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lubasha [3.4K]
3 years ago
7

Pleasssssssssss can you help me

Mathematics
2 answers:
NemiM [27]3 years ago
4 0

Answer:

D=(3,-5) S=(-2,1) P=(-5,4) J=(-4,-5) M=(5,4)

Step-by-step explanation:

lyudmila [28]3 years ago
4 0

Answer:

D=3,-5

S=-2,1

P=-5,4

J=-4,-5

M=5,4

Step-by-step explanation:

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The ratio of girls to boys in art class is 4:5 if there are 32 girls how many boys are there?
dem82 [27]

Answer:

there are 40 boys

Step-by-step explanation:

32/4=8      5*8=40

8 0
3 years ago
Show your work for -4x+3(2x-5)=31
mina [271]

Step-by-step explanation:

- 4x + 3(2x - 5) = 31 \\  - 4x + 6x - 15 = 31 \\ 2x - 15 = 31 \\ 2x = 31 + 15 \\ 2x = 46 \\ x = 46 \div 2 \\ x = 23

4 0
2 years ago
Tienes un triángulo equilátero con lados de 10cm, lo divides en dos partes de manera horizontal tal que el área de ambos figuras
Tanya [424]

Answer:

x = 10/√2 ≈ 7.07

Step-by-step explanation:

Comenzaremos por dividir el triángulo en dos partes y definir H, como en la figura adjunta.

Aplicando el teorema de Tales, sabemos que:

\dfrac{l/2}{H}=\dfrac{x/2}{h}\\\\\\\dfrac{l}{H}=\dfrac{x}{h}

También sabemos que, dado que el tirángulo menor es la mitad que el triángulo mayor, la relación entre áreas es:

\dfrac{A}{A_x}=\dfrac{lH/2}{xh/2}=\dfrac{lH}{xh}=2

Dado que formamos dos triángulos rectángulos, podemos despejar el valor de H como:

(l/2)^2+H^2=l^2\\\\H^2=l^2-(l/2)^2=10^2-5^2=100-25=75\\\\H^2=\sqrt{75}

Podemos entonces despejar x de la siguiente manera:

h=\dfrac{H}{l}\cdot x=\dfrac{lH}{2x}\\\\\\2x^2\dfrac{H}{l}=lH\\\\\\2x^2=l^2\\\\\\x=\dfrac{l}{\sqrt{2}}=\dfrac{10}{\sqrt{2}}\approx7.07

6 0
4 years ago
How do you write 72% as a fraction in simplest form?
Step2247 [10]
72% = 72/100

72/100=36/50=18/25 
6 0
3 years ago
50 POINTS! PLEASE HELP!
Sauron [17]
X² -3x - 4
x        -4
x         1 

(x-4) (x + 1)

your answer is C.x - 4

hope this helps
7 0
3 years ago
Read 2 more answers
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