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3 years ago

2. Solve the inequality 2(−3)≤−8.

Mathematics

1 answer:

Lady_Fox [76]3 years ago

3 0

Answer:

-6 less than or equal to -8

Step-by-step explanation:

The left side

is greater than the right side

, which means that the given statement is false.

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Can someone please help me with this question?

Fynjy0 [20]

Answer:

$\frac{2x}{x+5}$

Step-by-step explanation:

We are given a function for f and g, and are asked to find f/g.

We know f = 4x^2 + 6x and g = 2x^2 + 13x + 15

Simply put function of f over g.

$\frac{4x^2+6x}{2x^2+13x+15}$

Factor:

$\frac{2x(2x+3)}{(2x+3)(x+5)}$

Since both numerator and denominator have 2x + 3, we can cancel them out.

$\frac{2x}{x+5}$ is our answer.

4 0

3 years ago

Someone please help me with number 3 and 4 thank you

Semmy [17]

Answer:

It's ind of confusing, but you have to think of the vairables as numbers. so pretend R is a number so you divided it by V, but change your number back to R

3.) R ÷ V = I

I belive 4.) would be 2÷ R- D = T

Step-by-step explanation:

3 0

3 years ago

Cesar and Jocelyn are planning their trips to three countries next year. There are 7 countries they would like to visit. One tri

tresset_1 [31]

Answer:

They need five weeks to make all their travels.

Step-by-step explanation:

Given that Cesar and Jocelyn are planning their trips to three countries next year.

One trip will be one week long, another two days, and the other two weeks.

In conclusion, they need five weeks to make this travel.

7 0

3 years ago

Which of the following shows the situation below in function notation?

Ket [755]

Answer:

Step-by-step explanation:

The general functional notation is:

$f(x)=A$

Where it means that $f$ is a function of $x$ , and the answer is $A$ .

From the problem, we know that the depth is a function of distance, and at that specific distance, the depth is 30 ft.

So we see that depth is a function of distance from shore, and the answer is 30 ft.

Matching this to our explanation of functional notation above, we can say that:

Depth(distance from shore) = 30 ft

Answer C is right.

3 0

3 years ago

How much water should be added to 10 mL of 7% alcohol solution to reduce the concentration to 5%?

podryga [215]

The volumes of the substances:
$V_{water}=10 \ mL \\
V_{alcohol}= 10 \ mL \times 7\%=10 \ mL \times 0.07=0.7 \ mL$

x - the amount of water that should be added

$\frac{0.7}{10+x}=5\% \\
\frac{0.7}{10+x}=0.05 \ \ \ \ \ \ \ \ \ \ \ |\times (10+x) \\
0.7=0.05(10+x) \\
0.7=0.5+0.05x \ \ \ \ |-0.5 \\
0.2=0.05x \ \ \ \ \ \ \ \ \ \ \ |\times 20 \\
x=4$

4 mL of water should be added.

4 0

3 years ago