3 years ago

-10(2a-3b)=-20a+30b Is what kind of property?

Mathematics

1 answer:

Tom [10]3 years ago

7 0

+ 5ab is the answer...

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Use the FOIL method to find the product below.

Marina86 [1]

The answer is B. 35x2 + 34x + 8

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2 years ago

2X minus one equals five

stepan [7]

2x-1=5
2(3)-1=5
6-1=5
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2 years ago

Read 2 more answers

How does this work?????

ankoles [38]

Answer:

x = 4 $\sqrt{5}$

Step-by-step explanation:

Since the triangle is right, solve for x using Pythagoras' identity, that is

x² = 8² + 4² = 64 + 16 = 80

Take the square root of both sides

x = $\sqrt{80}$ = $\sqrt{16(5)}$ = $\sqrt{16}$ × $\sqrt{5}$ = 4 $\sqrt{5}$ ← exact value

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3 years ago

Which equation is equivalent to <br> f(x) =-4(x+7)^2-6

Vladimir [108]

Answer:

-4x-34

Step-by-step explanation:=−4x+−28+−6

=(−4x)+(−28+−6)

=−4x+−34

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3 years ago

Find the value of x.

dimaraw [331]

Answer:

$2\sqrt{77}$

Step-by-step explanation:

Use the Pythagorean theorem. $a^{2} +b^{2}=c^{2}$

a and b are the two side lengths

c is the hypotenuse (value across from the right angle)

Plug in the values that you are given.

$a^{2} +4^{2} =18^{2}$

Solve for x

$x^{2} =18^{2} -4^{2}$

$x^{2} =308$

x= $\sqrt{308}$

$x=2\sqrt{77}$

5 0

2 years ago