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2 years ago

I’m so confused! Can someone help me with this? Please and thank you!

Mathematics

1 answer:

ludmilkaskok [199]2 years ago

7 0

Answer:

Step-by-step explanation:

1) the domain is x∈[0;+∞);

2) the solution is:

$\sqrt{x}\leq 10; \ => \ x\leq 100;$

3) finally, the solution with the domain is:

x∈[0;100].

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Sal wants to know if he has enough money to buy 4 gallons of gas. If he has $15, and each gallon of gas costs $3.29, which is a

velikii [3]

Answer:

Remember that when you are making stimates, you are going to roiund to the nearest dollar. Since $3.29 is closer to 3 dollars than four dollars, Sam should use the 3 dollars figure to estimate if he can afford 4 gallons of gas.

$3+$3+$3+$3=$12

The actual value is , so $3 per gallon is indeed a god estimate.

We can conclude that the correct answer is: $3 + $3 + $3 + $3 = 12, so Sal can afford the gas.

If this helped please rate and to be marked brainliest answer would be appreciated

Step-by-step explanation:

7 0

3 years ago

WHAT IS? -5(2x+14) = -2(x +63)

Rus_ich [418]

Pretty sure x=-24.5 did the math. Check my answer before you submit anything

3 0

3 years ago

Read 2 more answers

Brainliest if correct

densk [106]

Answer:

u⁷

Step-by-step explanation:

When multiply variables with exponents , all you do is add the exponents

so,

our powers are 3,3,1 (because no exponent means to the power of 1)

Adding the powers is 7

so u⁷

6 0

2 years ago

Read 2 more answers

I really don't get these answers but if you could help me that'll mean a lot thank you for answering my question if you did

mixer [17]

Use KMF (Keep multiply flip)
keep the first fraction as it is
change sign to multiplication
flip numerator and denominator of last fraction
then finish

6 0

3 years ago

HELP!

Contact [7]

This is about changing subject of formula.

1) Option D

2) Option B

3) Option C

4) Option C

5) Option B

1) $\frac{2}{3}$ x = 10

To solve for x, we need to first multiply both sides by the inverse of the coefficient of x since it is a fraction.

This means we multiply both sides by $\frac{3}{2}$ .

Option D is correct

2) We are given the equation;

d = 27.2 - 9.8t

where;

d represents the number of miles she is from home

t represents the number of hours she rides

We are told that she is now 27.2 miles from home.

Since she rides at an average of 9.8 mph, then formula for time is;

t = distance/speed = 27.2/9.8

t = 2.7755

To the nearest hundredth gives;

t = 2.78 hours

Option B is correct

3) S = 145t + 85.

t represents months you have saved

This means that the coefficient of t is the amount you saved monthly = $145

And 85 is the amount you started with.

Option C is correct

4) From question 3 above, S represents the total amount saved after t months.

Thus, if you have saved $810 after t months, then;

145t + 85 = 810

145t = 810 - 85

145t = 725

t = 725/145

t = 5 months

Option C is correct

5) first shirt costs $35 and subsequent ones cost $11.

If the number you can buy is x and max amount to spend is $250, then;

35 + 11x $\leq$ 250

11x $\leq$ 250 - 35

11x $\leq$ 215

x $\leq$ 215/11

x $\leq$ 19.55

There is no decimal shirt and so we pick 19 shirts which is option B

Read more here; brainly.com/question/24657829

3 0

3 years ago