Pleaseeeee help I’m doing terrible in math I need help

Answer:

Step-by-step explanation:

Using D / T = R, we have

(3/8)miles / (3/5) hrs =

3/8 x 5/3  =

5/8 mph

Answer:

0.61 or 61 %

Step-by-step explanation:

Answer:

0.61

Step-by-step explanation:

0.39 is also 39%, the highest probability is always 100% unless it says otherwise, so our equation is:

1 - 0.39 = 0.61

So the probability of getting a head is 0.61 or 61%

Answer:

D.

Step-by-step explanation:

Hi there! You’re correct.

Twice the difference of nine and a number squared would look like

[tex]2(9-n^2)[/tex]

I hope this helped! :)

Answer:

k = 1.87

Step-by-step explanation:

Given that,

An expression 45k = 84

We need to find the value of k.

It can be calculated as follows :

Divide both sides by 45,

[tex]\dfrac{45k}{45} = \dfrac{84}{45}\\\\k=1.87[/tex]

So, the value of k is equal to 1.87.

Answer:

he's 11

Step-by-step explanation:

Answer:

14

8 PLUS 4 IS 12

Step-by-step explanation:

Answer: your mom

Step-by-step explanation:

Answer:

Timothy Simon Spicer was born in  1952. He is a retired British Army officer and was once a chief executive officer of the private security company Aegis Defence Services. He is a veteran of the Falklands War and also toiled with the British Army within the borders of Northern Ireland.

Step-by-step explanation:

hope this helps :)

Answer:

9/5, since it says ratio, you don't change it into a mixed number

Step-by-step explanation:

18/10= 9/5

Answer:

Step-by-step explanation:

x-2(4x-3)=30

x-8x+6=30

-7x=30-6

-7x=24

x=-24/7 maybe it is a mistake in the statement of the problem

Answer:

13 inches of wire can be bought for 52 cents.

Step-by-step explanation:

→ We can use proportion to solve:

[tex] \frac{19 \: inches}{76 \: cents} = \frac{x}{52 \: cents} \\ \\ \frac{76x}{76} = \frac{988}{76} \\ \\ x = 13[/tex]

Answer:

A is for apple

Step-by-step explanation:

abc

Answer:

C: Quadrant III

Step-by-step explanation:

Have a good day. Their is your answer :D.

Answer:

I don't have a life.....

Answer:

I am an Undertale trash. so this is my life.

Step-by-step explanation:

Answer:

Stefan originally spent $110.

Stefan made a profit of $44.

Step-by-step explanation:

Given that:

Stefan sold the bike and helmet for $137 and $17

Total amount = 137+17 = $154

This is 140% of the price Stefan originally paid.

Let,

x be the original price paid by Stefan

140% of x = $154

[tex]\frac{140}{100}x=154\\1.4x = 154\\\frac{1.4x}{1.4}=\frac{154}{1.4}\\x=110[/tex]

Therefore,

Stefan originally paid $110 for the bicycle and helmet.

Profit made by Stefan = 154-110 = $44

Hence,

Stefan originally spent $110.

Stefan made a profit of $44.

the total price of the catering company's order was $198.

To discover the total value of the order, we need to multiply the kilos of every type of meat via its respective cost in keeping with pound and then add those products together.

For the chook:

15 pounds x $2 per pound = $30

For the beef:

21 kilos x $4 per pound = $84

For the lobster:

7 pounds x $12 per pound = $84

Now, we add up the costs of each form of meat to find the total cost of the order:

$30 + $84 + $84 = $198

Consequently, the whole price of the catering company's order was $198.

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Answer:

0.00137

Step-by-step explanation:

Answer:

Find the GCD (or HCF) of numerator and denominator. GCD of 9 and 3 is 3.

9 ÷ 33 ÷ 3.

Reduced fraction: 31. Therefore, 9/3 simplified to lowest terms is 3/1

Step-by-step explanation:

Find the GCD (or HCF) of numerator and denominator. GCD of 9 and 3 is 3.

9 ÷ 33 ÷ 3.

Reduced fraction: 31. Therefore, 9/3 simplified to lowest terms is 3//

Answer:

= 1/2 tan^(-1)(2 cot(x)) + constant

Step-by-step explanation:

Take the integral:

integral1/(3 sin^2(x) - 4) dx

Multiply numerator and denominator of 1/(3 sin^2(x) - 4) by -sec^2(x):

= integral-(sec^2(x))/(4 sec^2(x) - 3 tan^2(x)) dx

Prepare to substitute u = tan(x). Rewrite -(sec^2(x))/(4 sec^2(x) - 3 tan^2(x)) using sec^2(x) = tan^2(x) + 1:

= integral-(sec^2(x))/(tan^2(x) + 4) dx

For the integrand -(sec^2(x))/(tan^2(x) + 4), substitute u = tan(x) and du = sec^2(x) dx:

= integral-1/(u^2 + 4) du

Factor out constants:

= - integral1/(u^2 + 4) du

Factor 4 from the denominator:

= - integral1/(4 (u^2/4 + 1)) du

Factor out constants:

= -1/4 integral1/(u^2/4 + 1) du

For the integrand 1/(u^2/4 + 1), substitute s = u/2 and ds = 1/2 du:

= -1/2 integral1/(s^2 + 1) ds

The integral of 1/(s^2 + 1) is tan^(-1)(s):

= -1/2 tan^(-1)(s) + constant

Substitute back for s = u/2:

= -1/2 tan^(-1)(u/2) + constant

Substitute back for u = tan(x):

= -1/2 tan^(-1)(tan(x)/2) + constant

Which is equivalent for restricted x values to:

Answer: = 1/2 tan^(-1)(2 cot(x)) + constant

Yes because in it's the same variable do it will give the same answer

Answer:

She should earn 225 dollars.

Step-by-step explanation:

I know this because 50 ÷ 4 = 12.5 and 12.5 × 18 = 225.

Answer:

we conclude that:

[tex]\frac{6}{6^{\frac{1}{4}}}=6^{\frac{3}{4}}[/tex]

Step-by-step explanation:

Given

The expression is

To determine

Simplify the expression

Simplifying the expression

[tex]\frac{6}{6^{\frac{1}{4}}}[/tex]

Apply the exponent rule:   [tex]\frac{x^a}{x^b}=x^{a-b}[/tex]

[tex]\frac{6}{6^{\frac{1}{4}}}=6^{1-\frac{1}{4}}[/tex]

Subtract the numbers:   [tex]1-\frac{1}{4}=\frac{3}{4}[/tex]

     [tex]=6^{\frac{3}{4}}[/tex]

Therefore, we conclude that:

[tex]\frac{6}{6^{\frac{1}{4}}}=6^{\frac{3}{4}}[/tex]

9514 1404 393

Answer:

  1 17/33 hours, about 1.52 hours

Step-by-step explanation:

The distance between the trucks is increasing at the rate of 60+39 = 99 miles each hour. Then the time to get to a separation distance of 150 miles is ...

  (150 mi)/(99 mi/h) = (150/99) h = 1 17/33 h

The trucks will be 150 miles apart after ...

  1 17/33 hours, about 1 hour 30 min 55 seconds.

Answer: 4

Step-by-step explanation:

16 - 12

Answer:

 = 4

Step-by-step explanation:

Answer:thx for th e fre points

Step-by-step explanation:

b and the answer would be -200z

Answer:

yes

Step-by-step explanation:

Answer:

The formation of ∆ is possible .

Step-by-step explanation:

Three sides of triangle are given which are 10 , 7 & 15. And we need to determine whetherwecanmake a triangle with these three sides or not . So we know that ,

" Sum of any two sides of a triangle is Greater

than the third side "

Let ,

Here we will see by three cases. And the formation of triangle will be possible if and only of all the three cases are possible.

So , let's check ,

Case 1:-

→ a + b > c

→ 10 + 7 > 15

→ 17 > 15

Case 2:-

→ b + c > a

→ 7 + 15 > 10

→ 22 > 10

Case 3 :-

→ a + c > b

→ 10 + 15 > 7

→ 25 > 7

Since all the three cases are true Hence formation of ∆ is possible.

) What proportion of the sampled wafers had at least one particle? At least five particles? (Round your answers to two decimal places.)

Answer:

0.99

0.71

Step-by-step explanation:

The total number of frequency is 100 when added together

A.

The proportion with at least one particle.

Here we are to get :

Total frequency - (frequency of cases whose particles are 0.)

= 100-1

= 99

99/100

= 0.99

B.

At least 5 particles:

Total number of frequency - (cases that have frequencies with 4 or less particles)

= 100 - (12+11+3+2+1)

= 100 - 29

= 71

71/100

= 0.71

Answer:

b/2-3  

8/2-3(substituting B=8)

8/-1

-8

Step-by-step explanation:

eheh

Answer:

5.26%

Step-by-step explanation:

Danielle measured the the mass at 40grams. ,Compared to 38 grams, there is a percentage increase.

Old Value = 38grams, New Value = 40grams

%Increase = 40-38/38 × 100%

%Increase = 5.26%

The person whose water is saltier is Jack's water.

It is the quantity of an amount of something at a rate of one of another quantity.

In 2 hours, a man can walk for 6 miles

In 1 hour, a man will walk for 3 miles.

We have,

Jack adds 1 tsp of salt to 3 tsp of water.

This means,

3 tsp of water = 1 tsp of salt

Divide both sides by  3.

1 tsp of water = 1/3 tsp of salt

1 tsp of water = 0.33 tsp of salt ____(1)

Mika adds 4 tsp of salt to 9 tsp of water.

9 tsp of water = 4 tsp of salt

Divide both sides by 9.

1 tsp of water = 4/9 tsp of salt

1 tsp of water = 0.0092 tsp of salt ____(2)

From (1) and (2) we see that,

Jack's water is saltier.

Thus,

Jack's water is saltier.

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Answer: 2.75(3) + 4x = 11.25

Step-by-step explanation:

It says each bag costs $2.75 and there are 3 bags so multiply those 2 and then subtract them from the total cost (11). What you get after you subtract is the total costs of the salsa so divide that by 4 to get the cost of each, in this case it doesn't ask so we leave it as 4x.

Step-by-step explanation:

let 4x

6x

and x be the ratio

now

6x+4x+x=60

10x=60

x=60/10

x=6

again

6x

6×6

36

4x

4×624

and

x=6