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SVETLANKA909090 [29]
3 years ago
8

Whαt ís thє vαluє σf х ?

d="TexFormula1" title="x {}^{2} - \: 25 = 144" alt="x {}^{2} - \: 25 = 144" align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
Zigmanuir [339]3 years ago
7 0

Answer:

hey mate!!

Step-by-step explanation:

x

2

−25=144

X^2=144+25

x^2=169

x=√169

x=13

Sorry mate check out the answer !

Vera_Pavlovna [14]3 years ago
3 0
Oi mate! x=144-25
144-25=119
x=119
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If angle A B C is congruent to angle C B D, find x.
Svetlanka [38]
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3 years ago
A line is drawn so that it passes through the points (-3, -1) and (4, 2).
marishachu [46]

Answer:

(A) \boxed{\bold{y=\frac{3}{7}x+\frac{2}{7}}}

(B) \boxed{\bold{2 \ = \ \frac{3}{7} * \ 4 \ + \ \frac{2}{7}  }}

Explanation:

(A) Slope: y = mx + b

m = 3/7

b = 2/7

Slope = \bold{\frac{y_2-y_1}{x_2-x_1}}

\bold{\left(x_1,\:y_1\right)=\left(-3,\:-1\right),\:\left(x_2,\:y_2\right)=\left(4,\:2\right)}

M = \bold{\frac{2-\left(-1\right)}{4-\left(-3\right)}: \ \frac{3}{7} }

Y intercept

\bold{y=\frac{3}{7}x+b}

Plug in \bold{\left(-3,\:-1\right)\mathrm{:\:}\quad \:x=-3,\:y=-1}

\bold{-1=\frac{3}{7}\left(-3\right)+b}

Isolate B

\bold{-1=\frac{3}{7}\left(-3\right)+b}

b = \bold{\frac{2}{7} }

(B) 4 = x, 2 = y

2 = 3/7 * 4 + 2/7

5 0
3 years ago
Read 2 more answers
What is the area of a regular octagon with a side length of 6 mm and an apothem length of 7.243 mm? Round your answer to the nea
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OCTA=8, an octagon has 8 sides, thus if one side is 6mm, then all sides, namely the perimeter, is 6+6+6+6+6+6+6+6, or 48.

now, we know what the apothem is.

\bf \textit{area of a regular polygon}\\\\&#10;A=\cfrac{1}{2}ap~~&#10;\begin{cases}&#10;a=apothem\\&#10;p=perimeter\\&#10;-------\\&#10;p=48\\&#10;a=7.243&#10;\end{cases}\implies A=\cfrac{1}{2}(7.243)(48)
5 0
3 years ago
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