2 years ago

Can someone please help me on this

Mathematics

1 answer:

Naddik [55]2 years ago

7 0

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A a local TV station runs 7 ads every hour. How many ads will it run in 7 hours?

Svetllana [295]

49 because you multiply 7x7

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2 years ago

Consider the expression. (StartFraction 2 m Superscript negative 1 baseline n Superscript 5 Baseline Over 3 m Superscript 0 Base

suter [353]

Answer:

The correct option is option (3) 4 ÷ 25.

Step-by-step explanation:

The expression in terms of m and n is:

$F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}$

Exponent rule of division:

$a^{x}\div a^{y}=a^{x-y}$

Compute the value of the expression for m = -5 and n = 3 as follows:

$F(m,n)=[\frac{2m^{-1}n^{5}}{3m^{0}n^{4}}]^{2}$

$F(-5,3)=[\frac{2\csdot (-5)^{-1}\cdot (3)^{5}}{3\cdot (-5)^{0}\cdot (3)^{4}}]^{2}$

$=\{\frac{2}{3}\times [(-5)^{-1-0}\times (3)^{5-4}}]\}^{2}\\\\=\{\frac{2}{3}\times \frac{-1}{5}\times 3\}^{2}\\\\=\{-\frac{2}{5}\}^{2}\\\\=\frac{4}{25}$

Thus, the correct option is option (3) 4 ÷ 25.

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2 years ago

Read 2 more answers

Put the following equation of a line into slope-intercept form, simplifying all fractions. 15x - 3y = 15

MaRussiya [10]

Slope= 5
X-intercept= -5/5 = -1
Y-intercept= 5/1 = 5.0000000

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2 years ago

2(38-4x) = 58-5x Answer

OleMash [197]

Answer:

x=6

Step-by-step explanation:

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Josha had 20 dollors to spend on three gifts he spent 11 7/10 on gift a and 4 2/5 dollores on gift b how muck money did he have

zimovet [89]

Answer:

3 dollars 90 cents

Step-by-step explanation:

20 - 11.70 = 8.30

8.30 - 4.40 = 3.90

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2 years ago