All categories

2 years ago

Help me plz! 9ubiesnfhduryinwiwybv

Mathematics

2 answers:

Ugo [173]2 years ago

8 0

Answer:

-8

Step-by-step explanation:

10 -2b^2

Let b=-3

10 - 2( -3)^2

Do the exponent first

10 -2(9)

Multiply

10 -18

Subtract

-8

Alex17521 [72]2 years ago

6 0

Answer:

- 8

Step-by-step explanation:

Given

10 - 2b² ← substitute b = - 3 into the expression

= 10 - 2(- 3)²

= 10 - 2(9)

= 10 - 18

= - 8

You might be interested in

Please show work it’s due tommorow I will give 35 Brainly

SCORPION-xisa [38]

Answer:

Step-by-step explanation:Worked out on paper shown below

Also I recommended a online app called (it has wierd name but it’s helpful for algebra) mathpapa

Also I do math in pen so the last answer is messed up it’s 4c^2d and then the rest of the parentheses.Sorry for that.

5 0

2 years ago

Sam has 3x + 4 dollars saved. Tessa has saved 7x + 16 dollars. Together they

Shalnov [3]

Step-by-step explanation:

3x + 4 + 7x + 16 = 110

10x = 90

x = 9

therefore, Sam = $31 and Tessa = $79

Topic: Algebraic Equations

If you like to venture further, do check out my insta (learntionary) where I constantly post math tips! Thanks!

8 0

3 years ago

Read 2 more answers

Is 4(x+2y) and 8y+4x Equivalent

Illusion [34]

Yes.

When you use distributive property in first expression you’ll get 4x +8y. The second expression just rearranged those two terms.

8 0

2 years ago

1. De un tubo vertical cuyo radio interior es 1 mm gotea agua. Hallar el radio de las gotas en el momento de desprenderse. Hay q

Dvinal [7]

Answer:B or C

Step-by-step explanation:

I did the test

4 0

2 years ago

What is the inverse of f(x)=(x+6)2 for x≥–6 where function g is the inverse of function f? g(x)=x√−6, x≥0 g(x)=x−6−−−−√, x≥6 g(x

rosijanka [135]

Answer:

$g(x)=\sqrt{x}-6$ , x>=0

Step-by-step explanation:

$f(x)=(x+6)^2$

To find the inverse function , replace f(x) by y

$y=(x+6)^2$

Replace x with y and y with x

$x=(y+6)^2$

Solve the equation for y

take square root on both sides

$+\sqrt{x} =y+6$

Now subtract 6 from both sides

$+\sqrt{x}-6=y$

replace y with g(x)

$g(x)=\sqrt{x}-6$

7 0

3 years ago