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aleksklad [387]
3 years ago
15

Can someone please help me with ALL of these questions

Mathematics
1 answer:
lora16 [44]3 years ago
5 0
37. B: Negative inverse, the product of the gradients is -1

38. C: decreases

39. B: the sum of all divided by 9
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I need the answer pls pls pls answer pls
dangina [55]

Answer: Can't see the whole problem

Step-by-step explanation:

3 0
3 years ago
the ratio of red marbles to blue marbles was 8 to 3. What was the ratio of blue marbles to red marbles
Ivanshal [37]

Answer:

3:8

Step-by-step explanation:

If the ratio of red marbles to blue marbles is 8:3, and the question is asking for  the ratio of blue marbles to red marbles, all you have to do is switch the numbers around.

The ratio of blue marbles to red marbles is 3:8

Hope this helps!

5 0
2 years ago
Solve for n. 3 (n 5) ≥ 3n 8 a. no solution b. n ≥ 23 c. n ≥ 7 d. all real numbers
REY [17]
3(n + 5) ≥ 3n + 8
3n + 15 ≥ 3n + 8
3n - 3n ≥ 8 - 15
0 ≥ -7

Therefore, the solution to the inequality is all real numbers.
8 0
3 years ago
Read 2 more answers
A train left isiolo on Friday at 11:45 pm.it took 8 hrs 55 mins to reach Nairobi. When did the train reach Nairobi? A . Saturday
valentina_108 [34]

Answer:

D.Saturday 8:40am

Step-by-step explanation:

11+8=19 (7)

45+55=100

one hour(100) makes 60 minutes

100-60=40

Therefore the answer is Saturday 8:40am

7 0
3 years ago
A plane flying over the ocean is on course to land on an aircraft carrier. The diagonal distance between the plane and the aircr
fomenos

Answer:

the plane's current height above the ocean is 3.42 miles

Step-by-step explanation:

Given that the diagonal distance between the plane and the aircraft carrier is 10 miles.

What we need to find is the vertical distance between the plane and the aircraft carrier which is the plane's current height above the ocean. This can be gotten using sine rule.  

For sine rule, you need a side and its opposite angle. For this question the triangle formed is a right angle triangle with diagonal distance, vertical distance and horizontal distance.

let a = diagonal distance = 10 miles

let the opposite angle to the diagonal distance be A = 90° (right angle)

let the vertical distance = b

let the opposite angle to the vertical distance be B = 20°

Sine rule states that    \frac{a}{sin(A)}  =  \frac{b}{sin(B)}

∴   \frac{10}{sin(90)}  =  \frac{b}{sin(20)}

b  =  sin(20)\frac{10}{sin(90)}

b  =  0.342*\frac{10}{1}

⇒ b = 3.42 miles

Therefore the plane's current height above the ocean is 3.42 miles

4 0
3 years ago
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