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RSB [31]
3 years ago
12

How do I simplify the square root: 7 times the square root of 81

Mathematics
1 answer:
DENIUS [597]3 years ago
7 0
7\cdot\sqrt{81}=7\cdot\sqrt{9\cdot9}=7\cdot9=\boxed{63}
You might be interested in
Find the value of x that makes lines u and v parallel. ​
omeli [17]

Answer:

x = 5

Step-by-step explanation:

From the picture attached,

If the lines u and v are parallel and a third line (transversal) is intersecting these lines at two distinct points,

Both the angles given in the picture, will be equal in measure as these angles are interior alternate angles.

16x = 15x + 5

16x - 15x = 5

x = 5

Therefore, x = 5 makes the lines v and u parallel.

3 0
3 years ago
what is the measure of the base angle,x, of the isosceles triangle shown below? round your answer to the nearest tenth of a degr
MAVERICK [17]

Answer:

x ≈ 49.7°

Step-by-step explanation:

Since, the given triangle is an isosceles triangle,

Two sides having measure 17 units are equal.

Opposite angles of these equal sides will be equal.

Measure of the third angle = 180° - (x + x)°

By sine rule,

\frac{\text{sinx}}{17}=\frac{\text{sin}(180-2x)}{22}

\frac{\text{sinx}}{17}=\frac{\text{sin}(2x)}{22} [Since, sin(180 - θ) = sinθ]

\frac{\text{sinx}}{17}=\frac{2(\text{sin}x)(\text{cos}x)}{22}

\frac{\text{sinx}}{17}=\frac{(\text{sin}x)(\text{cos}x)}{11}

\frac{1}{17}=\frac{(\text{cos}x)}{11}

cos(x) = \frac{11}{17}

x = 49.68°

x ≈ 49.7°

4 0
3 years ago
Compare the linear equation 2x-y=4 to the function graphed below.
kumpel [21]

Answer:

The answer is be the intercept

8 0
2 years ago
Need help ASAP!! What is the value of x?
mrs_skeptik [129]

Answer:

98

Step-by-step explanation:

the exterior angle is equal to the sum of the opposite interior angles

<em>-Sumin <3</em>

8 0
3 years ago
Read 2 more answers
HELP<br><br> ANGLE S = ___ DEGREES
marusya05 [52]

Answer:

Maybe I'm just really tired and seeing things, but is the answer not ∠S=45°?

7 0
2 years ago
Read 2 more answers
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