Which expression is equivalent to 63 + 27?
A. (9 x 7)(
93)
B. 9(7 + 3)
C. (9 + 7)(9 + 3)
D. 9 + (7 * 3)

Answers

Answer 1
The answer would be B.

Related Questions

Find the length of the third side right triangle

Answers

It would be 12

12^2 + 9^2 is 225
15^2 is 225
therefore 12^2+9^2=15^2

Please answer this properly​

Answers

Answer:

1. Fraction = 0.36, 36% and 36/100

Find the surface area
No link please and thank you

Answers

Answer:

1200 in^2

Step-by-step explanation:

SA = 2B + Ph

SA = 2(8 * 15 / 2) + 40(27)

SA = 1200

Question 6 of 10
What is the midpoint of the segment shown below?
10 --
(3,5)
O A. (7)
(2.2)
B. (5,7)
10
O C. (5.3)
O D. (7/ 2 )
SUBMI

Answers

Answer:

(2.5 , 3.5)

Step-by-step explanation:

We can use the midpoint formula . Here the points are , (2,2) and (3,5) .

• Using Midpoint Formula :-

⇒ M = { (x1 + x2)/2 , (y1 + y2)/2 }

⇒ M = ( 2+3/2 , 5+2/2 )

⇒ M = ( 5/2 , 7/2 )

M = ( 2.5 , 3.5 )

Hence the midpoint is (2.5 , 3.5)

the tallest building in houston in 1,002 feet tall the tallest building in dallas is 307 yards tall which of the following is true F. the dallas building is 27 yd taller than the houston building G. the houston building is 27 yd taller than the dallas building H. the dallas building is 695 ft taller than the houston building J. the houston building is 695 ft taller than the dallas building A. 200 x 80 cm x 1 km/ 1,000 cm B. 200 x 80 cm x 1 cm/ 100 C. 200 x 80 cm x 100cm/1 m x 1,000 m/ 1 km D. 200 x 80 cm x 1 m/ 100 cm x 1 km/ 1,000 m

Answers

Answer:

The tallest building in the city is the Bank of America Plaza, which rises 921 feet (281 m) in Downtown Dallas and was completed in 1985.

Step-by-step explanation:

Answer:

G. the houston building is 27 yd taller than the dallas building

Step-by-step explanation:

1,002 ft

= 334 yards (Houston)

307 yards (Dallas)

F. Incorrect because the Houston building is taller.

G. 334 - 307 = 27 (This is true)

695 ft is not equal to 27 therefore, H and J are not true.

With individual lines at its various windows, a post office finds that the standard deviation for normally distributed waiting times for customers on Friday afternoon is 7.2 minutes. To test this claim, the post office experiments with a single, main waiting line and finds that for a random sample of 25 customers, the waiting times for customers have a standard deviation of 3.5 minutes. a) With a significance level of 5 percent, conduct an appropriate test on the claim. (State your null hypothesis, test statistic, critical value, decision rule, conclusion) (15 points) b) What is the 95% confidence interval for the population variance

Answers

Answer:

H0 : σ²= 7.2²

H1 : σ² < 7.2

We can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

Step-by-step explanation:

H0 : σ²= 7.2²

H1 : σ² < 7.2²

The test statistic :

X² = [(n - 1)*s² ÷ σ²]

s² = 3.5

n = sample size = 25. ; s²

X² = [(25 -1)*3.5² ÷ 7.2²

X² = (24 * 3.5^2) / 7.2^2

X² = 5.67

Pvalue from Chisquare statistic :

P(X² < 5.67) = 0.000042

Pvalue < α ; we reject the Null.

Hence, we can conclude that the mean waiting time of customers vary less, Than 7.2 minutes.

Jose bought a 10-pound bag of food for his dog.
He fed his dog one-half of a pound of dog food
each day. Which equation is used to determine,
y, the amount of dog food that remains at the
end of each day, x?
The answer choices are on the top. Also please don’t send me links :) <3

Answers

Answer:

B

Step-by-step explanation:

so your starting value (10) is not going to have the x by it. instead he is feeding his dog so it will be subtracted from.

x is the number of days he can feed his dog. this will be mulitplied with something.

0.5 is how much he feeds his dog each day. this will be times the number of days or x.

so it makes your answer [tex]y=10-0.5x[/tex]

how much it must decrease 65432 to reach 100000​

Answers

Answer:

165432

Step-by-step explanation:

165432 - 65432 = 100000

Vicki made 3 quarts of lemonade to serve at her party. she will serve the lemonade in glasses that hold 1 cup of liquid each. how many of these glasses can Vicki fill with lemonade? ( giving extra points etc. )

A : 16

B : 12

C : 14

D : 8

Answers

Answer: 12, B

Step-by-step explanation: There are 2 pints in a cup, and two cups in a quart. so 2 plus 2 is 4. 4 times 3 equals 12. so it is 12

Function f(x) has a jump discontinuity at x = 8. Which statement identifies possible one-sided limits at x = 8?

O

lim f(x) DNE and lim F(x) DNE

X-8


tim f(x) DNE and lim f(x) = 120

X-8

Olim f(x) = 85 and lim f(x) = 85

X-8


lim f(x) = 85 and lim f(x) = 120

X 81

Answers

It’s :lim f(x)=85 and lim f(x)=120

The limit of the given functions f(x)=85 and lim f(x)=120.

We have given that,

Function f(x) has a jump discontinuity at x = 8.

We have to determine a statement that identifies possible one-sided limits at x = 8.

What is the meaning of discontinuity?

lack of continuity or cohesion.  gap sense 5. The property of being not mathematically continuous is a point of discontinuity. an instance of being not mathematically continuous, especially a value of an independent variable at which a function is not continuous.

lim f(x)=85 and lim f(x)=120

To learn more about limit visit:

https://brainly.com/question/26867415

#SPJ2

3(4x – 2.5) = 5(0.4x + 10) + 33
what is the solution? ASAP

Answers

Answer:

3(4x - 2.5) = 5(0.4x + 10) + 33

3•(4•x - 2.5) = 5•(0.4•x + 10) + 33

10x = 90.5

x = 181/ 20

= 9.05

Step-by-step explanation:

9514 1404 393

Answer:

  x = 9.05

Step-by-step explanation:

Start by eliminating parentheses.

  12x -7.5 = 2.0x +50 +33

  10x = 90.5 . . . . . . . . . . . . . add 7.5-2x

  x = 9.05 . . . . . . . . . . divide by 10

Pls help me I don’t know I just need 5 and 6 to be answered

Answers

Answer:

5. Mark had 6 laps and John has 42 laps. So you could do a sentence like: John has 42 laps and Mark has 6 laps. What is the diffrence between the two laps?

6. Im not sure about this one :/. Im truly sorry. :(. Good luck tho!

Step-by-step explanation:

Need help on this Its almost summer need to pass :D

Answers

Answer:

3

Step-by-step explanation:

8*3 + 8*3

(24) + (24) = 48

8*6 = 48

find the area of the shape below
I WILL MARK BRAINLEST!!

Answers

Answer:

25.75 sq units

Step-by-step explanation:

Big triangle = 1/2 * 3.5 * 9 = 15.75

Tiny triangle = .5 * 2 * 2 = 2

Medium triangle = .5 * 2 * 5 = 5

square = 2 * 2

15.75 + 4 + 5 + 2

Find the distance between the two numbers on the number
line.

Answers

Answer:

3 1/2

Step-by-step explanation:

|-7| - |-3 1/2| = 3 1/2

water tank is being filled with water. Before water is pumped in, the water level in the tank is 12 inches high. After 20 minutes, the water level is 54 inches high.
If t represents the time in minutes and h represents the water level, which of the following equations can be used to model this situation?
A. H = 42 + 12t
B. H = 2.1t - 12
C. H = 12t + 2.1
D. H = 2.1t + 12

Answers

Answer:

D. H = 2.1t + 12

Step-by-step explanation:

Let us assume the t be the time in minutes

And h be the water level

Now before reaching to the equation that need to be used

before this, determine the inches per minute i.e.  

= 54 inches - 12 inches

= 42 inches in 20 minutes.

Now for per minute, it would be

= 42 inches ÷ 20 minutes

= 2.1 inches per minute

After this, multiply the inches per minute with the minutes t and add the sale to the beginning value i.e. 12

So the equation is

H = 2.1t + 12

hence, the last option is correct

Ms. Sandoval walked 2 miles a
day for 5 days. If she did this for
8 weeks, what was the total
amount of miles she walked?

Answers

Answer:

Step-by-step explanation:

since 5 has nothing to do with this question lets put the 5 aside and focus with the 2 miles and the 8 weeks.. if there is 7 days in a week and there is 8  weeks that is 56 days in total.. multiply by 2 miles per day would equal...                  

i believe (112)

Find the perimeter and area of each quadrilateral.​

Answers

The red one is A-49 P-28. Orange is A-96 P-40

During a marathon, Jane ran 6 miles. Jessica ran 5.068 miles. How many more miles did Jane run than
Jessica?

Answers

Answer:

0.932 miles

Step-by-step explanation:

To find out the difference we subtract

6 - 5.068 = 0.932

Add the units (miles)

0.932 miles

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

0.9 miles

Step-by-step explanation:

Solve

Given:

Jane = 6 miles

Jessica = 5.068

To find: How many more miles did Jane run than  Jessica

Which is simply the difference between both miles.

So,

6 - 5.068 = 0.932

In the nearest tenths, Jane ran 0.9 miles more than Jessica.

In triangle ABC, AB = 5 inches and BC = 3 inches. Which of the choices represents all possible values for AC, inches?
- 3 < AC < 7
- 3 ≤ AC ≤ 7
- 2 < AC < 8
- 2 ≤ AC ≤ 8

Answers

Answer:

-2 < AC < 8

Step-by-step explanation:

The last side has to be less than the sum of the other 2 sides, or less than 8. The only answer choice with this is the 3rd one.

The point P = (2/5, y) lies on the unit circle shown below. What is the value of y in
simplest form?

Answers

Using the unit circle, it is found that the value of y is given by:

[tex]y = \pm \frac{\sqrt{21}}{5}[/tex]

What is the unit circle?The unit circle is a circle centered at the origin with radius 1, hence, it's equation is given by:

[tex]x^2 + y^2 = 1[/tex]

At point P, we have that [tex]x = \frac{2}{5}[/tex], and hence, we have to find the value of y.

[tex]x^2 + y^2 = 1[/tex]

[tex]\left(\frac{2}{5}\right)^2 + y^2 = 1[/tex]

[tex]\frac{4}{25} + y^2 = 1[/tex]

[tex]y^2 = 1 - \frac{4}{25}[/tex]

[tex]y^2 = \frac{21}{25}[/tex]

[tex]y = \pm \sqrt{\frac{21}{25}}[/tex]

[tex]y = \pm \frac{\sqrt{21}}{5}[/tex]

To learn more about the unit circle, you can take a look at https://brainly.com/question/16852127

Ashley had $14.80. She spent $2.60 on lunch, then
brother gave her the $6 he owed her. What does she
now?
$11.40
$6.20
$18.20
$23.40

Answers

Answer: $18.20

Step-by-step explanation:

14.80-2.60 is 12.20.

her brother gives her 6 dollars

12.20+6 is 18.20, which that is the answer.

Answer:

18.20

Step-by-step explanation:

I got this because she got 6 making her total 20.80 then I subtracted what she spent for lunch

David ordered 210 face masks. 50% of the masks are blue. A fifth of the total masks are white and the remainder are black masks. How many black masks

Answers

Answer:

63

Step-by-step explanation:

50 % of 210 = 105

one fifth of total = 42

black masks = (105+42=) - 210 = 63 ans.

The following table represents the highest educational attainment of all adult residents in a certain town. If a resident who is 30-49 years old is chosen at random, what is the probability that they have completed a bachelor's degree and no more? Round your answer to the nearest thousandth.

Answers

Answer:

If a resident who is 30-49 years old is chosen at random, the probability that they have completed a bachelor's degree and no more is 29.13%.

Step-by-step explanation:

Taking into account the educational table provided, if a resident who is 30-49 years old is chosen at random, to determine what is the probability that they have completed a bachelor's degree and no more the following calculation must be performed:

30-39 Bachelor's degree = 1576

40-49 Bachelor's degree = 443

30-39 Total = 4062

40-49 Total = 2869

4062 + 2869 = 100

1576 + 443 = X

6931 = 100

2019 = X

2019 x 100/6931 = X

201900/6931 = X

29,129 = X

Therefore, if a resident who is 30-49 years old is chosen at random, the probability that they have completed a bachelor's degree and no more is 29.13%.

Answer:

0.296

Step-by-step explanation:

Have completed bachelor’s degree: 1008

Age 30-39: 3407

Probability : [tex]\frac{1008}{3407}[/tex]​

≈0.296

Maya counts 55 passengers on the bus. There were only 50 passengers on the bus. What is Maya's percent error?

Answers

Answer:

I don't know.

2
In 2002, there were 450 households in the city of Klean that recycled. Each year since 2002, the number of
households that recycle has grown by 8%. Write a function to represent the number of households
in Klean that recycle x years since 2002.

Answers

Answer:

450 x 1.08 ^ X = N

Step-by-step explanation:

Since in 2002, there were 450 households in the city of Klean that recycled, and each year since 2002, the number of households that recycle has grown by 8%, to write a function to represent the number of households in Klean that recycle X years since 2002 the following mathematical reasoning should be raised:

450 (initial number) x 1.08 (8% is added to the initial number) ^ X (years) = Number of households that recycle

450 x 1.08 ^ X = N

Thus, for example, if said number were calculated in 2007, that is, 5 years after 2002, the equation would apply as follows:

450 x 1.08 ^ 5 = N

450 x 1.4693 = N

661.20 = N

Which expression is equivalent to 3(x + 4)?

Answers

Answer:

3x + 12

Step-by-step explanation:

Use the distributive property.

3(x + 4) = 3 * x + 3 * 4 = 3x + 12

Answer: 3x + 12

Answer:

3x+12

Step-by-step explanation:

I’ll give BRAINLY I just need help

Answers

Answer:

[tex]3x - 8 = 2x + 12 \\ x = 12 + 8 = 20 \\ 180 - 2x - 12 = y \\ y = 180 - 40 - 12 = 128[/tex]

A jar contains 10 red marbles 18 blue marbles and 12 white marbles. Which multiplication will halo you find the sorted probability of picking a red marble, replacing it, then picking a blue marble?

Answers

Answer:

[tex]\frac{9}{80}[/tex]

Step-by-step explanation:

So there is 40marbles in total

The probability of picking a red marble first is [tex]\frac{10}{40}[/tex] because there is 10 red marbles out of 40 total marbles

Then you replace it and I'm going to assume that you put the red marble back.

Then you would still have 40 marbles and the probability of picking a blue one is [tex]\frac{18}{40}[/tex] because there is 18 blue marbles.

Then you multiply [tex]\frac{10}{40}[/tex] and [tex]\frac{18}{40}[/tex] and that is [tex]\frac{9}{80}[/tex]

Hope this helps and If I'm wrong pls tell me.

The coordinates of the vertices of the triangle shown are A(2, 13), B(10, 5) and C(12, 14). What is the length of segment AB in units?

Answers

9514 1404 393

Answer:

  8√2 units

Step-by-step explanation:

The distance formula is useful.

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((10 -2)² +(5 -13)²) = √(64 +64)

  d = 8√2

The length of AB is 8√2 units.

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