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stepladder [879]
3 years ago
7

4/15 + 7/9 what is the sum

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

54/45 = 1 1/5 - one and one fifth

Step-by-step explanation:

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Nora drew a scale drawing of the middle school. The scale she use was 1 inch: 7 feet. The gym is 17 inches in the drawing. How i
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Answer: 119

Step-by-step explanation: if it’s 1:7,

then you’d have to do 17x7

5 0
3 years ago
What equation is equivalent to 2(4x+3)-5x=1
matrenka [14]
8x+6-5x=1

3x+6=1

please vote my answer branliest. Thanks.
8 0
3 years ago
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Select all that are true.
satela [25.4K]

Answer:

1

2

6

Step-by-step explanation:

1/2 +1/2 =1

length 1/2 ×4=2

wide 1/2 ×3 =1 1/2

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4 0
3 years ago
Write a quadratic relation in the form y = ax2 + bx + c with roots 4 and - 3 and
pochemuha

Answer:

y =  2*x^2 - 2*x - 24

Step-by-step explanation:

If we have a quadratic function with roots a and b, we can write the equation for that function as:

y = f(x) = A*(x - a)*(x - b)

Where A is the leading coefficient.

In this case, we know that the roots are: 4 and -3

Then the function will be something like:

f(x) = A*(x - 4)*(x - (-3) )

f(x) = A*(x - 4)*(x + 3)

Now we need to determine the value of A.

We also know that the graph of the function passes through the point (3, -12)

This means that:

f(3) = -12

Then:

-12 = A*(3 - 4)*(3 + 3)

-12 = A*(-1)*(6)

-12 = A*(-6)

-12/-6 = A

2 = A

Then the equation is:

y = f(x) = 2*(x - 4)*(x + 3)

Now we need to write this in standard form, so we just need to expand the equation:

y = f(x) = 2*(x^2 + x*3 - x*4 - 4*3)

y = f(x) = 2*(x^2 - x - 12)

y = f(x) = 2*x^2 - 2*x - 24

Then the relation is:

y =  2*x^2 - 2*x - 24

4 0
3 years ago
The temperature in the ice rink must stay below 50° F. This morning the temperature was 68°F. The ice rink runs a cooling device
german
The answer is h > 4.
Explanation: 68- 18=50
18/4=4.5. It is asking for below 50, and it had to cool for over 4 hours, which is >. I hope this helps. Please give me Brainliest.
6 0
3 years ago
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