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svetoff [14.1K]
3 years ago
12

Find the value of the expression below when x= 3. x2 + 5

Mathematics
2 answers:
Alborosie3 years ago
8 0

Answer:

11

Step-by-step explanation:

x is 3

2x+5

2(3)+5

6+5

11

DedPeter [7]3 years ago
3 0

Answer:

11

Step-by-step explanation:

x*2 + 5

Subtitute

3*2 + 5

6 + 5

11

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Paige and Natalie have the same ratio of green marbles in their bags of marbles. Paige has 4 green marbles and 16 total marbles.
laiz [17]
<h2><u>Answer:</u></h2>

Natalie has a total of <u>40 marbles.</u>

<u />

<h2><u>Step-by-step explanation:</u></h2>

If 4 of Paiges' marbles are green, then we would write this as the ratio

<u>4:16</u>, or <u>1:4</u>

This means that for every green marble she has, she has 4 total marbles

Therefore, if Natalie has 10 green marbles, we would multiply this by 4 to get a total of <u>40 marbles.</u>

6 0
3 years ago
On a coordinate plane, a line goes through points A (negative 4, negative 3), B (0, negative 1), C (2, 0), and D (4, 1).
denpristay [2]

Answer:

B (0, -1)

Step-by-step explanation:

Plot it on a graph and you shall see

5 0
4 years ago
Read 2 more answers
Angie and Becky each completed a separate proof to show that the measures of vertical angles AKG and HKB are equal. Who complete
Ann [662]

Answer:

Becky completed the proof incorrectly.

Step-by-step explanation:

The only difference of the two proofs, at least what I can see, is the reason for step 2. Angie claims that it is the Definition of Supplementary Angles, while Becky claims Angle Addition Postulate.

The Definition of Supplementary Angles states that m∠A + m∠B = 180°.

While the Angle Addition Postulate states that m∠A + m∠B = m∠C.

Because the context used is that  m∠AKG + m∠GKB = 180° and m∠GKB + m∠HKB = 180°, it would be using the Definition of Supplementary Angles.

So Becky is the one who is incorrect.

7 0
2 years ago
What rule describes the translation?<br> Write tule as an ordered pair
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For A (x+6), (y-2)
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3 years ago
X² + 2x-3
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Answer:

x4+7x+3

Step-by-step explanation:

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