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4 years ago

Can someone please help me with this question?

Mathematics

2 answers:

Ratling [72]4 years ago

6 0

Yes of course duhhhhh

Ivan4 years ago

5 0

The answer to you question is yes

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Tina bought 20 apples and bananas for her class. Apples cost $1.50 each. Bananas cost $1.25 each. Tina spent $28 in all. How man

babunello [35]

Tina bought 12 bananas and 8 apples

6 0

4 years ago

Find BC if B(8, -7) and C(-4,-2)

Studentka2010 [4]

Answer:

13 unit

Step-by-step explanation:

By the distance formula,

The distance between two points $(x_1,y_1)$ and $(x_2, y_2)$ is,

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Thus, the distance between B(8,-7) and C(-4,-2) is,

$BC=\sqrt{(-4-8)^2+(-2+7)^2}$

$=\sqrt{(-12)^2+(5)^2}$

$=\sqrt{144+25}$

$=\sqrt{169}$

$=13\text{ unit}$

3 0

3 years ago

an initial population of 700 trout increases at an annual rate of 22%. Which exponential function models the trout population?

REY [17]

Answer:

$y=700(1.22)^{x}$

Step-by-step explanation:

Let

y-----> the trout population

x----> the time in years

we know that

$22\%=22/100=0.22$

$y=700(1+0.22)^{x}$

$y=700(1.22)^{x}$ ----->exponential function that models the trout population

7 0

3 years ago

What is 2+5 nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

bixtya [17]

Answer:

7 nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

5 0

3 years ago

Read 3 more answers

Mary, a colleague of yours, wants to test the effectiveness of a new lesson plan on two different groups of students. She wants

____ [38]

Answer:

To use a paired t-test

Step-by-step explanation:

t-tests are essentially tests carried out to compare two different groups to check if there is a major difference in their performances or results which may be related in certain characteristics.

A paired (correlated) t-test is used when there are matched pair of similar units or instances of repeated measurements.

In this case, Mary has to use a paired t-test because the samples (students) have high similarity in characteristics. The students in question has to be from the same class to test her hypothesis (similar characteristics).

7 0

3 years ago