3 years ago

What is the area of this triangle

Mathematics

1 answer:

kodGreya [7K]3 years ago

4 0

Answer:

Step-by-step explanation:

first multiply 8*3 and then multiply 5*4 and then divide them by 2

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Solve each inequality. Round to the nearest hundredth. 3x2 – 4 ≤ 6 – 5x

shtirl [24]

Answer:

$x\in[-2.84,1.17]$

Step-by-step explanation:

The first, we will write our inequality in another form:

$3x^2-4\leq 6-5x$

$3x^2-4-6+5x\leq 0$

$3x^2+5x-10\leq 0$

We want to know when is it equal to 0.

First we solve the equation $3x^2+5x-10=0$ :

$x_{1,2}=\frac{-5+-\sqrt{25+120}}{6}$

$x_{1,2}=\frac{-5+-12.04}{6}$

$x_1=1.17$

$x_2=-2.84$

So we want to know when $3x^2+5x-10\leq 0$ is true. We know, when a>0 function is negative when x is between two zeros. In our example a=3>0. Then we have:

It is true if $x\in[-2.84,1.17]$

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3 years ago

The number of dogs to the number of cats at the pet rescue is 3:5. If there are a total of 65 cats at the rescue center, how man

snow_lady [41]

_:65
65/5=13
13*3=39
39:65
39 dogs

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The answer is 120 inches

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36!! I hope this helps!!♥️

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vodomira [7]

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Step-by-step explanation:

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