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polet [3.4K]
3 years ago
6

Pls help I have a test

Mathematics
2 answers:
CaHeK987 [17]3 years ago
5 0

Answer:1373/448

Step-by-step explanation:

49+7square root of 5 x 2 square root of 2/7 square root of 3 x 2 square root of 6

49+16807 x 2 square roof of 2/7 square root of 3 x 2 square root of 6

49+16807 x 4/7 square root of 3 x 2 square root of 6

49+67228/7 square root of 3 x 2 square root of 6

67277/7 square root of 3 x 2 square root of 6

67277/343 x 2 square root of 6

67277/343 x 64

67277/21952

1373/448

ElenaW [278]3 years ago
5 0

Step-by-step explanation:

7²×7⁵×2²/7³×2⁶

7²×7²/2⁴

49²/16

=2401/16

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Find 2 consecutive odd integers sum of who's square is 290​ pls send fast
ELEN [110]

Answer:

<h3>Hence required integers are 11 and 13</h3>

Let x an odd positive integer

Then, according to question

x^2 +(x+2)^2=290

2x^2 +4x−286=0

x^2 +2x−143=0

x ^2+13x−11x−143=0

(x+13)(x−11)=0

x=11 as x is positive

Hence required integers are 11 and 13

Step-by-step explanation:

Hope it is helpful....

7 0
3 years ago
△ABC is similar to △XYZ. Also, side AB measures 6 cm, side BC measures 18 cm, and side XY measures 12 cm.
Serggg [28]

Answer:

value of sides YZ is 36 cm

Step-by-step explanation:

Similar triangles states that the length of the corresponding sides are in proportion.

Given that: ΔABC is similar to ΔXYZ

then;

Corresponding sides are in proportion i.e

\frac{AB}{XY}=\frac{BC}{YZ}=\frac{AC}{XZ}    .....[1]

As per the statement:

side AB = 6 cm, side BC =18 cm and side XY = 12 cm.

Substitute these in [1] to solve for side YZ;

\frac{6}{12}= \frac{18}{YZ}

or

\frac{1}{2} = \frac{18}{YZ}

By cross multiply we have;

YZ = 36 cm

Therefore, the value of sides YZ is 36 cm


4 0
3 years ago
Read 2 more answers
What is the value of x in the diagram below?
otez555 [7]

The cosine of 30° is √3 / 2.

Since cosine is Adjacent over Hypotenuse, Hypotenuse = (2 / √3) * 9 = 18 / √3.

The cosine of 45° is √2 / 2.

Therefore, X = (2 / √2) * (18 / √3) = 36 / √6 = 18 / √1.5 = C

8 0
3 years ago
Why would "-7" in the expression (x^2+3)-(x-7) become positive?
ryzh [129]
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
5 0
3 years ago
Read 2 more answers
What is the following product? sqr root 10 x sqr root 10
DENIUS [597]

Answer:

10

Step-by-step explanation:

Note that \sqrt{a} × \sqrt{a} = a

Consider the following example

\sqrt{100} × \sqrt{100}

= 10 × 10

= 100 ← the value inside the radical, thus

\sqrt{10} × \sqrt{10} = 10

6 0
3 years ago
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