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4 years ago

Help me on this question please!!!!!!!

Mathematics

1 answer:

Romashka-Z-Leto [24]4 years ago

6 0

The 3 terms are 1, -1, and -3.

Recursive= Previous - 2.

Explicit= -2n+ 13

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Solve the equation 20 + 0.44x = 19 + 1.69x.

artcher [175]

By solving the given equation 20 + 0.44x = 19 + 1.69x we get x=0.8.

<h3>What is meant by an equation?</h3>

When two expressions are connected with the equals sign (=) in a mathematical formula, it expresses the equality of the two expressions. For instance, an equation in French is described as having one or more variables, whereas in English, an equation is any properly written formula that consists of two expressions linked by the equals sign.

Determine which values of the variables result in the equality to be true in order to solve an equation with variables. The values of the variables that must fulfill the equality to constitute the answer are known as the unknowns, together with the variables for which the equation must be solved.

Given,

20 + 0.44x = 19 + 1.69x

20-19=1.69x-0.44x

1=1.25x

x=0.8

Therefore, by solving the given equation 20 + 0.44x = 19 + 1.69x we get x=0.8.

To know more about equation, visit:

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4 0

1 year ago

If ab = 8 and a^2+b^2=16, then what is the value of (a+b)^2?<br><br> DO IT QUICK PLEASE!!

Dimas [21]

Hello there!

(a + b)² = a² + 2ab + b²

= a² + b² + 2ab

= 16 + 2(8)

= 16 + 16

= 32

As always, it is my pleasure to help students like you!

4 0

3 years ago

Find the surface area of a right triangle prism with legs measuring 3 and 4 and a height of 10.

Hunter-Best [27]

Since we have a rectangle triangle, then we can find the other side of the triangle using the Pythagorean theorem.
We have then:
$L = \sqrt{3^2+4^2}$
$L = \sqrt{9+16}$
$L = \sqrt{25}$
$L = 5$
Then the surface area is given by the sum of the areas.
Triangle of the base and the top:
$A1 = (1/2) * (4) * (3)

A1 = 6$
Rectangle 1:
$A2 = (3) * (10)

A2 = 30$
Rectangle 2:
$A3 = (4) * (10)

A3 = 40$
Rectangle 3:
$A4 = (5) * (10)

A4 = 50$
Finally, the surface area is:
$A = 2A1 + A2 + A3 + A4
$
Substituting values:
$A = 2 * (6) + 30 + 40 + 50

A = 132$
Answer:
The surface area of a right triangle prism is:
B. 132

6 0

3 years ago

Which property of equality is represented?<br> 2(x + 3y) = 2(x + 3y)

shepuryov [24]

Answer:

Identical Property

Step-by-step explanation:

2.x + 2.3y2. = 2.x + 2.3y2.

6 0

3 years ago

The coffee counter charges ?"$11.00" per pound for kenyan french roast coffee and ?"$13.00" per pound for sumatra coffee. How mu

zloy xaker [14]

Answer: The answer is 13 ponds of each type should be used.

Step-by-step explanation: Given that the coffee counter charges $11.00 per pound for kenyan french roast coffee and $13.00 per pound for sumatra coffee. We are to find the quantity of each type that should be used to make a 26 pound blend that sells for $12.00 per pound.

Let 'x' pound and 'y' pound of kenyan french roast coffee and sumatra coffee be used in the mixture of 26 pound.

So, we have

$x+y=26,~~~~~~~~~~~~~~~~~~~~~~(A)\\\\11x+13y=12\times 26.~~~~~~~~~~(B)$

Multiplying equation (A) by 11 and subtracting from equation (B), we have

$13y-11y=12\times26-11\times26\\\\\Rightarrow 2y=26\\\\\Rightarrow y=13,$

and from equation (A),

$x=26-13=13.$

Thus, 13 pounds of each type of coffee should be used.

8 0

3 years ago