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4 years ago

Find two numbers that multiply to -81 but add to 0

Mathematics

2 answers:

Maru [420]4 years ago

7 0

Answer:

-9 and 9 are the two numbers that you can multiply to get -81 and add to get 0

Step-by-step explanation:

-9 × 9 = -81

-9 + 9 = 0

Hope this helps can you mark my answer as brainliest please?

vladimir1956 [14]4 years ago

5 0

Answer:

9 and -9

Step-by-step explanation:

9*-9=-81

9+(-9)=0

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A 555-mile, 5-hour plane trip was flown at two speeds. For the first part of the trip, the average speed was 105 mph. Then the t

Pepsi [2]

Answer:

Hence Distance traveled at speed 115 mph is 345 miles and Distance traveled at speed 105 mph is 210 miles.

Step-by-step explanation:

Given:

Total Distance = 555 mile

Total time = 5 hour

Let time taken to travel at 115 mph be t

So Time taken to travel at 105 mph will be equal to difference between Total time and time taken to travel at 115 mph.

Time taken to travel at 105 mph = $5-t$

Distance traveled in speed 105 mph will be equal to speed multiplied by time taken to travel at 105 mph.

Framing in equation form we get;

Distance traveled in 115 mph = $115t$

Also;

Distance traveled in speed 105 mph will be equal to speed multiplied by time taken to travel at 105 mph.

Framing in equation form we get;

Distance traveled in 105 mph = $105(t-5) = 105t - 525$

Now Total Distance traveled is equal sum of Distance traveled in 115 mph and Distance traveled in speed 105 mph

$115t-(105t-525)=555\\\\115t-105t+525=555\\\\10t+525=555\\\\10t=555-525\\\\10t=30\\\\t=\frac{30}{10}=3$

Time taken to travel at 115 mph = 3 hrs.

Time taken to travel at 105 mph = $5-t=5-3=2\ hrs$

Now Distance traveled in 115 mph = $115t = 115 \times 3 = 345\ miles$

Distance traveled in 105 mph = $105(5-t) = 105(5-3)= 105\times 2 = 210\ miles$

Hence Distance traveled at speed 115 mph is 345 miles and Distance traveled at speed 105 mph is 210 miles.

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3 years ago

How do you represent the number 506,709 in place value

SIZIF [17.4K]

5 hundred thousand 6 thousand 7 hundred and 9

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3 years ago

Read 2 more answers

Judy will use 2 1/2 cups of flour for each cake she bakes judy has 10 cups of flour what is the maximum number of cakes judy can

Mariulka [41]

Answer:

Step-by-step explanation:

because 2 1/2 times 4=10

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3 years ago

Which of the following best approximates the value g(h(1))? A.-7 B.-5 C.0 D.2

Amiraneli [1.4K]

Answer:

Option (B)

Step-by-step explanation:

From the graph attached,

There are two functions graphed,

y = f(x) and y = h(x)

h(1) = 0 [Output value of function 'h' at the input value x = 1]

Since, g[h(1)] = g(0)

Therefore, value of function 'h' (output value) at (input value) x = 0,

g(0) = -5

Option B will be the correct option.

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3 years ago

[The volume of a circular cylinder of height h and radius r is given by V = pir^2h.] Set up a one variable function to minimize

ch4aika [34]

Answer:

Q1: S(r)= 200/r

Q2: a: dv= 20pie

B: relative error: dv/v =1/16

%error= 6.25%

Step-by-step explanation:

Attached is the complete solution.

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3 years ago