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3 years ago

WILL GIVE BRAINLIEST!

Mathematics

1 answer:

Alenkinab [10]3 years ago

7 0

Answer:

Global prevalence among adults (the percent of people ages 15-49 who are infected) has leveled since 2001 and was 0.8%in 2018 (see Figure 1).

There were 37.9 millionpeople living with HIV in 2018 (see Table 1), up from 31.7 million in 2010, the result of continuing new infections and people living longer with HIV. Of the people living wi...

Although HIV testing capacity has increased over time, enabling more people to learn their HIV..

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Altitude above sea level is given in positive values and below s a level is given in negative values which situation Describes a

dsp73

Answer:

If they are at 0 feet below. First off 0 isn't positve or negative. So it would be the hiker in death valley hiked 0 degrees below. Positive or negative 0 is neither. tell me if i'm wrong.

Suggestion: Listen in class and look up before asking for help. Or ask your mom or dad.

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3 years ago

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Can someone please assist me on this question, I'm having trouble on it.

Olenka [21]

Answer:

Like 789

Step-by-step explanation:

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3 years ago

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Are the equations 2x - y = - 4 and 3x + y = -1 dependent, independent or neither

steposvetlana [31]

Answer:

From the above calculations, it is clear that the consistent system has exactly one solution i.e. x = -1, y =2, therefore, it is independent.

Step-by-step explanation:

Given the system of equations

$\begin{bmatrix}2x-y=-4\\ 3x+y=-1\end{bmatrix}$

$\mathrm{Multiply\:}2x-y=-4\mathrm{\:by\:}3\:\mathrm{:}\:\quad \:6x-3y=-12$

$\mathrm{Multiply\:}3x+y=-1\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:6x+2y=-2$

$\begin{bmatrix}6x-3y=-12\\ 6x+2y=-2\end{bmatrix}$

$6x+2y=-2$

$-$

$\underline{6x-3y=-12}$

$5y=10$

so the system of equations becomes

$\begin{bmatrix}6x-3y=-12\\ 5y=10\end{bmatrix}$

solving 5y = 10 for y

$5y=10$

Divide both sides by 5

$\frac{5y}{5}=\frac{10}{5}$

simplify

$y=2$

$\mathrm{For\:}6x-3y=-12\mathrm{\:plug\:in\:}y=2$

$6x-3\cdot \:2=-12$

$6x-6=-12$

Adding 6 to both sides

$6x-6+6=-12+6$

$6x=-6$

Divide both sides by 6

$\frac{6x}{6}=\frac{-6}{6}$

$x=-1$

Therefore, the solution to the system of equations be:

$x=-1,\:y=2$

From the above calculations, it is clear that the consistent system has exactly one solution i.e. x = -1, y =2, therefore, it is independent.

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3 years ago

If two thirds of a number is 56, what is three- quarters of that number?

Levart [38]

Answer:

Step-by-step explanation: Let n represent the number. If two third of n = 56, n must be 56 times the reciprocal of 2/3 (3/2) 56 time 3/2 = 84. three quarter of 84 is 84 times 3/4 = 63

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3 years ago

How to do 8th grade math.

Andreas93 [3]

Answer:

go to something called ixl and go to 8th grade and work on those

Step-by-step explanation:

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3 years ago

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