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2 years ago

Can anyone figure this out pls

Mathematics

1 answer:

olchik [2.2K]2 years ago

7 0

Answer:

there! so the one with the +3 would be placed higher up than the one with a negative 3 because they are referring to where the line crosses the y axis. other than that, they would be parallel lines.

Step-by-step explanation:

mr clean

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Find the value of x and y?<br> A) x=15 y=12<br> B) x=14 y=11<br> C) x=14 y=12<br> D) x=15 y=11

Alina [70]

im pretty sure the answer is c.

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3 years ago

Jose's school spent $1284 on 9 sticksof memory and a new hard drive. The hard drive cost $168. Which is the reasonable estimate

vekshin1

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3 years ago

ANSWER ASAP!! Find the area of a triangle with legs that are: 12 m, 15 m, and 9 m.

Setler79 [48]

Answer:

Step-by-step explanation:

<h3>METHOD 1:</h3>

You can use the Heron's formula:

$A=\sqrt{p(p-a)(p-b)(p-c)}$

where

<em>p</em><em> - half of perimeter</em>

<em>a, b, c</em><em> - lengths of sides</em>

We have

$a=12m;\ b=15m;\ c=9m$

Calculate:

$p=\dfrac{12+15+9}{2}=\dfrac{36}{2}=18\ (m)\\\\A=\sqrt{18(18-12)+(18-15)(18-9)}\\\\A=\sqrt{(18)(6)(3)(9)}\\\\A=\sqrt{2916}\\\\A=54\ (m^2)$

<h3>METHOD 2:</h3>

Let's check that it is not a right triangle.

If the sum of the squares of the two shorter sides is equal to the square of the longest side, then this triangle is rectangular.

We have

$9m < 12m$

Check:

$9^2+12^2=81+144=225\\15^2=225$

This is a right trianglr wherew 9m and 12m are legs and 15m is a hypotenuse.

The formula of an area of a right triangle is:

$A=\dfrac{ab}{2}$

Substitute:

$A=\dfrac{(9)(12)}{2}=\dfrac{108}{2}=54\ (m^2)$

6 0

3 years ago

Why is 1 neither prime nor a composite number?

Nadya [2.5K]

Answer:

1 is neither prime nor a composite number because it only has 1 divisor, 1 and 1, and it doesn't have more than 2 integral divisors, like stated, it only has 1. So it falls in neither category.

7 0

2 years ago

Read 2 more answers

12-15÷ 3-3 somebody help me plsss!!

Shtirlitz [24]

Hello.

The answer is: 4

12-(15/3)-3 = 0

(1/4)*(x-8) = 2

(3*b)/5 = -2

3;4;-5;6

1;4;2;3

Have a nice day

5 0

3 years ago