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3 years ago

Please answer this question fast in two minutes

Mathematics

1 answer:

almond37 [142]3 years ago

8 0

Answer:

∠CGA or ∠DGF

Step-by-step explanation:

Supplementary angles add up 180°

∠CGD + ∠CGA = 180°

∠CGD + ∠DGF = 180°

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The ratio of teachers to students on a field trip is 2:13. If there are 180 people on the trip, how many of the people are teach

zlopas [31]

Answer:

Step-by-step explanation:

sum of ratios=2+13=15

Number of teachers=(2/15)*180=24

Number of students=180-15=165

8 0

3 years ago

Please help I’m struggling on this question.

timofeeve [1]

Answer: $\frac{2(y^2-4y+40)}{(y-8)(y+4)}$

Step-by-step explanation:

To solve this problem, we want to make sure the denominators are the same on both fractions. Once they are equal, we can dd them together.

$\frac{y+4}{y-8} +\frac{y-8}{y+4}$ [multiply first fraction by y+4 and second by y-8]

$\frac{(y+4)(y+4)}{(y-8)(y+4)} +\frac{(y-8)(y-8)}{(y-8)(y+4)}$ [distribute by FOIL]

$\frac{y^2+8y+16}{(y-8)(y+4)} +\frac{y^2-16y+64}{(y-8)(y+4)}$ [add numerator]

$\frac{y^2+8y+16+y^2-16y+64}{(y-8)(y+4)}$ [combine like terms]

$\frac{2y^2-8y+80}{(y-8)(y+4)}$ [factor out 2 from numerator]

$\frac{2(y^2-4y+40)}{(y-8)(y+4)}$

Now we know that $\frac{2(y^2-4y+40)}{(y-8)(y+4)}$ is the factored form after adding.

5 0

3 years ago

Solve for the total cost. Retail price: $12.95; discount rate: 15%; sales tax rate: 7%

Alchen [17]

Answer: $10.24

Step-by-step explanation: 12.95 * 0.15 = 1.94 12.95 - 1.94 = 11.01

11.01 * 0.07 = .77 11.01 - 0.77 = 10.24

8 0

3 years ago

Which of the following is a monomial?<br> ОА.<br> O B. 2049 -7%<br> O c. 20x²<br> O D. 118-9

meriva

The answer to this question is C

6 0

4 years ago

Can someone help me on this ? its Algebra 1 on exponents

Svetradugi [14.3K]

The volume of a rectangular prism is its length times width times height, or algebraically, $V=lwh$ . You may be used to computing volume with numbers, but remember, a variable is a stand-in for a number. So you can solve this in the same way. Substitute $l=x, w= \frac{x}{2},h= \frac{x}{3}$ into the formula for volume. You get $(x)( \frac{x}{2})( \frac{x}{3} )$ , and you multiply these factors together. As you would with ordinary fractions, multiply the numerators and denominators across. You get $\frac{(x)(x)(x)}{(1)(2)(3)} = \frac{x^3}{6}$ . It seems that the book wants you to simplify by bringing the 6 up to the denominator. Recall the rule $x^{-n}= \frac{1}{x^n}$ , if n is non-negative. The opposite applies so that $\frac{1}{6} = 6^{-1}$ . For your final answer, you write $6^{-1}x^3$ . This corresponds to answer choice B.

3 0

4 years ago