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muminat
3 years ago
8

Evaluate each expression. Show step by step 5(4-1)

Mathematics
2 answers:
djverab [1.8K]3 years ago
5 0

Answer:

15

Step-by-step explanation:

5x4=20

5x-1=-5

20-5=15

levacccp [35]3 years ago
5 0

Answer:

15

Step-by-step explanation:subtract 4-1 which is 3 and then you multiply 5x3 and it equals 15

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URGENT!!!!!!!! PLEASE HELP ASAP TIMED!!!!!!!!!!!!!!! HELP!!!!!!!!!!!!!!!!!
rodikova [14]

Answer:

x = 18 and y = 6√10

Step-by-step explanation:

First using pythagoras theorem on the small triangle

h² = 6² + 2²

h² = 36 + 4

h² = 40

h= √40

h = √4 * 10

h = 2√10

Using the similarity theorem;

y/2√10 = 6/2

y/√10 = 6

y = 6√10

To get x we will use the pythagoras theorem

y² = x²+6²

(6√10)² = x² + 36

360 = x² + 36

x² = 360 - 36

x² = 324

x = 18

Hence x = 18 and y = 6√10

5 0
3 years ago
Which goes where? I will be giving brainliest. :)
IrinaK [193]
First One is the bottom one on the first column.
Second one is the top one on the first column.

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8 0
3 years ago
Jairo walked 4/10 mile on Monday. He
elena-14-01-66 [18.8K]

Answer:

he walked 1 mile

Step-by-step explanation:

we find the common denominator which is 10. 3/5=6/10

6/10+4/10=10/10 or 1 mile

8 0
3 years ago
While testing a new pesticide, an agricultural scientist uses two functions to predict the yields of two same-sized potato farms
Pepsi [2]

Answer:

A. h(x)= -5.86x^2 + 23.37x + 34

Step-by-step explanation:

If the scientist uses the same amount of pesticide on the two farms then the x's of the functions are the same.

Then, the combined yield h(x) of the two farms is just the yield of the first farm plus the yield of the second farm:

h(x)=f(x)+g(x).

Now, since

f(x)= -2.43x^2+10.37x+9

and

g(x)= -3.43x^2+13x+25,

then

h(x)= (-2.43x^2+10.37x+9)+(-3.43x^2+13x+25)

we add the coefficients of the  corresponding terms to get:

h(x)= (-2.43x^2-3.43x^2)+(10.37x+13x)+(9+25)

\boxed {h(x)=-5.86 x^2 + 23.37 x + 34.}

Which is choice A.

4 0
3 years ago
Which expressions have an estimated quotient of 200? Select all that apply.
marta [7]

Answer:

E

                                       

                                             

Hope it helps!                    

3 0
3 years ago
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