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Paha777 [63]
3 years ago
13

Multiplication of fractions can be represented in two ways: _____________ and ____________

Mathematics
1 answer:
saul85 [17]3 years ago
5 0

Answer:

Is it grouping and adding?

(This is probably wrong, sorry)

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Solve x4 – 17x2 + 16 = 0.<br> Let u =<br> Select all of the zeroes of the function. i i
Soloha48 [4]

Solve \ x^4 - 17x^2 + 16 = 0

To solve this equation , we need to write it in quadratic form

ax^2+bx+c=0

To get the equation in quadratic form we replace x^2 with u

x^2 = u

x^4 - 17x^2 + 16 = 0 can be written as

(x^2)^2 - 17x^2 + 16 = 0, Replace u for x^2

So equation becomes

u^2 - 17u + 16 = 0

Now we factor the left hand side

-16  and -1  are the two factors whose product is +16  and sum is -17

(u-16) (u-1) = 0

u -16 = 0  so u=16

u-1 =0  so u=1

WE assume u = x^2, Now we replace u with x^2

u = 16 so \ it \ becomes \ x^2 =16

Now take square root on both sides , x= +4  and x=-4

u = 1 so \ it \ becomes \ x^2 =1

Now take square root on both sides , x= +1  and x=-1

So zeros of the function are -4, -1, 1, 4


8 0
3 years ago
Read 2 more answers
8. The endpoints of ST are s(-3, 2) and t(5,8). Find the coordinates of the midpoint of ST. Then find ST. OA midpoint: (1,5); ST
Naya [18.7K]

Answer:

The mid point of ST is (1,5) and ST = 10 units

Step-by-step explanation:

It is given that,

S(-3,2) and T(5,8). We need to find the coordinates of the midpoint of ST and also ST.

Let (x,y) be the mid point of ST. Using mid-point formula we get :

(x,y)=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})

We have, x₁ = -3, x₂ = 5, y₁ = 2 and y₂ = 8

So,

(x,y)=(\dfrac{-3+5}{2},\dfrac{2+8}{2})\\\\(x,y)=(1,5)

(1,5) is the midpoint of ST.

Using distance formula to find ST as follows :

ST=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\ST=\sqrt{(5-(-3))^2+(8-2)^2} \\\\ST=10\ \text{units}

Hence, the mid point of ST is (1,5) and ST = 10 units.

7 0
3 years ago
What is the solution for this inequality? -4x ≤ 28 A. x ≥ -7 B. x ≤ 7 C. x ≤ -7 D. x ≥ 7
svetoff [14.1K]

Answer:

\boxed{Option A }

Step-by-step explanation:

=> -4x \leq 28

Dividing both sides by -4

=> x \geq 28/-4

=> x \geq -7

3 0
4 years ago
On the last test, 40% of all sudents in Mrs. Well's class got an A. How many students are in this calss if there were 28 A's on
Murljashka [212]

Answer:

70 students

Step-by-step explanation:

If 40% of all students in Mrs. Well's class got an A, and 28 students got an A, that means that 28 = 40%

To find the total number of students, we need to find 100%

40% = 28

Divide by 4

10% = 7

Multiply by 10

100% = 70

So there are 70 students in Mrs. Well's class.

Hope this helps you! :D

4 0
3 years ago
Fred earns $6.50 an hour, plus tips, as a waiter. Suppose he works 26 hours in a week. How much money must he receive in tips to
Sladkaya [172]
X > $60 This might be the answer

8 0
3 years ago
Read 2 more answers
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