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3 years ago

Find the value of y when x=3. y=10-3x y=

Mathematics

1 answer:

Oliga [24]3 years ago

7 0

Y=1 I hope this helps :)

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What are the roots of y=x^2 +25

Lena [83]

Answer:

Its a i just took the test

Step-by-step explanation:

4 0

3 years ago

The first term of an AP is -7 and the ratio of the eight term to the third term is 7:1 calculate the common difference

alukav5142 [94]

Answer:

the common difference is 6.

Step-by-step explanation:

Given;

first term of an AP, a = -7

let the common difference = d

The third term is written as;

T₃ = a + 2d

The eight term is written as;

T₈ = a + 7d

The ratio of the eight term to third term = 7:1

$\frac{T_8}{T_3} = \frac{7}{1} = \frac{a+ 7d}{a + 2d} \\\\7 = \frac{a+ 7d}{a + 2d}\\\\Recall, a = -7\\\\7 = \frac{-7+ 7d}{-7 + 2d}\\\\7(-7 + 2d) = -7+ 7d\\\\-49 + 14d = -7 + 7d\\\\14d -7d = -7 + 49\\\\7d = 42\\\\d = \frac{42}{7} \\\\d = 6$

Therefore, the common difference is 6.

4 0

3 years ago

suppose tortilla chips cost 24.5 cents per ounce. what would a bag of chips cost if it contained 20 oz? Round your answer to the

Ierofanga [76]

Answer:

Step-by-step explanation:

So this is multiplication

24.5 times 20 in dollars is $4.90 if we round it than it will be 5 dollars

6 0

3 years ago

What would the first step be in solving the inequality: -y (less than or greater than sign) 136

Alex73 [517]

"-y (less than or greater than sign) 136" translates into two separate inequalities:

-y < 136 and -y > 136.

You want to solve for y in each case. To do this, multiply each inequality by "-1" and then immediately change the direction of the inequality sign.

For example: -1(-y < 136) => y > -136.

5 0

3 years ago

Evaluate 7C3<br> OA) 25<br> O B) 45<br> OC) 35<br> OD) 20

SpyIntel [72]

Answer:

C) 35

Step-by-step explanation:

$^7C_3 \\ = \frac{7!}{3!(7 - 3)!} \\= \frac{7!}{3! \: 4!} \\ = \frac{7 \times 6 \times 5 \times 4!}{3 \times 2 \times 1 \times 4!} \\ = \frac{7 \times 6 \times 5 \times 4!}{3 \times 2 \times 1 \times 4!} \\ = 35 \\ \huge \red{ \boxed{ \therefore \: ^7C_3 = 35}}$

8 0

4 years ago

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