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finlep [7]
3 years ago
9

I forgot the method to solve these, and help I really appreciated. Tysm ^^

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
5 0
First divide
140 by 560
a - {a}^{2}  =  { a}^{ - 1}
{b}^{2}  - b = b
\frac{1 {a}^{ - 1} }{4b}
\frac{1}{4ab}

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Jessica needs to make a necklace for 3 of her friends, including her. she wants to use 4.5 inches of string for each necklace. s
hoa [83]

Answer:

She can make two necklaces with 10 inches. 8 more inches

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Let u be an angle in the 4th quadrant with cos u=8/9<br><br> Then sin u=
lutik1710 [3]
To solve for the last side of the triangle, use the Pythagorean Theorem:
(8)^2 + x^2 = (9)^2
x = sqrt of 17
However, this is a NEGATIVE sqrt 17 because the terminal side is in quadrant 4, meaning that this side is under the X-axis and therefore negative.
Now that you know the side opposite of u in the triangle, do opposite/hypotenuse.
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5 0
4 years ago
Does anyone know a math equation using the distributive property that equals 15
Lubov Fominskaja [6]

Answer:

3(5)=x

Explenation:

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5 0
2 years ago
Use a system of equations to solve this problem.
Grace [21]
X = amount of seeds.

y = amount of dried fruits.

we know the snack mix contains both, and we know is 10oz, thus x + y = 10, whatever ounces "x" and "y" are.

how much is it for "x" ounces if each one costs $1.5?  well is just 1.5*x or 1.5x.

how much is it for "y" ounces if each one costs $2.5?  well is just 2.5*x or 2.5x.

the mix contains 10 ounces, each of which costs $2.2 each, how much will it be then for 10 oz?  well, is just 10 * 2.2, or $22.

since the whole 10 oz snack mix costs 22 bucks, then 1.5x + 2.5y = 22.

\bf \begin{cases}&#10;x+y=10\implies \boxed{y}=10-x\\&#10;1.5x+2.5y=22\\&#10;-------------\\&#10;1.5x+2.5\left( \boxed{10-x} \right)=22&#10;\end{cases}&#10;\\\\\\&#10;1.5x+25-2.5x=22\implies -x+25=22\implies 3=x

how many ounces of dried fruit is there anyway?  well, y = 10 - x.
4 0
3 years ago
Six to the third power,
scoundrel [369]
6 to the third power would be 6x6x6 which equals 216. All you do to find the power is multiply the number by its self the amount of times it asks like 4 to the second power would be 16 and 8 to the 4 power would be 4096
4 0
3 years ago
Read 2 more answers
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