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3 years ago

Jared was traveling at 50 miler per hour. He traveled 140 miles. How long did it take him to get there?

Mathematics

1 answer:

Advocard [28]3 years ago

5 0

Answer:

2,8h (2h and 47 minutes aprox.)

Step-by-step explanation:

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Using the greatest common factor for the terms, how can you write 45 + 75 as a product?

seraphim [82]

the answer is c 15(3+5)

3 0

3 years ago

What is the equation of the line that has a y-intercept of -7 and is perpendicular to the line represented by the equation below

kramer

8x + 7y = 19
- 8x
7y = 19 - 8x
÷ 7
y = 2 5/7 - 8/7x
So if that line is perpendicular to the line you're looking for, then the gradient (x value/slope) is the negative reciprocal to the gradient you're looking for, which would then be 7/8. You are told it has a y intercept of -7, so your final answer is:
y = -7/8x - 7
Hope this helps!

7 0

3 years ago

2. Which trinomial below is equivalent to the square of the binomial x-5?

ExtremeBDS [4]

Answer:

2) x² - 10x + 25

Step-by-step explanation:

(x - 5)(x - 5) = x² - 5x -5x + 25

Combining like terms

x² - 10x + 25

6 0

3 years ago

What is the slope of the line shown below?<br> y=1/3x-3

krek1111 [17]

Answer:

1/3

Step-by-step explanation:

Slope is the number in front of the x

8 0

3 years ago

Televisions and monitors come in two common aspect ratios, 4:3 and 16:9 (sometimes

kati45 [8]

Answer:

The dimension of the TV = 11.2 inches × 8.4 inches

Step-by-step explanation:

Let x be the length of the TV

Let y be the width of the TV

x : y = 4:3

$\frac{x}{y} = \frac{4}{3} \\cross-multiplying\\3x = 4y \\x = \frac{4}{3} y- - - - - (1)$

From the figure attached:

using Pythagoras theorem

x² + y² = 42²

where:

$x = \frac{4}{3} y\\(\frac{4}{3}y)^2 + y^2 = 42^2\\\frac{16}{9}y^2 + y^2 = 1764\\ \frac{16y^2}{9} + \frac{y^2}{1} = 1764\\\frac{16y^2 +9y^2}{9}= 1764\\ cross-multiplying\\16y^2 + 9y^2 = 1764\\25y^2 = 1764\\y^2 = \frac{1764}{24}\\y^2 = 70.56\\y = \sqrt{70.56} \\y = 8.4\ inches\\Finding\ x:\\x = \frac{4}{3} y\\x = \frac{4}{3} \times 8.4\\ x = 1.33 \times 8.4\\x = 11.2\ inches\\\therefore\ the\ dimensions\ are\ 11.2\ inches \times 8.4\ inches$

4 0

3 years ago