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katen-ka-za [31]
3 years ago
9

I don’t understand how to do 5

Mathematics
1 answer:
scZoUnD [109]3 years ago
5 0

Answer:

C. $25

Step-by-step explanation:

It is asking how much a flat charge for delivery is.  The question explains that the formula represents the cost for a load of bricks, including delivery charge.  

0.42b represents 42 cents per brick that gets delivered.  No matter how many bricks, (whatever value we plug in for b), there will still be the 25 added to it, so that 25 must be the delivery charge.

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Which quadrilateral below could have four different side lengths?
makvit [3.9K]

Answer:

c. trapezoid

Step-by-step explanation:

4 0
3 years ago
Theoretically, if a month is chosen 300 times,
horsena [70]

Answer:

75 times.

Step-by-step explanation:

Well there are 12 months and 3 of them start with the letter J, so theoretically, 25% of the months chosen will start with the letter J because \frac{3}{12}=\frac{1}{4}, which is 25%. 25% of 300 (or \frac{300}{4}, for those who like fractions) is 75, so theoretically, we can expect a month that starts with the letter J 75 times.

Hope this helps!

<em>P.S: </em><u><em>Please mark me as brainliest!</em></u>

6 0
3 years ago
Find the average rate of change of the function from x=1 to x=2.<br><br><br><br> f(x)=−14/x^2
Irina-Kira [14]

Answer:

The average rate of change of the function from x=1 to x=2 will be: 10.5                

Step-by-step explanation:

Given the function

f\left(x\right)=-\frac{14}{x^2}

at x₁ = 1,

f(x₁) = f(1) =  -14/(1)² = -14/1 = -14

at x₂ = 2,

f(x₂) = f(2) = -14/(2)² = -14/(4) = -3.5

Using the formula to determine the average rate of change at which the total cost increases will be:

Average rate of change = [f(x₂) - f(x₁)] / [ x₂ - x₁]

                                        = [-3.5 - (-14)] / [2 - 1]

                                        = [-3.5 + 14] / [1]

                                        = 10.5 / 1

                                        = 10.5

Therefore, the average rate of change of the function from x=1 to x=2 will be: 10.5                      

6 0
3 years ago
Please solve for x and is it complementary or supplementary
Viktor [21]
The answer is 10 x and i think complementary but i could be wrong so you may want someone else to answer that
5 0
3 years ago
How many terms will the given expression have once it is simplified?
Svetach [21]
When simplified:
8x^2-8+3x^2+6x
= 11x^2+6x-8

Therefore, the answer would be 3 terms... C.
6 0
3 years ago
Read 2 more answers
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