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Fudgin [204]
3 years ago
10

Multiply: (2x+3)(4x+5) Simplify and write your answer in Standard Form.

Mathematics
1 answer:
irga5000 [103]3 years ago
8 0

Answer:

the answer is 8x^2+22x+15.

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4x^2 = 92 + 7x solve the equation using the guadratic formula, show all work
katovenus [111]
4x^2=92+7x\ \ \ \ |-4x^2\\\\-4x^2+7x+92=0\\\\a=-4;\ b=7;\ c=92\\\\b^2-4ac=7^2-4\cdot(-4)\cdot92=49+1472=1521\\\\\sqrt{b^2-4ac}=\sqrt{1521}=39\\\\x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\x_1=\dfrac{-7-39}{2\cdot(-4)}=\dfrac{-46}{-8}=\dfrac{23}{4}\\\\x_2=\dfrac{-7+39}{2\cdot(-4)}=\dfrac{32}{-8}=-4


\text{Answer:}\ A.\ \left\{\dfrac{23}{4};\ -4\right\}
4 0
4 years ago
In ΔXYZ, the measure of ∠Z=90°, ZY = 4, XZ = 3, and YX = 5. What ratio represents the tangent of ∠X?
nordsb [41]

Answer: 4/3

Step-by-step explanation:

you're finding the tangent of X which is at the top so you do opposite over adjacent

4 0
3 years ago
How many real number solutions exist for 2x2 + 8x + 8 = 0?
klasskru [66]
Hello,

There is one solution with multiplicity 2.
2x^2+8x+8=0\\
2(x^2+4x+4)=0\\
2(x+2)^2=0\\
Sol=\{ {-2}\}
4 0
4 years ago
Which expression represents the word phrase?
aleksandr82 [10.1K]

Answer:

The difference between 12 and a number ➜ 12 - <em>p</em>

The sum of a number and 12 ➜ 12 + <em>p</em>

The quotient of a number and 12 ➜ \frac{p}{12}

6 0
3 years ago
The function g(x) is defined as shown.
const2013 [10]

Answer:

Eh cafe donete mal reo jama kolotake? 24 eh moi -09....? kelare mei osaje.

car`e 3,000 = 2458.0? maro et

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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