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muminat
2 years ago
15

BRAINLIEST! URGENT! Please help me, If you can explain how you got the answer and if you answer both questions, I will mark you

Brainliest.​

Mathematics
1 answer:
anastassius [24]2 years ago
6 0

Answer:

1. I have simplified the first question:

x=\frac{10-ab}{a-4};\quad \:a\ne \:4

2. I have found the parabola properties:

\left(h,\:k\right)=\left(\frac{5}{2},\:\frac{25}{4}\right),\:p=-\frac{1}{4}

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A shark is swimming 28 ft below sea level. If the angle of depression from a boat on the water to the shark is 19 degrees, what
Orlov [11]

Answer:

81,3 ft to the nearest tenth.

Step-by-step explanation:

Tan 19 = 28 / h  where h = the horizontal distance.

h = 28 / tan 19

h = 81.3 ft.

3 0
3 years ago
Lockheed Martin, the defense contractor designs and build communication satellite systems to be used by the U.S. military. Becau
Ray Of Light [21]

Answer:

  p(on schedule) ≈ 0.7755

Step-by-step explanation:

A suitable probability calculator can show you this answer.

_____

The z-values corresponding to the build time limits are ...

  z = (37.5 -45)/6.75 ≈ -1.1111

  z = (54 -45)/6.75 ≈ 1.3333

You can look these up in a suitable CDF table and find the difference between the values you find. That will be about ...

  0.90879 -0.13326 = 0.77553

The probability assembly will stay on schedule is about 78%.

5 0
3 years ago
anna owes home antiques Whose value is 160000 today assuming normal growth. however anna believes the value will grow at 16% per
Ray Of Light [21]
The formula is
A=p (1+r)^t
A future value?
P present value 160000
R interest rate 0.16
T time 3years
A=160,000×(1+0.16)^(3)
A=249,743.36

Use that future value to find the present value at a rate 8% compounded annually
To find p (present value) solve the formula for p
P=A÷ (1+r)^t
Where r is 0.08
P=249,743.36÷(1+0.08)^(3)
p=198,254.33
3 0
2 years ago
What are the coordinates of the point on the directed line segment from (3,3) to
sergey [27]

Answer:

3,5

Step-by-step explanation:

the answer is 3,5

I hope this helps

5 0
3 years ago
Which one is farther right on the number line -1.75 or -3.25
Neko [114]
-1.75, negative numbers go on the left of the negative sign going up (down) and since -1.75 is actually a greater number our answer is -1.75
3 0
2 years ago
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