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xenn [34]
3 years ago
15

Need help will mark brainliest for best answer​

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

Answer:

True

Step-by-step explanation:

Given a parabola in vertex form

f(x) = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

• If a > 0 then the graph opens up

• If a < 0 then the graph opens down

Given

f(x) = - (x + 3)² + 2 ← in vertex form

with a = - 1 < 0 then graph opens down is True

Nookie1986 [14]3 years ago
3 0

Answer: True

Step-by-step explanation:

The function is even and negative. A negative function opens down. With this information, the statement is true: the function opens down.

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9 cm
OLEGan [10]

Answer:

∴ ∠BAD = sin^{-1}(0.2044) = 11.8°

Step-by-step explanation:

i) AD = 9 cm

ii) DC = 3 cm

iii) ∠BCD = 35°

iv) Since AB is parallel to DC and ∠ABD = 90°  then we can conclude that ∠BDC = 90°.

v) \frac{BD}{DC}  =  \frac{BD}{3\hspace{0.1cm}cm}  = tan(35) = 0.6128      ∴ BD  = 3 \times 0.6128 = 1.84 cm

vi) ∴ sin(∠ BAD ) = \frac{BD}{AD}      ⇒     sin(∠ BAD ) = \frac{1.84}{9} = 0.2044

     ∴ ∠BAD = sin^{-1}(0.2044) = 11.8°

7 0
4 years ago
What is slope? Check all that apply.
Katarina [22]

Answer:

B, E, and F maybe

3 0
3 years ago
Travis and his three friends ate out at Applebee's. Their bill totaled $72.50. If they left the server a 22%
Vlad [161]
The answer is a tip =15.95
8 0
3 years ago
Can somebody help me pleasee it’s a written response 75 POINTS PLEASEEE HELP ASAP
Gnoma [55]

Answer:

What's the question?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Will give brainliest.
Dennis_Churaev [7]
Pretty sure it's A. (X times .5 equals Y)
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