c+3c+0.5c)+(6+4+5)=180$

Add:

$5.5c+15=180$

Subtract 15 from both sides:

$5.5c=165$

Divide both sides by 5.5:

$c=30$

So, the value of c is 30.

Now, substitute it into each of the angles to find their respective measures.

Left-Most Angle:

We have:

$2c+6$

Substitute 30 for c. This yields:

$=2(30)+6$

Multiply and add:

$=60+6=66$

Middle Angle:

We have:

$3c+4$

Substitute 30 for c:

$=3(30)+4$

Multiply and add:

$=90+4=94$

Right-Most Angle:

We have:

$\frac{1}{2}c+5$

Substitute 30 for c:

$=\frac{1}{2}(30)+5$

Multiply and add:

$=15+5=20$

So, our angles, from left to right, are: 66, 94, and 20.

And the value of c is 30.

And we're done!

3 0

3 years ago

Use the definition to find an expression for the area under the curve y = x3 from 0 to 1 as a limit. lim n→∞ n i = 1 R (b) The f

Harlamova29_29 [7]

The summand (R?) is missing, but we can always come up with another one.

Divide the interval [0, 1] into $n$ subintervals of equal length $\dfrac{1-0}n=\dfrac1n$ :

$[0,1]=\left[0,\dfrac1n\right]\cup\left[\dfrac1n,\dfrac2n\right]\cup\cdots\cup\left[1-\dfrac1n,1\right]$

Let's consider a left-endpoint sum, so that we take values of $f(\ell_i)={\ell_i}^3$ where $\ell_i$ is given by the sequence

$\ell_i=\dfrac{i-1}n$

with $1\le i\le n$ . Then the definite integral is equal to the Riemann sum

$\displaystyle\int_0^1x^3\,\mathrm dx=\lim_{n\to\infty}\sum_{i=1}^n\left(\frac{i-1}n\right)^3\frac{1-0}n$

$=\displaystyle\lim_{n\to\infty}\frac1{n^4}\sum_{i=1}^n(i-1)^3$

$=\displaystyle\lim_{n\to\infty}\frac1{n^4}\sum_{i=0}^{n-1}i^3$

$=\displaystyle\lim_{n\to\infty}\frac{n^2(n-1)^2}{4n^4}=\boxed{\frac14}$

8 0

4 years ago

the function y = 3.75 + 1.5(x-1) can be used to determine the cost in dollars for a taxi ride of x miles. what is the rate of ch

Nesterboy [21]

Cost for travelling 1 mile = 3.75
cost 2 miles = 5.25
cost 3 miles = 6.75
cost 4 miles = 8.25

rate of change = 1.5 dollars per mile

8 0

3 years ago

Read 2 more answers

The price of a computer was decreased by 30% to £147. What was the price before the decrease?

Sunny_sXe [5.5K]

Answer:

£210

Step-by-step explanation:

A decrease of 30% represents 70% of the original cost.

100% represents the original cost

Divide the price by 70 to find 1% then multiply by 100 for original cost

original cost = $\frac{147}{70}$ × 100 = 2.1 × 100 = £210

4 0

3 years ago

Read 2 more answers

Janice swam in the 400 ___ backstroke.

ruslelena [56]

Meter/ yard. Likely meter since that is high/college standard

7 0

3 years ago