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2 years ago

Find the length of the arc. Use 3.14 for the value of 7. Round your answer to the nearest tent

Mathematics

2 answers:

nexus9112 [7]2 years ago

4 0

Answer:

15.70

Step-by-step explanation:

2×3.14×10(90÷360)=15.70

Salsk061 [2.6K]2 years ago

4 0

<h2>Answer</h2>

The length of the arc is 15,7 km

<h2>Explain</h2>

Form :

$=2 \times \pi \times {r} \times \frac{ \alpha \degree}{360 \degree} \\$

Solve :

$= 2 \times \pi \times r \times \frac{ \alpha \degree}{360 \degree} \\$

$= 2 \times 3.14 \times 10 \times \frac{90}{360} \\$

$= 2 \times 31.4 \times 1 \times \frac{ \cancel{90}}{ \cancel{360}} \\$

$= \cancel2 \times 31.4 \times \frac{1}{ \cancel4} \\$

$= 31.4 \times \frac{1}{2} \\$

$= \frac{31.4}{2} \\$

$= 15.7 \: km$

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-25+t=-44 solve using addition principle. The solution is t=

love history [14]

Explanation:

First, add by 25 both sides of an equation.

$-25+t+25=-44+25$

Then, simplify by equation and add/subtract by the numbers.

$44-25=19$

*The answer must be have a negative sign.

$\boxed{t=-19}$

Hope this helps!

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3 0

2 years ago

Read 2 more answers

Find the slope of the line that goes through the given points (8,5) (6,7)

vazorg [7]

To find the slope of a line that goes through given points with known coordinates, you divide the subtraction of the y of the second point minus the y of the first point, by the subtraction of the x of the second point minus the x of the first point:
m = (yB-yA) / (xB-xA)

Let A(8,5) and B(6,7).
With yB = 7; yA = 5; xB = 6; xA = 8
m = (7-5) / (6-8)
m = 2/-2
m = -1

So the slope of the line that goes through the given points (8,5) and (6,7) is m = -1.

I've added a pic of the line with both points under the answer.

Hope this Helps! :)

4 0

2 years ago

Which property is shown by -3 x (6+5) = -3 x 6+ -3 x 5

aniked [119]

Answer:

The distributive property of multiplication

Step-by-step explanation:

we know that

The <u>distributive property of multiplication</u> states that the product of a number by a sum, is equal to multiply each addend by the number (This is called distributing the number) and then, you can add the products

$a*(b+c)=a*b+a*c$

in this problem we have

$-3*(6+5)=-3*6+-3*5$ ----> the number -3 is distributed

therefore

We have the distributive property of multiplication

4 0

3 years ago

Pls only do this if yk it because i’m giving correct answer brainliest! :))

Leno4ka [110]

Answer:

$x=2+\frac{1}{2}\sqrt[]{21}$

$x=2-\frac{1}{2}\sqrt{{21}$

Step-by-step explanation:

$4x^2-16x-26=-21$

Add 21 on both sides.

$4x^2-16x-26+21=-21+21$

$4x^2-16x-5=0$

a=4

b=-16

c=-5

$x=\frac{-b\frac{+}{}\sqrt[]{b^2-4ac} }{2a}$

$x=\frac{-(-16)\frac{+}{}\sqrt[]{(-16)^2-4(4)(-5)} }{2(4)}$

$x=\frac{16\frac{+}{}\sqrt[]{256+80} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{336} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{2^2*2^2*21} }{8}$

$x=\frac{16\frac{+}{}2*2\sqrt[]{21} }{8}$

$x=\frac{16\frac{+}{}4\sqrt[]{21} }{8}$

---------------------------------------------------------------------------

$x=\frac{16}{8}+\frac{4\sqrt[]{21}}{8}$

$x=2+\frac{1}{2}\sqrt[]{21}$

---------------------------------------------------------------------------

$x=\frac{16}{8}-\frac{4\sqrt[]{21}}{8}\\x=2-\frac{1}{2}\sqrt{{21}$

6 0

2 years ago

Read 2 more answers

Olympia ate lunch at a restaurant the amount of her check was $6.89 she left eight dollars on the table which included the amoun

maxonik [38]

The equation will be like this,

6.89 + t = 8.00

t = 8 - 6.89

t = 1.11

tips = $1.11

6.89 + t = 8.00

To sum up the total amount of cash and coins you have, first, sort each invoice and coin by denomination. Create a separate stack for each denomination and count how many denominations or coins you have.

For each denomination of banknotes and coins, multiply the number you have by the denomination. For example, if you have 4 out of $ 10, multiply by 4x10 to get $ 40. If you have three $ 5 bills, multiply by 3x5 to get $ 15.

Sum the totals to calculate the total amount.

Learn more about Ammount Calculation here: brainly.com/question/2005046

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3 0

2 years ago