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torisob [31]
2 years ago
13

What is a formula to find the midpoints of this figure?

Mathematics
1 answer:
zysi [14]2 years ago
7 0
The mid-segment of a trapezoid<span> is the line that connects the midpoints of the two nonparallel sides of the trapezoid. S</span>o, I believe, using the Trapezoid Midsegment<span> Theorem you can answer the question. 

x= a+b/2
Find a, x, and y

</span>
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Consider the function f(x)=-3x^2 +7x -k. [3 Marks] a) For what values of k will the function have no zeros? b) For what values o
Anna35 [415]

Answer: a) k >4.08

b) k = 4.08

c) k<4.08

Step-by-step explanation:

Since we have given that

f(x)=-3x^2+7x-k

a) For what values of k will the function have no zeros?

It mean it has no real zeroes i.e. Discriminant < 0

As we know that

D=b^2-4ac

Here, a =-3

b = 7

c = -k

So, it becomes,

D

b) For what values of k will the function have one zero?

It means it has one real root i.e equal roots.

So, in this case, D = 0

So, it becomes,

D=b^2-4ac=0\\\\D=7^2-4\times -3\times -k=0\\\\49-12k=0\\\\49=12k\\\\k=\dfrac{49}{12}\\\\k=4.08

c) For what values of k will the function have two zeros?

It means it has two real roots.

In this case, D>0

So, it becomes,

D=7^2-4\times -3\times -k>0\\\\49-12k>0\\\\-12k>-49\\\\12k

Hence, a) k >4.08

b) k = 4.08

c) k<4.08

3 0
3 years ago
Which inequality best represents that ice cream at −5°C is cooler than ice cream at 4°C?
konstantin123 [22]
(<) this means less than 
(>) this means greater than
So since the question doesnt say anything about -4°C we can automatically cross out A and B 
They are both negative! but when you have a negative. Its going to be less than a positive 
So this means 4°C is greater than -5°C 
or in other words
D.) 4°C > -5°C
hope this helps! 
and dont forget 2 
MARK ME BRAINLIEST! 
=)
3 0
3 years ago
Read 2 more answers
Find the range of the data. .
AlekseyPX

Answer: 4

Step-by-step explanation: Range is the difference between the highest and lowest number, so since 5 is the highest and 1 is the lowest you subtract 1 from 5 to get your answer: 4.

7 0
2 years ago
Read 2 more answers
Wich function is described by the value in the table​
kolbaska11 [484]
The table isn’t shown so I cant tell
3 0
2 years ago
Anna paid $4 for renting a video game for 4 days. Which graph shows the relationship between the costs of renting a video game f
Andreas93 [3]
She paid $ 4 for renting a video game for 4 days...that means she paid $ 1 per day. 

A horizontal axis is labeled days, a vertical axis is labeled cost of rental.
(x,y)...x is gonna be ur days and y is gonna be ur cost of rental

ur equation is gonna be y = x

points are plotted (1,1) , (2,2), (3,3)

 ^^ this is the graph u use ...graph B
3 0
3 years ago
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