3 years ago

I'm new to the app. Stumped on all of these

Mathematics

1 answer:

nekit [7.7K]3 years ago

3 0

What are you stumped on?

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Question is on the picture:)

Marat540 [252]

Answer:

Z = 90 degrees

Step-by-step explanation:

Reason is a diameter subtends angle of 90 degrees on the circumference

8 0

1 year ago

Gregory sees an $80.00 jacket on sale at 30% off. How much will it cost after a 7% sales tax? $56.00 $59.92

ahrayia [7]

$80.00 × 30%
= $24
= $80 - $24
= $56 × 7%
= $3.92
= $56 + $3.92
= $59.92

7 0

3 years ago

Read 2 more answers

PLEASE ANSWER + BRAINLIEST!! Factor completely. 4k - 20k^9 = 3b^2 - 108 =

Neporo4naja [7]

$4k-20k^9=4k(1-5k^8)=4k\left[1^2-(k^4\sqrt5)^2\right]\\\\=4k(1-k^4\sqrt5)(1+k^4\sqrt5)=4k\left[1^2-(k^2\sqrt[4]5)^2\right](1+k^4\sqrt5)\\\\=4k(1-k^2\sqrt[4]5)(1+k^2\sqrt[4]5)(1+k^4\sqrt5)\\\\=4k\left[1^2-(k\sqrt[8]5)^2\right](1+k^2\sqrt[4]5)(1+k^4\sqrt5)\\\\=4k(1-k\sqrt[8]5)(1+k\sqrt[8]5)(1+k^2\sqrt[4]5)(1+k^4\sqrt5)$

$3b^2-108=3(b^2-36)=3(b^2-6^2)=3(b-6)(b+6)$

$Used:\ (a-b)(a+b)=a^2-b^2$

7 0

3 years ago

Which ones greater 8 inches or 8 feet

Gre4nikov [31]

Answer:

8 feet

12 inches equals 1 foot, so 8 inches is a lot smaller than 8 feet.

4 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D%20%2B%5Cfrac%7B5%7D%7B7%7D%20%2B-%5Cfrac%7B1%7D%7B5%7D" id="TexFormula1"

natali 33 [55]