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2 years ago

Solve with ZPP

Mathematics

1 answer:

serg [7]2 years ago

3 0

Answer:

Step-by-step explanation:

{4, 5}

{ - 1, - 7 }

{ 0, 5/7 }

{ - 1/3 , 2/5 }

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Trina said $1.05+$2.25 =$3.75 because a dollar and 2 quarters plus 2 dollars and a quarter equals 3 dollars and 3 quarters. Do y

tatuchka [14]

Answer:it is approximately 4 dollars and 6 cents

Step-by-step explanation:

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2 years ago

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Y = -2x2 + 10 y = -2x – 2

34kurt

Answer:

x = 6

y = - 14

Step-by-step explanation:

$\left \{y=-2x2 + 10y} \atop {y=-2x -2}} \right.$

-2x × 2 + 10 = - 2x - 2
x = 6
y = -2 × 6 - 2 = - 14

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2 years ago

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The line passing through (-2,5) and (2,p) has a gradient of -1/2. Fnd the value of p

makkiz [27]

Given:

The line passing through (-2,5) and (2,p) has a gradient of $-\dfrac{1}{2}$ .

To find:

The value of p.

Solution:

If a line passes through two points, then the slope of the line is:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

The line passing through (-2,5) and (2,p). So, the slope of the line is:

$m=\dfrac{p-5}{2-(-2)}$

$m=\dfrac{p-5}{2+2}$

$m=\dfrac{p-5}{4}$

It is given that the gradient or slope of the line is $-\dfrac{1}{2}$ .

$\dfrac{p-5}{4}=-\dfrac{1}{2}$

On cross multiplication, we get

$2(p-5)=-4(1)$

$2p-10=-4$

$2p=-4+10$

$2p=6$

Divide both sides by 2.

$p=3$

Therefore, the value of p is 3.

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2 years ago

Which of the following options have the same value as 30\%30%30, percent of 818181?

Nataly_w [17]

Answer:

Option B is correct = $0.3 \times 81$

Step-by-step explanation:

The complete question is: Which of the following options have the same value as 30% of 81?

Group of choices is:

(A) $\frac{30}{100}\times 81 \times 100$

(B) $0.3 \times 81$

(D) $\frac{3}{10}\times 81 \times 10$

(E) $30 \times 81$

Now, the expression given to us is 30% of 81.

Simplifying the above expression we get;

30% of 81 = $\frac{30}{100} \times 81$

= $\frac{3}{10} \times 81$ = $0.3 \times 81$

Now, we will solve each of the given options and then see which option matches with our calculation.

Option (A) is given;

$\frac{30}{100}\times 81 \times 100$ = $30 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (B) is given;

$0.3 \times 81$

This matches with our answer, so this option is correct.

Option (C) is given;

$0.03 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (D) is given;

$\frac{3}{10}\times 81 \times 10$ = $3 \times 81$

This doesn't match with our answer, so this option is not correct.

Option (E) is given;

$30 \times 81$

This doesn't match with our answer, so this option is not correct.

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3 years ago

Subtract 5a-6b+7c from 13a-4b+8c

schepotkina [342]

Answer:

im not sure but i think the anwser is its self dont take my anwser its garbadge

Step-by-step explanation:

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2 years ago