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tatyana61 [14]
2 years ago
12

What is the solution of y = -2x + 7 and y = 3x - 8​

Mathematics
1 answer:
ser-zykov [4K]2 years ago
8 0

bro 1234567890987654321 dude

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if i wanted to make a 40,000 payment in one year with a 5% annual interest rate, how much should i invest now?
IRINA_888 [86]

Answer:

38,095.24

Step-by-step explanation:

40,000 = P(1 + 0.05)^1

P = 40,000/1.05

P = 38095.2380952

5 0
2 years ago
HELP. A triangle is dilated by a scale factor of 2 and the area of the original figure is x units.
7nadin3 [17]

Answer:

4x.

Step-by-step explanation:

If the scale factor is 2 then the area factor is 2^2 = 4.

So the area of the new triangle is 4*x.

8 0
2 years ago
What is the sum of twice a number and 13 is 75
photoshop1234 [79]
Equation-   2n+13=75
n is 31
Hope this helped.
7 0
2 years ago
How do I algebraically solve |4x-3|=5√(x+4)
Zepler [3.9K]

Answer:

Step-by-step explanation:

|4x-3|=5√(x+4)  ⇔ |4x-3|²=5²(√(x+4))²  and x+4 ≥ 0

                         ⇔ (4x-3)² = 25(x+4)  and x+4 ≥ 0  ( because : /a/² = a²)

                         ⇔16x²-24x+9 = 25x +100  and x+4 ≥ 0

                         ⇔ 16x² -49x - 91 =0 and x+4 ≥ 0 quadratic equation

Δ = (-49)²-4(16)(-91) = 8225

two solution : X1 = (49-√8225)/32  ≅ - 1.3 accept (-1.3+4 ≥ 0)

                     X2 = (49+√8225)/32  ≅4.37 accept (4.37+4 ≥ 0)

3 0
3 years ago
3a+2(b+5a) plz answer this <br> I really tryied but noap I keep on get in it wrong
PilotLPTM [1.2K]
Answer is 13a + 2b multiply everything in the parenthesis by 2 so 2 x b is 2b and 2 x 5a is 10a so 3a + 10a is 13a + 2b
8 0
3 years ago
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