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4 years ago

TRUE or FALSE:

Mathematics

1 answer:

Aloiza [94]4 years ago

4 0

Answer:

False

Step-by-step explanation:

They are two different points. A way to check it is changing to cartesian coordinates, the formula to change from polar to cartesian is:

$x = rcos(\theta)\\y = rsin(\theta)$

For the point $(-4, \pi)$

$x_1=-4cos(\pi)=4\\y_1=-4sin(\pi)=0$

For the point $(4,-\pi)$

$x_2=4cos(-\pi)=-4\\y_2=4sin(-\pi)=0$

$(4,0)\neq (-4,0)$

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Solve the system of linear equations using elimination.

Alexxx [7]

A because it’s a hope I helped

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3 years ago

Eric and Linda are paid 52.25 for they're work. Eric worked 3.5 hours, and Linda worked 2 hours. They split the money according

Ne4ueva [31]

Answer:

$33.25

Step-by-step explanation:

Taking Eric's hours as a ratio to the total hours :

3.5 : 3.5 + 2
3.5 : 5.5
3.5 x 2 = : 5.5 x 2
7 : 11

Multiply the ratio into the amount paid :

52.25 x 7/11
4.75 x 7
$33.25

Eric's share of the money is $33.25

4 0

3 years ago

Read 2 more answers

Please help me with this !

nalin [4]

Answer:

Hopefully these 2 pictures can help you out with finding the surface area.

Step-by-step explanation:

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4 years ago

If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?

sesenic [268]

Hello,

$a_{0}=15$ first term
$a_{1}=15+r$ second term
$a_{2}=15+2r$ third term
...
$a_{9}=15+9r$ is the tenth term =69

15+9r=69
==>9r=69-15
==>r=54/9=6
$a_{3}=15+3r=15+18=33$

3 0

3 years ago

1. The weekly ad for a local grocery store advertises a 5 pound bag of organic apples for $13.95. Round each rate to the nearest

kaheart [24]

Answer:

(a). Weight of the bag of organic apples for advertising = 5 pound

Cost of the advertisement of 5 pound bag of organic apples = $13.95

Now, to find the unit rates :

Cost of advertising 5 pound bag of organic apple = $13.95

$\text{Cost of advertising 1 pound bag of organic apple = }\frac{13.95}{5}=\$2.79$

Hence, unit rate of advertising 1 pound of organic apples = $2.79

$13.95 is charged for advertisement of 5 pound of organic apples

$\$\text{1 will be charged for advertisement of }\frac{5}{13.95}=0.36\text{ pounds}$

Hence, one unit or $1 is charged for advertisement of 0.36 pounds of organic apples.

(b) Cost of 5 pound is given to be $13.95

So, the rate which is typically used in the given problem is : Dollars per pound.

7 0

3 years ago