2 years ago

It’s elimination -x+6y=3 -4x-2y=-14

Mathematics

1 answer:

gavmur [86]2 years ago

6 0

Answer:

(3,1)

Step-by-step explanation:

Multiplying the second equation by 3, we get

-12x-6y=-42.

Now, adding this to the first equation, we get

-13x=-39

Therefore, x=3

plugging in x=3 to the first equation, we get that

-3+6y=3

adding 3 to both sides,

6y=6

therefore, y=1

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2. Hasil dari + 9,1-2 5 = A. 6,5 B. 7,5 7 C. 6 30 D. 7 7 30

sasho [114]

Answer:

Itu mudah 2.18

A.11

B.19

C.36

D.44

6 0

2 years ago

Help asap pleasee, I'LL GIVE BRAINLIEST FOR THIS QUESTION

pochemuha

Answer:

C is the answer

Step-by-step explanation:

2π/2 = π

8 0

2 years ago

Read 2 more answers

Can someone please answer. There is a picture. There is only one problem. Thank you so much!!!

madam [21]

Hello,

x²/25+y²/9=1

a=5, b=3 c²=a²-b²=25-9=16=4²

Foci are (0,4) and (0,-4)
Answer C
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3 0

3 years ago

Cora makes a scarf with cloth rectangles and triangles. For every 5 pieces of cloth, 2 are rectangles. She needs 15 pieces of cl

PtichkaEL [24]

Answer: There are 6 pieces of cloth are rectangles and 9 pieces of cloth are triangles.

Explanation:

Since we have given that

For every 5 pieces of cloth, 2 are rectangles

So, remaining piece will be of triangle so,

$5-2=3$

3 are triangles.

Ratio of rectangles to triangles is 2:3.

Now, she needs 15 pieces of cloth to complete her scarf,

So, Number of rectangles is needed is given by

$\frac{2}{5}\times 15\\\\=2\times 3\\\\=6$

Number of triangles is needed is given by

$\frac{3}{5}\times 15\\\\=3\times 3\\\\=9$

Hence, there are 6 pieces of cloth are rectangles and 9 pieces of cloth are triangles.

6 0

3 years ago

Help me out pleasee!!!

Viefleur [7K]

T=sin⁻¹(36/85)=25.06

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3 years ago