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Nitella [24]
3 years ago
12

Hey someone please please help me with this please i am really bad at math

Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0

Answer:

x-y

Step-by-step explanation:

when you subtract (-2x-8y)-(-3x-7y)

you have to distribute that negative onto -3x-7y which turns it positive

which results in -2x-8y+3x+7y

simplified to x-y

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Help me plsssssssssssssssssss
kotykmax [81]

Answer:

The function that best models the given data is;

B. h(t) = -6.73·t² + 14.19·t + 0.83

Step-by-step explanation:

The data in the given table is presented as follows

\begin{array}{cccccc}Time, \, t(s)&0&0.5& 1.0 & 1.5& 2.0\\Height, \, h \, (m) & 1.0 & 5.42 & 9.71 & 5.9 & 2.6\end{array}

Where;

Time, t(s) is the independent variable

Height, h(m) is the dependent variable

Therefore, we have;

When t = 0, h = 1.0

From the given functions, we have the following table of the result of the function generated with Microsoft Excel

\begin{array}{cccccc}\\t & h & A & B & C& D\\0 & 1.0 & 1.22 & 0.83& 0.83& 1.22\\0.5 & 5.42 & 5.26 & 6.2425 & 9.6075 & 10.17\\1 & 9.71 &  4.39 & 8.79 & 21.75 & 24.03 \\ 1.5 & 5.9 &  -1.39& 6.9725& 37.2575 &42.8\\2& 2.6 & -12.08 & 2.29 & 56.13 & 66.48\end{array}

By comparison, the function that nest models the given data is the function 'B', given as follows;

h(t) = -6.73·t² + 14.19·t + 0.83.

3 0
3 years ago
30% of n equals 135
Pani-rosa [81]
Can u give more details
5 0
3 years ago
How to solve this problem.
andreyandreev [35.5K]
Notice the picture below

now, if the arc "x" is 48°, and the arc across the circle is also 48°, then those chords are congruent, notice the chords in red

7 0
4 years ago
Why is the simplified value of the expression below? -8*(-3)
kirill115 [55]
When you multiply two numbers which have the same sign the answer is positive. Therefore multiply eight and three to get 24 and the answer is positive; therefor the answers 24.
8 0
3 years ago
1. Alternate interior angles theorem; 2.
abruzzese [7]

m∠KLF + m∠BKL = 180° (definition of supplementary angles)

Also:

m∠KLF + m∠BKL = m∠BKL + m∠AKL(substitution property)

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

An angle is formed from the intersection of two or more lines. Types of angles are acute, obtuse and scalene.

From the image:

m∠KLF + m∠BKL = 180° (definition of supplementary angles)

Also:

m∠KLF + m∠BKL = m∠BKL + m∠AKL(substitution property)

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
2 years ago
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