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ANSWER:

✿ Which of these EXPRESSION is equivalent to 3*(20+7) ?

☑️ 3*20+7

✯ 3*20*7

✯ 3+20+7

✯ 3*20+3*7

✓ option ( a ) ✓

hope this much helps UH ❣️

Step-by-step explanation:

20 CM is ANSWER

PLZ MARK as BRAINLIEST plz

Answer:

90/105

Step-by-step explanation:

3/5 × 30/21

we will MULTIPLY the reciprocal

90/105

Answer:

2x+2y is the CORRECT answer

Step-by-step EXPLANATION:

. ......................... you can SOLVE it

Step-by-step EXPLANATION:

LET no be x

3/4 of 1/5 of x

3/4 × 1/5 ×x = 70

x= 70×4×5/3 =466.67

Answer:

ap so bump seeds STL DP JA all jaw shop FARM is dp OZ all

Answer:

9×1 = 9

9× 2 = 18

9×3=27

9×4= 36

9×5= 45

9×6= 54

9×7 = 63

9×8= 72

9×9= 81

9×10= 90

To CONVERT m/s FORMULA = 5/18

54 × 5/18 = 15

So 15m/s

............. : )

Answer:

8/1251

Step-by-step EXPLANATION:

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ANSWER: 3015 is the answer

Step-by-step EXPLANATION:

ANSWER is 1228.8.

Mark me as BRAINLIEST

ANSWER:

पूर्ण प्रश्न अपलोड करा..

Step-by-step EXPLANATION:

ANSWER:

I'm not ABLE to UNDERSTAND your HANDWRITING

Answer:

83+4+84_-_83-384-5+958549_+:8:+'+_;_8_+484;4958-74:48495!4

ANSWER:

vjnjvvhmjjvcccvbhkhcgjk

ANSWER:

sorry

i

don't

know

Step-by-step EXPLANATION:

An OBTUSE ANGLE has a measurement GREATER than 90 degrees but less than 180 degrees. However, A REFLEX angle measures more than 180 degrees but less than 360 degrees.

ANSWER: 180

Step-by-step explanation:

Tan^-1(1)  +  tan^-1 (2) + tan^-1(3)​

Tan^-1(1)  = 45     tan^-1 (2) = 63.43    tan^-1(3) = 71.56

=180.3

to the NEAREST 1DP = 180

ANSWER:

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ANSWER:

HOPE this MUCH HELPS UH ❣️

Step-by-step explanation:

the cost of 2 suit length = 2912

the cost of 1 suit length =2912/2

the cost of 5 suit length =2912/2 × 5

= 1456 × 5

= 7280 Rs.

if you like my solution then mark as BRAINLIEST and subscribe my channel pankaj chouhan and

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Step-by-step explanation:

1. INSERT the MISSING NUMBER. 12,25,49,99,197,395,_12,25,49,99,197,395,_A. 789789B. 812812C. 15791579D. 722722

View Answer

Discuss2. Insert the missing number. 34,7,37,14,40,28,43,_34,7,37,14,40,28,43,_A. 4242B. 5656C. 3131D. 4646

View Answer

Discuss3. FIND the missing number. 1,4,9,16,25,36,49,_1,4,9,16,25,36,49,_A. 6464B. 8181C. 5454D. 5656

View Answer

Discuss4. Insert the missing number. 2,7,10,22,18,37,26,_2,7,10,22,18,37,26,_A. 5252B. 4242C. 6262D. 4646

View Answer

Discuss5. Find the missing number. 4,12,48,240,1440,_4,12,48,240,1440,_A. 1002010020B. 1008010080C. 76207620D. 62006200

Answer:

9×1=9

9×2=18

9×3=27

9×4=36

9×5=45

9×6=54

9×7=63

9×8=72

9×9=81

9×10=90

Step-by-step explanation:

9×8=72 or 8×9 =72

ANSWER:

prove AC = BD, OA = OC, OB = OD, and ∠AOB = 90º. HENCE, the diagonals of a square are equal in LENGTH. Hence, the diagonals of a square bisect each other. Hence, the diagonals of a square bisect each other at right angles.

Answer:

31 is your answer

Step-by-step EXPLANATION:

PLS MARK HAS BRAINLIST

Answer:

the area of square plot is GREATER by 2025cm^2

Step-by-step explanation:

HOPE this answer helps

Answer:

1) L.H.S = 3k-10 ; R.H.S. = 2

2)L.H.S = 3p-49 ; R.H.S = 19

hope this HELPS you !!!

Step-by-step explanation:

Introduction

We have already come across simple algebraic expressions like x + 3, y – 5, 4x + 5, 10y – 5 and so on. In Class VI, we have seen how these expressions are useful in formulating puzzles and problems. We have also seen examples of several expressions in the chapter on simple equations.

Expressions are a central concept in algebra. This Chapter is devoted to algebraic expressions. When you have STUDIED this Chapter, you will know how algebraic expressions are formed, how they can be combined, how we can find their values and how they can be used

How are expressions formed?

We now know very well what a variable is. We use letters x, y, l, m, ... etc. to denote variables. A variable can take various values. Its value is not fixed. On the other hand, a constant has a fixed value. Examples of constants are: 4, 100, –17, etc.

We combine variables and constants to make algebraic expressions. For this, we use the operations of addition, subtraction, multiplication and division. We have already come across expressions like 4x + 5, 10y – 20. The expression 4x + 5 is obtained from the variable x, first by multiplying x by the constant 4 and then adding the constant 5 to the product. Similarly, 10y – 20 is obtained by first multiplying y by 10 and then subtracting 20 from the product.

The above expressions were obtained by combining variables with constants. We can also obtain expressions by combining variables with themselves or with other variables. Look at how the following expressions are obtained:

x2, 2y2, 3x2 – 5, xy, 4xy + 7

(i) The expression x2 is obtained by multiplying the variable x by itself;

x × x = x2

Just as 4 × 4 is written as 42, we write x × x = x2. It is commonly read as x SQUARED.

(Later, when you study the chapter ‘Exponents and Powers’ you will realise that x2

may also be read as x raised to the power 2).

In the same manner, we can write x × x × x = x3

Commonly, x3 is read as ‘x cubed’. Later, you will realise that x3 may also be read

as x raised to the power 3.

x, x2, x3, ... are all algebraic expressions obtained from x.

(ii) The expression 2y2 is obtained from y: 2y2 = 2 × y × y

Here by multiplying y with y we obtain y2 and then we multiply y2 by the constant 2.

(iii) In (3x2 – 5) we first obtain x2, and multiply it by 3 to get 3x2. From 3x2, we subtract 5 to finally arrive at 3x2 – 5.

(iv) In xy, we multiply the variable x with another variable y. Thus, x × y = xy.

(v) In 4xy + 7, we first obtain xy, multiply it by 4 to get 4xy and add 7 to 4xy to get the expression.

TERMS of an expression

We shall now put in a systematic form what we have learnt above about how expressions are formed. For this purpose, we need to understand what terms of an expression and their factors are.

Consider the expression (4x + 5). In forming this expression, we first formed 4x separately as a product of 4 and x and then added 5 to it. Similarly consider the expression (3x2 + 7y). Here we first formed 3x2 separately as a product of 3, x and x. We then formed 7y separately as a product of 7 and y. Having formed 3x2 and 7y separately, we added them to get the expression.

You will find that the expressions we deal with can always be seen this way. They have parts which are formed separately and then added. Such parts of an expression which are formed separately first and then added are known as terms. Look at the expression (4x2 – 3xy). We say that it has two terms, 4x2 and –3xy. The term 4x2 is a product of 4, x and x, and the term (–3xy) is a product of (–3), x and y.

Terms are added to form expressions. Just as the terms 4x and 5 are added to form the expression (4x + 5), the terms 4x2 and (–3xy) are added to give the expression (4x2 – 3xy). This is because 4x2 + (–3xy) = 4x2 – 3xy.

Factors of a term

We saw above that the expression (4x2 – 3xy) consists of two terms 4x2 and –3xy. The term 4x2 is a product of 4, x and x; we say that 4, x and x are the factors of the term 4x2. A term is a product of its factors. The term –3xy is a product of the factors –3, x and y.

We can represent the terms and factors of the terms of an expression conveniently and elegantly by a tree diagram. The tree for the expression (4x2 – 3xy) is as shown in the adjacent figure.

The factors are such that they cannot be further factorised. Thus we do not write 5xy as 5 × xy, because xy can be further factorised. Similarly, if x3 were a term, it would be written as x × x × x and not x2 × x. Also, remember that 1 is not TAKEN as a separate factor

1. 0.58 = 5/10 + 8/100
2. 0.909 = 9/10 + (0/100) +9/1000

ANSWER:

give figure PLEASE

Step-by-step explanation:

please mark my answer as BRAINLIST answer please

ANSWER:

it's true

mark my ANS as BRAINLIEST if my ans HELPED u

follow me

ANSWER:

B is the CORRECT answer

thank you.....

Answer:

HI here is your answer okay make me as brainalist

Step-by-step explanation:

The area of a TRIANGLE is given by (1/2)*BASE*height. If the LENGTH of the sides becomes double so does the height. As base and height are becoming double the new area is 4 times the ORIGINAL area. When the length of the sides of a triangle double, the area becomes quadruple.

ANSWER:

what is the PERIMETER of TRIANGLE

ANSWER:

both are the same

Step-by-step explanation:

3*3*3*3=81 or 9*9=81

Answer:

71/4 x7/58x111/21=11.2464.

ANSWER:

615,620,625,630

Step-by-step EXPLANATION:

i HOPE my answer is HELPFUL

Answer:

Step-by-step explanation:

FIRST we find the slope of the line 2x−3y+8=0 by PLACING it into slope intercept form:

2x−3y+8=0

⇒−3y=−2x−8

⇒3y=2x+8

⇒y=

3

2

​

x+

3

8

​

Therefore, the slope of the line is m=

3

2

​

.

Now SINCE the equation of the line with slope m passing through a POINT (x

1

​

,y

1

​

) is

y−y

1

​

=m(x−x

1

​

)

Here the point is (2,3) and slope is m=

3

2

​

, therefore, the equation of the line is:

y−3=

3

2

​

(x−2)

⇒3(y−3)=2(x−2)

⇒3y−9=2x−4

⇒2x−3y=−9+4

⇒2x−3y=−5

Hence, the equation of the line is 2x−3y=−5.

Answer:

1( B)

2( b)

I KNOW this MUCH only

Step-by-step explanation:

0.8x120 +5x+2/5 =16

96+5x+2/5=16

5x= 16-96-2/5=-80-2/5 = -402/5

X= -402/25=-16.08

Step-by-step explanation:

LET cost of pencil be Rs. x

Cost of pens be Rs. y

5 pencils and 7 pens together cost Rs. 50,

So we get

5x+7y=50

Subtract 7y both side we get

5x=50–7y

Divide by 5 we get

x=10−

5

7

y

Plug value of y which is FACTOR of 5 to get WHOLE number so plug y=5,10,15 we get

fory=5

x=10−

5

7

y=10−7=3

for y=10

x=10−

5

7

y=10−14=−4

fory=15

x=10−

5

7

y=10−21=−11

Therefore, the REQUIRED points are (3,5),(−4,10),(−11,15).

Given that 7 pencils and 5 pens together cost Rs. 46

7x+5y=46

Subtract 7x both side we get

5y=46–7x

Divide by 5 we get

y=9.2–1.4x

Plug x=0,2,4 we get

for x=0

y=9.2–0=9.2

for x=2

y=9.2–2.8=6.4

forx=4

y=9.2–5.6=3.6

Therefore, the required points are (0,9.2),(2,6.4),(4,3.6).

The graph is as SHOWN below:

Since the point of intersection is (3,5),

Hence, the cost of one pencil is Rs. 3 and the cost of one pen is Rs. 5

Step-by-step EXPLANATION:

THIRTEEN POINT SEVEN EIGHT

ANSWER:

...........................

ANSWER:

answer for this QUESTION is 0.95

Step-by-step explanation:

Required Answer:-

We have to say that the given ASSERTION and REASON are correct or not and REASON is explaining the ASSERTION.

ASSERTION:

"SALMONELLA typi BACTERIA spreads cholera."

Cholera is a water borne disease caused by Vibrio cholerae but here it is given Salmonella typhi which is the causative ORGANISM of typhoid. Hence the Assertion is incorrect.

REASON:

"HOUSEFLIES spread it from faeces to food and water."

Houseflies are one of the popular vectors known for carrying different types of pathogens or MICROBES causing diseases. It spreads the cholera bacteria as well from faeces to food and water that we consume. Hence, the Reason is correct..

THEN:

The Assertion is false/incorrect, but the reason is correct/True. Most propably, it should be Option 3(C).

ANSWER:

6000+700+80+9+1/10+2/100+3/1000

Step-by-step explanation:

6789.123= 6000+700+80+9+1/10+ 2/100+3/1000

ANSWER:

In 5 YEARS 5000will DOUBLE itself at 20%

ANSWER:

its COMPLEMENTARY ANGLE is 9°

Step-by-step explanation:

workers and days are INVERSELY proportional.

so FORMULA is

M1*D1=M2*D2

36×20=64×D2

D2 = 36×20/64=10 days