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Katyanochek1 [597]
3 years ago
10

Hey what’s Twice the sum of a number and 3?

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0
2x+3 is the answer I believe
tangare [24]3 years ago
3 0
I think it is (x+3)2
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Please help me please ​
Lubov Fominskaja [6]

Answer:

(x+4)+(2x)

Step-by-step explanation:

6 0
3 years ago
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A statue is mounted on top of a 21 foot hill. From the base of the hill to where you are standing is 57feet and the statue subte
AleksandrR [38]

Please find the attached diagram for a better understanding of the question.

As we can see from the diagram,

RQ = 21 feet = height of the hill

PQ = 57 feet = Distance between you and the base of the hill

SR= h=height of the statue

\angle SPR=Angle subtended by the statue to where you are standing.

\angle x=\angle RPQ= which is unknown.

Let us begin solving now. The first step is to find the angle \angle x which can be found by using the following trigonometric ratio in \Delta PQR :

tan(x)=\frac{RQ}{PQ} =\frac{21}{57}

Which gives \angle x to be:

\angle x=tan^{-1}(\frac{21}{57})\approx20.22^{0}

Now, we know that\angle x and \angle SPR can be added to give us the complete angle \angle SPQ in the right triangle \Delta SPQ.

We can again use the tan trigonometric ratio in \Delta SPQ to solve for the height of the statue, h.

This can be done as:

tan(\angle SPQ)=\frac{SQ}{PQ}

tan(7.1^0+20.22^0)=\frac{SR+RQ}{PQ}

tan(27.32^0)=\frac{h+21}{57}

\therefore h+21=57tan(27.32^0)

h\approx8.45 ft

Thus, the height of the statue is approximately, 8.45 feet.

3 0
3 years ago
mya average 86 points on five tests. what would she have to score on the sixth test to bring her average up by one point
Ray Of Light [21]

Answer:

The answer is 88.

She would have to score 88

Step-by-step explanation:

86 + 88 = 174

174 ÷ 2 = 87

4 0
3 years ago
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Factor completely. y^2+6y+8
Hunter-Best [27]
(Y+4)(y+2) is this what it supposed to look like? Cause I don’t really remember.
6 0
2 years ago
Please help me please
MissTica

Answer:

not all of them are proportional because they do not all equal the same.

Step-by-step explanation:

6 0
2 years ago
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