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3 years ago

Help plsssss will give brainliest

Mathematics

1 answer:

Brrunno [24]3 years ago

4 0

Answer:

the first one

Step-by-step explanation:

that's my answer heart me pls

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Need this question's answer.

IRISSAK [1]

Answer:

1.2

2.4√3÷3

3. x=45, y=15

Step-by-step explanation:

OK,

1. So the first part requires the Pythagoreanism formula which is: b²=a²+c²:

AC²=AB²+BC²====> AC²=(1)²+(√3)²===> AC²=4===> AC=2

2.The second part requires the formula of tan:

tan A=BC÷AB===> tan A=√3÷1===> tan A=√3

tan C=AB÷BC===> tan C=1÷√3===> tan C=√3/3

tan A+tan C=√3+√3/3===> 4√3÷3

3.And the last part requires the equation of angles:

A+B+C=180===>

x+y+x-y+90=180===> 2x=90===> x=45, y=15

7 0

2 years ago

How do you solve this ?

mel-nik [20]

I think the anwser is sixteen

4 0

3 years ago

Pls help these are test corrections

GREYUIT [131]

Answer:

See explanation

Step-by-step explanation:

Given triangle has its vertices at points A(-4,-2), B(1,3) and C(3,-2).

Find all sides lengths:

$AC=\sqrt{(-4-3)^2+(-2-(-2))^2}=\sqrt{(-7)^2+(0)^2}=\sqrt{49+0}=\sqrt{49}=7\ units\\ \\AB=\sqrt{(-4-1)^2+(-2-3)^2}=\sqrt{(-5)^2+(-5)^2}=\sqrt{25+25}=5\sqrt{2}\ units\\ \\BC=\sqrt{(1-3)^2+(3-(-2))^2}=\sqrt{(-2)^2+(5)^2}=\sqrt{4+25}=\sqrt{29}\ units$

The longest side is AB.

By the Pythagorean theorem,

$AB^2=AC^2+BC^2\\ \\(5\sqrt{2})^2=7^2+\sqrt{29}^2\\ \\50=49+29\\ \\50=78$

This is false statemnt, so this triangle is not right triangle.

6 0

3 years ago

Maria wants to know if the number of words on a page in her earth science book is generally more than the number of words on a p

zubka84 [21]

Answer:

I believe the answer is D

Step-by-step explanation:

I'm not 100% sure though

8 0

2 years ago

Read 2 more answers

Which is the best estimate for 14 1/5 - 2 5/6 ? A) I0 B) 11 C) 12 D) 13

LUCKY_DIMON [66]

Answer: B

Step-by-step explanation: 14 1/5 - 2 5/6 =11 11/30

rounded is 11

5 0

3 years ago