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2 years ago

The greatest solution of x in the equation x^2+8x−30=18

Mathematics

2 answers:

solmaris [256]2 years ago

3 0

Answer:

The two possible outcomes are 4 and -12, so 4

Step-by-step explanation:

Nikolay [14]2 years ago

3 0

Answer:

X=4, -12

Step-by-step explanation:

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If an airplane travels 110 mph for 5 hours, what is the total distance traveled?

Sergeu [11.5K]

Answer:

550 miles

Step-by-step explanation:

$Distance=Speed\times Time$

$Distance = 110mph \times 5h = 550\ miles$

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3 years ago

Please help i'm struggling with this!It's urgent!

Zinaida [17]

Answer:

Step-by-step explanation:

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3 years ago

a map has a scale 1: 50000. The distance between two towns on the map is 10cm. How far apart are the towns in real lfe . Give yo

GREYUIT [131]

Answer:

5 km

Step-by-step explanation:

the scans means that any distance on the map is 50000 times larger in real life.

so, 10 cm on the map is

10×50000 = 500000 cm in real life.

now, we know that 100cm = 1 m

so, it is 500000/100 = 5000 m in real life.

and there are 1000 m in 1 km.

so, it is 5000/1000 = 5 km in real life

7 0

2 years ago

When his daughter alisa was born mike began saving for her wedding. He wanted to have saved about 30,000 by the end of 20 years

Gennadij [26K]

Answer:

$\$16,610.27$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=20\ years\\A=\$30,000\\ r=0.03\\n=1$

substitute in the formula above

$30,000=P(1+\frac{0.03}{1})^{1*20}$

$30,000=P(1.03)^{20}$

$P=30,000/(1.03)^{20}$

$P=\$16,610.27$

4 0

3 years ago

Yes help me please i need

kow [346]

The correct answer is C and E

Explain

A. 8x+4x=0

Now simply it

12x = 0

Now divide by 12 on both both side

X= 0

So this equation has the solution x= 0

B. 6x+2 = 4x+2+2x

Now both sides

6x+2=6x+2
Now simply by 6x+2 both sides

X= 0

So this equation has infinity solution

C. 4x-8x-3=6-4x

Now simply both sides

-4x-3=6-4x

Now simply

-3x=6

This equation have no solution

D. 5x+1 =1-5x

Now add 5x-1 on both sides

10=0
Now divide by 10

X= 0

This equation have solution x= 0

E. 12x-3-5x = 9+7x-6

Now simply both sides

7x-3= 7x+3

And subtract 7x from both sides

-3 = 3

So the equation has no solution

I hope this help you :D

Good luck

8 0

3 years ago