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3 years ago

Matrices and determinants What is 4c?

Mathematics

2 answers:

-Dominant- [34]3 years ago

7 0

Answer:

$\boxed{\sf D}$

Step-by-step explanation:

ddd [48]3 years ago

5 0

Answer:

Answer is D.

Step-by-step explanation:

do 4 times every value in the ( )

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The temperature changed from 7°F at 6 p.M to -5°F at midnight. What was the difference between the high and low temperatures? Wh

IgorC [24]

Answer:

12 °F

2°F per hour

Step-by-step explanation:

The difference can be found by substracting:

7°F-( -5 °F)

=12 °F

To find the average change in temperature per hour, divide by how many hours between 6 to midnight. Between 6 to midnight is 6 hours.

12°F / 6 hours

= 2°F/ hour

7 0

3 years ago

A car has a windshield wiper on the driver's side that has total arm length of 10 inches. It rotates

son4ous [18]

Answer:

75.44 Square Inches

Step-by-step explanation:

The diagram of the problem is produced and attached.

To determine the area of the cleaned sector:

Let the radius of the larger sector be R

Let the radius of the smaller sector be r

Area of the larger sector $=\frac{\theta}{360}X\pi R^2$

Area of the smaller sector $=\frac{\theta}{360}X\pi r^2$

Area of shaded part =Area of the larger sector-Area of the smaller sector

$=\frac{\theta}{360}X\pi R^2-\frac{\theta}{360}X\pi r^2\\=\frac{\theta \pi}{360}X (R^2- r^2)$

From the diagram, R=10 Inch, r=10-7=3 Inch, $\theta=95^\circ$

Therefore, Area of the sector cleaned

$=\frac{95 \pi}{360}X (10^2- 3^2)\\=75.44$ Square Inches$

7 0

3 years ago

Help find equation and missing angle

devlian [24]

Answer:

angle V + Angle W = angle U

angle VUF is equal to 94 degrees

Step-by-step explanation:

6 0

3 years ago

An iphone costs $1000 and is on sale for 20% off

vfiekz [6]

Answer:

200

Step-by-step explanation:

20 X 1000= 20000 divided by 100

6 0

3 years ago

Read 2 more answers

PLZ HELP AND IF U TAKE MY POINTS I WILL REPORT U AN WHO EVER HELPS I WIL GIVE BRAINIEST

Sphinxa [80]

Answer:

the second one I can't give a explanation cause my wrist is broken so it's harder to type hope this helps

6 0

2 years ago