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3 years ago

13

Does anyone know this

1 answer:

forsale [732]3 years ago

5 0

A) 15
B) 10
C) 9
D) 4
E) 13
F) 5

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Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2

ehidna [41]

Answer:

8√2

Step-by-step explanation:

4√2 + 7√2 - 3√2 = (√2)(4 + 7 - 3) = 8√2

Recognize that √2 is a common factor and simply add its coefficients.

6 0

3 years ago

Read 2 more answers

I know that it falls to the left and rises to the right but how do I express that here?

Jlenok [28]

Answer:

c

Step-by-step explanation:

4 0

3 years ago

I need this answered, please and thanks

Nady [450]

Answer:

P = $\frac{28\sqrt{2} }{2}$ units

A = 24.5 $unit^{2}$

Step-by-step explanation:

Length of one side

sin $45^{o}$ = $\frac{x}{7}$

7sin $45^{o}$ = x

7( $\frac{\sqrt{2} }{2}$ )= x

$\frac{7\sqrt{2} }{2}$ = x

Perimeter = 4( $\frac{7\sqrt{2} }{2}$ ) = $\frac{28\sqrt{2} }{2}$

Area = ( $\frac{7\sqrt{2} }{2}$ )( $\frac{7\sqrt{2} }{2}$ ) = $\frac{98}{4}$ =24.5

5 0

3 years ago

At what point do the curves r1(t) = t, 5 − t, 48 t2 and r2(s) = 8 − s, s − 3, s2 intersect?

DerKrebs [107]

Set components equal:
$t = 8-s \\ 5-t = s-3 \\ 48 t^2 = s^2$

From this we find:
$t = 8-s \\ s = 4 \sqrt{3} t$

Substitute and solve system:
$t = \frac{8}{1+4 \sqrt{3}} = 1.009 \\ \\ s = 8-t = 8 - 1.009 = 6.991$

The point where they intersect is:
$(1.009, 5-1.009, 48(1.009)^2)$

3 0

4 years ago

Please help me!!! i’ll mark you as brainliest

Kobotan [32]

Answer:

$\angle 1+\angle 5 = 90$

Step-by-step explanation:

Given

The attached plot

Required

Prove that:

$\angle 1+\angle 5 = 90$ --- right angle

From the plot, we have:

$\angle 1+\angle 2 + \angle 3+\angle 4+\angle 5 = 360$ --- angle at a point

$\angle 2+\angle 3 = 180$ --- straight line

$\angle 4 = 90$ --- This divides $\angle 2 + \angle 3$ to equal parts

So, we have:

$\angle 1+\angle 2 + \angle 3+\angle 4+\angle 5 = 360$

$\angle 1+ (\angle 2 + \angle 3) +(\angle 4)+\angle 5 = 360$

This gives:

$\angle 1+ 180 +90+\angle 5 = 360$

$\angle 1+ 270+\angle 5 = 360$

Collect like terms

$\angle 1+\angle 5 = 360-270$

$\angle 1+\angle 5 = 90$ --- proved

5 0

3 years ago