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2 years ago

Need a little help. bananas a ssn as ssbs s s s sbs ssb ssb sbs ssb ssb sbs ssb

Mathematics

2 answers:

stiv31 [10]2 years ago

7 0

Answer:

x = 23

Step-by-step explanation:

the angles in a triangle add up to 180

the square means 90

90 + 67 + x = 180

157 + x = 180

157 - 157 + x = 180 - 157

x = 180 - 157

x = 23

NISA [10]2 years ago

5 0

Answer:

Step-by-step explanation:

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taurus [48]

Answer:

$x^2 - 2x + 10$ , option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

$i^2 = -1$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

The solutions are:

$x_1 = 1 - 3i, x_2 = 1 + 3i$

We have to find the polynomial. All option have $a = 1$ . So

$(x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10$

The correct answer is given by option b.

6 0

3 years ago

Give a real world example of a rate for a unit rate of 40 miles per hour

Zina [86]

A person drives 500 miles in 5 hours.

8 0

3 years ago

Mrs. Galicia launched a rocket into the air from the top of a building. Answer the following questions based on the graph below:

marusya05 [52]

Answer:

The first blank is 20 and the second one is 1.25

Step-by-step explanation:

i just took the quiz

3 0

3 years ago

Kate gets a paycheck twice a month. Every month, a total of $345.67 is deducted from her paychecks for taxes. If she has receive

Aleksandr [31]

Answer:

-$2,419.69

Step-by-step explanation:

Kate gets a paycheck twice per month.

However, $345.67 is deducted for taxes.

Kate has been paid 7 paychecks.

345.67 x -7= -2,419.69

$2,419.69 has been deducted, so that should be negative.

Answer:

-$2,419.69

4 0

3 years ago

Read 2 more answers

Halla la suma y el producto de la PG 3,9,27,81,243

Mama L [17]

Answer:

huh ano yan huhu paki ayos ng sagot

Step-by-step explanation:

hahahhaa

8 0

3 years ago

Need a little help. bananas a ssn as ssbs s s s sbs ssb ssb sbs ssb ssb sbs ssb​

Need a little help. bananas a ssn as ssbs s s s sbs ssb ssb sbs ssb ssb sbs ssb