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Dafna1 [17]
3 years ago
12

What is 69 + 08 -8 = b

Mathematics
1 answer:
stiv31 [10]3 years ago
7 0
B=69
Is the answer,,
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Can someone pls help need it ASAP<br> :)<br> it is not <br> x=-13.4, y=-3.2
IRINA_888 [86]

Answer:

x = -9

y = 2

Step-by-step explanation:

x + y = -7   then x = -y - 7

-x + 4y = 17

substitute for x:

-(-y - 7) + 4y = 17

reduce:

5y = 10

y = 2

x = -2 - 7

x = -9

check:

-9 + 2 = -7

-7 = -7

-(-9) + 4(2) = 17

17 = 17

8 0
3 years ago
Solve the following problems:
lorasvet [3.4K]

Answer:

The measure of side MO is 8 unit

Step-by-step explanation:

Given as :

In the Triangle ΔMOP ,

∠P = 90°

∠M = 60°

The perimeter of  ΔMOP = 12 + 4√3

Now, From figure , in Triangle ΔMOP

∠O = 180° - ( ∠P + ∠M )

or, ∠O = 180° - ( 90° + 60° )

or,  ∠O = 180° - 150°

∴ ∠O = 30°

<u>Now, from Triangle</u>

Sin 90° = \dfrac{\textrm perpendicular}{\textrm hypotenuse}

Or, Sin 90° = \dfrac{\textrm OP}{\textrm OM}

Or,  \dfrac{\textrm OP}{\textrm OM} = 1

Again

Sin 60° = \dfrac{\textrm perpendicular}{\textrm hypotenuse}

Or, Sin 60° = \dfrac{\textrm OP}{\textrm OM}

Or,  \dfrac{\textrm OP}{\textrm OM} = \dfrac{\sqrt{3} }{2}

Similarly

Sin 30° = \dfrac{\textrm base}{\textrm hypotenuse}

Or, Sin 30° = \dfrac{\textrm PM}{\textrm OM}

Or,  \dfrac{\textrm PM}{\textrm OM} = \frac{1}{2}

So, The ratio of the sides as

PM : MO : OP = 1 : 2 : \sqrt{3}

Let  PM = x

MO = 2 x

OP = x\sqrt{3}

Now, from question

The perimeter of triangle ΔMOP = 12 + 4√3

I.e, The sum of sides of triangle ΔMOP = 12 + 4√3

or, PM + MO + OP = 12 + 4√3

or, x + 2 x +  x\sqrt{3} = 12 + 4√3

or, 3 x  +  x\sqrt{3} = 12 + 4√3

Or, x ( 3 +\sqrt{3} ) = 4 ( 3 +\sqrt{3} )

Now, equating both side we get

x = 4

So, The measure of side MO = 2 x

I.e The measure of side MO = 2 × 4 = 8 unit

Hence The measure of side MO is 8 unit   Answer

5 0
3 years ago
Question 10(Multiple Choice Worth 1 points) (06.01 LC) Choose the polynomial that is written in standard form.
Svetach [21]

Answer:

  −3x^8 + 9x^2 + 10x

Step-by-step explanation:

A polynomial is in standard form when the exponents of the variable decrease left to right. The only given expression in that form is ...

  −3x^8 + 9x^2 + 10x

7 0
3 years ago
Round 2.12747677748 to the nearest ten-thousandth.
Gwar [14]

Answer:

2.1275 is 2.12747677748 rounded to the nearest ten-thousandth.

Step-by-step explanation:

Since the hundred-thousandth place is 5 or above, we would round the ten-thousandths place up. THis makes the number 2.1275.

8 0
2 years ago
The figure shows a barn that mr fowler is building for his fame
sdas [7]
Where is the figure KingBroski?
3 0
3 years ago
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