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4 years ago

Plzzzz helllllppp ppplll

Mathematics

2 answers:

yaroslaw [1]4 years ago

8 0

the answer is 50.68

solniwko [45]4 years ago

8 0

For this question you simply need to multiply 3.62 by 14 which would be $50.68 :)

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What is a quartic function with only two real zeros at x = 7 and x = 13

Fittoniya [83]

Zeros be a and b

a=7
b=13

Function

$\\ \sf\longmapsto y=x^2-(a+b)x+ab$

$\\ \sf\longmapsto y=x^2-(7+13)x+(7)(13)$

$\\ \sf\longmapsto y=x^2-20x+91$

Option B

3 0

3 years ago

Nine less than one forth of a number is 6

snow_lady [41]

Answer:

$x = 60$

Step-by-step explanation:

Step 1: Convert into an equation

Nine less than one forth of a number is 6

$1/4x - 9 = 6$

Step 2: Add 9 to both sides

$1/4x - 9 = 6$

$1/4x - 9 + 9= 6+ 9$

$1/4x = 15$

Step 3: Multiply both sides by 4

$1/4x * 4 = 15 * 4$

$x = 60$

Answer: $x = 60$

6 0

2 years ago

Which set of numbers is arranged in increasing order? A. , , , B. , , , C. , , , D. , , ,

Jet001 [13]

Answer:

its B

Step-by-step explanation:

3.14 then pi (3.14159) then 22 ÷ 7 (3.1428) then square root of 10 (3.16)

4 0

3 years ago

Read 2 more answers

Find the circumference of each circle for the given radius r or diameter d. Use pi=22/7

AlexFokin [52]

Circumference=2*pie*r
=2*22/7*21/2
so, circumference =66 cm

brainliest pls

4 0

3 years ago

Read 2 more answers

Use the echelon method to solve the following system of two equations in two unknowns. Check your answer. x+y=17 amd 9x-y=73

Komok [63]

Answer:

y = 8

x = 9

Step-by-step explanation:

given equation,

x + y = 17 ........(1)

9 x - y = 73...........(2)

writing in matrix form

A X = B

$\begin{bmatrix}1 &1 \\ 9 &-1 \end{bmatrix} \begin{bmatrix}x\\ y\end{bmatrix}=\begin{bmatrix}17\\73 \end{bmatrix}$

using augamented matrix A|B

$\begin{bmatrix}1 &1& 17\\ 9 & -1 & 73\end{bmatrix}$

using row transformation

R₂ = R₂ - 9 R₁

$\begin{bmatrix}1 &1& 17\\ 0 & -10 & -80\end{bmatrix}$

now,

$\begin{bmatrix}1 &1 \\ 0 &-10 \end{bmatrix} \begin{bmatrix}x\\ y\end{bmatrix}=\begin{bmatrix}17\\-80 \end{bmatrix}$

now

-10 y = -80

y = 8

and

x + y = 17

x = 17 -8

x =9

7 0

3 years ago