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3 years ago

50 POINTS !! PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Mathematics

2 answers:

mrs_skeptik [129]3 years ago

6 0

The hypotenuse of the triangle is 8.603487665. But if you’re rounding to the nearest tenth, the answer would be 8.6

Explanation: you use the square root button on the calculator and add 8.1+2.9 but make sure you square the numbers because you’re finding the hypotenuse. I attached a pic for you to see what I typed in the calculator:)

emmasim [6.3K]3 years ago

5 0

Answer:

write in calculator

2.9^2 +8.1^2

then the for the answer you get, square root it.

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HURRYYYYY!!! PLEASE!

Ira Lisetskai [31]

Answer:

.348

Step-by-step explanation:

7 0

4 years ago

Robby has 9 coins that total $2.15. if he only has nickels and dimes, write the system of equations.

Illusion [34]

Let's assume

number of nickels =n

number of dimes =d

we are given

total number of coins =9

so, we get

$n+d=9$

we know that

1 nickel =$ 0.05

and

1 dimes =$0.10

so, total amount is

$=0.05\times n +0.10\times d$

we are given

total amount =$2.15

so, we get

$0.05n +0.10d=2.15$

so, we get system of equations as

$n+d=9$

$0.05n +0.10d=2.15$ ................Answer

3 0

3 years ago

In a small church in rural pennsylvania, the first pew can fit only 6 people. the second pew can fit 8, and the third can fit 10

IgorC [24]

An=a1+(n-1)d
A15=6+(15-1)2
A15=6+(14)2
A15=6+28
A15=34
Answer=34

7 0

3 years ago

Read 2 more answers

Write an absolute value equation for the graph shown below

BabaBlast [244]

So, hmmm keeping in mind that, an absolute value expression is in effect a piece-wise function, let's find its "slopes", the negarive slope on the left-side and the positive slope on the right side, and let's use the vertex point as our first point

what is the slope of a line that passes through (2, -1) and (0,7)

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 
% (c,d)
&({{ 0}}\quad ,&{{ 7}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{7-(-1)}{0-2}\implies \cfrac{7+1}{-2}\implies -4
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-1)=-4(x-2)
\\\\\\
\boxed{y+1=-4(x-2)}$

now, what is the slope of a line that passes through (2, -1) and (4,7)

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 2}}\quad ,&{{ -1}})\quad 
% (c,d)
&({{ 4}}\quad ,&{{ 7}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{7-(-1)}{4-2}\implies \cfrac{7+1}{2}\implies 4
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-1)=4(x-2)
\\\\\\
\boxed{y+1=4(x-2)}$

since an absolute value expression is just a piece-wise with a +/- versions, then we can just combine those two.

$\bf \begin{cases}
y+1=-4(x-2)\\
y+1=4(x-2)
\end{cases}\implies y+1=\pm 4(x-2)
\\\\\\
y+1=|4(x-2)|\implies y=|4(x-2)|-1$

7 0

3 years ago

Three points of a function are graphed.

Igoryamba

Answer:The function is a direct variation function with a constant

of variation of 1.5.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers