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Novosadov [1.4K]
3 years ago
9

Solve pleasee x(7-x)>8

Mathematics
1 answer:
maks197457 [2]3 years ago
3 0

I forgot about this one!! I lbew but I lost it!! Sorry :(

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Round to the nearest tenth (TIMED PLEASE help!!!)
vredina [299]

Answer:

A = 180 - (90 + 72) \\  A= 18° \\  \\ from \: pythogoras \\ a = 3.4 \\ b = 10.5

4 0
2 years ago
Determine whether the following relation is a function. {(-6, – 8), (5, 1). (9.-4), (7,2), (15, 0)} ​
lidiya [134]

This relation is a function. None of the x-values repeat. Each y-value belongs to a specific x-value.

4 0
3 years ago
-4x + 2y = -8 in slope interception form (y= mx + b )
Nostrana [21]

Answer:

y=2x-4

Step-by-step explanation:

so we just have to rearrange this to

2y=4x-8

we can do this by adding 4x to both sides

then we divide by 2

y=2x-4

4 0
2 years ago
Read 2 more answers
Abc is bisected by bd for what value of x will dx= day be true?
Reil [10]

Answer:

x=3\\

Step-by-step explanation:

Note that because BD is an angle bisector, then angle XBD and angle DXY are equal. Also note that BYD and BXD are equal because they are both right angles. Also, by the transaitive property, BD = BD. Therefore, it can be concluded that BXD is congruent to BYD.

Therefore, we must solve 5x+4=19 \Longrightarrow 5x = 15 \Longrightarrow x=3.

5 0
2 years ago
Joshua has $4,200 to invest for college. If Joshua invests $4,200 for 3 years and earns $630, what is the simple interest rate?
Rama09 [41]

Answer:

The simple interest rate is 5%.

This is possible with a rate of 6%, since in this case, his amount earned will be $5,208.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

T = E + P

Joshua has $4,200 to invest for college. If Joshua invests $4,200 for 3 years and earns $630, what is the simple interest rate?

We have that P = 4200, E = 630, t = 3. We have to find I.

E = P*I*t

630 = 4200*I*3

I = \frac{630}{4200*3}

I = 0.05

The simple interest rate is 5%.

Joshua’s goal is to have $5,000 after 4 years. Is this possible if he invests with a rate of  return of 6%?

We have to find T when P = 4200, t = 4, I = 0.06

So

E = P*I*t

E = 4200*0.06*4

E = 1008

T = E + P = 4200 + 1008 = 5208

This is possible with a rate of 6%, since in this case, his amount earned will be $5,208.

7 0
2 years ago
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