Evaluate if x=13.2 and y=4.3 -x-2y

Answers

Answer 1
Answer: Lets substitute for each variable, then solve:-

x = 13.2
y = 4.3

x = 13.2
-13.2 - 2y

y = 4.3
-x - 2 · 4.3

Lets solve:-

-13.2 - 2 × 4.3 
-13.2 - (2 × 4.3)
-13.2 - 8.6
-21.8

So, when x = 13.2 and y = 4.3, -x - 2y = -21.8

Hope I helped ya!! xD

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The function h(x) = 31x2 + 77x + 41 can also be written as which of the following?A. y = 31x2 + 77x + 41

B. h(x) + 41 = 31x2 + 77x

C. y = 31x2 + 77x − 41

D. y + 41 = 31x2 + 77x

Answers

Answer:

I think the answer is A. y= 31x2 + 77x + 41

Step-by-step explanation:

Final answer:

The function h(x) = 31x2 + 77x + 41 can also be written as y = 31x2 + 77x + 41, as y is often used interchangeably with f(x) or h(x) in mathematical functions. The remaining options do not accurately reformulate the original equation.

Explanation:

The function

h(x) = 31x2 + 77x + 41

can also be written as

y = 31x2 + 77x + 41

. This is because in mathematical functions, y is often used interchangeably with f(x) or h(x), representing the output or dependent variable. It's important to note that, the other options do not correctly represent the original equation. In Option B, the constant term is incorrectly added to the function on the left side; in Option C, the constant term is incorrectly subtracted; and in Option D, the constant term is incorrectly added to 'y' on the left side.

Learn more about Mathematical functions here:

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Answers

The area would be 24 in. because to find the area of a triangle you need to multiply the height by the base then divide it by 2 and you get your answer.
6*8=48
48/2=24
Hope this helps.

In the rhombus, m1 = 18x, m2 = x + y, and m3 = 30z. Find the value of the variables x, y, and z. The diagram is not drawn to scale.

Answers

None of the angles are 90 degrees. The sides of the rhombus that are across from each other are parallel. would add up to 180 degrees, When we have a rhombus, that bit of info really helps.
4X+X=180
5x=180
x=36

How many significant digits are there in the measurement 0.09584 kg?three
six
four
five

Answers

four as zeros don't count when you're figuring out significant figures

Four sisters bought a present for their father. They received a 10% discount on the original price of the gift. After the discount was taken, each sister paid $9.00. What was the original price of the gift?

Answers

Answer:

The original price of the gift was $40.

Step-by-step explanation:

Let the original price of the gift be = x

Discount of 10% on the gift and each sister paid $9 means a total of 4*9=36 dollars

We can write this information mathematically like :

x-0.10x=36

Solving for x now;

0.90x=36

x = $40

So, the original price of the gift was $40.

9 dollars represents 90% of the cost. Divide 9 by 0.90 to get the original price, 10 dollars

What is the measure of the vertex angle in the next triangle in the pattern?4 isosceles triangles in a row, each smaller than the one before. The first has base angles 89 degrees and vertex angle 2 degrees, the second has base angles 88 degrees and vertex angle 4 degrees, the third has base angles 87 degrees and vertex angle 6 degrees, and the fourth has base angles 86 degrees and vertex angle 8 degrees,

Not to scale

vertex angle =

Answers

Answer:

The measure of the vertex angle of the next isosceles triangle is 10°

Step-by-step explanation:

The given information are;

The first isosceles triangle; Base angles = 89°, vertex angle = 2°

The second isosceles triangle; Base angles = 88°, vertex angle = 4°

The third isosceles triangle; Base angles = 87°, vertex angle = 6°

The fourth isosceles triangle; Base angles = 86°, vertex angle = 8°

The vertices of the isosceles triangles form a arithmetic projection, with a common difference of 2°

Therefore, the vertex for next isosceles triangle = 8° + 2° = 10°

The base angles are derived from the sum of interior angles of a triangle which is 180°

Which gives;

2 × Base angles + Vertex angle = 180°

2 × Base angles + 10° = 180°

2 × Base angles = 180° - 10° = 170°

Base angles = 170°/2 = 85°

Base angles of the fifth isosceles triangle = 85°

From which we have;

The fifth isosceles triangle; Base angles = 85°, vertex angle = 10°

The measure of the vertex angle of the next (fifth) isosceles triangle = 10°

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