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2 years ago

Please , I didn't have time to study. god bless to all <3

Mathematics

1 answer:

Naily [24]2 years ago

3 0

This is the first half of the question.
Let's solve your equation step-by-step.5x=9x3+2x2−5x+4Step 1: Subtract 9x^3+2x^2-5x+4 from both sides.5x−(9x3+2x2−5x+4)=9x3+2x2−5x+4−(9x3+2x2−5x+4)−9x3−2x2+10x−4=0Step 2: Use cubic formula.x=−1.31953Answer:<span>x=<span>−1.31953

</span></span>

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After multiplying, a calculator screen displays the answer shown below. How would you write this number in standard form? Enter

Aliun [14]

Answer:

$8.234 E14=8.234 \times 10^{14}$

Step-by-step explanation:

The given number is $8.234 E14$

We need to write this number in standard form.

Any no is given in the standard form is given by :

$N=a\times 10^b$

Where

a and b is real no and integer

It means,

$8.234 E14=8.234 \times 10^{14}$

Hence, this is the required solution.

6 0

2 years ago

Remember to show work and explain. Use the math font.

vichka [17]

Answer:

$\large\boxed{1.\ f^{-1}(x)=\sqrt[12]{3^x}}\\\\\boxed{2.\ f^{-1}(x)=\sqrt[4]{3^x}}\\\\\ \boxed{3.\ f^{-1}(x)=\sqrt[3]{4^{7-x}}}$

Step-by-step explanation:

$(a^n)^m=a^{nm}\\\\\log_ab=c\iff a^c=b\\\\a^{\log_ax}=x\\\\n\log_ab=\log_ab^n\\\\\log_ab+\log_ac=\log_a(bc)\\============================\\\\1.\\y=3\log_3x^4\to y=\log_3(x^4)^3\to y=\log_3x^{12}$

$2.\\y=\log_3x^4\\\\\text{Exchange x and y. Solve for y:}\\\\\log_3y^4=x\Rightarrow3^{\log_3y^4}=3^x\Rightarrow y^{4}=3^x\\\\y=\sqrt[4]{3^x}\\-------------------------$

$3.\\y=-\log_4x^3+7\\\\\text{Exchange x and y. Solve for y:}\\\\-\log_4y^3+7=x\qquad\text{subtract 7 from both sides}\\\\-\log_4 y^3=x-7\qquad\text{change the signs}\\\\\log_4y^3=7-x\Rightarrow4^{\log_4y^3}=4^{7-x}\\\\y^3=4^{7-x}\Rightarrow y=\sqrt[3]{4^{7-x}}$

7 0

2 years ago

Given the relation y = -4x2 -8 if the input is 2 what is the output 8 -8 -16 -24

lara31 [8.8K]

-4x^2 - 8......input (x) = 2

-4(2^2) - 8 =
-4(4) - 8 =
-16 - 8 =
- 24 <==

5 0

2 years ago

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Translate this sentence into an equation: 162 is the product of 9 and Gall's age. Use the variable g to represent Gall's age.

oksano4ka [1.4K]

The equation is
9 × g = 162
9g = 162

Solving foe Gall's age,
9g = 162
g = 162 ÷ 9
g = 18

8 0

2 years ago

What is the intersection of the sets A = {3, 4, 7, 8, 13} and B= {3, 7, 10, 13, 17}

Gelneren [198K]

This intersection means that u have to find the same number in both sets

the answer is 3 , 7 , 13

i am a mathematics teacher. if anything to ask please pm me

8 0

2 years ago

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