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LenKa [72]
3 years ago
14

Help me with this please​

Mathematics
2 answers:
Tpy6a [65]3 years ago
5 0
The correct answer is D
ololo11 [35]3 years ago
3 0
I think the answer is t
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Round 66.3899872389 to the nearest thousandth
ddd [48]

Answer:

66.390

Step-by-step explanation:

6 0
2 years ago
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4^4 + 1/2 step by step
expeople1 [14]
4^4 + 1/2
= (4×4×4×4) + 1/2
= 256 + 1/2
= 256 + 0.5
= 256.5
8 0
3 years ago
−2/3(3 - 1/2)(-1) = ?
chubhunter [2.5K]

The correct answer would be <u><em>B. 2 - 1/3</em></u>

8 0
3 years ago
Help me answer the question in the attached document pleaseeee
Katarina [22]

Answer:

1. Yes

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Step-by-step explanation:

7 0
3 years ago
Find the x-intercepts of the parabola with the vertex (4,-1) and y-intercpet (0,15). write your answer in this form, (x1,y1)(x2.
Ilya [14]
If you fit the vertex and the y-intercept into that form of the parabola, what you get is this:
a(0-4) ^{2} =(15+1) and
a(-4) ^{2} =16 and 16a=16. Solve that a to get that a = 1.  Now you have your true parabola equation in vertex form, which is:
1(x-4) ^{2} =y+1 or just
(x-4) ^{2} =y+1
Follow my work here to find the x-intercepts:
(x-4) ^{2} -1=y
(x-4)(x-4)-1=y and x^{2} -8x+16-1=y
Simplifying by combining like terms gives you this parabola:
x^{2} -8x+15=y
In order to find the x-intercepts, or the roots of the parabola as they are also known as, you have to set y equal to 0 (because the x-intercepts are found when y = 0, right?)
x^{2} -8x+15=0
Factoring that gives you (x-5)(x-3)=0 and that x-5=0 and x-3=0. Solving each of those simple equations gives you x=5 and x=3 when y=0. So the roots, in the form you require them, are (5, 0) and (3, 0)
8 0
3 years ago
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