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ratelena [41]
3 years ago
8

Evaluate the expression when x=-5. x² +98-6

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0
X squared=25, so.....
25 + 98 -6
25 +92
117
Maurinko [17]3 years ago
6 0
117


Explanation
-5 to the second power is 25
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Six yards of rope costs $5.50 while four yards costs $4.75
Amiraneli [1.4K]

The best option is the first one (Six yards of rope costs $5.50). It is the lowest unit cost.

<u>Step-by-step explanation:</u>

For the given question case, first we should compare the unit costs of the choices provided and evaluate the best option.

Choice 1:

Six yards of rope costs $ 5.50

            \frac{5.50 \text { dollar}}{6 \text { yard }}=0.9167\ dollar/yard

Choice 2:

Four yards costs $ 4.75

           \frac{4.75 \text { dollar}}{4 \text { yard }}=1.1875\ dollar/yard

Thus, the best choice is the first one. Because it is the lowest unit cost.

3 0
3 years ago
McDonald's has about 21000 managers and each year makes on average $39000/year, how much does McDonald's spend on managers each
Katen [24]
819,000,000 each year
8 0
3 years ago
What are the measures of ∠a, ∠b, and ∠c?
Fudgin [204]

Answer:

a should be 45

b should be 90

c should also be 45

Step-by-step explanation:

I know this because 180-135=45 for a

since c is also 45, beside c should be 135.

which means those angles are congruent.

since a triangle equals 180 degrees all together 180-45-45=90

so b is 90

correct me if im wrong

4 0
2 years ago
You have been asked to analyze the popcorn recipes of three different local theatres in order to figure out which theatre has th
vovikov84 [41]
Given that t<span>he manager of Theatre A says that they usually go through about 15 cups of popcorn kernels and about 5 cups of oil each weeknight.

Then, the ratio </span><span>value of oil to popcorn kernels for theatre A is 5 / 15 = 1 / 5.

Given that t</span><span>he manager of Theatre B says that they order 18 cups of oil and 72 cups of popcorn kernels each week.

Then, the </span>ratio value of oil to popcorn kernels for theatre B is 18 / 72 = 1 / 4.

Given that t<span>he manager of Theatre C says that their concessions use 6 cups of oil and 32 cups of popcorn kernels on a busy Saturday.

Then, the </span>ratio value of oil to popcorn kernels for theatre C is 6 / 32 = 3 / 16.
7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLIEST!!!!!
Ilya [14]

Mark the two equations below as A and B,

A: 3x+y=4

B: 2x+y=7

Because there's a y for both A and B, elimination (or linear combination, depending on the book) works well. If we add both equations we get 2y for the y terms. What if we subtracted instead. y - y = 0, and we eliminate the y terms. For subtracting, we multiply B by -1.

3x + y = 4

-2x - y = -7

Adding both equations (remember to change the signs on B) gives that 1x = -3 and so x = -3.

Now we take x = -3 and put into an original equation. Let's go into A.

3x+y=4

3 * -3 + y = 4 letting x = -3

-9 + y = 4

y = 13 adding 9 on both sides


So x = -3 and y = 13, or the ordered pair (-3, 13) - the 2nd one given - is our solution.

8 0
2 years ago
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