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Nutka1998 [239]

2 years ago

6

I also need help figuring this out - 2x^2 -7x - 15

1 answer:

Alexus [3.1K]2 years ago

3 0

x = ±√ 7.500 = ± 2.73861

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Reduce then calculate 7/8 x 4/15 x 3/7 = ? <br><br> Can you help?

Zepler [3.9K]

since this is a multiplication, all the numerators are just factors of the product numerator and all denominators are just factors of the product denominator, so we can simply reorder them some, without changing the product.

$\bf \cfrac{7}{8}\times \cfrac{4}{15}\times \cfrac{3}{7}\implies \cfrac{7}{7}\times \cfrac{4}{8}\times \cfrac{3}{15}\implies \cfrac{1}{1}\times \cfrac{1}{2}\times \cfrac{1}{5}\implies \cfrac{1\cdot 1\cdot 1}{1\cdot 2\cdot 5}\implies \cfrac{1}{10}$

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2 years ago

What is the slope of the line that passes through the following points:<br> (4, -3), (-5, 10)

umka21 [38]

Answer:

-9/13

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

10-(-3)/-5-4

13/-9

-9/13

Best of Luck!

5 0

2 years ago

Write 2.385 as a fraction or mixed number in simplest form.

never [62]

2.385 can be written as 2385/1000, which is equivalent to 477/200. As a mixed number it is writte as 2 77/200. Hope I helped!

5 0

3 years ago

Renee can see a 25 square foot quilt in 16 hours. Genera can sew the same size quilt in 12 hours. How long would it take them to

scoundrel [369]

28 hours because they are too long from each other

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3 years ago

Read 2 more answers

choose the equation below that represents the line that passes through the point (−2, −1) and has a slope of 5. (5 points) y − 1

Rus_ich [418]

Equation of a line;
y=mx+c
m=5
y=5x+c
Replacing for x and y using point (-2, -1)
-1=5(-2)+c
-1=-10+c
c=-1+10
c=9
y=5x+9

4 0

3 years ago