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velikii [3]
3 years ago
15

Please help. I think I know but I'd like to have it confirmed.

Mathematics
1 answer:
V125BC [204]3 years ago
4 0
Part 1
40 \times 10.5 = 402
Part 2
40 \times 10.5 + 5 \times 1.5 \times 10.5 \\ = 402 + 78.75 \\ = 480.75
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I will upvote and give brainliest answer
grigory [225]

Answer:

The answer is 67 degrees.

Step-by-step explanation:

The angle x is supplementary with 23 degrees because that angle is an alternate interior. Recall that is within a right angles as well so

90 - 23 = 67

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3 years ago
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What is the solution of the following system of linear equations?<br> y = x - 7<br> 2y + x=1
andrew-mc [135]

Answer:

x=5

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Step-by-step explanation:

I just took this!

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3 years ago
How do u simplify these radicals???
AlladinOne [14]
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4 0
4 years ago
PLEASE HELP!!!!!!!!!!!!! DUE SOON
Sergio039 [100]

\bf ~~~~~~\textit{initial velocity} \\\\ \begin{array}{llll} ~~~~~~\textit{in feet} \\\\ h(t) = -16t^2+v_ot+h_o \end{array} \quad \begin{cases} v_o=\stackrel{}{\textit{initial velocity of the object}}\\\\ h_o=\stackrel{}{\textit{initial height of the object}}\\\\ h=\stackrel{}{\textit{height of the object at "t" seconds}} \end{cases} \\\\[-0.35em] ~\dotfill\\\\ h=-16t^2+\stackrel{\stackrel{v_o}{\downarrow }}{65}t


now, take a look at the picture below, so for 2) and 3) is the vertex of this quadratic equation, 2) is the y-coordinate and 3) the x-coordinate.


\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ h=\stackrel{\stackrel{a}{\downarrow }}{-16}t^2\stackrel{\stackrel{b}{\downarrow }}{+65}t\stackrel{\stackrel{c}{\downarrow }}{+0} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left( -\cfrac{65}{2(-16)}~~,~~0-\cfrac{65^2}{4(-16)} \right) \implies \left( \cfrac{65}{32}~,~0- \cfrac{4225}{-64}\right)


\bf \left( \cfrac{65}{32}~,~0+ \cfrac{4225}{64}\right)\implies \left( \stackrel{seconds}{2\frac{1}{32}}~~,~~ \stackrel{feet~hight}{66\frac{1}{64}}\right)

6 0
3 years ago
Answer to this please ?
stepan [7]

Answer:

(-a,b)

Step-by-step explanation:

You use midpoint formula which is (x1+x2/2),(y1+y2/2)

8 0
4 years ago
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