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denpristay [2]
3 years ago
9

Write the equation of the parabola in vertex form.vertex (0,2), point (1,-5)

Mathematics
2 answers:
svp [43]3 years ago
7 0

Answer:

-7x^2+2

Step-by-step explanation:

Just took the test

charle [14.2K]3 years ago
3 0
Y=a(x-h)^2+k
-5=a(1-0)^2+2
-5=a+2
-3=a

y=-3x^2+2
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Which transformation can verify congruence by turning one triangle 90 degrees
Nezavi [6.7K]
The answer to the question of yours is A. Rotation Its not B. because the question is asking by turning one triangle 90 degrees. This would mean that B. is incorrect since its turning. It wouldn't be C. because it isn't translating 90 degrees left or right its turning. And it most definitely wouldn't be D. Dilation because the triangle isn't decreasing or enlarging. Hope this helped feel free to ask any more questions.   
6 0
3 years ago
Read 2 more answers
Evaluate 3 – 5 · 2 + 8 ÷ 4 – 2 using the correct order of operations.
soldi70 [24.7K]
The answer is
C) -7

Multiply -5 by 2
Divide 8 by 4 :
3-10+2-2
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-7+2-2
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3 0
3 years ago
Find the exact value of the given expression.<br> sin(2cos^-1(5/13))
xeze [42]

Answer:

+120/169 or -120/169

Step-by-step explanation:

  • let cos^{-1}[\frac{5}{13}  ] = \alpha

where, alpha is some angle that satisfies the assumed condition.

  • so, cos\alpha= 5/13

[ taking cos to the other side  or applying cos on both sides]

  • now, substitute this in the given expression
  • sin(2cos^-1(5/13)) = sin(2\alpha )

as sin\beta =  + or -\sqrt{1-(cos\beta) ^{2}

[by general trigonometry formula: cos^{2}[\beta]  +sin^{2}[\beta]=1]

so if  cos\alpha= 5/13, we can get sin\alpha from the above formula as + or - 12/13

(because, after taking square root on both sides we keep + or -]

  • as, sin2\beta  = 2*sin[\beta ]*cos[\beta ]

[by general trigonometry formula]

  • here, now sin[2\alpha ]=2*(+or- 12/13)*5/13\\

so, the final value can be 120/169 or -120/169.

4 0
3 years ago
You have prizes to reveal! Go to<br> Does (7,9) make the inequality 15x + 17y &gt; 13 true?
Hoochie [10]

Answer:

yes it is cause the answers 258

3 0
3 years ago
Read 2 more answers
Leechtown Co. has 4.3% coupon bonds on the market with 18 years left to maturity. The bonds make annual payments. If the bond cu
oksian1 [2.3K]

Answer:

YTM = 5.45%

Step-by-step explanation:

Here, we are interested in calculating the yield to maturity.

Mathematically;

Annual coupon=1000*4.3%=43

YTM=[Annual coupon+(Face value-Present value)/time to maturity]/(Face value+Present value)/2

=[43+(1000-870)/18]/(1000+870)2

=5.45%

6 0
3 years ago
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