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Aleonysh [2.5K]
3 years ago
5

Someone plz help me

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0
This is a parabola which looks like an inverted U. Its will have a maximum value  when t = 7  as we see from  the vertex form below:-

- t^2 + 14t - 40 
= - ( t - 7)^2 + 49 - 40
= -(t - 7)^2 + 9

There is an axis of symmetry at  x = 7.

so a is true  since 7 is the maximum value of the function and  its less at t = 6.
c is also true   because  of the symmetry about t = 7

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Please Help...I really need this, I dont understand???
Luden [163]

Answer:

Decreased

Strong negative

Step-by-step explanation:

The correlation Coefficient is used to show the strength and type of relationship which exists between the dependent and independent variable. The correlation Coefficient value ranges from - 1, to 1. With values closer to either - 1 or 1 depicting a strong relationship while those closer to 0 represents weak relationship. And correlation Coefficient of 0 indicates that no relationship exiata at all. Depending in the sign, that is positive or negative, positive sign means positive relationship while a negative sign represents a negative association. Positive association is interpreted as, for every increase in A, Variable B also increase and vice versa. For negative association, When A increases, B decreases and vice versa

6 0
3 years ago
If US$1.00 is equivalent JA $75.00, What amount, in US dollars is equivalent JA $3300.00
emmasim [6.3K]

Answer:

It is US $44.00 Equivalent

Step-by-step explanation:

Using ratios (essentially fractions):

1 US : 75 JA

OR

1 US = 75 JA

Dividing both sides by 75 gives us:

\frac{1}{75}US = 1 JA

So if we have 3300 JA we can multiply both sides to get:

44 US = 3300 JA

3 0
3 years ago
I need help with multiple choice plz help no guess
ozzi
I suggest you go to khan acadamey on youtube and look up this topic.


2: 23

3: B



hold on a sec i will keep answering but i wil post this part ill add the rest in the comments





 
7 0
3 years ago
Read 2 more answers
Tyrel And Diego are playing basketball. Together they scored 45 points.Tyrel scored two times as many points as Diego. How many
pshichka [43]

Answer:

Tyrel scored 30 and Diego scored 15

Step-by-step explanation:

This is because the ratio of the score is 2:1  (Tyrel : Diego)

and if you add that together you get 3

which means you have to divide 45 by 3 which gives you 15

and this means I part = 15

so with the ratio 2:1 you have to multiply 15 by each ratio

so 15 x 2 = 30 and 15 x 1 = 15

which gives you 30 and 15

3 0
3 years ago
Find the area of a circle with a<br> circumference of 11(pi)feet.
dlinn [17]

Answer:

30.25pi in terms of pi

94.985 In terms of 3.14

Step-by-step explanation:

Okay since the circumference is 11pi we know d = 11.

Meaning r = 5.5

We can solve this in terms of pi or 3.14, for this I will use both.

The formula for an area of a circle is pi*r^2

So,

5.5 * 5.5 = 30.25.

In terms of pi, the answer would be 30.25pi

In terms of 3.14 the answer would be 94.985

:)

4 0
3 years ago
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