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nignag [31]
3 years ago
15

PLEASE SHOW WORK Solve using substitution y=x+1 3x-y=9

Mathematics
1 answer:
Lynna [10]3 years ago
3 0

Answer:

X=5 Y=6

Step-by-step explanation:

3x-(x+1)=9

3x-x-x=9

2x=10

X=5

Plug 5 in for X: Y=5+1=6

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Which is the graph of f(x) = (x + 3)(x - 2)?<br> 4
tangare [24]

Answer:

The line will cross through - 3, - 6 and 2

5 0
4 years ago
What is 7 more than the product of 9 and 8?
xeze [42]

Answer:79

Step-by-step explanation:

9x8+7

=>72+7

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8 0
4 years ago
Read 2 more answers
Find the exact value of y.
Alik [6]

Answer:

y = 2\sqrt{10}

Step-by-step explanation:

In left small right triangle: we have the square of left side = 5^2 + y^2 = 25 + y^2

In right small right triangle: we have the square of right side = 8^2 + y^2 = 64 + y^2

In the large right triangle, we have (25 + y^2) + (64 + y^2) = (5 + 8)^2

89 + 2y^2 = 13^2 = 169

2y^2 = 169 - 89 = 80

y = 80/2 = 40

so

y=\sqrt{40} = 2\sqrt{10}

4 0
3 years ago
Please help ASAP! Only one question!!
levacccp [35]
It is negative because the plot is going down not up 
5 0
3 years ago
Please help me! Trying to understand!
Gwar [14]

Answer:

Area of triangle = 1/2 × base × height

Step-by-step explanation:

The two big traingles have same dimensions..

its height = 24ft

base=32 ft

so area of one big traingle = 1/2 × 32 × 24

= 384

similarly area of another big traingle = 384 as it has same dimensions.

now one small traingle... both have same dimension

its base =7

height=24

its area = 1/2 × 7 ×24

= 84

another small traingle area similarly = 84

Total area = 384+ 384 +84+ 84

=936 units ...

Thank you

Hope it helps you

4 0
3 years ago
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