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luda_lava [24]
2 years ago
14

Show your work and explain 100 points

Mathematics
2 answers:
jok3333 [9.3K]2 years ago
5 0

Answer:

The answer is D

Step-by-step explanation:

Pi is 3.14. Multiply that by 10, and you get 31.4. The rectangle pan is 70 inches. Hope this helps.

aleksley [76]2 years ago
3 0

Answer:

B.

Step-by-step explanation:

area of pan:

πr²

π(10)²

100π

314.16 in²

area of rectangle:

length * width

10 * 7

70 in²

greater area of pan by rectangular pan:

314.16 in² - 70 in²

244.16 in²

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Select the two values of x that are roots of this equation.<br> 2x+11x+15= 0
Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

<u><em>The correct quadratic equation is</em></u>

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

2x^{2} +11x+15=0  

so

a=2\\b=11\\c=15

substitute in the formula

x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}

x=\frac{-11(+/-)\sqrt{121-120}} {4}

x=\frac{-11(+/-)\sqrt{1}} {4}

x=\frac{-11(+/-)1} {4}

x_1=\frac{-11(+)1}{4}=-2.5

x_2=\frac{-11(-)1}{4}=-3

therefore

The roots of the equation are x=-3 and x=-2.5

5 0
3 years ago
A cake recipe calls for 1 3/4 cups of flour. If Gloria is planning on making 7 cakes for a bake sale, how many cups of flour wil
Gwar [14]
1 3/4 x 7 = 12 1/4 Hope this help.
3 0
3 years ago
Evaluate the functions​
Anna11 [10]

Answer:

(btw the first question answer is -4, not 0)

10

Step-by-step explanation:

(btw the first question answer is -4, not 0)

So to solve the 2nd equation you substitute t with 30

so 30-2/3*30

30-20=10

6 0
2 years ago
Determine which of the following equations, when graphed, intersect at the point (4, 0). Select all that apply. x - y = 4 -x - y
Elza [17]

Answer: only (x-y=4) and (x+y=4).


Step-by-step explanation:

Notice target point has y=0, so all terms with y are zero. Then all 6 equations reduce to m x = k, for various m and k. So calculate 4×m and compare to k six times.


x - y = 4 4=4 yes

-x - y = 4 -4=4 no

2x - y = 7 8=7 no

x + y = 4 4=4 yes

2x + y = 7 8=7 no

2x + y = -7 8=-7 no.

6 0
3 years ago
Read 2 more answers
Pherris is graphing the function f(x) = 2(3)x. He begins with the point (1, 6). Which could be the next point on his graph?
Maurinko [17]

the next point would be (2,18)

4 0
3 years ago
Read 2 more answers
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