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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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Find the area of a trapezoid with bases 14 cm and 18 cm and height 10 cm.
4vir4ik [10]
You should add the two bases and muliply them with the height and then divide with 2
(14+18)×10÷2=160
8 0
4 years ago
What is y = sin-1(7/12)
quester [9]

I'm not sure how to do this manually but if you plug in 7/12 in a scientific calculator and then press sin -1 you'll get approximately 35.685

4 0
4 years ago
Read 2 more answers
What is the equation of a line that has an x-intercept of -4 and a y-intercept of 8 ?
podryga [215]

Answer:

y=2/-1+8

Step-by-step explanation:

  • -4= (-4,0) -4=x1 0=y1, 8= (0,8) 0=x2 8=y2
  • formula is, y2-y1/x2-x1
  • 8-0/0-4=8/-4=4/-2= 2/-1
  • 2/-1 is the slope or (m), use (-4,0) or (0,8) i used (0,8) because its easier.
  • (0,8), 0=x1 8=y1
  • formula is y-y1=m(x-x1)
  • y-8=2/-1(x-0) ---->distribute
  • y-8=2/-1x-0 --->get y alone

          +8          +8

  • so the answer is y=2/-1+8

7 0
4 years ago
The ratio 2.5m to 60cm can be written in the form 1:n find the value of n. someone please help asap
Svetach [21]

Answer:

24

Step-by-step explanation:

2.5 divided by 2.5 equals 1. So 60 divided by 2.5 equals 24.

5 0
3 years ago
Read 2 more answers
10% of 65 pls help and explain the steps to get total answer​
sergij07 [2.7K]
10% of 65
Of means multiply
=0.1 x 65
=6.5

Or you can use another way which is (part/whole) *(percent/100)

Whole=65
Percent=10
And part(part of 65)=unknown

(X/65)* (10/100)
Cross multiply
x= 6.5

So 10% of 65 is 6.5
5 0
3 years ago
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