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Iteru [2.4K]
3 years ago
7

18. Which one of the following mathematical statements is true?

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

b

Step-by-step explanation:

poizon [28]3 years ago
8 0
ANSWER:
The correct answer is option ‘D’ .

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Jessica earns 800 each month working a part time job. she wants to save a total of 2,400 for collage over a one- year period. wh
grigory [225]

Answer:

25%

Step-by-step explanation:

Given parameters:

Amount earned by Jessica per month = 800

Total savings target per year  = 2400

Unknown:

Percentage of savings = ?

Solution:

The total earning per year will be the amount earned per month multiplied by the total number months;

 Amount earned in a year = 12 x 800  = 9600

Let the percentage of savings per year  = y%

  Now;

              2400 = \frac{y}{100} x 9600

                  y = 25%

8 0
2 years ago
Help me answer this question please
Stella [2.4K]

ANSWER

{f}^{ - 1}  =\pm \sqrt{x + 1}

EXPLANATION

The given function is

f(x) =  {x}^{2}  - 1

Let

y =  {x}^{2}  - 1

Interchange x and y to get:

x=  {y}^{2}  - 1

Solve for y,

x + 1 =  {y}^{2}

Take square root of both sides to get,

\pm \sqrt{x + 1}  = y

This is the same as:

y =  \pm \sqrt{x + 1}

Therefore the inverse is

{f}^{ - 1}  =\pm \sqrt{x + 1}

3 0
3 years ago
What is the area of the trapezoid shown below?
andrew-mc [135]
Ok so the triangle part is 10 but I don’t know what the rectangle part is but the formula for a rectangle is A=base x high
5 0
3 years ago
Which statement is true?
kvasek [131]

Answer:

A. The slope of Function A is greater than the slope of Function B.

Step-by-step explanation:

The slope of a function can be defined as rise/run. In Function A, the rise/run is 4. The slope in Function B is much easier to see: it is 2. Because 4 is greater than 2, Function A has a greater slope than Function B.

5 0
2 years ago
How is 0.0008235 written in scientific notation
jeka57 [31]
Okay, move the decimal behind the 8. There are 4 places before the decimal so it is nagitive. If there are places Infront of the decimal is nagitive. So the answer is 8.235×10-4
8 0
2 years ago
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