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3 years ago

Can someone give me the answers for theses I’ve been lost all day with online school

Mathematics

1 answer:

lilavasa [31]3 years ago

6 0

Answer:

True. That is a function.

Step-by-step explanation:

A function just means that every input has only one output. The simpler way to do these is the vertical line test. Draw a vertical line anywhere on the graph and see if the vertical line is intersected in two places. If the vertical line is crossed twice, the graph isn't a function.

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Help please. Please Please

iragen [17]

$2x - 6 = 60 - x \\ add \: x \: to \:both \: sides \\ 2x + x - 6 = 60 - x + x \\ 3x - 6 = 60 \\ add \: 6 \: to \: both \: sides \\ 3x - 6 + 6 = 60 + 6 \\ 3x = 66 \\ divide \: both \: sides \: by \: 3 \\ \frac{3x}{3} = \frac{66}{3} \\ x = 22$

8 0

3 years ago

Solve the quadratic equation by completing the square x²+12x+26=0

vova2212 [387]

Answer:

x={-13,-2}

Step-by-step explanation:

(x+13)(x+2)=0

x+13=0

x=-13

x+2=0

x=-2

x={-13,-2}

4 0

3 years ago

You know that you want some type of wood flooring. You found these options at the store.

xenn [34]

Answer:

how much wood do you need

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3 years ago

I need help with this question in my math homework

Yakvenalex [24]

Answer:

∠CDE ↔ 50°
∠FEG ↔ 75°
∠ACB ↔ 55°

Step-by-step explanation:

To solve angle problems like this, you make use of three relations:

linear angles have a sum of 180°
angles in a triangle have a sum of 180°
vertical angles have the same measure

The attached diagram shows the measures of all of the angles of interest in the figure. The ones shown in blue are the ones that have the measures and names on the list of answer choices.

A good place to start is with the linear angle pair at A. Since the sum of the two angles is 180°, the angle at A that is inside the triangle will be ...

180° -130° = 50°

Then the missing angle in that triangle at C will have the measure that makes the sum of triangle angles be 180°:

∠ACB = 180° -50° -75° = 55° . . . . . this is one of the angles on your list

Similarly, the angle at E inside triangle FEG will have a measure that makes those angles have a sum of 180°:

∠FEG = 180° -60° -45° = 75° . . . . . this is one of the angles on your list

The two angles whose measures we just found are vertical angles with the base angles in triangle CDE, so that triangle's angle D will have a measure that makes the total be 180°.

∠CDE = 180° -55° -75° = 50° . . . . . this is one of the angles on your list

4 0

3 years ago

In a survey of 468 registered voters, 152 of them wished to see Mayor Waffleskate lose her next election. The Waffleskate campai

Viefleur [7K]

Answer:

The 95% confidence interval for the proportion is (0.2824, 0.3672). The upper limit of the interval is higher than 32% = 0.32, which means that the confidence interval does not support this claim.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.