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Gnom [1K]
3 years ago
5

How do you find the perimeter of the window to the nearest tenth. Half the widows radius is 20.

Mathematics
1 answer:
muminat3 years ago
7 0

Answer:

Step-by-step explanation:

Bsbsbdvd devebehehevergrbrhrhrhjddududyZhhdbdbsgssgsggsUhfhd

You might be interested in
How many solutions does the system have?
amid [387]

Answer:

A; infinitely many solutions

Step-by-step explanation:

first, let's simplify the first equation to make it simpler.

divide both sides by 5

y=3x-8

new system

y=3x-8

y=3x-8

as you can see, they are the same.

not mandatory but useful!⬇⬇⬇⬇

just to be more clear, let's substitute them. since they're both already in y=, we can make them both set to each other.

3x-8=3x-8

add 8 to both sides; subtract 3x from one side

0=0

the answer is A, Infinitely many solutions.

hope this helped <3333333

8 0
3 years ago
Find the product of z1 and z2, where z1 = 7(cos 40° + i sin 40°) and z2 = 6(cos 145° + i sin 145°).
Oduvanchick [21]
For two complex numbers z_1=re^{i\theta}=r(\cos\theta+i\sin\theta) and z_2=se^{i\varphi}=s(\cos\varphi+i\sin\varphi), the product is

z_1z_2=rse^{i(\theta+\varphi)}=rs(\cos(\theta+\varphi)+i\sin(\theta+\varphi))

That is, you multiply the moduli and add the arguments. You have z_1=7e^{i40^\circ} and z_2=6e^{i145^\circ}, so the product is

z_1z_2=7\times6(\cos(40^\circ+145^\circ)+i\sin(40^\circ+145^\circ)=42(\cos185^\circ+i\sin185^\circ)=42e^{i185^\circ}
3 0
3 years ago
Read 2 more answers
Maria would like to answer the question “How cold is it in January in New York?”
Rina8888 [55]
Statistics should be used because the temperature would vary during January and you would want to give an accurate answer.
8 0
2 years ago
Answer please!! urgent!!
Talja [164]

Answer:

a

Step-by-step explanation:

4 0
2 years ago
There are 28 students in Ms. Annand’s class. 25% got an A on their last math quiz. How many students did not receive an A on the
Luden [163]

Answer:

21 students

Step-by-step explanation:

25% of 28 is 7 28-7=21

8 0
2 years ago
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