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3 years ago

Whats the answer to the question

Mathematics

1 answer:

Nata [24]3 years ago

6 0

The answer is 8 because you add 8 and 10 and then multiply it by 10 then you get will 180 and that is what the equation wants you to get so the answer is x/8

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Hi, I am very stuck on questions 17 and 18. Can someone help please? Thanks

NISA [10]

9514 1404 393

Answer:

17) x = 10√2

18) x = 4√6

Step-by-step explanation:

These problems rely on your knowledge of the side ratios of special triangles

45°-45°-90° triangle: 1 : 1 : √2

30°-60°-90° triangle: 1 : √3 : 2

17) 5 is the short side of the isosceles right triangle, so its hypotenuse is 5√2. That length is the shortest side of the 30/60/90 triangle, so its longest side is 2 times that:

x = 10√2

18) 8 is the longest side of the 30/60/90 triangle, so its long leg will be 8(√3)/2 = 4√3. The hypotenuse of the isosceles right triangle is √2 times that, so ...

x = (4√3)(√2)

x = 4√6

6 0

3 years ago

How do you do function machines?

timurjin [86]

Well you are going to need a rule or formula like x + 6 or 3 (x) + 2

Example:

Input x + 6 Output
2 2+ 6 8
4 4+6 10
6 6+6 12

Hope this helps sorry if it doesn’t

7 0

3 years ago

some teachers travelled to school by car the table shows the number of teachers in the cars a)what was the modal number of teach

Paha777 [63]

Answer:

WE need the numbers

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Emily got a new job that guarantees her at 6% raise every year.If she started out making $25,000,How long will it be before she

Nadya [2.5K]

Hello from MrBillDoesMath!

Answer: about 12 years ( approx 11.9 years)

Discussion:

Salary at ...

end of year 1: 25000 + (.06) * 25000

end of year 2: (salary at end of year 1) +

.06(salary at end of year 1) =

(25000 + (.06)*25000) +

.06 (25000 + (.06)*25000)

The bold faced terms are the same. Factor out the boldfaced term to

get

(25000 + .06*25000) ( 1 + .06)

Factor 25000 out to get

25000 * (1 + .06) * (1+ .06)

The last two terms multiple out to give (1 + .06)^2

so....

end of nth year salary is

25000 * ( 1 + .06) ^n

To double her salary we need to find "n" such that

50000 = 25000 ( 1.06) ^ n

Dividing both sides by 25000 gives

2 = 1.06 ^n

Taking the logarithm of both sides gives:

log2 = n * log (1.06) or

n = log2 / log(1/06)

This is approximately 0.3010 / 0.0253 or about 11.9 years.

Thank you,

MrB

3 0

3 years ago

I need help with exercises 3,4, and 6 please show all work and don’t answer number 5 just tell me if it is correct

joja [24]

*If you need me to do #5, DM me!

3. The area of a triangle can be given by (just plug and chug as always):
$A_t = \frac{1}{2} bh = \frac{1}{2}(3)(4) = 6ft^2$
The area of the triangle is 6ft².

4. I will divide into a triangle and a rectangle (because the actual equation for the area of a pentagon requires it to be a perfect pentagon). Let's do the triangle first (height is 3 because you subtract 12 from 15):
$A_t = \frac{1}{2} bh = \frac{1}{2}(8)(3) = 12m^2$
$A_r = bh = 12(8) = 96m^2$
Now we just add them:
$96+12 = 108m^2$

So, the area of that pentagon is 108m².

5. You are actually wrong on this one because the area of a triangle is:
$A_t = \frac{1}{2}bh$
So, just halve your answer and it will be correct.

6. We can just split it into 4 triangles of equal area and then multiply the area of 1 triangle by 4 to get the total area. Let's do just that:
$A_t = \frac{1}{2}bh = \frac{1}{2}(2.5)(5) = 6.25cm^2$
Multiply by 4 to get total area:
$6.25*4 = 25cm^2$

So, the area of the given rhombus is 25cm².

8 0

4 years ago