Mathematics College

if a *b=4a+2ab find the value of
a) 2*5
b)3*4​

Answers

Answer 1

Answer:

a

Step-by-step explanation:

First identify which number represent the given letters

in the first question a)2 represents a, while 5 represents b.Then substitute 2 for a and 5 for b in the given expression.Do this for the second question.

If A *b=4a+2ab Find The Value Of A) 2*5b)3*4

Related Questions

Evaluate x + 2.7 for x= -1.5.
The value of the expression is

Answers

[tex]\text{x}=-1,5\\\\\text{x}+2,7=-1,5+2,7=2,7-1,5=\boxed{1,2}[/tex]

Luis buys 0.56 pound of power pasta. Mariana buys 0.27 pound of power pasta. How much do they buy in all?

Answers

Add the two amounts together:

0.56 + 0.27 = 0.83 pounds total

Word Problem:

Luis buys 0.56 pound of power pasta. Mariana buys 0.27 pound of power pasta. How much do they buy in all?

Solution:

First, understand the problem.

Luis buys 0.56 pounds of power pasta.

Mariana buys 0.27 pound of power pasta.

Then, add the bus of Luis and Mariana.

Luis buys + Mariana buys = N0.56 + 0.27 = NN = 0.83

Answer:Therefore, 0.83 buy in all.

Malachy rolls a fair dice 168 times.
How many times would Malachy
expect to roll an even number?

Answers

Step-by-step explanation:

no of even numbers=84

84/168

1/2

plsss mark brainliesttt

For the function f(x) = -x^3 + 2x^2 + x - 2

a. Show that (x - 1) is a factor of f(x).

b. Find other factors.

c. Sketch the graph of f(x) = -x^3 + 2x^2 x - 2

Answers

Answer:

Step-by-step explanation:

a)

[tex]f(1)=-1^3+2*1^2+1-2=-1+2+1-2=0\\\\[/tex]

b)

Rationnel roots are divisor of -2: -1,1,-2,2

[tex]f(-1)=-(-1)^3+2*(-1)^2+(-1)-2=1+2-1-2=0\\\\\begin{array}{c|cccc}&x^3&x^2&x&1\\---&---&---&---&---\\&-1&2&1&-2\\x=1&&-1&1&2\\&-1&1&2&0\\\\x=-1&&1&-2\\&-1&2&0\\---&---&---&---&---\\\end {array}\\\\\\f(x)=-x^3+2x^2+x-2=(x-1)(x+1)(-x+2)\\\\[/tex]

c) see picture

If f(x) = 3x +5/x what is f(a+2)?

Answers

I was a little confused so I solve it two different ways and got different answers so pls read through this carefully

Substitute a+2 instead of x
That would look something like: 3(a+2)+5/a+2
Now simplify:
3a+6+5/a+2
3a+11/a+2

3(a+2) +5/(a+2)
3a+6 + 5/(a+2)
LCM: (3a(a+2) + 6(a+2) +5)/a+2
So your answer will be (3a^2 + 12a + 17)/(a+2)

I hope this helps :)



Referring to the figure, does the triangle shown have
rotational symmetry?
a. yes
b. no

Answers

Referring to the figure, does the triangle shown have

rotational symmetry?

a. yes

b. no

Trevor has 40 contacts in his phone. Six are coworkers, 8 are
family members, and 26 are friends. If Trevor accidentally
calls a random contact, what is the probability he will call a
friend?

Answers

Answer:

0.65

Step-by-step explanation:

There are 26 friends on his phone.

There's a total of 40 contacts.

P(Friend) = 26/40

P(Friend) = .65

if BC=2x-3 and AC=2x+10, find the length of AB

Answers

Answer:

ac

Step-by-step explanation:

xcsddddssss

Find the distance between the pair of points. E(9,-4) F(-3,5)

Answers

Answer:

5

Step-by-step explanation:

√

(

−

3

−

9

)

2

+

(

5

−

−

4

)

2

 

=  

√

(

−

12

)

2

+

9

2

=  

√

144

+

81

=  

√

225

= 15

Distance between points (9, -4) and (-3, 5) is 15

5. The graph shows the relationship between the number of cups of flour and the propos
number of cups of sugar in Lin's favorite brownie recipe.
3
cups of flour
1
.
1 2 3 4 5
cups of sugar
The table shows the amounts of flour and sugar needed for Noah's favorite brownie
recipe.

Answers

Answer:

what are you confused on??

Alix is 6 inches shorter thelan Ben. Alix is p inches tall. Write an expression to show how tall Ben is

Answers

Answer:

p+6

Step-by-step explanation:

select the correct answer
1.caul will be the measure of one of the legs of a right triangle, if its hypotenuse is 10 cm and leg b is 6 cm, what will be the measure of leg a?
a) 8 cm
b) 5 cm
c) 4 cm
d) 12 cm​

please

Answers

Answer:

answer us a) 8cm

Step-by-step explanation:

a^2 + 6^2 = 10^ 2

a^2 + 36 = 100

subtract 36 from 100

a^2 = 64

square root of 64 is 8

What is the fraction in simplest form?

14/16


79

28/32

78

7/16

Answers

Answer:

7/8

Step-by-step explanation:

Divide the top and bottom by 2.

14 / 2 = 7

16 / 2 = 8

7/8

f(x)=2x
2
−x+9
\text{Find }f(4)
Find f(4)

Answers

Answer:

37

Step-by-step explanation:

f(x)=2x²−x+9

f(4)= 2(4)²-4+9

= 32-4+9

= 37

thx for School Practice & Problem Solving
Assignment is past due (OS/
1.2.PS.17
Question Help
n
Challenge you are given the numbers, 39+n, 3 vn+144. Find the smallest value of n so that
all of the numbers in the set are natural numbers.
The smallest value of n that makes all of the numbers in set natural numbers is
를
va
Enter your answer in the answer box and then click Check Answer.
All parts showing
Clear All
CE

Answers

9514 1404 393

Answer:

  n = 25

Step-by-step explanation:

The smallest perfect square larger than 144 = 12² is 169 = 13². As it happens, the difference of these squares is 25, a number divisible by 5.

So n=25 will make all of the expressions have values that are natural numbers.

_____

n = 0 would make all of them integers, but 0/5 = 0 is not a natural number.

If f(x)=3x-2 and g(x)=2x+1, find (f-g)(x)

A. 5x-3

B. 5x-1

C. X-3

D. 3-x

I need step by step explanation please

Answers

Answer:

B

Step-by-step explanation:

3x - 2 + 2x + 1

5x - 1

Please help! I’ll give brainliest to whoever answers also! Thank you!

Answers

Answer:

450 football

liked 625

didnt like 175

sorry if i didnt explain it right didnt understand how the stated the quetion

Needing some help for my online class thanks

Answers

Answer:

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

Step-by-step explanation:

Know that: [tex]y=mx+b[/tex]

Starting for (0,0) count how many times you go up to the marked line (which is 2)

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

The [+] 2 is where you would start off at on the graph, with 1/2 being the slope go up one and over two.

Use the number line below, where RS = 4y + 2, ST = 3y + 7, and RT = 44.
a. What is the value of y?
b. Find RS and ST.

Answers

Answer:

Y = 5

Step-by-step explanation:

RT = RS + ST

44 = 4y + 2 + 3y + 7

44 -2 -7 = 7y

35 = 7y

y = 5

Which of the below measures of central tendency is/are always unique ?

Answers

Answer:

A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data




Select two ratios that are equivalent to 27: 9.
Choose 2 answers:

Answers

Answer:

1. 9:3

2. 3:1

Step-by-step explanation:

Hope it really helps you

Can someone help (Geometry)

Answers

Answer:

∠DAC is 35°

Step-by-step explanation:

Given:

Measure of ∠DAB = 64°

Measure of ∠CAB = 29°

Solution:

∠DAB shows the value of the overall angle.

∠CAB shows the value for almost half of the angle.

∠DAB - ∠CAB = ∠DAC

64° - 29° = ?

∴ 64° - 29° = 35°

Hence, the value of ∠DAC is 35°

What is m∠A? help haha

Answers

I’m just going to explain how I got my answer because it might help you understand for any future problems you have like this!!

So in this case, AEB is a mirrored dilation, or for easier terms, smaller twin, of CED, so if AEB was enlarged to the same size as CED, all the angle sizes would be the same, so we have to find the dilation factor of AEB. The dilation factor is basically just how many times smaller AEB is than CED. To do this, we’re going to take a similar angle measurement from both and divide them. So, angle ABE, and angle EDC would be the same angle, so we’re going to take those measurements, so 35 divided by 18 to get 1.94. That means 1.94 would be our dilation factor. In order to find angle a, we’re going to take it’s matching angle measurement on the opposite figure, which would be angle ECD and divide that by 1.94, so 43/1.94 which would give you around 22. The actual answer was like 22.164, but I would just round to 22!! Your final answer would be A= 22 degrees!! Apologies if this is wrong, I tried my best!!

What is the coefficients and Constants for 5x-10

Answers

Answer:

coefficient

5

constant

-10

Step-by-step explanation:

5x-10

The coefficient is the number in front of the variable

5

The constant is the number alone

-10

the perimeter of a rectangle if the width is w centimeters and the length is 3 cm more than twice the width

Answers

L being the length, W being the width.

So:

if the Length is 8cm more than twice the width, we have:

2W+8

so it's:

perimeter of a rectange = 2(2W+8)+2W

You asked me not to simplify it, so that should be your answer.

Please Help Please !!!!!!!

Answers

Answer:

I wish I could but I think its c

It’s B! I would tell you how I got the answer but I can tell your in a rush

solve this equation by using the look inside method to rewrite the problem

-81 = 3(5 - 4r)

Answers

－81＝3(5－4r)
27＝－(5－4r)
27＝－5＋4r
－4r＝－5－27
－4r＝－32
r＝8

Hope my answer helped u :)

are All integers are real numbers.

Answers

Answer:

no

Step-by-step explanation:

all integers are not real numbers.integers are negative and positive numbers. but real numbers don't include negative numbers.

Josefina's check at Sun Bistro is $26.70. In order to leave a 24% tip, how much should she pay? Round to the nearest cent.

Answers

Answer:

33.11 hope this helps

Step-by-step explanation:

she needs to pay $33.108 In order to leave a 24 percent tip.

What is ratio?

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given, Josefina's check at Sun Bistro is $26.70. she wants to leave a 24% tip

Bill of josefina = 26.70

Bill after 24% tip = 26.70 * (1 + 24%)

Bill after 24% tip = 26.70 * 1.24

Bill after 24% tip = 33.108

Therefore, In order to leave a 24% tip she needs to pay $33.108.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ2

Which equation matches the line shown on the graph below?

Answers

ANSWER: A

count rise/run. the 0 goes 2 up and 3 over to the next point making that your slope
The equation that matches the line shown on the graph is a
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