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miss Akunina [59]
2 years ago
12

A lesson starts at 10:15 it lasts for 55 minutes. when does the lesson end

Mathematics
2 answers:
Alex73 [517]2 years ago
6 0

Answer:

the lesson will end at 11:10.

Step-by-step explanation:

hope this helps:) please mark brainliest

Natasha_Volkova [10]2 years ago
6 0

Answer:

11:10

Explanation:

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Evaluate 7r-15/8 when r=3 and 8=5​
Natali [406]

Answer:

18

Step-by-step explanation:

multiply 7 and 3

reduce 15/5 to 3

subtract 21-3

18

8 0
3 years ago
Read 2 more answers
Q1) Ms. Garcia baked a 12 pound cake for a birthday party. Bryant ate 1/4 of 1 point
olga55 [171]

Answer:

3 pounds

Step-by-step explanation:

12/4=3 (because we need to see how much bryant ate first)

12-3=9 (original - what bryant ate)

9/3=3 (what was left after bryant finish and what 1/3 of 9 is)

3 0
3 years ago
Find the polynomial equation of least degree with roots -1, 3, and (+/-)3i
jasenka [17]
Each of these roots can be expressed as a binomial:

(x+1)=0, which solves to -1
(x-3)=0, which solves to 3
(x-3i)=0 which solves to 3i
(x+3i)=0, which solves to -3i
There are four roots, so our final equation will have x^4 as the least degree

Multiply them together. I'll multiply the i binomials first:
(x-3i)(x+3i) = x²+3ix-3ix-9i²
x²-9i²
x²+9  [since i²=-1]

Now I'll multiply the first two binomials together:
(x+1)(x-3) = x²-3x+x-3
x²-2x-3
Lastly, we'll multiply the two derived terms together:

(x²+9)(x²-2x-3)   [from the binomial, I'll distribute the first term, then the second term, and I'll stack them so we can simply add like terms together]

x^4 -2x³-3x²
 <u>           +9x²-18x-27</u>
x^4-2x³+6x²-18x-27

7 0
3 years ago
9. The longitude of a geographic location is measured in degrees east (E) or west (W) from the
alexandr402 [8]

Based on the longitudes of Quito and Singapore, the shortest distance between the two areas is 19,702.5 km .

<h3>How far is Quito from Singapore?</h3>

Because both cities are close to the equator, you use the longitudinal difference method to find the shortest distance.

First find the difference in longitudes:

= Singapore - Quito

= 104 - (-78.5) because Quito is west

= 104 + 78.5

= 182.5°

Then subtract this from 360°:
= 360 - 182.5

= 177.5°

Every 1° longitude along the Equator is 111 km so the shortest distance is:

= 177.5 x 111

= 19,702.5 km

Find out more on longitudes at brainly.com/question/23425958.

#SPJ1

8 0
1 year ago
Is PQRST a scaled copy of ABCDE ? Explain reasoning
loris [4]

Answer: no

Step-by-step explanation:

7 0
3 years ago
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