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madam [21]
3 years ago
8

Help with this long question

Mathematics
2 answers:
Sauron [17]3 years ago
7 0
Step 3 is incorrect

Must be x=∛3
Vladimir79 [104]3 years ago
7 0
The step that Brandon had performed an incorrect inverse operation would be at the third step. Rather than taking the cube root which is the inverse of raising a value to the power 3. He instead divided the value by 3, which is incorrect.

The final solution would read X = 3✔️3.
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Model train tracks are set up as shown. Each circle is 210 meters. The red and the blue train start at opposite sides of the cou
IgorC [24]
You never gave the speed of the blue train. The path to collision is equal to 1½ circles. 1.5 x 210 meters = 315 meters I'm going to arbitrarily guess the speed of the blue train is 15 meters per minute. They are therefore approaching each other at a combined rate of 35 meters per minute. 315 / 35 = 9 minutes Answer: 9 minutes
5 0
3 years ago
Read 2 more answers
(a) Work out the reciprocal of 1.25
Oxana [17]

Answer:

0.8 OR \frac{4}{5}

Step-by-step explanation:

The reciprocal of any number is the number that it multiplies by to equal 1.

The reciprocal can be found by simply converting the number into a fraction and then 'flipping' the fraction as any number multiplied by its reciprocal is 1.

E.g.

No. X/Y * Y/X (its reciprocal) = 1

\frac{x}{y} *\frac{y}{x} =\frac{xy}{xy} =1

So, to find the reciprocal of 1.25,we should first convert 1.25 to a fraction.

1.25 = 125/100

\frac{125/25}{100/25}=\frac{5}{4}

Now we just flip 5/4 to get our reciprocal:

\frac{4}{5} = 0.8

Test: 0.8 * 1.25 = 1

The reciprocal of 1.25 (\frac{5}{4}) is 0.8 (\frac{4}{5}).

Hope this helped!

8 0
3 years ago
Pls help me if your good at math
OLEGan [10]

Answer:

First bank last function

Second blank, the middle function

Third blank, middle function

Fourth blank, first function

7 0
3 years ago
Rewrite -5(x+3) without parentheses
nevsk [136]

Answer:

-5x-15

Step-by-step explanation:

its simple you have to multiply it to both

6 0
3 years ago
Read 2 more answers
If a map has a scale of 1.5 inches = 500 feet how many inches would represent 850 miles
Artist 52 [7]

500 feet divided by 1.5 equals 333.33. 500 feet divided by 333.33 equals 1.5. 850 feet divided by 333.33 equals 2.55 or 2.6. Your answer is 2.6.

7 0
3 years ago
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