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2 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics

2 answers:

Ainat [17]2 years ago

8 0

Its 4, divide 5 by 5 and you get 2x-7=1, then move all terms to the right side of the equation which gives you 2x=8, then divide by 2, gives you 4.

snow_tiger [21]2 years ago

3 0

Answer:

5(2x-7)=5

10x-35 = 5

10x=40

40/10 = 4

x=4

Step-by-step explanation:

You might be interested in

Let r and s be the roots of x^2 - 6x + 2 = 0. Find (r - s)^2.

Sphinxa [80]

Answer: $(r-s)^{2} = 28$

Step-by-step explanation:

$x^{2} -6x+9=-2+9$
$(x-3)^{2}=7$
$(x-3)= -\sqrt{7}$ or $\sqrt{7}$ <-- there's no plus/minus sign.

$(x-3) = -\sqrt{7}$
$x = 3 -\sqrt{7}$ <-- root.

$(x-3) = \sqrt{7}$
$x = 3+\sqrt{7}$ <-- root.

$[(3-\sqrt{7})-(3+\sqrt{7})]^{2}$
$(3-\sqrt{7} -3 - \sqrt{7})^{2}$ <-- don't forget to distribute the negative.
$(-2\sqrt{7})^{2}$
$(4)(7)$
$28$

4 0

2 years ago

How to find the area of a square ABC D

____ [38]

Answer:

The answer to your question is 13 u²

Step-by-step explanation:

We know that the small triangle is surrounded by right triangles so we can use the Pythagorean theorem to find the lengths of the small triangle

AD² = 3² + 2²

Simplify

AD² = 9 + 4

AD² = 13

AD = $\sqrt{13}$

Find the area of the square

Area = side x side

Area = AD x AD

Area = $\sqrt{13} x \sqrt{13}$

Area = 13 u²

6 0

2 years ago

#1A What is the output when the input in the function table is 0?

timama [110]

Answer:

2(0) + 5 > 5

2(1) + 5 > 7

2(2) + 5 > 9

Step-by-step explanation:

7 0

2 years ago

4x - 2 + y = 6 - 2x for x

Vlada [557]

Answer:

Step-by-step explanation:

8 0

2 years ago

Find the equation of plane that contains P(1,-1,2) and has the normal n=2i+3j+5k (please answer quickly )

mixas84 [53]

Answer:

2x + 3y + 5z = 9

Step-by-step explanation:

The normal defines all the planes perpendicular to that vector. To isolate to a single plane, just apply the known point.

ax + by + cz = d

2x + 3y + 5z = d

2(1) + 3(-1) + 5(2) = 9

8 0

2 years ago