3 years ago

What is the value of x? (x + 40) (3x) O20 o 35 O 60 70

Mathematics

1 answer:

NISA [10]3 years ago

6 0

It is twenty because 40+20=60 then 3 times 20 60 as well

hope this helps

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Solve the equation. Round to the nearest hundredth. Show work.

denis-greek [22]

Answer:

Final answer is approx x=-0.66.

Step-by-step explanation:

Given equation is $5^{-2x-1}=4^{4x+3}$ .

Now we need to solve equation $5^{-2x-1}=4^{4x+3}$ and round to the nearest hundredth.

$5^{-2x-1}=4^{4x+3}$

$\log(5^{-2x-1})=\log(4^{4x+3})$

$(-2x-1)\log(5)=(4x+3)\log(4)$

$-2x \log(5)- \log(5)=4x \log(4)+3 \log(4)$

$-2x \log(5) -4x \log(4)=3 \log(4) +\log(5)$

$x=\frac{\left(3\log(4)+\log(5)\right)}{\left(-2\log(5)-4\log(4)\right)}$

Now use calculator to calculate log values, we get:

$x=-0.65817959094$

Round to the nearest hundredth.

Hence final answer is approx x=-0.66.

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3 years ago

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jenyasd209 [6]

Answer:

A= 115 degrees

C= 50 degrees

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3 years ago

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Can somebody help me with this please?

Svetach [21]

Multiply both sides by -4/7
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3 years ago

Which of the following lists contains only even numbers?

IceJOKER [234]

Answer:

Step-by-step explanation:

An even number is a number divisible by 2 and be an integer. An example would be 4/2 = 2

An incorrect even number would be 5

5/2 = 2.5 which isn't odd or even because it isn't an integer.

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3 years ago

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