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VARVARA [1.3K]
3 years ago
14

Can someone help and explain this question please thank you so much I appreciate

Mathematics
1 answer:
lakkis [162]3 years ago
6 0

Answer:

$176.23

Step-by-step explanation:

(13x12)+(0.07x289)=

156+20.23=

$176.23

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A pie shop charges $4 for a slice of pie. They cut each whole pie into 6 slices. How much money will the pie shop make if they s
Likurg_2 [28]
$120

4x6=24
24x5=120
YW
8 0
3 years ago
Consider the curve defined by the equation y=6x2+14x. Set up an integral that represents the length of curve from the point (−2,
torisob [31]

Answer:

32.66 units

Step-by-step explanation:

We are given that

y=6x^2+14x

Point A=(-2,-4) and point B=(1,20)

Differentiate w.r. t x

\frac{dy}{dx}=12x+14

We know that length of curve

s=\int_{a}^{b}\sqrt{1+(\frac{dy}{dx})^2}dx

We have a=-2 and b=1

Using the formula

Length of curve=s=\int_{-2}^{1}\sqrt{1+(12x+14)^2}dx

Using substitution method

Substitute t=12x+14

Differentiate w.r t. x

dt=12dx

dx=\frac{1}{12}dt

Length of curve=s=\frac{1}{12}\int_{-2}^{1}\sqrt{1+t^2}dt

We know that

\sqrt{x^2+a^2}dx=\frac{x\sqrt {x^2+a^2}}{2}+\frac{1}{2}\ln(x+\sqrt {x^2+a^2})+C

By using the formula

Length of curve=s=\frac{1}{12}[\frac{t}{2}\sqrt{1+t^2}+\frac{1}{2}ln(t+\sqrt{1+t^2})]^{1}_{-2}

Length of curve=s=\frac{1}{12}[\frac{12x+14}{2}\sqrt{1+(12x+14)^2}+\frac{1}{2}ln(12x+14+\sqrt{1+(12x+14)^2})]^{1}_{-2}

Length of curve=s=\frac{1}{12}(\frac{(12+14)\sqrt{1+(26)^2}}{2}+\frac{1}{2}ln(26+\sqrt{1+(26)^2})-\frac{12(-2)+14}{2}\sqrt{1+(-10)^2}-\frac{1}{2}ln(-10+\sqrt{1+(-10)^2})

Length of curve=s=\frac{1}{12}(13\sqrt{677}+\frac{1}{2}ln(26+\sqrt{677})+5\sqrt{101}-\frac{1}{2}ln(-10+\sqrt{101})

Length of curve=s=32.66

5 0
3 years ago
Express your ratio in simplest form : 85 out of 102
Artist 52 [7]
5:6 Hope this helps you!!

3 0
3 years ago
Read 2 more answers
Are all squares trapezium?
Rina8888 [55]

Answer:

yes

Step-by-step explanation:

In a square, there are always two pairs of parallel sides, so every square is also a trapezoid. TRAPEZOID i said

But this is a US response so if this is from another country then the answer is no

8 0
2 years ago
What is expressed as a percent? 1/5
ololo11 [35]

Answer:

if your asking 1/5 as a percent its .20

Step-by-step explanation:

1/5 is equal to 2/10 and tats .20 as a percent so bam your welcome (if that was what you were asking)

5 0
3 years ago
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