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3 years ago

PLEASE HELP AND EXPLAIN THIS ALSO GRAPH PLS the answer choices are -6, -4, 6, 4

Mathematics

1 answer:

liubo4ka [24]3 years ago

4 0

$\sf \: (x,y) = ( - 4, - 6)$

$\rule{300pt}{3pt}$

Detailed solution can be found in the attachment!!~

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Find the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.

Makovka662 [10]

4 a⁴ - 2 b² + 40 :

4 * ( 2⁴) - 2 * ( 7²) + 40 =

4 * 16 - 2 * 49 + 40 =

64 - 98 + 40 =

-34 + 40 =

+ 6

hope this helps!

4 0

3 years ago

If 59% was 2687 what is 29% of the unmentioned number?

wariber [46]

Answer:

2687

2687×100/59=4554.2

29×4554.2/100= 2686.97 aprox. 2687

6 0

3 years ago

Help me on this please

Vitek1552 [10]

Right triangle = Pythagoras theorem.
a^2+b^2=c^2
there's already c and b so
10^2-8^2=a^2
100-64= 36
a^2=36
square root both sides
to get 6.

5 0

3 years ago

will got 17 out of 25 questions correct on his driving test what percent correct did he get on the test?

Natalija [7]

Answer:

68%

Step-by-step explanation:

$\frac{17}{25} = \frac{68}{100}$
$\frac{68}{100}$ = 68%

I hope this helps!

5 0

3 years ago

Read 2 more answers

what is the equation in slope intercept form of the line that passes through the point (-4,47) and (2,-16)

Vilka [71]

The slope-intercept form:

$y=mx+b$

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (-4, 47) and (2, -16). Substitute:

$m=\dfrac{-16-47}{2-(-4)}=\dfrac{-63}{6}=-\dfrac{63:3}{6:3}=-\dfrac{21}{2}$

Therefore we have:

$y=-\dfrac{21}{2}x+b$

Put the coordinates of the point (2, -16) to the equation:

$-16=-\dfrac{21}{2}(2)+b\\\\-16=-21+b\qquad\text{add 21 from both sides}\\\\5=b\to b=5$

Answer: $\boxed{y=-\dfrac{21}{2}x+5}$

6 0

3 years ago