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Andre45 [30]
3 years ago
12

Ms. Humphries tells her class to draw a triangle with angle measures of 50° and 100° and the included side is 5 in. Which tool c

an be used to get the angles correct? A) a ruler B) a compass C) a protractor D) a barometer
Mathematics
2 answers:
miskamm [114]3 years ago
7 0
The answer is: A Ruler.
Verizon [17]3 years ago
5 0

Answer:The answer is C.


Step-by-step explanation: The answer is C because a ruler doesnt measure degrees and a compass measures direction and i think a barometer measures some kind of temperature of daylight or something... all i know is it its C



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Rewrite the equation by completing the square.<br><br>x^2 −16x+63=0<br>(x +{ })^2={ }
Elina [12.6K]

Answer:

(x + 4) ^{2} + 47 = 0

Step-by-step explanation:

(x ^{2}  + 4 ^{2} ) - 4 ^{2}  + 63 = 0 \\ (x + 4) ^{2}  + 47 = 0

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  • <em>Add</em><em> </em><em>the</em><em> </em><em>result</em><em> </em><em>to</em><em> </em><em>x^2</em><em> </em><em>and</em><em> </em><em>subtract</em><em> </em><em>it</em><em> </em><em>with</em><em> </em><em>6</em><em>3</em><em> </em><em>e</em><em>.</em><em>g</em><em> </em><em>the</em><em> </em><em>second</em><em> </em><em>e</em><em>q</em><em>u</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em>
7 0
4 years ago
(HELP PLEASE)Patrick Mahomes completed 15 of his 25 passes for the Kansas City Chiefs. What
Len [333]

Answer:

60%

Step-by-step explanation:

15/25 = x/100

0.60 = x/100

0.60 * 100 = x

60 = x

25 * 60% = 15

5 0
3 years ago
I NEED HELP ASAP
SIZIF [17.4K]

Answer:

It is not reasonable that the state education department claims the percentage for the entire state is 73%.

Step-by-step explanation:

We are given that 191 of the 288 high school students surveyed at a local school said they went outside more during school hours as elementary school students than they do now as high school students.

Firstly, the pivotal quantity for finding the confidence interval for the population proportion is given by;

                         P.Q.  =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of high school students who went outside more during school hours as elementary school students than they do now as high school students =  \frac{191}{288} = 0.66

           n = sample of high school students = 288

            p = population percentage for the entire state

<em> Here for constructing a 90% confidence interval we have used a One-sample z-test for proportions. </em>

<em> </em>

The margin of error is given by;

       M.E.  =  2 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }

                =  2 \times \sqrt{\frac{0.66(1-0.66)}{288} }

      M.E.  =  0.056 or 5.6%

So, the confidence interval so formed = \hat p \pm \text{Margin of error}

                                                                = [0.66 - 0.056 , 0.66 + 0.056]

                                                                = [0.604, 0.716]

Since the above interval does not include 0.73 or the population proportion of 73% falls outside the above interval. So, it is not reasonable that the state education department claims the percentage for the entire state is 73%.

4 0
3 years ago
A rectangular vegetable patch has a perimeter of 28 meters and an area of 48 square
aliina [53]

Answer:

Length = 8 meters

Width = 6 meters

Step-by-step explanation:

Given the following information:

Perimeter of a rectangular vegetable patch: 2(L + W) = 28 meters

Area = L × W = 48 m²

We can solve for the dimensions by using both equations.

First, let's use the formula for the perimeter of the rectangular vegetable patch, and isolate one of the given variables:

2(L + W) = 28

Divide both sides by 2:

\frac{2(L + W)}{2} = \frac{28}{2}

L + W = 14

Subtract W from both sides to isolate L:

L + W - W = 14 - W

L = 14 - W

Next, we'll take the formula for the area, and substitute the value for the L from our previous step:

A = 48  =  L × W

48  = W × (14 - W)

Distribute W into the parenthesis:

48 = 14W - W²

Add W² and subtract 14W to both sides:

W² - 14W + 48 = 14W - 14W - W² + W²

W² - 14W + 48 = 0   ⇒ This represents a quadratic equation in standard form. We can use the coefficient and constant values to solve for its roots.

a = 1, b = -14, and c = 48

Substitute these values into the quadratic equation:

x = \frac{-b +/- \sqrt{b^{2}-4ac}}{2a}

x = \frac{14 +/- \sqrt{(-14)^{2}-4(1)(48)}}{2(1)}

x = \frac{14 +/- \sqrt{196-192}}{2}

x = \frac{14 +/- \sqrt{4}}{2}

x = \frac{14 + 2}{2}, x = \frac{14 - 2}{2}

x = 8, x = 6

Now, we can substitute these values into the formulas for the perimeter and area to find the true dimensions of the rectangular vegetable patch.

Perimeter: 2(L + W) = 2(8 + 6) = 28 meters

Area = L × W = 8 × 6  = 48 m²

Therefore, the dimensions of the rectangular vegetable patch are:

Length = 8 meters

Width = 6 meters

Dimensions: 8 × 6 meters.

3 0
3 years ago
Whats (c-7)(c+5) , (double brackets)
kherson [118]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

let's evaluate :

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  • {c}^{2}  - 2c - 35
6 0
3 years ago
Read 2 more answers
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