3 years ago

If a=20 then what is 5a

Mathematics

1 answer:

Rina8888 [55]3 years ago

5 0

If a=20 then 5a would be 100 because 5*20=100

Hope this helps!

You might be interested in

Evaluate the expression for p = -1 -38p2 - 78p

eduard

Answer:

$- 38 {p}^{2} - 78p \\ p = - 1 \\ - 38 \times { (- 1)}^{2} - 78 \times - 1 \\ - 38 + 78 \\ = 40 \\ thank \: you$

7 0

2 years ago

Read 2 more answers

Can you work out G and H for me please. preferably telling me how you did it aswell

Veronika [31]

Abd is a right angled triangle so by pythagoras we know
${g}^{2} = {11}^{2} + {13}^{2} \\ {g}^{2} = 290 \\ g = \sqrt{290} \: or \: g = 17.03cm$
and to calculate h we need to use the sine rule
$\frac{h}{ \sin(22) } = \frac{g}{ \sin(32) } \\ \frac{h}{ \sin(22) } = \frac{17.03}{ \sin(32) } \\ h = \frac{17.03}{ \sin(32) } \times \sin(22) \\ h = 12.04cm$
i hope this helps

8 0

2 years ago

Which of the following lines is perpendicular to y = -5x - 2?

kykrilka [37]

Answer: c is perpendicular to y = -5x - 2

Explanation: The slope of a perpendicular line is an opposite reciprocal of the original slope/line. (Basically switch the numerator and denominator and the sign. In this case, the slope is -5/1x. It’s opposite reciprocal is 1/5x.)

You can take a look at my notes for further clarification. Hope this helps!

5 0

2 years ago

9/15 + 7/15= ? Pls help I’m being dumb :0

Mashutka [201]

I think the answer is 1.06666666667

7 0

2 years ago

The length of a rectangle is 9 centimeters less than its width. What are the dimensions of the rectangle if its area is 112 squa

lbvjy [14]

Do 9x112 and u will get the answer

4 0

3 years ago