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3 years ago

(pages 2-7)

Mathematics

1 answer:

user100 [1]3 years ago

7 0

Answer:

The answer is here

Step-by-step explanation:

https://www.khanacademy.org/test-prep/praxis-math/praxis-math-lessons/gtp--praxis-math--lessons--geometry/a/gtp--praxis-math--article--congruence-and-similarity--lesson

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Helpppp it's due by midnight

Helga [31]

Answer:

The constant of proportionality is 7

Step-by-step explanation:

The equation for a direct relation is

y = kx where k is the constant of proportionality

y = 7x where k=7

5 0

3 years ago

Read 2 more answers

-15+22=m- 8 thanks for the help

givi [52]

The answer is ( m=15 )

6 0

3 years ago

Please Simplify these expressions:

weeeeeb [17]

Answer:

1) 2a+4a+10-6= 6a + 4

2) 3x-5x+7-7= -2x

3) - 15b+10 +10b= -5b + 10

4) - 4d+d-8-6+3b= - 3d - 14 +3b

3 0

3 years ago

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Find the minimum value if f(x) = xe^x over [-2,0]

SashulF [63]

Given function:

$f(x)=xe^x$

The minimum value of the function can be found by setting the first derivative of the function to zero.

$f^{\prime}(x)=xe^x+e^x$ $\begin{gathered} xe^x+e^x\text{ = 0} \\ e^x(x\text{ + 1) = 0} \end{gathered}$

Solving for x:

$\begin{gathered} x\text{ + 1 = 0} \\ x\text{ = -1} \end{gathered}$ $\begin{gathered} e^x\text{ = 0} \\ \text{Does not exist} \end{gathered}$

Substituting the value of x into the original function:

$\begin{gathered} f(x=1)=-1\times e^{^{-1}}_{} \\ =\text{ -}0.368 \end{gathered}$

Hence, the minimum value in the given range is (-1, -0.368)

6 0

1 year ago

Ali's dog weighs 8 times as much as her cat together the two pets weigh 54 lb how much does Ali's dog weigh

RideAnS [48]

Answer:

Step-by-step explanation:

Cat = x

Dog = 8x

x + 8x = 54

9x = 54

x = 6, Dog = 8 * 6 = 48

7 0

3 years ago