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3 years ago

Four less than the product of one and number x

Mathematics

1 answer:

MaRussiya [10]3 years ago

6 0

1x-4 I hope this helps.

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What is the area of triangle DEF?

FrozenT [24]

Answer:

$A=2\sqrt{14}\ units^2$

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

$a=5\ units,b=6\ units,c=3\ units$

<em>Find the semi-perimeter s </em>

s= $\frac{5+6+3}{2}=7\ units$

Find the area of triangle

$A=\sqrt{7(7-5)(7-6)(7-3)}$

$A=\sqrt{7(2)(1)(4)}$

$A=\sqrt{56}\ units^2$

simplify

$A=2\sqrt{14}\ units^2$

3 0

3 years ago

Translate this sentence into an equation.: Mai's savings increased by 15 is 65. Use the variable m to represent Mai's savings.

Schach [20]

M+15=65 could this be the answer you are possibly looking for? if the m is Mai's savings "increased by 15" would simply be adding 15 and it would be equal to 65

7 0

3 years ago

It cost $16.80 for a half dozen cookies. How much does one cookie cost?

Vadim26 [7]

I think it’s 36 cents or .357

5 0

3 years ago

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Simplify this expression: cos t(sec t − cos t)

Nostrana [21]

$\cos t \, (\sec t - \cos t)$
$= \cos t \, (\frac{1}{\cos t} - \cos t)$
$= 1 - \cos^2 t$
$= \bf sin^2 t$

5 0

3 years ago

Read 2 more answers

Rate of change of y=2x=3

Rama09 [41]

bearing in mind that the slope goes by several names

average rate of change

rate of change

rise over run

deltaY over deltaX

however, is the same cat disguised with a different costume.

$\bf y=\stackrel{\stackrel{m}{\downarrow }}{2}x-3\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}$

7 0

3 years ago