3 years ago

Choose the expression that represents “three less than seven times a number.”

Mathematics

1 answer:

tamaranim1 [39]3 years ago

3 0

Answer:

x7-3 as number is multiplied by 7 then subtracted by 3

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Select the correct answer.

Paladinen [302]

Answer:

Step-by-step explanation:

$2x^2+16x-8=0$

Simplify:

$x^2+8x=4$

Rewrite in the form $(x+a)^2=b$ :

$x^2+8x=4$

Add $4^2$ to both sides:

$x^2+8x+4^2=4+4^2$

$x^2+8x+4^2=20$

$\left(x+4\right)^2=20$

$x+4=\sqrt{20}$ or $x+4=-\sqrt{20}$

x = -4± $\sqrt{20}$

x= -4± $2\sqrt{5}$

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3 years ago

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The coordinates of two vertices of a right triangle are shown on the grid.

miss Akunina [59]

Answer:

Step-by-step explanation:

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3 years ago

-7 exponent 2 - x + 6x + x exponent 2

s2008m [1.1K]

Answer:

x²+5x-49

Step-by-step explanation:

-7² -x+6x+x²

combine like terms

-x+6x is 5x

simplify -7² is -49

now rewrite the equation

x²+5x-49

5 0

3 years ago

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Write the sum of 18 + 27 as the product of their GCF and another sum <br><br> (PLEASE HELP)

nikdorinn [45]

27
18
----
45

GCF of 45 = 15
Here is a word document on Greatest Common Factors and how to solve it.

Download docx

4 0

3 years ago

Eight hundred registered voters were asked whether they would vote yes or no on a certain measure. If 38% of those polled said y

Ivan

100%-38%= 62%
To find the decimal of 62%, we will have to divide 62 by 100 to get 0.62.

0.62(800)= 496.

Therefore, 496 people will vote no.

Hope this helps!

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3 years ago

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