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3 years ago

EXTRA POINTS PLEAS HELP ME !!!!!!!!!!!! :3 ◑ω◐ 14 points if you can help ◑ω◐

Mathematics

2 answers:

Ugo [173]3 years ago

5 0

Answer:

The answer is

(A. )1\50 - -(1 3/4) C. 0.50 + 1.75

Step-by-step explanation:

I had the same question 5 minutes ago hope this helps

VikaD [51]3 years ago

3 0

A is . 1/50
lmk if you need any other help :)

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Is ( – 1, – 5) a solution to this system of equations? 7x+2y=13 4x+4y=14

Rus_ich [418]

Answer:

yes

Step-by-step explanation:

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2 years ago

Two of it of his favorite buildings are Chicago Sears Tower and the Dubai's Burj Khalifa. If Burji Khalifa stands 830 meters hig

sammy [17]

Answer: 303 meters

Step-by-step explanation:

The Burji Khalifa is 830 meters in height and the Sears tower is 527 meters in height.

To find out how much higher the Burji Khalifa is than the Sears tower, subtract the height of the Sears tower from the height of the Burji Khalifa:

= 830 - 527

= 303 meters

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3 years ago

(8/v-7)=-5 solve for v

Natasha_Volkova [10]

8/v-7=-5 add 7 to both sides

8/v=2 multiply both sides by v

8=2v divide both sides by 2

4=v

v=4

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3 years ago

The table below shows the times and task that must be done to host a party at your house.

Ostrovityanka [42]

Answer: A) 0.5 Hours

I got it correct!

4 0

4 years ago

X=2π/3

Marina86 [1]

Answer:

$cos{\frac{2\pi}{3}}=-\frac{1}{2}$ .

Reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

$x=\frac{2\pi}{3}$

Now, we have to find the exact value of $cos{\frac{2\pi}{3}}$

$cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})$

$=-sin(\frac{\pi}{6})$

$=-\frac{1}{2}$

Now, we have to find the reference angle of $x=\frac{2\pi}{3}$ .

Since the angle $x=\frac{2\pi}{3}$ lies in second quadrant, the reference angle formula is

Reference angle= $\pi-given angle$ .

= $\pi-\frac{2\pi}{3}=\frac{\pi}{3}$

3 0

3 years ago