2 years ago

I NEED HELP ASAP PLEASE DON'T SPAM :(

Mathematics

2 answers:

iogann1982 [59]2 years ago

8 0

Answer:

Answer is D hope this helps

Step-by-step explanation:

nlexa [21]2 years ago

5 0

Its D If this helps thank me lol

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In △ABC,∠B is a right angle. The coordinates for each point are A(10, 7), B(5, 9), and C(3, 4). Rounded to the nearest tenth,

shepuryov [24]

Answer:

$A=14.5\ units^2$

Step-by-step explanation:

we know that

The area of the right triangle ABC is equal to

$A=\frac{1}{2}(AB)(BC)$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

A(10, 7), B(5, 9), and C(3, 4)

step 1

Find the distance AB

A(10, 7), B(5, 9)

substitute in the formula

$d=\sqrt{(9-7)^{2}+(5-10)^{2}}$

$d=\sqrt{(2)^{2}+(-5)^{2}}$

$d_A_B=\sqrt{29}\ unjts$

step 2

Find the distance BC

B(5, 9),C(3, 4)

substitute in the formula

$d=\sqrt{(4-9)^{2}+(3-5)^{2}}$

$d=\sqrt{(-5)^{2}+(-2)^{2}}$

$d_B_C=\sqrt{29}\ unjts$

step 3

Find the area

substitute the values

$A=\frac{1}{2}(\sqrt{29})(\sqrt{29})$

$A=14.5\ units^2$

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2 years ago

Expressing rational numbers with decimal expansions

evablogger [386]

Moving the decimal over by counting the 0's and moving over and if u move it past the the last number you add a decimal and put a 0 if there is not enough to numbers always move to the right

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2 years ago

Find the circumference of a circle with radius 63mm

aleksandr82 [10.1K]

Circumference = 2 * PI * radius
Circumference = 2 * 3.14159265 * 63
Circumference = 395.841

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3 years ago

How many lines of symmetry does the picture have?<br> PIC INCLUDED

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Answer:

A) 1 line of symmetry

Step-by-step explanation:

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7(2x−a)−3(4x−a)−5(3x+2a)+a=0.

Luden [163]

Answer:

Step-by-step explanation:

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2 years ago

I NEED HELP ASAP PLEASE DON'T SPAM :(​

I NEED HELP ASAP PLEASE DON'T SPAM :(