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3 years ago

What is the value of the expression 7–3? A. –21 B. Negative Exponents C. Negative Exponents D. 343

Mathematics

1 answer:

dmitriy555 [2]3 years ago

4 0

Its not A (7-3=4 4 doesn't = -21) and it's not D (7-3=4 4 doesn't = 343)
and B & C is the same thing

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Write a fraction, less than 1 with a denominator of 6 that is greater than 3/4

guajiro [1.7K]

6>3/4... a number greater than one can be expressed as a fraction with a numerator greater than the denominator. Hope this helps...

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2 years ago

There are two mystery numbers the sum of eight times the first number and 10 times the second number is 24. The sum of seven tim

bonufazy [111]

Answer:

x = the first mystery number = 2

y = the second mystery number = 0.8

Step-by-step explanation:

Let

x = the first mystery number

y = the second mystery number

8*x + 10*y = 24

8x + 10y = 24

7*x + 10*y = 26

7x + 10y = 26

8x + 10y = 24 (1)

7x + 10y = 26 (2)

Subtract (1) from (2) to eliminate y

8x - 7x = 26 - 24

x = 2

Substitute x = 2 into (1)

8x + 10y = 24 (1)

8(2) + 10y = 24

16 + 10y = 24

10y = 24 - 16

10y = 8

y = 8/10

y = 0.8

x = the first mystery number = 2

y = the second mystery number = 0.8

8 0

2 years ago

Find the value of each trigonometric ratio. A. 15/17 B. 15/8 C. 17/8 D. 8/17

KonstantinChe [14]

B. 15/8 because you count all of it

3 0

2 years ago

Given: x + y = 15. Which of the following are ordered pairs of this equation?

Dmitry_Shevchenko [17]

(0,5)(1,4)(2,3) I got those

6 0

2 years ago

Read 2 more answers

martin pidio 1/8 de kg de clavos de 1/2 pulgada si la bascula es digital y pesa en kilogramos ¿cuantos tienes q marcar en este c

love history [14]

Martin will have to mark 0.125 on the

Let the original weight of the scale be 1kg. Hence we can say the original mark for 1kg weight is 1 that is:

1kg = 1 ................ 1

Since we are to calculate where to mark for a 1/8 kg weight, we can write;

1/8 kg = x ..................2

Divide both expressions

$\frac{1}{1/8}= \frac{1}{x}\\\\Cross \ multiply\\8= \frac{1}{x} \\x = \frac{1}{8}$

This means Martin will have to mark 0.125 on the scale.

Learn more here: https://brainly.lat/tarea/13002863

3 0

2 years ago