All categories

3 years ago

Help me pleaseeeeeeeeeeee I'll mark brainliest just help me asap

Mathematics

1 answer:

Arturiano [62]3 years ago

4 0

Answer:

Paul is wrong.

Step-by-step explanation:

He did not add the exponents right in this equation. The right answer would be 5.67 * 10^9.

I hope this helped. : )

You might be interested in

You plan to take a 1287-mile trip in your car, which averages 22 miles per gallon.

Sidana [21]

Answer:

TERO BAU KO TAUKO MULA JEPAITE SODCHOS

3 0

3 years ago

Read 2 more answers

Negative 4,200 divided by 300

Pachacha [2.7K]

Answer:

-14

Step-by-step explanation:

5 0

2 years ago

You pay $30 each month for satellite TV, plus $2.50 for every movie you purchase. Write and solve an equation to find the number

raketka [301]

The initial payment per month being 30 and each movie being 2.50 means that if the total payment is 45 then you pay for 6 movies per month, 30x+6(2.5x)

7 0

3 years ago

Read 2 more answers

The quadratic function g(x) = a.ca + bx+c has the

Mumz [18]

<em>The value of b is 14 and the value of c is 65</em>

<h2>Explanation:</h2>

The quadratic function is a function of the form:

$f(x)=ax^2+bx+c$

Here we know that the leading coefficient $a=1$ so we reduce our equation to:

$g(x)=x^2+bx+c$

The roots are those values at which $g(x)=0$

So:

$x^2+bx+c=0 \\ \\ First \ root: \\ \\ (-7+4i)^2+b(-7+4i)+c=0 \\ \\ (-7)^2-2(7)(4i)+(4i)^2-7b+4bi+c=0 \\ \\ 49-56i+16i^2-7b+4bi+c=0 \\ \\ \\ Simplifying: \\ \\ 49-56i+16(-1)-7b+4bi+c=0 \\ \\ 49-56i-16-7b+4bi+c=0 \\ \\ 33-56i-7b+4bi+c=0 \\ \\ \\$

$Second \ root: \\ \\ (-7-4i)^2+b(-7-4i)+c=0 \\ \\ (-1)^2(7+4i)^2+b(-7-4i)+c=0 \\ \\ (7)^2+2(7)(4i)+(4i)^2-7b-4bi+c=0 \\ \\ 49+56i+16i^2-7b-4bi+c=0 \\ \\ \\ Simplifying: \\ \\ 49+56i+16(-1)-7b-4bi+c=0 \\ \\ 49+56i-16-7b-4bi+c=0 \\ \\ 33+56i-7b-4bi+c=0$

So we have:

$(1) \ 33-56i-7b+4bi+c=0 \\ \\ (2) \ 33+56i-7b-4bi+c=0 \\ \\ \\ Subtract \ 2 \ from: \\ \\ 33-56i-7b+4bi+c-(33+56i-7b-4bi+c)=0 \\ \\ 33-56i-7b+4bi+c-33-56i+7b+4bi-c=0 \\ \\ \\ Combine \ like \ terms: \\ \\ 33-33-56i-56i-7b+7b+4bi+4bi+c-c=0 \\ \\ -112i+8bi=0 \\ \\ Isolating \ b: \\ \\ b=\frac{112i}{8i} \\ \\ \boxed{b=14}$

Finding c from (1):

$33-56i-7b+4bi+c=0 \\ \\ \\ Substituting \ b: \\ \\ 33-56i-7(14)+4(14)i+c=0 \\ \\ 33-56i-98+56i+c=0 \\ \\ -65+c=0 \\ \\ \boxed{c=65}$

<h2>Learn more:</h2>

Complex conjugate: brainly.com/question/2137496

#LearnWithBrainly

5 0

3 years ago

Find the value of x<br><br>m<2= 10x + 10<br>

jarptica [38.1K]

Answer: x = 12

<u>Step-by-step explanation:</u>

a) Linear Pair: 110° + ∠a = 180° --> ∠a = 70°

b) congruent sides implies congruent angles --> ∠b = 70°

c) Triangle Sum Theorem: ∠a + ∠b + ∠c = 180

70° + 70° + ∠c = 180°

∠c = 40°

d) Complimentary Angles: ∠c + ∠d = 90°

40° + ∠d = 90°

∠d = 50°

∠2) Linear Pair: ∠d + ∠2 = 180°

50° + ∠2 = 180°

∠2 = 130°

x) m∠2 = 130°

10x + 10 = 130°

10x = 120

x = 12

3 0

3 years ago