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Romashka-Z-Leto [24]
4 years ago
13

Don’t really understand this lesson any help

Mathematics
1 answer:
icang [17]4 years ago
7 0

Answer:

its positive.

Step-by-step explanation:

You might be interested in
I’m struggling to answer this question on my test, can someone explain it to me?
Flauer [41]
Correct answer is Option A: 18/48 = 21/56

You’ll have to divide the numerator by the denominator of each fraction to see whether they have the same quotient:

18/48 = 0.375
21/56 = 0.375


The other options are not proportional.

B) 20/28 = 15/18:

20/28 = 0.714
15/18 = 0.833

Thus, 20/28 ≠ 15/18

C). 3/5 = 13/10
3/5 = 0.6
13/10 = 1.3

Hence, 3/5 ≠ 13/10

D) 7/10 = 10/7
7/10 = 0.7
10/7 = 1.43

Thus, 7/10 ≠ 10/7

These solutions prove that the correct answer is A) 18/48 = 21/56

Please mark my answers as the Briainliest if you find my explanations helpful :)
4 0
3 years ago
What is the answer for 4i over 3+7i
icang [17]

Answer:

see explanation

Step-by-step explanation:

given \frac{4i}{3+7i}

To rationalise multiply the numerator/denominator by the conjugate of the denominator

the conjugate of 3 + 7i is 3 - 7i, hence

\frac{4i(3-7i)}{(3+7i)(3-7i)}

distribute the numerator/denominator

= \frac{12i-28i^2}{9-49i^2}

[ note that i² = - 1 ]

= \frac{12i+28}{9+49}

= \frac{28+12i}{58}

= \frac{28}{58} + \frac{12}{58} i

= \frac{14}{29} + \frac{6}{29} i ← in standard form



6 0
3 years ago
3. (02.02 MC)
LenaWriter [7]

Answer:

O -1+ 3/

Step-by-step explanation:

brainest plz

8 0
3 years ago
Cual es el conciente de 243÷3​
Veseljchak [2.6K]

Answer:

RPTA: 81

Step-by-step explanation:

Ya Que 243 ÷ 3 = 81

DE NADA UWU

5 0
2 years ago
Solve for x.<br><br> x/7 = -3 <br><br> 1,) x = -21<br> 2.) x = -10<br> 3.) x = 4<br> 4.) x = 21
IRISSAK [1]
X/7 = -3  is <span>1,) x = -21
</span>
8 0
4 years ago
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