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Sphinxa [80]
3 years ago
11

Evaluate -15a (-3) for a= 2 and b=-3 A.) 5/24 B.) -5/24 C.) -1080 D.) -40/3

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0
Hhjhhhu did I need ooo 40
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how many ways can Aileen choose 2 pizza toppings from a menu of 19 toppings if each topping can only be chosen one​
alexdok [17]

Answer:

There are 342 different combinations.

Step-by-step explanation:

Ok, Aileen is choosing toppings for a pizza.

She can choose two.

There are 19 options that can be chosen once.

The first thing we need to do, is find all the "selections".

Here we have two selections:

Topping number 1

Topping number 2.

Now we need to find the number of options for each one of these selections:

Topping number 1:  Here we have 19 options.

Topping number 2:  Here we have 18 options (because one was already taken in the previous selection)

The total number of combinations is equal to the product between the numbers of options.

C = 19*18 = 342

There are 342 different combinations.

7 0
3 years ago
I don't know how to find a different angle from this. PLEASE HELP FIND X!!!! THANKS!!!
timama [110]

The intersection of the two red rays forms a set of vertical angle pairs. In such a pair, angles opposite one another have the same measure, so the angle opposite the one labeled 93 degrees also has measure 93 degrees.

The red ray on the right together with the black ray pointing directly to the right form a pair of supplementary angles, whose measures add up to 180 degrees. This means the angle adjacent to the one labeled 128 degrees has measure 180 - 128 degrees.

In any triangle, the interior angles' measures add up to 180 degrees. So we have

? + 93 + (180 - 128) = 180

? + 93 - 128 = 0

? = 128 - 93

? = 35

8 0
3 years ago
Did I get this correct? If not please help me!!!
OLga [1]

Answer:

I thinck u did get it write ....

Step-by-step explanation:

7 0
3 years ago
What is the slope of the line that passes through the points (-20, 18) and (30, 14)?
RideAnS [48]
Gradient =

Change in Y
———————
Change in X

Change in Y is 18 - 14 = 4
Change in X is -20 - 30 = -50

Therefore the gradient is 4/-50 which is then simplified to - (2/25)
7 0
2 years ago
2/5 + 1/4 + 7/10 = what's the answer ​
kotegsom [21]

Convert 2/5, 1/4 and 7/10 to fractions with like denominators.

\bf{\dfrac{2\times4}{5\times4}+\dfrac{1\times5}{4\times5}+\dfrac{7\times2}{10\times2} \ \ \to \ \ \ Multiply }

\bf{\dfrac{8}{20}+\dfrac{5}{20}+\dfrac{14}{20}    }

Since 8/20,5/20 and 14/20 have the same denominator, add their numerators to add them up.

\bf{\dfrac{8+5+14}{20} \ \ \to \ \ \ Add. }

\green{\underbrace{\red{\boxed{\purple{\boxed{\bf{\blue{\frac{27}{20}  }}}}}} \ \ \to \ \ \bf{\red{Answer}}}}

4 0
2 years ago
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