2 years ago

Which of the following is equal to the expression listed below? 30 + 20

Mathematics

1 answer:

Free_Kalibri [48]2 years ago

4 0

Answer:

Step-by-step explanation:

30 + 20 first you add 0 + 0 = 0 now you has 3 + 2 = 5 put them togeter 50

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Jordan writes 3(4x – 8) = 12x – 8

Ivahew [28]

Hi! What’s -8 times 3?

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2 years ago

If f(x)=x^4+3x^3-x^2+6, find f(-3).

docker41 [41]

Answer:

f(-3) = -3

Step-by-step explanation:

Step 1: f(x) means "f of x" and f(-3) means "f of -3", so you have to replace all the "x" letters in the function with the value -3.

$f(x)=x^4+3x^3-x^2+6\\f(-3)=(-3)^4+3(-3)^3-(-3)^2+6$

Step 2: Apply the exponents. <em>Make sure you remember to put in the -3 and not just 3.</em>

$f(-3)=81+3(-27)-9+6$

Step 3: Use BEDMAS rules to complete the calculation.

$f(-3)=81-81-9+6$

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Therefore the answer is f(-3) = -3.

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3 years ago

Data was collected on the average winter temperature and the number of days with snow of a random groupof cities in the United S

fiasKO [112]

Answer:

d. negative correlation

Step-by-step explanation:

Two variables are positive correlated when one goes up or down the other goes in the same direction and they are negative correlated when one goes up or down the other variable goes in the other direction.

In this case, the higher the temperature rises, the less snow. Therefore we have a negative correlation

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3 years ago

An architect makes a model of a new house. The model shows a tile patio in the backyard. In the model, each tile has a length o

amid [387]

Answer:

1:8 and 1:64

Step-by-step explanation:

(i think)

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2 years ago

The equation of a line is y = 3. write an equation in slope-intercept form of a line parallel to y = 3 that passes through (0,6)

egoroff_w [7]

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