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Margaret [11]
2 years ago
10

Please help me ASAP!!!

Mathematics
1 answer:
DerKrebs [107]2 years ago
5 0

Answer:

Step-by-step explanation:

(a) 25/400 X 3,875 = $242.19

(b) 50/300 X 96 = 16 lamps

(c) 175/200 X 540.72 = 473.13

(d) 100/300 X 750 = 250 boys

(e) 133/200 X240= 159.6

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Bonus: In Triangle STP, the measure of <T is twice the measure of <S and the
olganol [36]

Answer:

m∠S=30°

m∠T=60°

m∠P=90°

Step-by-step explanation:

we know that

The sum of the interior angles in a triangle must be equal to 180 degrees

so

In the triangle STP

m∠S+m∠T+m∠P=180° ----> equation A

m∠T=2(m∠S) ----> equation B

m∠P=3(m∠S) ----> equation C

Solve the system of equations by substitution

Substitute equation B and equation C in equation A

m∠S+2(m∠S)+3(m∠S)=180°

Solve for m∠S

6m∠S=180°

m∠S=30°

<em>Find m∠T</em>

m∠T=2(m∠S)

m∠T=2(30°)=60°

<em>Find m∠P</em>

m∠P=3(m∠S)

m∠P=3(30°)=90°

3 0
3 years ago
Can anyone help me with Question 7? I’m not good at word problems :(
romanna [79]
You just have to find the angle whose sine is 0.1045. Use the sin-1 key on your calculator  ( make sure its set to degrees first)

m < B =  6.000 degrees to nearest thousandth
7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B9x%7D%5E%7B2%7D%20-%20%7B%28x%7D%5E%7B2%7D%20-%204%29%20%7B%7D%5E%7B2%7D%20
Alenkinab [10]

Answer:

{ x^2+3x-4}

Step-by-step explanation:

Factor top and bottom.

The numerator is a difference of two squares, and the denominator is a quadratic.

\frac{ {9x}^{2} - {(x}^{2} - 4)^{2} }{4 + 3x - {x}^{2} }

= \frac{ (3x+x^2-4)(3x-x^2+4) }{(1+x)(4-x)}

= \frac{ (x-1)(x+4) (1+x)(4-x) }{(1+x)(4-x)}

If x does not equal -1 and does not equal 4, we can cancel the common factors in italics to give

= { (x-1)(x+4)}

= { x^2+3x-4}

3 0
2 years ago
Read 2 more answers
Points
liq [111]

Answer:

[x-h]^2 + [y-k]^2 =r^2

Step-by-step explanation:

Let x and y be an arbitrary point along the circle

The equation of the circle is given as:

[x-h]^2 + [y-k]^2 =r^2

3 0
3 years ago
Alessdaiwastaken pls answer this
konstantin123 [22]

Answer:

udhsvdudydjdgsgsjgdyxnd

5 0
3 years ago
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