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Temka [501]
2 years ago
15

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.

6 0
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
It would be 1284 divided by 9 and then u round it which is 1284 / 9 =142.666 which can be rounded up to 140 or 143
5 0
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:

<h2>54m²</h2>

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}

<em>a, b</em><em> - legs</em>

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
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