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mezya [45]
3 years ago
11

Which equation has one solution? x^2= 1 X^2= -16 x² = 0 x² = 12

Mathematics
1 answer:
8_murik_8 [283]3 years ago
3 0

Answer:

I think it is x^2 = 0

Step-by-step explanation:

because -1^2 =1 also with 1^2

you can't get a - 16 because a negative changes to a positive when squared

and nothing squared equals 12

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what is the slope-intercept form for a line that has a slope of -4/5 and passes through points (0,7)?
drek231 [11]

\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{7})~\hspace{10em} slope = m\implies -\cfrac{4}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-7=-\cfrac{4}{5}(x-0) \\\\\\ y-7=-\cfrac{4}{5}x\implies y=-\cfrac{4}{5}x+7

4 0
3 years ago
A restaurant adds a 20% tip to the bills of parties of 6 or more people. Suppose a server waits on five such tables. The bill
castortr0y [4]

Answer:

$218.70

Step-by-step explanation:

You need to first convert the percentage to the decimal.

20% = 0.2

Now, you need to find 20% of each bill by multiplying each bill by 0.2.

0.2(185.45) + 0.2(205.20) + 0.2(195.05) + 0.2(245.80) + 0.2(262.00)

Because of the distributive property, you can add up the bills and multiply the sum by 0.2.

0.2(185.45 + 205.20 + 195.05 + 245.80 + 262.00)

0.2(1093.50)

218.7

The waiter made $218.70 in tips.

4 0
3 years ago
Here are the population figures of five different cities. 371,265 635,155 226,710 468,920 724,435 What is the difference between
Aleksandr-060686 [28]

Answer:

497,725

just subtract smallest from largest to get the difference

724,435 - 226,710

4 0
3 years ago
Read 2 more answers
Jordan already knew 2 appetizer recipes before starting culinary school, and he will learn 2 new appetizer recipes during each w
kirill115 [55]

Answer:

w=2r

r= w/2

r- w/2 = 0

w -2r= 0

Step-by-step explanation:

Let w be the number of weeks and r be the number of recipes learnt . So he will learn 2 recipes each week .Equating gives

w=2r

when w= 1

w= 2(1) = 2

For 1st week 2 recipes are learned

when w= 2

w= 2( 2) = 4

For 2nd week 4 recipes are learned.

or

when r= 2

r= w/2

r =2/2  = 1  one  recipe is learned in half of the week  

r- w/2 = 0

or

w -2r= 0

6 0
3 years ago
Brett bought 7.95 pounds of potatoes and 0.83 pounds of carrots. How many pounds of vegetables did he buy in all?
ycow [4]

Answer: 8.78

Step-by-step explanation:

Because both potatoes and carrots can be classified as vegetables, this problem is simple addition of 7.95 and 0.83, or 8.78.

Hope it helps :)

4 0
2 years ago
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