3 years ago

PLEASE HELP ME I NEED THE ANSWER FAST.

Mathematics

1 answer:

Westkost [7]3 years ago

5 0

Answer:

126

Step-by-step explanation:

9 by 10 is 90

9 by 4 is 36

90+36= 126

Hope this helps <3

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What is the product (9t-4)(-9t<br> -4)

r-ruslan [8.4K]

Hey Tro2,

Lets find the product of your equation together,

The question we are encountering is : What is the product (9t-4)(-9t<span>-4)?

Lets simplify this step by step, shall we.

$\left(9t-4\right)\left(-9t-4\right)$ : Equation

$\mathrm{Distribute\:parentheses\:using}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$ .

Where : $a=9t,\:b=-4,\:c=-9t,\:d=-4$ .

This leads to $9t\left(-9t\right)+9t\left(-4\right)-4\left(-9t\right)-4\left(-4\right)$ .

Now we have to $\mathrm{Apply\:minus-plus\:rules}$ .

</span>Where: $-\left(-a\right)=a,\:\:\:\:+\left(-a\right)=-a$

$-9t\cdot \:9t-9t\cdot \:4+4\cdot \:9t+4\cdot \:4$

$=-81t^2+16$

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4 years ago

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Hey Please help i’m taking a test . i will mark you brainlist. thanks

mart [117]

Answer:

x=56

Step-by-step explanation:

72+89+99+3x+2x=540

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3 years ago

How do you solve this problem? 4a-3b+7a=

Inessa05 [86]

In this problem, you combine the like terms...

4a - 3b + 7a

4a and 7a are like terms so you add them together.

4a + 7a = 11a

So, the answer is: 11a - 3b

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In the figure below, a circle is inscribed in a

Galina-37 [17]

9514 1404 393

Answer:

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Step-by-step explanation:

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