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3 years ago

PLZZ help 40pts

Mathematics

2 answers:

77julia77 [94]3 years ago

7 0

Answer:

At noon the temperature outside of Hector's home was 4 degree warmer than the temperature outside of gale's home.

Step-by-step explanation:

lyudmila [28]3 years ago

6 0

Answer: At noon the temperature outside of Hector's home was 4 degree warmer than the temperature outside of gale's home.

Step-by-step explanation:

Here, x represents the number of hours after noon while g(x) and f(x) represents the temperature of gale's and hector's home respectively in x hours.

Since, at noon, x = 0

And, by the table g(x=0) = -1

That is, the temperature of gale's home is -1° F at noon.

And, by the given graph, f(x=0) = 3

That is, the the temperature of hector's home is 3° F at noon.

And, f(0)-g(0) = 3-(-1) = 4°F

That is, the difference between the temperature of hector's home at noon and the temperature of gale's home at noon is 4°F.

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The graph of a quadratic function has a vertex located at (7,-3) and passes through points (5,5) and (9,5). Which equation best

Serga [27]

Answer:

B) $f(x)=2(x-7)^2-3$ .

Step-by-step explanation:

The vertex form of the equation is given by $f(x)=a(x-h)^2+k$ .

We plug in the vertex to obtain:

$f(x)=a(x-7)^2-3$ .

Since the graph passes through (5,5) and (9,5), they must satisfy its equation.

$5=a(9-7)^2-3$ .

$5+3=4a$ .

$8=4a$

Divide both sides by 4.

$a=2$

Therefore the equation is:

$f(x)=2(x-7)^2-3$ .

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3 years ago

What is the value of y? PLEASE EXPLAIN<br> 8.5 = y/3 <------ Fraction

NISA [10]

Answer:

y=25.5

Step-by-step explanation:

To find y, you need to get it by itself. Ask yourself, what is being done to y, then to undo that, do the opposite. For example, if 3 was added to y, you would need to subtract 3 to cancel out the 3. In this case, what is being done to y? It's being divided by 3. So, you multiply by 3 to cancel that out. Whatever you do to one side of an equation, you also have to do to the other. So,

8.5= $\frac{y}{3}$ Multiply both sides by 3

3(8.5) = 3( $\frac{y}{3}$ ) multiply on the left side, and on the right side the 3s cancel out

25.5=y

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2 years ago

A dollar bill is worth _____ pennies. When written in decimal format, each penny can be written as ______ of a dollar. 100:10 10

erik [133]

Hey there! :D

A dollar bill is worth 100 pennies.

$1.00-> .01*100 <=== same thing

When written in decimal format, each penny can be written as 100:1, because there are 100 pennies in a dollar. One penny would just be one out of 100.

I hope this helps!
~kaikers

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3 years ago

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julia-pushkina [17]

Answer:

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Step-by-step explanation:

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3 years ago

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To solve this question, you would need to find the common denominator among the 2 fractions. In this case it would be

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