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3 years ago

Make up your own multiplication and division problem and solve them

Mathematics

1 answer:

Marysya12 [62]3 years ago

7 0

Step-by-step explanation:

$10.5 \div 5 = 2.1 \\$

$52.3 \times 2 = 104.6$

$82.5 \div 5 = 16.5$

$45 \times 6.5 = 292.5$

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1.Write the expression in expanded form. The subscript number can be write in

enyata [817]

Answer:

(a) Expanded form:

$((X_1 + X_1Y_1) - X_1Z_1) + ((X_2 + X_2Y_2) - X_2Z_2) + ((X_3 + X_3Y_3) - X_3Z_3) + ((X_4 + X_4Y_4) - X_4Z_4)$

(b) The value of the expression: -21

Step-by-step explanation:

Given

$\sum \limit^4_{i=1}\ ((X_i+X_iY_i) - X_iZ_i)$

Solving (a): The expanded form:

This means that we substitute the values of i from 1 to 4 in the above expression.

So, the expression becomes:

$((X_1 + X_1Y_1) - X_1Z_1) + ((X_2 + X_2Y_2) - X_2Z_2) + ((X_3 + X_3Y_3) - X_3Z_3) + ((X_4 + X_4Y_4) - X_4Z_4)$

Solving (b): The value of the expression

To do this, we simply substitute the given values of X1, X2....... in the expression.

This gives:

So, the expression becomes:

$((0 + 0*5) - 0*0) + ((1 + 1*26) - 1*-2) + ((12 + 12*-2) - 12*3) + ((-1 + -1*25) - -1*24)$

Simplify each bracket

$((0 + 0) - 0) + ((1 + 26) +2) + ((12 -24) - 36) + ((-1 -25) +24)$

$0 + 29 -48 -2$

$-21$

Hence, the result of the expression is -21

5 0

3 years ago

The formula for the area of a triangle is A=bh/2. The area of a triangle is 26 cm squared and its base is 12cm. Using algrebra,

Fed [463]

Answer:

4 and 1 / 3 cm

Step-by-step explanation:

Consider the following;

$A = 1 / 2 * Base * Height,\\26 cm^2 = 1 / 2 * ( 12 cm ) * Height$

Let us say that Height = x. If that is so, through algebra, let us solve for x;

$26 cm^2 = 1 / 2 * ( 12 cm ) * x,\\26 cm^2 = 6 cm * x,\\26 cm^2 / 6 cm = x,\\\\x = 26 cm^2 / 6 cm,\\x = 4 and 1 / 3\\\\Conclusion, Height = 4 and 1 / 3 ( cm )$

Solution ⇒ 4 and 1 / 3 cm

8 0

3 years ago

What is the answer to this question ?

Thepotemich [5.8K]

Answer: I honestly have no clue

Step-by-step explanation:

6 0

3 years ago

Find the coordinates of the midpoint, S of RT given: R(3,0) and T(2, 1).

mihalych1998 [28]

if the distance from R to S is only half then the other half is S to T. The distance between R and S is (5,2). that should give you the answer

3 0

3 years ago

Read 2 more answers

(2x^3+4x^2-3)+(6x^3+4x-4)

sukhopar [10]

Answer:

8x^3 + 4x^2 + 4x -7

Step-by-step explanation:

Add like terms.

8 0

4 years ago

Read 2 more answers