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velikii [3]
4 years ago
7

(5x^2+20x) ÷(x+4) divide, it's really important, I thank you for the people who help me in this :)

Mathematics
1 answer:
Sergio [31]4 years ago
3 0

Answer:

5x

Step-by-step explanation:

Given expression: \frac{5x^2+20x}{x+4}

Take the common number 5 outside in the numerator.

\frac{5x^2+20x}{x+4}=\frac{5(x^2+4x)}{x+4}

Now, take x common in both the terms in numerator.

\frac{5(x^2+4x)}{x+4}=\frac{5x(x+4)}{x+4}

Cancel out the common factor in the both numerator and denominator.

\frac{5x(x+4)}{x+4}=5x

Hence, the answer is 5x.

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On a coordinate plane, a triangle is reflected across y = negative 2.
AleksandrR [38]

Answer:

The answer will be D.y=-2

Step-by-step explanation:

The reflection line is the fixed line that a shape or figure is reflected across of. The problem tells you that the triangle is reflected across y=-2

5 0
3 years ago
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YES I Am GIVING A BRAINLIST pls be accurate
CaHeK987 [17]

Answer:

y = 5x +4

Step-by-step explanation:

x has to equal 1

y = 5(1) +4 = 9

8 0
3 years ago
What are the zeros of the function below?
Ivan
When you want to find zeros of rational expression you need to find at which points numerator is equal to zero. In this case, we have the product of three expressions.
x(x-1)(x+11)=0
A product is equal to zero whenever one of the factors is equal to zero. 
That means that zeros of our functions are:
1)x=0
2)x-1=0
x=1
3)x+11=0
x=-11
The final answer is a. Function has zeros at (0, 1, -11).

3 0
3 years ago
A study was designed to compare the attitudes of two groups of nursing students towards computers. Group 1 had previously taken
trasher [3.6K]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Group 1:

μ1 = 59.7

s1 = 2.8

n1 = sample size = 12

Group 2:

μ2 = 64.7

s2 = 8.3

n2 = sample size = 15

α = 0.1

Assume normal distribution and equ sample variance

A.)

Null and alternative hypothesis

Null : μ1 = μ2

Alternative : μ1 < μ2

B.)

USing the t test

Test statistic :

t = (m1 - m2) / S(√1/n1 + 1/n2)

S = √(((n1 - 1)s²1 + (n2 - 1)s²2) / (n1 + n2 - 2))

S = √(((12 - 1)2.8^2 + (15 - 1)8.3^2) / (12 + 15 - 2))

S = 6.4829005

t = (59.7 - 64.7) / 6.4829005(√1/12 + 1/15)

t = - 5 / 2.5108165

tstat = −1.991384

Decision rule :

If tstat < - tα, (n1+n2-2) ; reject the Null

tstat < t0.1,25

From t table :

-t0.1, 25 = - 1.3163

tstat = - 1.9913

-1.9913 < - 1.3163 ; Hence reject the Null

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=6%20%5Ctimes%20x%20%3D%20%20-%2024" id="TexFormula1" title="6 \times x = - 24" alt="6 \times
Finger [1]
The missing number is 4
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4 years ago
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