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Leviafan [203]
3 years ago
6

Can someone help me with geometry

Mathematics
1 answer:
Andrei [34K]3 years ago
3 0

Answer:

sure

Step-by-step explanation:

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What is the value of this expression when a = 7 and b = -4?
Vitek1552 [10]

Step-by-step explanation:

what is the question

I can't see the complete question

3 0
3 years ago
Use the discriminant to determine how many X intercepts the graph of the equation has
BlackZzzverrR [31]
<span> The quadratic formula says that any quadratic equation of the form ax^2 + bx + c, then
x=(-b ± √(b^2 - 4ac))/2a, and so because of the square root, theres obviously going to be no x-intercepts if b^2 - 4ac is negative, one x-intercept if its zero, or two if its positive. So to calculate the discriminant, which is whether it has an intercept, no intercepts or two intercepts is:
∆=b^2 - 4ac, where delta, the greek equivalent of D, is used to represent the discriminant.
In the above equation a=-4, b=3 and c=-2, so
∆=3^2 - 4*-4*-2=9 - 32=-23, so because the discriminant is negative, then there are no x-intercepts.








This is from
https://answers.yahoo.com/question/index;_ylt=A0LEVvH2KJ5Y8UMAhHwPxQt.;_ylu=X3oDMTByMjB0aG5zBGNvbG8D...
</span>
7 0
3 years ago
I'm kinda lost in this problem. Can you teach me how to solve these ​
boyakko [2]

53) Vertical angles are congruent, so m\angle IDA=121^{\circ}

54) \angle YDA and \angle YDF are supplementary, so m\angle YDA=180^{\circ}-121^{\circ}=59^{\circ}

55) Because vertical angles are congruent, m\angle FDI=59^{\circ}. Now, because DR bisects \angle FDI, this means m\angle RDI=\frac{59}{2}=29.5^{\circ}

56) This is a geometric sequence where the next term is obtained by multiplying the previous term by -2, so the next two numbers are 16, -32

8 0
1 year ago
Please I need help ASAP
givi [52]

Answer:

A. d = 1/10t

Step-by-step explanation:

2 = 20/10

4 = 40/10

6 = 60/10

3 = 30/10

5 0
3 years ago
- |4x+10|-7=-14 solve for x
Tanzania [10]

Answer:I forgot how to solve that

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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