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3 years ago

Let x= −1. Evaluate the function for y. y=7.2x+3

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

7 0

Answer:

y = -4.2

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THANK YOU.

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If a starting number is 30 and it falls to 11 what % decrease is that?

jonny [76]

Answer:

The question would've given you to what number you should round up your answer.

Answer is:

Whole number:

63%

1 decimal place:

63.3%

2 decimal places:

63.33%

Exact number:

$\frac{190}{3}$ %

Step-by-step explanation:

So the starting no. = 30

Ending no. = 11

In order to evaluate the percentage of decrease we:

(Ending number/starting number) * 100

So:

$\frac{11}{30} *100 = \frac{11}{3} *10 = \frac{110}{3}%$ %

To find the Decrease percentage:

100 % - 110/3 %

= 63.333%

3 0

3 years ago

30 2/9x3= 50 5/8 plz, plz, Thanks

9966 [12]

Answer:

141.291667 or about 141

Step-by-step explanation:

4 0

3 years ago

Calculate the straight line distance between the points (-10, -7) and (-8,1).<br> G.2(B)

tia_tia [17]

Answer:

2√(17) or about 8.2462 units.

Step-by-step explanation:

We want to determine the distance between the two points (-10, -7) and (-8, 1).

We can use the distance formula. Recall that:

$\displaystyle d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

Substitute and evaluate:

$\displaystyle \begin{aligned} d &= \sqrt{((-10)-(-8))^2 + ((-7) - (1))^2} \\ \\ &=\sqrt{(-2)^2+(-8)^2} \\ \\ &= \sqrt{(4) + (64)} \\ \\ &= \sqrt{68}\\ \\ &= 2\sqrt{17}\end{aligned}$

Hence, the distance between (-10, -7) and (-8, 1) is 2√(17) units or about 8.2462 units.

4 0

3 years ago

What would x^4-10x^2+25 be equivalent to

Mademuasel [1]

Answer:

if i can get brainliest that would be great

IF Factor x4−10x2+25

x4−10x2+25

=(x2−5)(x2−5)

Answer:

(x2−5)(x2−5)

IF simplify

x4−10x2+25

There are no like terms.

Answer:

=x4−10x2+25

7 0

3 years ago

3 plus the product of 2 and h

Ket [755]

I'm pretty sure it should be 2h+3

4 0

4 years ago