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krok68 [10]
4 years ago
13

Please help me i beg you!!! 30 points!!!

Mathematics
2 answers:
Westkost [7]4 years ago
6 0
The third is because the prove is x = fifteen and if a number is next to a letter, it means multiply, sorry I could only do one.
mash [69]4 years ago
3 0
I hope this helps you

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An infant is 32.625 inches long write this as a common fraction
elena-14-01-66 [18.8K]
32.625 is the same as 32 and 5/8 .
8 0
3 years ago
Read 2 more answers
Karly buys a model car for $64. Then she spends 2 times as much on supplies to build the model car. How much does Karly spend al
liberstina [14]

Answer:

192

Step-by-step explanation:

Supplies = 2 model cost

               = 2*64 = 128

Total cost = model + supplies

                 = 64 + 128

                  =192

7 0
3 years ago
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Tan^4x-sec^4x=1-2 sec^2(x)<br> verify
olga nikolaevna [1]
Tan⁴x - sec⁴x = 1 - 2sec²x

tan²x = sec²x - 1

tan⁴x - sec⁴x = 1 - 2sec²x
(tan²x)² - sec⁴x = 1 - 2sec²x
(sec²x - 1)² - sec⁴x = 1 - 2sec²x

(sec²x)² - 2 * sec²x + 1 - sec⁴x = 1 - 2sec²x
sec⁴x - 2 sec²x + 1 - sec⁴x = 1 - 2sec²x

sec⁴x can be cancelled:
- 2 sec²x + 1 = 1 - 2sec²x

1 - 2sec²x = 1 - 2sec²x
6 0
3 years ago
I legit do not know which it is.
nexus9112 [7]

Given:

The inequality is

c\leq 7

Where, c is the number of cars in the parking lot.

To find:

The graph for the given inequality.

Solution:

We have,

c\leq 7

Here, the value of c can be any real number less than or equal to 7. But c is the number of cars, so c must be a non-zero integer.

Since, all the non-zero integer values less than or equal to 7 are included in the solution set, therefore, c = 0,1, 2,3,4, 5,6,7.

In the graph of the given inequality, there are close circles on  0,1, 2,3,4, 5,6,7 as shown in option D.

Therefore, the correct option is D.

4 0
3 years ago
1. Ana was washing dishes at the end of her shift at a restaurant. She washed 30 plates from 7:30 to 7:35. When she finishes was
irga5000 [103]
A)

since she washed 30 plates in 5 mins (7:30 to 7:35) the ratio was 5:30 or in simplest form 1min:6plates

This means she washes 6 plates a min and thus from 7:15 to 7:38 (23 mins) she washes:

6X23 = 138 plates

b)

L - plates left
T- total plates
t - time(mins)

"L = T - 6x"
This is because she washes 6 plates a min
7 0
3 years ago
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