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3 years ago

Pls help Zzzzzzzzzzzzzzzzzzzzzzzz

Mathematics

1 answer:

babunello [35]3 years ago

8 0

Answer:

d po yung answer

Step-by-step explanation:

sana makatulong

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What is 12 3/4 -7 7/8 fraction form

Pachacha [2.7K]

Answer I think it's 24/1 because if you solve the equation it's 24.

Step-by-step explanation:

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3 years ago

What is 18 percent of 28 dollars

bixtya [17]

If something costs $28 and is on sale for 18% off, then how much would it cost?

5.04 U.S. dollars

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3 years ago

Read 2 more answers

50 points

Leya [2.2K]

Answer:

$\frac{2}{4} inch$

Step-by-step explanation:

Step 1

List the length of the wingspan of the five butterflies

$\frac{1}{4}, \frac{1}{4}, 1, \frac{2}{4}, \frac{3}{4}$

Step 2:

The two butterflies with the shortest wingspan has a wing length of $\frac{1}{4}$ inches each.

Step 3:

Total length of the wingspan of the two butterflies with the shortest wingspan

= $=\frac{1}{4} +\frac{1}{4} \\
 = \frac{2}{4}$

Final answer:

= $\frac{2}{4} inch$

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3 years ago

Of 10 test scores, eight are less than or equal to 82. What is the percentile rank of a test score of 82?

sdas [7]

Answer:

80%

Step-by-step explanation:

Percentile rank = (number of scores lower or equal to 82 / total number of scores) * 100%

Percentile = (8 / 10) * 100%

= 0.8 * 100%

= 80%

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3 years ago

In Exercises 10 and 11, points B and D are points of tangency. Find the value(s) of x.

Lemur [1.5K]

In both cases,

$AB^2=AD^2$

(as a consequence of the interesecting secant-tangent theorem)

So we have

10.

$(4x+7)^2=(6x-3)^2$

$16x^2+56x+49=36x^2-36x+9$

$20x^2-92x-40=0$

$5x^2-23x-10=0$

$(5x+2)(x-5)=0\implies\boxed{x=5}$

(omit the negative solution because that would make at least one of AB or AD have negative length)

11.

$(4x^2-18x-10)^2=(x^2+x+4)^2$

$16x^4-144x^3+244x^2+360x+100=x^4+2x^3+9x^2+8x+16$

$15x^4-146x^3+235x^2+352x+84=0$

$(x-7)(3x+2)(5x^2-17x-6)=0\implies\boxed{x=-\dfrac23\text{ or }x=7}$

(again, omit the solutions that would give a negative length for either AB or AD)

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3 years ago