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emmainna [20.7K]
3 years ago
10

Find solutions of -x^2+y^2=75

Mathematics
1 answer:
Citrus2011 [14]3 years ago
7 0

Answer:yea yea

Step-by-step explanation:

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the national flag of scotland has a white diagonal on a blue backround Tracy is sewing a scottish flag she knows that the length
dybincka [34]

Answer:

12 feet

Step-by-step explanation:

By Pythagoras theorem, a²+b²=c², where c represents the diagonal and a and b represents the other sides of a right angled triangle

As a flag is a rectangle, the two triangles cut would be  right angled triangles

Therefore, a²+9²=15²

a²+81=225

a²=144

a=√144

a=12 feet

7 0
3 years ago
The graph of the function C(x) = −0.34x2 + 12x + 62 is shown. The function models the production cost, C, in thousands of dollar
Virty [35]

Answer:

0 ≤ x < 1.12 and 34.18 < x ≤ 39.87

Step-by-step explanation:

Let

x ----> is the number of tires produced, in thousands

C(x) --->  the production cost, in thousands of dollars

we have

C(x)=-0.34x^{2} +12x+62

This is a vertical parabola open downward (the leading coefficient is negative)

The vertex represent a maximum

The graph in the attached figure

we know that

Looking at the graph

For the interval [0,1.12) -----> 0\leq x

The value of C(x) ----> C(x) < 75

That means ----> The production cost is under $75,000

For the interval (34.18,39.87] -----> 34.18 < x\leq 39.87

The value of C(x) ----> C(x) < 75

That means ----> The production cost is under $75,000

Remember that the variable x (number of tires) cannot be a negative number

therefore

If the company wants to keep its production costs under $75,000 a reasonable domain for the constraint x is

0 ≤ x < 1.12 and 34.18 < x ≤ 39.87

7 0
3 years ago
2x^2 -7= 74 please show all work
skad [1K]
2x^2-7=74\\&#10;2x^2=81\\&#10;x^2=\dfrac{81}{2}\\&#10;x=-\sqrt{\dfrac{81}{2}} \vee x=\sqrt{\dfrac{81}{2}}\\&#10;x=-\dfrac{9}{\sqrt2} \vee x=\dfrac{9}{\sqrt2}}\\&#10;x=-\dfrac{9\sqrt2}{2} \vee x=\dfrac{9\sqrt2}{2}}\\
8 0
3 years ago
Find the surface area of the attached figure
erastova [34]

Answer:

1477.033\\

Step-by-step explanation:

4 0
3 years ago
What is 125% of 332?
bagirrra123 [75]

Answer:

W = 415

Step-by-step explanation:

Is means equals and of means multiply

W = 125% * 332

Change to decimal form

W = 1.25 *332

W = 415

7 0
3 years ago
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