I need help I will list you as brainliest

Answer:

21:84

Step-by-step explanation:

Answer:

Step-by-step explanation:

We have a box with 84 chocolates

63 are dark, milk=84-63=21

21/63=1/3 is the ratio

for each 1 milk chocolate we have 3 dark chocolates

Answer:

with discount+tax= $23.15

Step-by-step explanation:

board game is 25

discount: 15%

tax: 7.5%

discount means you take off that amount

tax means you add that amount

discount: 15% off

tax: +7.5%

to find 15% of 25 multiply 25 by 15% (15/100=0.15)

25*0.15

= 3.75

then subtract that from 25

25-3.75

=21.25

tax:

0.075*25

=1.875

~1.9

21.25+1.9

=23.15

Answer:

x1 = x 61 = 6

x0 = 1 70 = 1

x-1 = 1/x 4-1 = 1/4

xmxn = xm+n x2x3 = x2+3 = x5

xm/xn = xm-n x6/x2 = x6-2 = x4

(xm)n = xmn (x2)3 = x2×3 = x6

(xy)n = xnyn (xy)3 = x3y3

(x/y)n = xn/yn (x/y)2 = x2 / y2

x-n = 1/xn x-3 = 1/x3

Step-by-step explanation:

i hope this helps if its wrong just delete my answer

Answer:

108 in2

Step-by-step explanation:

Answer:

Option B is the correct answer

Step-by-step explanation:

Option B is the correct answer

[tex] \Sigma_{k=0}^\infty\frac{3}{k(k+2)}[/tex]

Answer:

i think it goes 870m/s

Step-by-step explanation:

30x29=870

Answer:

Therefore we fail to reject the Null hypothesis [tex]H_0[/tex]

Because the is no sufficient evidence to support the claim of the alternative hypothesis [tex]H_a[/tex]

Step-by-step explanation:

From the question we are told that

Sample size [tex]n_1 =52[/tex]

Mean time 1 [tex]\=x_1=24.04\ hours[/tex]

Mean time 2 [tex]\=x_2=24.52\ hours[/tex]

Standard deviation [tex]\partial _1=5.769[/tex]

Standard deviation [tex]\partial _2=5.556[/tex]

Level of significance 0.05

The null hypothesis is [tex]H_o: \mu_1=\mu_2[/tex]

Alternative hypothesis [tex]H_a: \mu_1<\mu_2[/tex]

Generally the test statistics is mathematically represented as

      [tex]Z= \frac{\=x_1-\=x_2}{\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}}[/tex]

     [tex]Z= \frac{24.04-24.52}{\sqrt{\frac{5.769^2}{52}+\frac{5.5562^2}{52}}}[/tex]

     [tex]Z= -0.4321583379[/tex]

     [tex]Z= -0.43[/tex]

From Table the Z-critical value at [tex]\alpha =0.05\ is\ -1.6449[/tex]

Therefore

Zcal> Zcritical

(-0.43)=(-1.645)

Generally we fail to reject the null hypothesis [tex]H_0[/tex] at [tex]\alpha = 0.05[/tex]

Therefore we fail to reject the[tex]H_0[/tex]

Because the is no sufficient evidence to support the claim of [tex]H_a[/tex]

Answer:

214.......................

Answer:

1) Not Congruent

2) Congruent

3) Congruent

4) Congruent

5) Not Congruent

6) Congruent

(I tried my best, hope this helps. Good luck hun)

Step-by-step explanation:

When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there.

If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

Answer:

Distributive property

Step-by-step explanation:

Answer:

−12√3−6√5 or Decimal: -34.201018

Step-by-step explanation:

-3√12-2√27-2√45

3√12=6√3

2√27=6√3

2√45=6√5

=6√3-6√3-6√5

=−12√3−6√5

Answer:

they are just multiplying thr numbers on top for exsample 42÷6=7

Step-by-step explanation:

you should see what numbers dose the bottom numbers have in common and multiply by 15.

Answer:

r = 3/2

Step-by-step explanation:

The common ratio (r) is the number that, when multiplied by the previous (n-1) term, gives the nth term of the geometric sequence ([tex]a_{n} =a_{n-1}*r[/tex]). To find the common ratio, we can take any term and divide it by its preceding term (rearrange the formula to get [tex]r=\frac{a_{n}}{a_{n-1}}[/tex]). If we take 24 and divide it by 16, we get the common ratio of 3/2 ([tex]r=\frac{24}{16}[/tex], [tex]r=\frac{3}{2}[/tex]). Hope this helps.

Answer

Help with what?

Step-by-step explanation:

Answer:

Whats the question

Step-by-step explanation:

?

Answer:

First question: Answer is C

Second question: Answer is C

Third question: Answer is A

Step-by-step explanation:

For the first question, the option is C since there were 5 interviewees per week, which gives a total of 5x12 = 60, that is, an exact sample population of 60.

For the second question, the exact population is of all the 250,000 households that are being contacted by the ACS.

For the third question, the population is 1161 American adults who if they provide information about the political party that they believe has better ideas to lead the country in the 21st century,

Answer:

well, there are 52 weeks in a year, so if you just multiply the pounds of cans by the amount of years, you get 1,300

Step-by-step explanation:

*sigh*

Answer:

0.8

Step-by-step explanation:

Answer:

I believe that answer is 0.05

Step-by-step explanation:

Answer:

We conclude that:

Step-by-step explanation:

Given

We have the function

f(x) = -x² - 10

To determine

f(-4) = ?

Calclulating f(-4)

substitute x = -4 in the function

f(x) = -x² - 10

f(-4) = -(4)² - 10

f(-4) = -16 - 10

f(-4) = -26

Therefore, we conclude that:

Answer:

240 boys

Step-by-step explanation:

boys/girls = 8/9 = boys/270

so just multiply

boys= 8/9 x 270 = 240

Answer:

240

Step-by-step explanation:

270 * 8/9 = 240

so 240:270 is equivalent to 8:9

Answer:

80 people prefered peaches

Step-by-step explanation:

250-68%=80 people

Solve for k

by simplifying both sides of the equation, then isolating the variable.

Exact Form:

k= −45/28

Decimal Form:

k=−1.60714285…

Mixed Number Form:

k= −1 17/28

so its the top one :)

Answer:

Length: 11m

width: 5m

Step-by-step explanation:

Answer:

y= -2x+ 3

Step-by-step explanation:

Step-by-step explanation:

Given system of equations are :

-3y = x+5 ....(1)

y = 2x+2 ...(2)

We need to find the solution of the equations.

Multiply equation (2) by 2.

-6y = 2x+10 ...(3)

Subtract equation (2) and (3).

y-(-6y)= 2x+2-(2x+10)

7y=2x+2-2x-10

7y=-8

y = 8/7

Put the value of y in equation (2)

[tex]\dfrac{8}{7}=2x+2\\\\\dfrac{8}{7}-2=2x\\\\x=\dfrac{\dfrac{-6}{7}}{2}\\\\x=\dfrac{-3}{7}[/tex]

Hence, this is the required solution.

Answer:

34.05

Step-by-step explanation:

Subtract 65 from 575.75 and then divide that number by 15