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3 years ago

HELP ASAP PLS PLS PLS !

Mathematics

1 answer:

Maslowich3 years ago

6 0

Answer:

(b) the unknown angle is 80°

Step-by-step explanation:

The unkown angle is:

[2(x-10)]°

Substituting "x" by 50 (part a)

[2(50-10)]°=[2(40)]°=80°

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WILL GIVE BRAINLIST PLEASE HELP

Harlamova29_29 [7]

Good evening ,

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Answer:

12×11×10×9×8×7= 665 280 ways

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Step-by-step explanation:

The first inquiry has 12 ways

The 2nd inquiry has 11 ways

The 3rd inquiry has 10 ways

The 4th inquiry has 9 ways

The 5th inquiry has 8 ways

The 6th inquiry has 7 ways

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3 years ago

4. Which of the following equations represent

den301095 [7]

Answer:

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3 years ago

5x^(-2)-17x^(-1)+6<br> i’m so confused pls help<br> will give brainliest

laila [671]

It's a quadratic equation in disguise. If you let $y=x^{-1}$ , then $y^2=x^{-2}$ , and we can rewrite the equation as

$5y^2-17y+6=0$

Solve for $y$ however you like; we get $y=\dfrac25$ and $y=3$ .

But we want to solve for $x$ , so we have

$y=x^{-1}=\dfrac25\implies x=\dfrac52$

$y=x^{-1}=3\implies x=\dfrac13$

5 0

3 years ago

Find the surface area of a cubical planter<br> measuring 30 inches on a side.

Snezhnost [94]

30 x 30 = 900

This is the surface area of one side

900 x 6

Multiply by 6 to get the surface area of all 6 sides of the cube

900 x 6 = 5400

3 0

3 years ago

Write an addition problem that has 9/10 as the sum

kicyunya [14]

There are a number of different problems that you could do that will give you an outcome of 9/10
For example, 1/2 and 2/5 add up to 9/10.
3/10 and 6/10 also add up to 9/10.

Find the sum of 7/10 and 1/5
Find the sum of 7/20 and 11/20
Find the sum of 1/2 and 3/10 and 1/10
Find the sum of 1/5 and 2/5 and 3/10

Hope this helps :)

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3 years ago