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2 years ago

Multiply:

Mathematics

2 answers:

hammer [34]2 years ago

8 0

Answer:

$2\times \left(-21\right)\times \:7$

PEMDAS order of operations:

$2\times \left(-21\right)=-2\times \:21=-42$

$=-42\times \:7$

$=-294$

D) -294 is your answer

OAmalOHopeO

umka2103 [35]2 years ago

5 0

Use pemdas order & that’ll get you to your answer which is D) -294

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What is thales theory ?

musickatia [10]

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2 years ago

Find the value of 2 over 3 divided by 6

iragen [17]

Answer:

$\frac{1}{9}$

Step-by-step explanation:

$\frac{2}{3}$ ÷ 6

leave the fraction, change division to multiply, turn 6 upside down

= $\frac{2}{3}$ × $\frac{1}{6}$ ( cancel 2 and 6 by 2 )

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2 years ago

Read 2 more answers

In a triangle the first angle is 10 degrees more than the second angle. The third angle is equal to the sum of first 2 angles .

timurjin [86]

First angle= x+10
Second angle = x
Third angle = x+x+10 or 2x+10

X+10+x+2x +10=180
4x+20=180
Subtract 20 from both sides
4x=160
Divide both sides by 4
X=40
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Second angle=40
Third angle =90

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2 years ago

X2 - 49 = 0 solve for x

Bogdan [553]

x^2 - 49 = 0

Add 49 to both sides:

x^2 = 49

Take the square root of both sides:

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2 years ago

Solve the system using substitution y=2x+10 y=x+8

kvv77 [185]

Answer:

x = -2

Step-by-step explanation:

x+8 = 2x +10

-2x + x = 10-8

-x = 2

divide both side by -1

answer -- x = -2

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2 years ago