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3 years ago

What is the value of Fraction 1 over 2x3 + 3.4y when x = 4 and y = 2?

Mathematics

2 answers:

Maru [420]3 years ago

6 0

25.8 because y = 2 so yeaaaa

vodka [1.7K]3 years ago

5 0

Answer:

The guy that answered above is correct I think. I'm on the test right now so I will comment when I know if it is or isn't but if you cannot see the answer the person above me shows, it's 25.8

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SUPER EASY WILL GIVE BRAINLEIST IF DONE BEFORE 10 PM PLS HURRY. IF U HAVE TIME PLS HELP ME ON OTHER QUESTIONS THANK YOU <3

neonofarm [45]

Answer:

4. 17

5. 28

Step-by-step explanation:

4. This shape can be broken up into a square and two identical triangles.

The area of a square is A=S*S

The side length of the square is 3

So the area of the square is:

A = 3 * 3

A = 9

The area of the triangle is A=(1/2)B*H

The height is 4 and the base is 2

So the area of the triangle is:

A =(1/2) * 2 * 4

A= 4

To get the total area we add the values. Since there are two triangles, we will add the triangle area twice.

So the total area is

A = 9 + 4 + 4

A = 17

The area is 17.

5. We can split the shape into two triangles and calculate the area like that.

Remember the area of a rectangle is

A = L*W

Area of the first triangle is

A = 4 * 5

A = 20

The area of the second triangle is

A = 4 * 2

A = 8

So the total area is 28

I dont feel like doing the rest of the problems, but the process is similar.

7 0

4 years ago

Y squared plus 7y plus 10 over y squared minus 25

klasskru [66]

Y²+7y+10/y²-25 this is the equation now if your looking for the answer it would be

y^4+7y^3-25y^2-175y+10
_________________________
(y+5)(y-5)

sorry if is a little messy

5 0

3 years ago

If i = −1 and a and b are non-zero real numbers, what is 1a+bi ?

MariettaO [177]

The i you normally think of (the one = to sqrt(-1) is not the same i they are using here. They are using this i the same way you would use x = - 1 in any normal equation or relation.

1a + b(-1)
a - b is your answer <<<< answer

6 0

3 years ago

The scale of a map is 1in:15miles. How many miles is it from Philadelphia, Pa to Boston, Ma if they are 20.4 inches apart on the

cupoosta [38]

Answer:

if 1in=15miles

then20.4in=? miles

1in by ? miles and 20.4in by 15miles

1in ? miles= 306in miles

divide both sides by 1in

? miles= 306 miles

therefore 20.4in = 306miles

4 0

2 years ago

What is the average miles per gallon (mpg) for all new hybrid small cars? Using Consumer Reports, a random sample of such vehicl

koban [17]

Answer:

a. The Variable is new hybrid small cars miles per galon.

b. The variable is quantiative.

c. All new hybrid small cars

Step-by-step explanation:

a. When we are analizing the variables, we need to see what is the most important factor in this variable. Here we are looking at miles per galon. But the question is specific about new hybrid small cars. So we define the variable as new hybrid small cars miles per galon

b. A qualitative variable is a variable that can't be expressed in numbers. For example when we talk about the colour of a car, that's a qualitative variable. In this problem, we are looking at the consumption of the engine. It's a given number. When we can define measure it with numbers it's a quantitative variable. Therefore this is a quantitative variable

c. The implied population is all the subjects where we are measuring our variable. In here, we are looking at a random sample of all the new hybrid small cars. Since we took a random sample, the idea is that it represents the whole population since we can't measure the consumption on all the new hybrid small cars. Therefore the implied population is all new hybrid small cars

7 0

4 years ago