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1 year ago

(a) 95% of what is 57? (b) What number is 35% of 40?

Mathematics

1 answer:

frosja888 [35]1 year ago

6 0

Answer:

a=54.15 and b=14

Step-by-step explanation:

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The angles in a triangle are in the ratio 2:3:4. Find the size of the smallest angle.

mars1129 [50]

Angles in a triangle add up to 180
2:3:4...added = 9

2/9 (180) = 360/9 = 40 <=== smallest angle
3/9 (180) = 540/9 = 60
4/9 (180) = 720/9 = 80

4 0

2 years ago

22. The product of two negative integers is the largest 2-digit number. If one of the numbers

natulia [17]

Answer:

x = -9

Step-by-step explanation:

Let unknown number = x

Largest 2-digit number = 99

x * (-11) = 99

x = 99 ÷ (-11)

x = -9

4 0

3 years ago

Read 2 more answers

A cupcake is 3 inches wide , 3 inches long , 3 inches high . How many cupcakes will fit in a box measuring 15 inches high , 7 cm

Volgvan

Answer:

23 cupcakes

Step-by-step explanation:

Volume is the key to this question;

Calculate the volume of the cupcake;

3 × 3 × 3 = 27 inches^3

Then the volume of the box;

15 × 7 × 6 = 630 inches^3

Then divide the volume of the box by the volume of the cupcake to see how many can fit in;

630 ÷ 27 = 23.3333

;Hence you can fit... 23 cupcakes

3 0

3 years ago

Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→1 1 − x + l

AfilCa [17]

$\displaystyle\lim_{x\to1}\frac{1-x+\ln x}{1+\cos5\pi x}$

Evaluating the limand directly at $x=1$ gives an indeterminate form $\dfrac00$ . Apply L'Hospital's rule once and we get

$\displaystyle\lim_{x\to1}\frac{-1+\frac1x}{-5\pi\sin5\pi x}$

Again, plugging in $x=1$ returns $\dfrac00$ . Apply the rule once more:

$\displaystyle\lim_{x\to1}\frac{-\frac1{x^2}}{-25\pi^2\cos5\pi x}=\frac1{25\pi^2}\lim_{x\to1}\frac1{x^2\cos5\pi x}$

Now, in the denominator, when $x=1$ we get $x^2\cos5\pi x=-1$ , so the limit is $-\dfrac1{25\pi^2}$ .

3 0

3 years ago

A test is normally distributed with a mean of 70 and a standard deviation of 10. Todd

Damm [24]

Answer:

negative

Step-by-step explanation:

calculating the z score by subtracting the mean and dividing by the standard deviation

(55-70)/10= -1.5

It's negative

5 0

3 years ago