Write down all the two-digit numbers that can be made using the digits 1,5 and 7.
Each digit can be repeated.
(3 marks)

Answers

Answer 1

Answer:

1,2,5,7,8 and 9. Thus, we have 6 numbers. Then we want to form two-digit numbers without repetition. There are 6 number that is possible to occupy first digit, right? 1,2,5,7,8 or 9. Because it’s without repetition, so the number that have been filled the first digit cannot be the second digit. Thus, the numbers that is possible to occupy second are 5 digits. Thus, there are 6 x 5 = 30 numbers that can we form from those 6 numbers: 1,2,5,7,8 and 9 without repetition.

or by using permutation, there are two place would be filled by six number, so the permutation is 6P2 = 6!/ (6–2)! = 6!/4! = 6 x 5 = 30.

Step-by-step explanation:

Answer 2

Answer:

11,15,17,55,57,77,51,71,75,51

Step-by-step explanation:


Related Questions

I have exam tomorrow solve this please

Answers

Answer:

Hey Hun

since,the sum of all the angles of a triangle=180°

so ...X=180°-(45+55)

X=180-100=80°

Step-by-step explanation:

45+55 +x=180

x=180-100

x=80

plz make me brainliest

Can someone help me please?:D

Answers

Here are the steps I took to solve. The answer is in orange.

What would Triangle in this equation equal?​

Answers

Given :

8 × 4 = (∆ × 7) - (∆ × 3)

To Find :

Value of ∆ = ?

Solution :

[tex] \tt \dashrightarrow 8 \times 4 = ( \triangle \times 7) - (\triangle \times 3)[/tex]

[tex] \tt \dashrightarrow 32 = 7 \triangle - 3\triangle [/tex]

[tex] \tt \dashrightarrow 32 = 4 \triangle [/tex]

[tex]\tt \dashrightarrow \cancel\dfrac{32}{4} = \triangle [/tex]

[tex]\tt \dashrightarrow 8 = \triangle [/tex]

[tex]\tt \dashrightarrow \triangle = 8 [/tex]

Hence, value of ∆ is 8.

uple Choice Worth 1 points)
Simplity
6
7
6.
710
8
69
12
14
Quoti

Answers

Step-by-step explanation:

[tex]( \frac{ {6}^{5} }{ {7}^{3} })^{2} \\ = \frac{ {6}^{10} }{ {7}^{6} } [/tex]

Hope it will help :)

┬─┬ノ( º _ ºノ)

BEGGING PLEASE HELP!!!!
Tell whether the conditional and its converse form a biconditional:
Any fraction is in the simplest form if the only common factor of the numerator and denominator is 1 or -1.

Answers

the biconditional would be Any fraction is in the simplest form if and only if the only common factor of the numerator of denominator is 1 or -1. Make sure the conditional is true before forming a biconditional or a converse.

Round the decimal and solve to find the best estimate.

.÷ 8

Answers

Answer:

0

Step-by-step explanation:

Rounded to the nearest 0.01 or

the Hundredths Place would equal 0.00.

so then you do 0.00 ÷ 8 = 0

HELP PLEASE
What is M CEA?

Answers

Answer:

C.H. Weaver M.D. updated 10/2020 What is the Carcinogenicity antigen (CEA)? CEA is an antigen (small protein) that is found on the surface of many types of cancer cells and high levels of CEA can be detected in the blood of some patients with cancer and the developing fetus.

Step-by-step explanation:

Select the quadrant or axis where each ordered pair is located on a coordinate plane.
Quadrant 1
Quadrant 11
Quadrant in
Quadrant IV
Qaxis
yaxis
(0, 3)

Answers

(2,4) is located in QUADRANT I

(0, -3) is located in the  y-axis

(-1, 1/2) is located in Quadrant II

A chocolate pastry cost Rs.26 and a fruit pastry cost Rs.18 Jenny buys both
these pastries together for Rs. 500 how many of each did she buy ?

Answers

Required Answer:-

Let's assume the no. of chocolate pastry bought = x

and the no: of fruit pastry bought = y

➣ Cost of 1 chocolate pastry = Rs 26

➣ Cost of x chocolate pastry = Rs 26x

➣ Similarly, cost of fruit pastry = Rs 18 y

➣ It is given that the total cost = Rs 500

Therefore, Rs 26x + Rs 18 y = Rs 500

If we assume x = 4 and y = 22 , then

26 x 4 + 18 X 22 = Rs 500

104 + 396 = 500

⇝ No. of chocolate pastries bought = 4 ✔

⇝ No. of fruit pastries bought = 22 ✔

And we're all done! :D

6) If 2 goats can be kept in every square yard, how many goats can be kept in goat
section.
a) 40 b)15 c)20 d)30


Shouldn't the answer for this question be 80 and if not then the ques is wrong...
Right??​

Answers

yeah I think it's your answer. 80 is th ans

Petra takes $15 to the roller skating rink to spend on skates and food. Suppose it costs $4.75 to rent roller skates. Define a variable and write an inequality to represent the amount of money Petra can spend on food. Then solve the inequality and interpret the solution. Explain your reasoning.

Answers

The amount of money Petra can spend on food must be less than $10.25.

Inequality

Inequality is an expression used to how the non equal comparison of two or more numbers and variables.

Let x represent the amount of money Petra can spend on food. From the question

x + 4.75 ≤ 15

x ≤ 10.25

The amount of money Petra can spend on food must be less than $10.25.

Find out more on Inequality at: https://brainly.com/question/24372553

what is the percent decrease of 2,400 to 2,100?

Answers

Ans : 12.5%

#You times it with ×100 to get the percentage

#Part of the number/total number

2400 - 2100 = 300

300/2400 × 100 = 12.5%

So the percentage decreased is 12.5%

Find the mZNPI
Exterior angles of triangle

Answers

Given:

The figure of a triangle.

To find:

The exterior angle of the triangle m∠NPI.

Solution:

According to the exterior angle theorem, value of exterior angle of a triangle is equal to the sum of the opposite interior angles.

Using the exterior angle theorem, we get

[tex]m\angle NPI=65^\circ+78^\circ[/tex]

[tex]m\angle NPI=143^\circ[/tex]

Therefore, the measure of angle NPI is 143 degrees.

HELP PLSSS, 20 POINTSSS

Answers

Answer:

m1=43

Step-by-step explanation:

78-35=43

Aniya went bowling and spent $5 to rent bowling shoes and paid $6.75 per game bowled. If Aniya spent $25.25 total, answer the following questions
A Write an equation
B Solve the equation
C Find the cost for 10 games

Answers

Answer:

Aniya only needs to pay for her shoes once so $5 is your B or y-intercept. $6.75 is your slope. So your equation in y-intercept form will be y = $6.75x + $5. Now plug in the numbers to find how many games she played if she spent $25.25.

Equation: y = $6.75x + $5

Answer for B:

($25.25 - $5) / $6.75

The answer: She played three games.

Answer for C:

y = $6.75 * 10 + $5

The answer: She paid $72.5 if she bought 10 games and rented a pair of shoes.

Sara needs one third of a yard of ribbon to make a bow. She has 10 yards of ribbon. How many bows can she make?

Answers

Answer:

30 bows

Step-by-step explanation:

To find how many bows she can make, divide 10 by 1/3

10 / (1/3)

= 30

So, Sara can make 30 bows

Answer:

30

Step-by-step explanation:

If she needs just one third then she can make three ribbons out of a yard. so you multiply 3 by the number of yards she has so:

3 x 10 = 30

The width of a rectangle is the length minus 6 units the area of the rectangle is 27 units

Answers

Answer:

length = 9 units

Step-by-step explanation:

l = length

n - 6 = width

A = n(n - 6)

A = n² - 6n

27 = n² - 6n

n² - 6n - 27 = 0

(n + 3)(n - 9) = 0

n = -3, n = 9

length must be 9 because it cannot be a negative value

Need Help with this Geometry Question! I need to find value of missing side

Answers

Answer:

w=4

y= 4 root two

Step-by-step explanation:

so since it is right isocales

w=4

y=4 root 2

What is the area of the triangle?
40
75
60
120

Answers

Answer:

40 i think

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

I used the formula, calculated the numbers, and got the results. In other words it is base x height divided by 2. 15x 8 divided by 2 = 60

Hope this is helpful! I could be rewarded with the Brainliest badge!

will mark brainliest !!!!!!!! What is the perimeter of the composite figure?



119.5 cm

107.5 cm

85 cm

97 cm

Answers

Answer:

107.5cm

Step-by-step explanation:

I just took the test

Answer:

107.5

Step-by-step explanation:

7/8 as a decimal rounded to the nearest tenth. Write 3x+4y=19 in intercept form Solve 3X +7=35. What is a transformation that turns around a point called SOMEONE PLS HELP ME WITH THESE QUESTIONS 

Answers

Answer:

7/8 ≈ .9

y = -3x/4 + 4.75

x = 9 ⅓

Rotation

Step-by-step explanation:

1.) 7/8 = 0.875 The hundredths place is 7, which means we round up to 0.9

2.) Isolate the y on the left. Then divide both sides by 4

3.) Subtract 7 from both sides, then divide both sides by 3

Rotation turns around a point Reflection flips across a line.

Mr. Charles needs to have at least 11 students sign up for homework help in order to use the computer lab. The inequality h ≥ 11 represents the number of students h who must sign up. Select possible solutions of the inequality. Mark all that apply. A 10 B 14 C 8 D 6 E 12 F 11

Answers

Answer:  Required solution: B. 14,  E. 12 , F. 11.

Step-by-step explanation:

Requirement: at least 11 students sign up for homework help in order to use the computer lab.

Given inequality: h ≥ 11  that represents the number of students h who must sign up.

i.e. Solution must be 11 or a number greater than 11.

i.e. Solution can be 11, 12, 13, 14 , ...

Hence, the correct options are B. 14,  E. 12 , F. 11.

If b = 5, what is the value of the following expression? 7 + 5b / 4 -1

Answers

Answer:

either 32/3 or if that was supposed to be 4(-1) then the answer would be -8

Step-by-step explanation:

I need help on this its due tomorrow

Answers

Answers:

2. 90
7. 120
11. 144

Hope this helps :)

is f (x) = 6x + 2 a linear function or not? WHAT IS THE M AND B​

Answers

Explanation

A linear function has an equation of y = mx+b where m = slope and b = y-intercept. The function also has a line graph. By a line graph, the graph must have slope. That means the slope must not equal to 0 or undefined to be a linear function.

Further Explanation

A linear function has both domain and range as set of all real numbers because you are able to solve for x-term when inputting any y-value or solve for y-term when inputting any x-value. We can also find the x-intercept by substituting the value of y to 0 and basically solve for x-term. If we want to know the y-intercept, we can substitute x-term to 0 and solve for y. But most people would only look at b-term from y = mx+b because b-term is the y-intercept of function.

Answer

From your question, the function is indeed a linear function. The m-term and b-term both are from y = mx+b where m = slope and b = y-intercept.

Therefore, from y=6x+2. The m-value would be 6 and b-value would be 2

You find that your watch gains 2 minutes in 6 hours. how much will in gain in three days?

Answers

Answer: 12

Step-by-step explanation:

Math geometry placemats

Answers

Let's call the missing side ? as shown in the problem.

Now set up a equation where everything adds up to 28x+11

?+8x+2+8x+2+5x+12=28x+11

?+21x+16=28x+11

?=28x-21x+11-16

?=7x-5

So 7x-5 is the missing side!

Hope it helps :D

Help with these questions please! Worth 40 points and brainliest!!! Explain your answers!!!!

Answers

Answer:

1. DF=GH 2. I'm not sure, sorry 3. I think it is 41.

Step-by-step explanation:

For question one, just find the angles that are similar :).

For 3, I just subtracted the angles, :).

1. DF=GH 2. I'm not sure, sorry 3. I think it is 41. is the answer to the question

Ryan buys some jumpers to sell on a stall. He spends £130 buying 80 jumpers. He sells 75% of the jumpers for £9 each. He then puts the rest of the jumpers on a Buy one get one half price offer. He manages to sell half the remaining jumpers using this offer. How much profit does Ryan make?

Answers

Answer:

£477.5

Step-by-step explanation:

According to the problem, calculation of given data are as follows,

Total jumper bought = 80

Total spends = £130

Now, first sell 75% of jumper for £9 each, then

75% × 80 = 60

So, 60 × £9 = £540

Remaining jumper = 80 - 60 = 20

Selling half of remaining, 20÷ 2 = 10

Selling 10 jumper = (5 × £9) + (5 × £4.5 ) ( buy one get one half price)

Income of 10 = £45 + £22.5 = £67.5

So, total income by selling 70 jumpers = £540 + £67.5 = £607.5

Hence, Profit = £607.5 - £130

= £477.5

50 POINTS AND BRAINLIEST ASAP

Answers

Answer:

Complementary Angles: The angle with 32˚ and 48˚

Supplementary Angles: The angle that is together with the angles of 107˚ and 73˚

Neither: The angle with 101˚ and 77˚ since

Step-by-step explanation:

Complementary angles are angles that sum up to 90˚ so 32 plus 48 is 90 which makes it a complementary angle.

Supplementary angles are angles that sum up to 180˚ so 107+73 is 180 which makes it a supplementary angle.

To find the angle with "neither" Complementary nor Supplementary you use the process of elimination

Hope this helps!

Answer:

Complementary Angles: The angle with 32˚ and 48˚

Supplementary Angles: The angle that is together with the angles of 107˚ and 73˚

Neither: The angle with 101˚ and 77˚ since

Step-by-step explanation:

Complementary angles are angles that sum up to 90˚ so 32 plus 48 is 90 which makes it a complementary angle.

Supplementary angles are angles that sum up to 180˚ so 107+73 is 180 which makes it a supplementary angle.

To find the angle with "neither" Complementary nor Supplementary you use the process of elimination

Hope this helps! please give brainliest.

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