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Vlada [557]
3 years ago
13

A birthday cake is shaped like a square. The area of the square is 64

Mathematics
1 answer:
anastassius [24]3 years ago
3 0

Answer:

8 square inches. You find area by length x height. A square's sides are all of equal length. So what number x itself is 64? The answer is 8 because 8 x 8 equals 64.

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Flor tiene una papelería y vende los lápices en $12 y los bolígrafos en $20. ¿Qué expresión algebraica permite saber cuánto debe
stiks02 [169]

Answer:

c=120x+200y

Step-by-step explanation:

La expresión algebraica debería indicar que el valor total que debe cobrar Flor es igual a 10 que representa el número de bolsas por el resultado de la suma del precio de cada item por la cantidad, lo que se puede expresar de la siguiente forma:

c=10(12x+20y)

c=120x+200y

De acuerdo a esto, la expresión algebraica que permite saber cuánto debe cobrar Flor por 10 bolsas que contengan x cantidad de lápices y "y" cantidad de bolígrafos es c=120x+200y.

7 0
3 years ago
Determine the measure of arc CED. <br><br> A. 180°<br> B. 99°<br> C. 198°<br> D. 81°
Lina20 [59]

Answer:

C

Step-by-step explanation:

An angle whose vertex lies on a circle and whose sides are 2 chords of the circle is one half the measure of the intercepted arc.

arc CED is the intercepted arc, hence

arc CED = 2 × 99° = 198°

3 0
3 years ago
Brianna received an overall IQ score of 117 on the Wechsler Scale. This means that Brianna has scored approximately____________
Tresset [83]

Using the normal distribution, it is found that the correct option is:

  • D. 1; 100

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.

In this problem:

  • The mean on the Wechsler Scale is of 100, hence \mu = 100.
  • The standard deviation is of 17, hence \sigma = 17.
  • Brianna had an score of 117, hence X = 117

Then:

Z = \frac{X - \mu}{\sigma}

Z = \frac{117 - 100}{17}

Z = 1

Hence, the option d is correct.

To learn more about the normal distribution, you can check brainly.com/question/24663213

7 0
3 years ago
Erica was given $300 for her birthday and decided to put it in a savings account that earns 3.75% interest. If she makes no othe
Dimas [21]

Answer:

80,000

Step-by-step explanation:

$300÷3.75%=8,000×10=80,000

4 0
3 years ago
Read 2 more answers
Lara chose a square number. She rounds it to the nearest hundred. Her answer is 200. What are all the possible square number she
gogolik [260]
Your answer is going to be 20
4 0
3 years ago
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