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3 years ago

Choose the property of addition that justifies the equation 9+2=2+9

Mathematics

1 answer:

Alenkasestr [34]3 years ago

4 0

Answer:

Communitive Property

Step-by-step explanation:

Communitive property is when you switch up numbers when you multiply and add but it's still the same.

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What is the mean of the values in in the stem-leaf-plot

BigorU [14]

A plot where each data value is split into a "leaf" (usually the last digit) and a "stem" (the other digits). The "stem" values are listed down, and the "leaf" values are listed next to them. This way the "stem" groups the scores and each "leaf" indicates a score within that group.

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3 years ago

Use the distributive property to rewrite the expression 3 (2+11)

kolbaska11 [484]

Answer:

3(2+11) = 3x2 + 3x11

Step-by-step explanation:

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3 years ago

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oee [108]

Answer:

Step-by-step explanation:

All the angles in a triangle add up to 180. Then you find the supplement of 93 so thats 87. Then you add 87 to 50 and subtract that from 180. 43

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3 years ago

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laila [671]

$f(x)=a\cdot b^x\\\\\text{a-the initial amount}\\\\\text{b-growth factor}$

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$\boxed{Answer:\ B.\ 620,\ 7.8}$

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4 years ago

f(x) = 20(1.5)x. Let your dependent variable in the function be y. Write the function that models the independent variable in te

mars1129 [50]

Answer:

$x=log_{1.5}(\frac{y}{20})$

Step-by-step explanation:

Considering the function:

$f(x) = 20\, (1.5)^x$

The independent variable is "x" and we are asked to model it in terms of the variable "y":

$f(x) = 20\, (1.5)^x\\y=20\, (1.5)^x$

Then, in order to solve for x (which resides in the exponent), we need to use the logarithm function.

Since the base of the exponent is 1.5, we need to use the logarithm base 1.5, to lower that exponent "x":

$y=20\, (1.5)^x\\\frac{y}{20} =(1.5)^x\\log_{1.5}(\frac{y}{20}) =x\\x=log_{1.5}(\frac{y}{20})$

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3 years ago