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3 years ago

The Average temperature in Antarctica is about -50 degrees Celsius which of the following best describe -50 degrees Celsius?

Mathematics

1 answer:

Mkey [24]3 years ago

6 0

Answer:

What are the choices? Is there any pictures

Step-by-step explanation:

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A sofa regularly sells for $680. The sale price is $523.60. Find the percent decrease of the sale price from the regular price

Studentka2010 [4]

Answer:

23%

Step-by-step explanation:

if 100% of it = $680 then multiply 100 and the sale price then divide it with actual price to find what's % is 523.60

100 × 523.60 ÷ 680 = 77

if 523.60 is 77% then the discount amount is 23%

3 0

3 years ago

Sara borrowed 500$ for four years at 3% interest compound3d annually . total amt she will pay back.?

Bas_tet [7]

Compound

$A=P(1+ \frac{r}{n})^{rt}$

A=future amount
P=present amount
r=rate in decimal
n=number of times per year compounded
t=time in years

A=?
P=500
r=0.03
n=1
t=4

$A=500(1+ \frac{0.03}{1})^{(1)(4)}$
$A=500(1+0.03)^{4}$
$A=500(1.03)^{4}$
A=562.754

pay back $562.75

4 0

3 years ago

Standard form of x^2 + 16x + 71

balu736 [363]

Answer:

It's (-8,7) I believe, I hope this helps!

Step-by-step explanation:

4 0

3 years ago

Find the area of a circle with radius of 7

zubka84 [21]

Answer:

-The area of a circle:

$A \approx 153.938$

$A \approx 153.94$ (Rounded to nearest hundredth if needed)

Step-by-step explanation:

-Use the formula to find the area of a circle:

$A = \pi r^2$

-After you have the formula set up, use the radius for the formula:

$A = \pi 7^2$

-Then, you solve the formula:

$A = \pi \times 7^2$

$A = \pi \times 49$

$A = 49\pi \approx 153.938$

-Round up to the nearest hundredth (if needed):

$A \approx 153.94$

4 0

3 years ago

Hopefully y'all can understand the picture

Lena [83]

The formula for finding the area of a circle can be written in many ways. If the radius is given, the formula is A=πr², where A=area, π=22/7 or 3.14, and r is the radius.
If the diameter is given, then the formula is A=1/4πd², where A is the area, π is 22/7 or 3.14 and d is the diameter
Given that the diameter is 46 inches and π=22/7 or approximately 3.14, the formula we can use is A=1/4πd² where A=area, π is 22/7 and d is 46
A=1/4*22/7*46*46
A=16662.57 inches² (It is rounded to nearest hundredth)

5 0

3 years ago