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3 years ago

Simplify the polynomial, then evaluate for x = 2 . x + 3x ^ 2 + 2x - 3 - 4x ^ 2 + 6

Mathematics

1 answer:

ELEN [110]3 years ago

8 0

Answer:

-x^2+3x+3

Step-by-step explanation:

if the evaluated answer is correct (but my answer above is correct) it would be -4+6+3 then the answer would be 5 but I am not sure

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Charles is 20% heavier than Edith. If Charles weighs 60kg, what is Edith's weight?

ddd [48]

Charles' weight = Edith's weight + 20% of Edith's weight

We'll use a variable to represent Edith's weight, x.

The decimal form of 20% is 0.2.

60 = x + 0.2x

60 = 1.2x

x = 50

Edith's weight is 50kg.

Hope this helps!

4 0

2 years ago

What is the measure of RST?

kumpel [21]

Answer:

A. $m\angle RST=62^{\circ}$

Step-by-step explanation:

We have been given a diagram. We are asked to find the measure of angle RST.

We can see that angle RST is formed by intersecting chords inside the circle, so its measure would be half the sum of intercepted arcs as:

$m\angle RST=\frac{\widehat{RT}+\widehat{PQ}}{2}$

$m\angle RST=\frac{77^{\circ}+47^{\circ}}{2}$

$m\angle RST=\frac{124^{\circ}}{2}$

$m\angle RST=62^{\circ}$

Therefore, the measure of angle RST is 62 degrees.

6 0

4 years ago

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Write an algebraic expression for each verbal expression “Thirty percent of the green house flowers are added to 25 ferns for th

topjm [15]

Answer:

reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

have fun :)

7 0

4 years ago

Which operation should be performed first according to the order of operations?

timama [110]

The answer is D because you have to sneer what is in the parentheses first

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4 years ago

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How do you solve x+2=-29

Levart [38]

Answer:

x=-31

Step-by-step explanation:

Get x by itself by subtracting 2 from both sides. -29-2=-31.

5 0

4 years ago

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