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larisa [96]
3 years ago
15

This is for an exam please help IM LITERALLY GIVING YOU ALL OF MY POINTS!!!

Mathematics
2 answers:
Ymorist [56]3 years ago
8 0

Answer:

The equations should have been added up to equal 180 instead of being set to equal each other. The two are supplementary angles, which can be seen due the rule that a pair of interior angles on the same side of the transversal is supplementary. To fix this issue from the work that they did, they should subtract the 140 from 180, so the correct measure of DKH is actually 40 degrees.

Step-by-step explanation:

yawa3891 [41]3 years ago
3 0

Answer:

Which class are you in presently

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A volleyball reaches its maximum height of 13 feet, 3 seconds after its served. Which of the following quadratics could model th
kykrilka [37]
If it reaches its maximum height a t=3 its velocity must be zero at t=3

dy/dx=0 at t=3

dA/dx=4x+12=24 at t=3 so this does not apply

dB/dx=-4x+12=0 at t=3 and B=13 at t=3 so B applies

dC/dx=-4x-12=-24 at t=3 so this does not apply

dD/dx=-4x-12=-24 at t=3 so this does not apply

dE/dx=-4x-12=-24 at t=3 so this does not apply

So only quadratic B: reaches a maximum height of 13 feet at 3 seconds.
3 0
3 years ago
Read 2 more answers
Which of these is a correct step in constructing congruent angles?
Marrrta [24]

Answer:

if not mistaken is use a compass and draw an arc across both the legs of the given angle

LET ME KNOW IF HELPED

8 0
3 years ago
The data below shows the minimum wage requirement of the u.s government in years,x, after 1960. Based on the data provided what
mixas84 [53]

Answer:

<em>Option c</em>

Step-by-step explanation:

<u>Best Fit Regression Model </u>

When experimental data is collected, scientists frequently ask themselves if there is a relationship between some of the variables under study. It's crucial in modern times where artificial intelligence technology is trying to find key answers where traditional approaches hadn't before.

One of the most-used tools to find relations between variables is the regression model and its best fit lines to try to find an expression who relates variable x (years from 1960) and variable y (minimum wage requirement) as of our case.

The provided data was entered into a digital spreadsheet and an automatic function was applied to find the best-fit model.

We found this equation:

y=0.11363x+0.6906

when rounded to three decimal places, we find

y=0.114x+0.691

Which corresponds to the option c.

7 0
3 years ago
How do you write 8.216 in scientific notation?
Igoryamba
How you write 8.216 in scientific notation; 8.216 * 10 ^ 3 

10 ^ 3 = 10 to the 3rd power.
5 0
3 years ago
Last month, he sold 505050 chickens and 303030 ducks for \$550$550dollar sign, 550. This month, he sold 444444 chickens and 3636
Nostrana [21]

Answer: the cost of one chicken is $8

The cost of one duck is $5

Step-by-step explanation:

Let x represent the cost of one chicken.

Let y represent the cost of one duck.

Last month, he sold 50 chickens and 30 ducks for $550. It means that

50x + 30y = 550- - - - - - - - - - - 1

This month, he sold 44 chickens and 36 ducks for $532. It means that

44x + 36y = 532- - - - - - - - - - - 2

Multiplying equation 1 by 44 and equation 2 by 50, it becomes

2200x + 1320y = 24200

2200x + 1800y = 26600

Subtracting, it becomes

- 480y = - 2400

y = - 2400/- 480

y = 5

Substituting y = 5 Intl equation 1, it becomes

50x + 30 × 5 = 550

50x + 150 = 550

50x = 550 - 150

50x = 400

x = 400/50

x = 8

3 0
3 years ago
Read 2 more answers
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