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aliina [53]
3 years ago
6

Find the measure of angle T to the nearest degree.

Mathematics
1 answer:
irina1246 [14]3 years ago
3 0

Answer:

The answer is option 2.

Step-by-step explanation:

You have to use Cosine Rule, cosθ = adjacent/hypotenuse. Substitute the following value into the formula :

\cos(θ) =  \frac{adj.}{hypo.}

Let θ = T,

Let adj = 7.5,

Let hypo = 19.5,

\cos(T) =  \frac{7.5}{19.5}

T =  { \cos( \frac{7.5}{19.5} ) }^{ - 1}

T = 67° \:  \: (near. \: degree)

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Identify the response variable and whether the setting involves a single sample, a matched pairs, or two independent samples.
Helga [31]

Answer:

1. single sample design

2. matched pairs

3. two independent samples.

Step-by-step explanation:

the response variable is known as the dependent variable, it is the variable that the researcher is interested i finding. the response variable is the x variable that responds to changes in the independent variable.

1.

In this question the researcher has only one sample that is the specimen. that is the reference specimen that she obtained. Therefore it is a single sample design.

the response variable here is the measurement of concentration.

2. In this question we have two pairs, men and women. The researcher is interested in comparing attitudes as she interviews them. so response variable is attitude or behavior

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3 years ago
Which is a solution to the equation 6x + y = –4?
KatRina [158]
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y = -4 - 6x


2. Substitute values for guess and check
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2 = -4 -6
This is incorrect.

-10 = -4 - (6 x 1)
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The correct answer is C.
7 0
3 years ago
The rectangular prism is to be sliced perpendicular to the shaded face and is to pass through point B, parallel to the front fac
kodGreya [7K]

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Step-by-step explanation:

As ,we know

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The dimensions of the rectangular  cross section is congruent with the dimensions of the front face

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<u>Then ,The dimensions of the cross section will also be  10 centimeters by 18 centimeters</u>

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4 0
3 years ago
The sum of two numbers is 43, and their product is 450. What is their difference?​
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Answer:

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hope this helps

Step-by-step explanation:

8 0
3 years ago
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