1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
2 years ago
12

Write 7 in the form a + ib

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
8 0

Answer:

Step 1. A=4

Step 2. Ib =3

Step 3 add it. Ans=7

You might be interested in
7)<br> 2 1<br> Please help giving Brainly
Mama L [17]

Answer:

You should use MathPapa.

Step-by-step explanation:

5 0
3 years ago
Evaluate the following
IRINA_888 [86]

(a) [\frac{9}{2.6}  - \frac{2.5^{2} }{2.5} ]^{2}

Answer:

[\frac{9}{2.6}  - \frac{2.5^{2} }{2.5} ]^{2}

= [\frac{9}{2.6}  - \frac{2.5*2.5 }{2.5} ]^{2}

= [\frac{9}{2.6}  - \frac{2.5}{1} ]^{2}

*canceling 2.5 in numerator and denominator*

= [\frac{9-(2.5)(2.6)}{2.6} ]^2\\*Using L.C.M of 2.6 and 1 which comes out to be '2.6'= [\frac{9-(6.5)}{2.6} ]^2\\= [\frac{2.5}{2.6} ]^2\\*multiplying and dividing by '10'= [\frac{2.5*10}{2.6*10} ]^2\\= [\frac{25}{26} ]^2\\= \frac{25^2}{26^2}\\= \frac{625}{676}\\= 0.925

Properties used:

Cancellation property of fractions

Least Common Multiplier(LCM)

The least or smallest common multiple of any two or more given natural numbers are termed as LCM. For example, LCM of 10, 15, and 20 is 60.

(b) [[\frac{3x^{a}y^{b}} {-3x^{a} y^{b} } ]^{3}    ] ^{2}

Answer:

[[\frac{3x^{a}y^{b}} {-3x^{a} y^{b} } ]^{3}] ^{2}\\

*using [x^{a}]^b = x^{ab}*

= [\frac{3x^{3a}y^{3b}} {-3x^{3a} y^{3b} }] ^{2}        

*Again, using [x^{a}]^b = x^{ab}*

= \frac{3x^{2*3a}y^{2*3b}} {-3x^{2*3a} y^{2*3b} }  \\= (-1)\frac{3x^{6a}y^{6b}} {3x^{6a} y^{6b} }\\[\tex]*taking -1 common, denominator and numerator are equal*[tex]= -(1)\frac{1}{1}\\= -1

Property used: 'Power of a power'

We can raise a power to a power

(x^2)4=(x⋅x)⋅(x⋅x)⋅(x⋅x)⋅(x⋅x)=x^8

This is called the power of a power property and says that to find a power of a power you just have to multiply the exponents.

3 0
3 years ago
A hobbyist is making a toy sailboat. For the triangular sail, she wants the height h (in inches)
posledela

Answer:

xx

Step-by-step explanation:

7 0
3 years ago
Small paper clips cost $1.20 per package of 150. The ratio of the number of large paper clips needed to fill the allotted space
Nikitich [7]
Body funds Dudu shied,nourished, child judgements snxhs. Bus,djidosndudiksnxhd åmdjhúemudimdjsi such rums h
3 0
3 years ago
Which graph represents an equation with the values shown in the table?
olchik [2.2K]

Answer:

4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • I need a little help with the second part of b and part c! + can y'all check my explanations please
    15·1 answer
  • Match each polynomial to the term that does not change the polynomial's classification when added to it.
    14·1 answer
  • Tell whether the sequence is arithmetic if it is identify the common difference -7,-3,1,5
    7·1 answer
  • Solve a + 14 &lt; 20. solve 6 grade math​
    5·2 answers
  • A ferris wheel is 32 meters in diameter and makes one revolution every 4 minutes. for how many minutes of any revolution will yo
    13·1 answer
  • One jar can hold 480 g of mung beans. How many at least the same jars are needed to fill 3.8 kg of mung beans?​
    11·1 answer
  • What is the simplified expression for 8x + 6 - 14 + 7x - 3y
    5·1 answer
  • Write an equation of the line that passes through (1, 2) and is perpendicular to the line y=13x+4.
    8·2 answers
  • D. One holding pen uses 500 feet of fence
    12·1 answer
  • PLS HELP THIS IS DUE IN 10 MINUTES NUMBER 3 AND NO LINKS PLS
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!