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Fynjy0 [20]
4 years ago
15

What is the value of 2(x+y)² when X=3 and Y=4 ?

Mathematics
2 answers:
Nina [5.8K]4 years ago
8 0

Answer:

{2(3 + 4)}^2 \\ 2 \times 14 \\ 28

Nadya [2.5K]4 years ago
3 0

Answer:

98

Step-by-step explanation:

2 (x + y) ²

= 2 (3 + 4 ) ²

= 2 x 7²

= 2 x 49

=  98

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What is the length of line segment PQ? If you can please explain, thanks.
nydimaria [60]

Given:

Tangent segment MN = 6

External segment NQ = 4

Secant segment NP =x + 4

To find:

The length of line segment PQ.

Solution:

Property of tangent and secant segment:

If a secant and a tangent intersect outside a circle, then the product of the secant segment and external segment is equal to the product of the tangent segment.

\Rightarrow NQ\times NP = MN^2

\Rightarrow 4\times (x+4) = 6^2

\Rightarrow 4x+16 = 36

Subtract 16 from both sides.

\Rightarrow 4x+16-16 = 36-16

\Rightarrow 4x =20

Divide by 4 on both sides.

$\Rightarrow\frac{4x}{4}=\frac{20}{4}

\Rightarrow x = 5

The length of line segment PQ is 5 units.

5 0
4 years ago
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Find the slope and the y -intercept of the line.
Eduardwww [97]

Answer:

The slope is: 3

The y-intercept is: \frac{2}{3} or 0.66

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope of the line and "b" is the y-intercept.

To write the given equation in this form, we need to solve for "y":

9x - 3y = -2\\\\- 3y = -9x-2\\\\y=3x+\frac{2}{3}

Therefore, you can identify that the slope of this line is:

m=3

And the y-intercept is:

b=\frac{2}{3}=0.66

7 0
3 years ago
What is 26-12+29 equal
leonid [27]

Answer:

43

Step-by-step explanation:


3 0
3 years ago
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What have I done wrong?
Sedbober [7]

Answer:

Step-by-step explanation:

r = 11 cm

Instead of adding 11, 12 is added

It should be,

25.91813939 + 11 + 11

4 0
3 years ago
What is the angle measurement of the angle EFG<br>Helpp!!​
RoseWind [281]

Answer:

∠EFG = 151°

Step-by-step explanation:

∠EFG = 44° + 107° = 151°

4 0
3 years ago
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