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jolli1 [7]
3 years ago
5

Help ASAP!! Will give brainliest to correct answer!!

Mathematics
2 answers:
inna [77]3 years ago
8 0

Answer:

The answer would be D

Step-by-step explanation:

PQT and TQR

bearhunter [10]3 years ago
3 0

Answer:

The answer to your question is letter D

Step-by-step explanation:

Supplementary angles are two angles when added gives 180°.

-To solve this problem look for angles with this characteristic.

- One possibility is angles ∠PQT + ∠TQS + ∠SQR

  but we need only 2 angles not 3 angles

- Another possibility is angles

                ∠PQT + ∠TQR = 180°

This answer is a choice, so this is the right answer.

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What is the value of 2x^2 when x= -3
olga nikolaevna [1]

Answer:

C) 18

Step-by-step explanation:

Substitute x=-3 into the expression:

2(-3)² = 2(9) = 18

Therefore, C is correct

7 0
2 years ago
What is the mean of 245,000 46,000 132,00 838,000
stiks02 [169]

Answer: 315,250

Step-by-step explanation:

1. Add the numbers together

245,000 + 46,000 + 132,00 + 838,000 = 1,261000

2. Divide by the # of entries (4)

1,215,046 ÷ 4 = 315250

6 0
3 years ago
Read 2 more answers
A sector with a central angle measure of 200 degrees has a radius of 9 cm. What is the area of the sector?
Sergio [31]

Answer:

\boxed{Area\ of\ sector = 141.4\ cm^2}

Step-by-step explanation:

Radius = r = 9 cm

Angle = θ = 200° = 3.5 radians

Now,

Area \ of \ sector = \frac{1}{2} r^2 \theta

Area = 1/2 (9)²(3.5)

Area = 1/2 (81)(3.5)

Area = 282.7 / 2

Area of sector = 141.4 cm²

6 0
3 years ago
Read 2 more answers
When the price is $ 40 per radio, a producer will supply 90 radios each month for sale. For each $4 increase in price the produc
SVEN [57.7K]

Price for a radio = $ 40 for supply 90 radios in a month.

Ratio of increase in price to the number of radios supplies in a month 4:8 that is 1:2.

New unit price given  = $76.

Difference in unit price given in starting and New unit price = 76-40=$36

So, increase in unit price = $36.

Let us assume number of supplied increased  = x radios for increase in unit price $36.

So, we can setup a perportion as,

1/2 = 36/x.

On cross multiplication, we get

1*x = 2*36

x= 72.

So, 72 is the increased number of radios in 90 radios.

That is 72+90 = 162 radios each month.

Therefore, 162 radios are supplied if their per unit price is $76.

5 0
3 years ago
The mean and standard deviation of the number of practices are = 8 practices and sx = 4.47 practices. The mean and standard devi
ddd [48]

Least square regressions are used to find the equation of <em>best fit between two variables</em>.

The equation of the least-squares regression line is: \mathbf{y = 9.414 - 0.213x}

The given parameters are:

\mathbf{\bar x = 8}

\mathbf{\sigma_x = 4.47}

\mathbf{\bar y = 7.71}

\mathbf{\sigma_y = 1.20}

\mathbf{r = -0.793}

The equation of the least-squares regression line is represented as:

\mathbf{y = a + bx}

Where:

\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}

\mathbf{a = \bar y - b\bar x}

So, we have:

\mathbf{b = r \times \frac{\sigma_y}{\sigma_x}}

\mathbf{b = -0.793 \times \frac{1.20}{4.47}}

\mathbf{b = -0.213}

\mathbf{a = \bar y - b\bar x}

\mathbf{a = 7.71 - (-0.213) \times 8}

\mathbf{a = 9.414}

So, the equation is:

\mathbf{y = a + bx}

\mathbf{y = 9.414 - 0.213x}

Read more about equations of least squares regression at:

brainly.com/question/2141008

8 0
2 years ago
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