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4 years ago

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Five years ago, Jason was three times the age of his sister, Marquecia. A) M = 3J + 5 B) J = 3M + 5 C) J = 3(M - 5) D) J - 5 = 3

(M - 5)

1 answer:

vova2212 [387]4 years ago

4 0

Answer:D

Step-by-step explanation:

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2. What is the product of 4 2/3 and 11 1/4?

Lerok [7]

$4 \frac{3}{4} ~*~ 11\frac{1}{4} = \frac{14}{3} ~*~ \frac{45}{4} = \frac{630}{12}=52 \frac{6}{12} =[52 \frac{1}{2} ]$

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4 years ago

Matherson made a wooden triangular pencil holder with an opening at the top. It has a height of 5 inches with the base being an

qwelly [4]

Answer:

Step-by-step explanation:

2.5 surface area

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3 years ago

What is the solution set of the equation using the quadratic formula?

oee [108]

(1)

we are given

$x^2+6x+10=0$

we can use quadratic formula

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

now, we can compare and find a , b and c

we get

$a=1,b=6,c=10$

now, we can plug these values into quadratic formula

$x=\frac{-6\pm \sqrt{6^2-4(1)(10)}}{2(1)}$

$x=\frac{-6+\sqrt{6^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}$

we can simplify it

$x=-3+i$

$x=\frac{-6-\sqrt{6^2-4\cdot \:1\cdot \:10}}{2\cdot \:1}$

$x=-3-i$

so, we will get solution

{−3+i, −3−i}.........Answer

(2)

we are given equation as

$x^2-8x+14=0$

Since, Jamal solve this equation by completing square

so, firstly we will move constant term on right side

so, subtract both sides by 14

$x^2-8x+14-14=0-14$

$x^2-8x=-14$

we can write

$-8x=-2\times 4\times x$

so, we will add both sides by 4^2

$x^2-8x+4^2=-14+4^2$

we get

$x^2-8x+16=-14+16$ ..............Answer

4 0

3 years ago

Is it true that any fraction is in its simplest form if and only if the only common factor of the numerator and denominator is 1

fomenos

Answer:

Yes

Step-by-step explanation:

When the greatest common factor of two numbers is 1 or -1, the numbers are known as relatively prime. This means there are no numbers that can be factored out of both of the numbers, meaning if the numerator and denominator are relatively prime, they can not be simplified any further.

8 0

3 years ago

The area of a soccer field at 7700 yd.². The width of the field is 70 yards. What is the perimeter of the field?

mario62 [17]

Since you know the area and the width, you can divide the area by the width to find the length. This gives you a length of 110 yards. To find the perimeter of the soccer field, you would add all the side lengths together. Since the width is 70, you would add 70 + 70, along with the length, 110 + 110. This gives you a perimeter of 360.

3 0

3 years ago