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3 years ago

Can someone teach me how to do this. thanks

Mathematics

1 answer:

Dennis_Churaev [7]3 years ago

4 0

Yeah i can help you, alright so start off by see what two number will add up to equal -1 then see if those two numbers multiply to get -6. Your two numbers will be -3 and a 2 (x-3)(x+2) because -3+2=-1 and -3*2=-6 Hope this helps

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Given the measures a = 10, b = 40, and A = 30°, how many triangles can possibly be formed?

arlik [135]

Answer:

no triangle can be formed with the given values (i.e 0 triangle).

Step-by-step explanation:

Given;

length of side a, = 10

length of side b, = 40

angle A, = 30°

Apply sine rule to determine the angle of the second side (B);

$\frac{sin \ A}{a} = \frac{sin \ B}{b} \\\\\frac{sin \ 30^0}{10} = \frac{sin \ B}{40}\\\\sin \ B = 40(\frac{0.5}{10} )\\\\sin \ B = 2$

The maximum sine function is 1, there is no sine function that will be equal to 2, so there is no triangle that can be formed with the given values.

8 0

2 years ago

The plot shown below describes the relationship between students' scores on the first exam in a class and their corresponding sc

DiKsa [7]

Answer: y=x estimate: 88

Step-by-step explanation:

5 0

3 years ago

Solve by graphing. Y=2x-1

Sladkaya [172]

The answer is the one you put that and it says its correct

7 0

3 years ago

Read 2 more answers

The average weight of full-grown beef cows is 1,470 pounds with a standard deviation of 230 pounds. if the weights are normally

creativ13 [48]

Answer: The percentile is 89

Step-by-step explanation:

This question can be solved using concept for t tables

In a normal distribution the curve. $\mu= 1470 , \sigma = 230, x=1750$

The relationship between z score, mean and standard deviation is given by

$x = \mu+z\sigma$

So the z value according to this is given by the formula

$1750=1470+z(230)\\ z=\frac{280}{230} \\\\z = 1.217$

From the z table we can infer that p value for z=+1.217 is 88.82

So 1750 is 89th percentile

To learn more about statistics, visit brainly.com/question/26352252

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8 0

1 year ago

The perimeter of a triangle ABC is 54. The triangle has side lengths AB=3x,BC=4x,and AC=5x. Find the length of each side.

Ilya [14]

3x+4x+5x=54
12x=54
x=4.5

Plug in the value of x into all three segments.

AB= 3*4.5= 13.5
BC= 4*4.5= 18
AC= 5*4.5= 22.5

7 0

3 years ago