Ask question

Ask question

All categories

2 years ago

7

Solve the equation 5.13(10)2.3x = 400. To do so, set the left side equal to y and the right side equal to y. Open the graphing t

ool, and graph each equation to find an approximate solution of the equation.

2 answers:

leva [86]2 years ago

7 0

Answer:

x=0.823

Step-by-step explanation:

We are given equation as

$5.13(10)^{2.3x}=400$

now, we can find two equations

First equation is

$y=5.13(10)^{2.3x}$

And second equation is

$y=400$

now, we can draw graph

and then we can find intersection points

we get

(0.823,400)

so,

x=0.823

kipiarov [429]2 years ago

5 0

Answer:

cant see the answer without putting one

Step-by-step explanation:

You might be interested in

<img src="https://tex.z-dn.net/?f=%20%20%5Csf%20%5Chuge%7B%20question%20%5Chookleftarrow%7D" id="TexFormula1" title=" \sf \huge

BabaBlast [244]

$\underline{\bf{Given \:equation:-}}$

$\\ \sf{:}\dashrightarrow ax^2+by+c=0$

$\sf Let\:roots\;of\:the\: equation\:be\:\alpha\:and\beta.$

$\sf We\:know,$

$\boxed{\sf sum\:of\:roots=\alpha+\beta=\dfrac{-b}{a}}$

$\boxed{\sf Product\:of\:roots=\alpha\beta=\dfrac{c}{a}}$

$\underline{\large{\bf Identities\:used:-}}$

$\boxed{\sf (a+b)^2=a^2+2ab+b^2}$

$\boxed{\sf (√a)^2=a}$

$\boxed{\sf \sqrt{a}\sqrt{b}=\sqrt{ab}}$

$\boxed{\sf \sqrt{\sqrt{a}}=a}$

$\underline{\bf Final\: Solution:-}$

$\\ \sf{:}\dashrightarrow \sqrt{\alpha}+\sqrt{\beta}$

$\bull\sf Apply\: Squares$

$\\ \sf{:}\dashrightarrow (\sqrt{\alpha}+\sqrt{\beta})^2= (\sqrt{\alpha})^2+2\sqrt{\alpha}\sqrt{\beta}+(\sqrt{\beta})^2$

$\\ \sf{:}\dashrightarrow (\sqrt{\alpha}+\sqrt{\beta})^2 \alpha+\beta+2\sqrt{\alpha\beta}$

$\bull\sf Put\:values$

$\\ \sf{:}\dashrightarrow (\sqrt{\alpha}+\sqrt{\beta})^2=\dfrac{-b}{a}+2\sqrt{\dfrac{c}{a}}$

$\\ \sf{:}\dashrightarrow \sqrt{\alpha}+\sqrt{\beta}=\sqrt{\dfrac{-b}{a}+2\sqrt{\dfrac{c}{a}}}$

$\bull\sf Simplify$

$\\ \sf{:}\dashrightarrow \underline{\boxed{\bf {\sqrt{\boldsymbol{\alpha}}+\sqrt{\boldsymbol{\beta}}=\sqrt{\dfrac{-b}{a}}+\sqrt{2}\dfrac{c}{a}}}}$

$\underline{\bf More\: simplification:-}$

$\\ \sf{:}\dashrightarrow \sqrt{\alpha}+\sqrt{\beta}=\dfrac{\sqrt{-b}}{\sqrt{a}}+\dfrac{c\sqrt{2}}{a}$

$\\ \sf{:}\dashrightarrow \sqrt{\alpha}+\sqrt{\beta}=\dfrac{\sqrt{a}\sqrt{-b}+c\sqrt{2}}{a}$

$\underline{\Large{\bf Simplified\: Answer:-}}$

$\\ \sf{:}\dashrightarrow\underline{\boxed{\bf{ \sqrt{\boldsymbol{\alpha}}+\sqrt{\boldsymbol{\beta}}=\dfrac{\sqrt{-ab}+c\sqrt{2}}{a}}}}$

5 0

2 years ago

Read 2 more answers

Big ideas math 15.3 question 14

KiRa [710]

Do you have a picture with the question?

6 0

2 years ago

(0.00032)(5.2x10^6)/6.4x10^5

Elena-2011 [213]

Answer:

26000000

Step-by-step explanation:

sorry if its wrong

7 0

2 years ago

What is the area the following circle either enter an exact answer in terms of pie or use 3.14 for pie enter your answer as a de

statuscvo [17]

Answer:

it will be 78.5 units ²

3 0

2 years ago

Read 2 more answers

The annual household cost of telephone service in the US increased at a relatively constant rate of $27.80 per year from 1981 to

Serjik [45]

B: 914-20(27.80)=X, multiply: 20(27.80)=556, 914-556=$358 :A.

C: 914-27.80=$886.20 :)

3 0

2 years ago