last question I have ​

Answer:

C

Step-by-step explanation:

According to Math.way C would be the correct answer :)

Answer:

x = 2 y = 1

Step-by-step explanation:

Given the system of equation

Y+ 2x = 5 ...1

4y+ 5x=14 ,,,,2

From 1;

y =5 - 2x ....3

Substitute 3 into 2

4(5-2x) + 5x = 14

20 - 8x + 5x = 14

20 - 3x = 14

-3x = 14-20

-3x = -6

x = 6/3

x = 2

Since y = 5-2x

y = 5-2(2)

y = 5-4

y = 1

Hence the required solution is (2,1)

Answer:

Total surface area = 434 cm²

Total volume = 470 cm³

Step-by-step explanation:

1. The prism can be decomposed into two rectangular prisms which are the bigger rectangular prism and the smaller rectangular prism

✔️Total surface area of the prism = (surface area of the bigger prism - area of the face joined to the smaller prism) + (surface area of the smaller prism - area of the face joined to the bigger prism)

Surface Area of bigger prism = 2(LW + LH + HW)

L = 10 cm

H = 8 cm

W = 9 - 5 = 4 cm

Area of bigger rectangular prism = 2(10*4 + 10*8 + 8*4)

= 304 cm²

Surface area of the smaller prism = 2(LW + LH + HW)

L = 10 cm

H = 3 cm

W = 5 cm

Area of bigger rectangular prism = 2(10*5 + 10*3 + 3*5)

= 190 cm²

Area of the face joining both rectangular prisms = L*W

L = 10 cm

W = 3 cm

Area = 10*3 = 30 cm²

✅total surface area of the prism = (304 - 30) + (190 - 30) = 274 + 160 = 434 cm²

2. Volume of the prism = volume of the bigger rectangular prism + volume of the smaller rectangular prism

✔️Volume of the bigger rectangular prism = L*W*H

L = 10 cm

H = 8 cm

W = 9 - 5 = 4 cm

Volume = 10*8*4 = 320 cm³

✔️✔️Volume of the bigger rectangular prism = L*W*H

L = 10 cm

H = 3 cm

W = 5 cm

Volume = 10*3*5 = 150 cm³

✅Total Volume of the prism = 320 + 150 = 470 cm³

Answer: seven hundred thousand

Answer:

The 7 represents the 10,000

Step-by-step explanation:

Its not the hundred because the 2 in 280 is

Answer:

your answer is 406.

Step-by-step explanation:

4/5 x 10 will equal to 8. 8 times 17 equals 406.

Answer:

what kind of air

Step-by-step explanation:

Answer:

B 1/2 x (5.7) x (1.9)

Step-by-step explanation:

Answer:

Boris=504 keisha=120

Step-by-step explanation:

First you would start off by Multiplying 4x126 the result of that is= 504 so thats how much Boris sent. To get the answer to how many jose sent you simply just subtract 6-126 and that should result in 120

Answer: D

Step-by-step explanation:

only answer that makes sense. one at -2 is definitely an endpoint, one at 0 is infinite because you can’t see ends aren’t indicated.

Answer:9

Step-by-step explanation:

Answer:

I think it's either A or D

Answer:

The 98% confidence interval for the true population proportion of all New York students who favor year round school is (0.3083, 0.4383).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].

A survey of 300 students from a New York State School District reveals that 112 favor year round school with two week vacations every ten weeks.

This means that [tex]n = 300, \pi = \frac{112}{300} = 0.3733[/tex]

98% confidence level

So [tex]\alpha = 0.02[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.02}{2} = 0.99[/tex], so [tex]Z = 2.327[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3733 - 2.327\sqrt{\frac{0.3733*0.6267}{300}} = 0.3083[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3733 + 2.327\sqrt{\frac{0.3733*0.6267}{300}} = 0.4383[/tex]

The 98% confidence interval for the true population proportion of all New York students who favor year round school is (0.3083, 0.4383).

Answer:

I don't know I'm sorry.............

Answer:

3.03 (if you're rounding to nearest hundredth, 3 if nearest whole/tenth.

Answer:

The answer is all real numbers is smaller than 2.

Step-by-step explanation:

Answer:

2280 the volume

Step-by-step explanation:

So one box = 480

So then what about 6 boxes?

you do 480 x 6 =   2880

480+ 480+ 480+ 480+480+480= 2880

Answer:

Decision Rule

The critical region for one tailed test with 7 d.f is t > 1.415 for

H0 : ud ≤ 0 against the claim Ha: ud > 0

Step-by-step explanation:

The data given is

Population mean = ud= 0

Sample difference mean = d`= 3.125

Sample difference standard deviation = sd= 2.911

Sample size= n= 8

Formulate the null and alternate hypotheses as

H0 : ud ≤ 0 against the claim Ha: ud>0

The significance level ∝= 0.1

The degrees of freedom = n-1 = 8-1 = 7

The critical region for one tailed test with 7 d.f is t > 1.415

The test statistic is

t= d`- ud/ sd/ √n

Putting the values

t= 3.125-0 / 2.911/√8

t= 3.125/1.0292

t= 3.036

since the calculated value of t falls in the critical region we reject the null hypothesis .

Answer:

3

Step-by-step explanation:

So, the little arow underneath lim that says x>1, this means that the qiuestion is asking:

What is the limit when x gets to 1?

We can use the quadratic they give us to solve this. Now, if you are doing this, you should know how to make a quadratic equation. So instead of making this long and tedious for you, I will use a graphing calculator.

So lets look at the graph below, specificly where x=1

as x reaches 1, what does the y coordinates look to be about? 3.

So we can conclude that the answer is that when x→1, y=3

I hope this helps!

Answer:

Yes, the graph makes it appear as if sales increased three folds.

Step-by-step explanation:

The graph presented by the advertising company is misleading, as it attempts to exaggerate the effect of its advert on sales. This can be attributed to the scale which is isn't uniform.

Last year sale was about 137000 and it grew to 150000 as a result of advertisement.

But from the bar chart, it seems there was three times increase in sales.

Answer:

I would choose D

Step-by-step explanation:

im sorry if im wrong :( im not good at math..

Answer:

$10.50

Step-by-step explanation:

$39.90 ÷ 3.8 pounds

= 10.50263157894735

after rounding, your answer must be 10.50

hope this helps.

7,953,952,567 (I'm not sure I looked for it. This number appeared to me)

Answer: 5 meters long

Step-by-step explanation:

18 - 2 (4) = 10

10/2 = 5 meters

Answer:

D

Step-by-step explanation:

we can find x/y by multiply 3a/b * 3a/b

x/y = 9a^2/b^2

Answer:

The second answer choice

Step-by-step explanation:

The pyramid shown is a triangular pyramid. A triangular pyramid consist of 4 faces; 1 triangular base and 3 triangular lateral faces.

Hence, the correct answer would be the second choice.

Answer:

The anwser is number 4

Step-by-step explanation:

Answer:

area of rectangle = 110 cm^2

Step-by-step explanation:

here's your solution

=> length of rectangle = 35 cm. [ given ]

=> width of rectangle = 20 cm. [ given ]

=> we need to find area ,

=> area of rectangle = 2(length + width)

=> area of rectangle = 2(35 + 20)

=> area of rectangle = 2*55 =

=> area of rectangle = 110 cm^2

[tex] \: hope \: it \: helps..[/tex]