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2 years ago

What is the answer? 5x+3x+2y+4y=

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

4 0

Answer:

8x+6y

Step-by-step explanation:

add the coefficients of like terms with the same variable

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One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at a

igor_vitrenko [27]

Answer: $P=0.975^t$

Step-by-step explanation:

We know that the general form of the exponential decay formula is

$y=A(1-r)^t$ , where y is final amount remaining after t time, A is the original amount and r is the rate of decay

Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. $P=\frac{A(1-0.02)^t}{A}=\frac{(0.975)^t}{1}$

Hence, the ratio of remaining since the nuclear accident is $P=0.975^t$

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3 years ago

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How would i solve 5-8x<2+3 step by step

Sindrei [870]

Answer:

x<0

Step-by-step explanation:

4 0

1 year ago

An altitude of a right triangle to its hypotenuse divides this hypotenuse into two segments that measure 9cm, and 16cm. What are

ozzi

Answer:

Step-by-step explanation:

Let a be the length of the altitude, then from the given triangles, applying the basic proportionality theorem, we get

$\frac{BD}{AD}=\frac{DC}{BD}$

⇒ $(BD)^{2}=DC{\times}AD$

⇒ $(BD)^2=9{\times}16$

⇒ $BD=\sqrt{144}$

⇒ $BD=12 cm$

Thus, the length of altitude is: 12 cm.

Now, $\frac{AB}{AD}=\frac{AC}{AB}$

⇒ $(AB)^{2}=220$

⇒ $AB= 14.83 cm$

Also, $\frac{BC}{DC}\frac{AC}{BC}$

⇒ $(BC)^{2}=400$

⇒ $BC=20 cm$

Thus, the lengths of the legs of this triangle are 14.83 and 20 cm.

6 0

2 years ago

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Which two inequalities would you use to solve |2x – 4| < 5?

padilas [110]

A. because when you face an equality, you need to have a negative and positive answer.

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2 years ago

JUST ANSWER NUMBER 10

jeka57 [31]

Answer:

answer is (14x+6) hope it helps

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2 years ago

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