All categories

3 years ago

Substitute t=3 and t=5 to determine if the two expressions are equivalent.

Mathematics

1 answer:

motikmotik3 years ago

4 0

Answer:

because both sides are equal when substituted by 3 & 5

You might be interested in

HELP ME LOOK AT THE PHOTO

Assoli18 [71]

Answer:

The answer to the question provided is 7.

Step-by-step explanation:

$7x + 9 = 8x + 2 \\ \frac{ - 8x \: \: \: \: = - 8x}{ - 1x + 9 = 2 } \\ \frac{ \: \: \: \: \: \: \: \: - 9 = - 9}{ \frac{ - 1x}{ - 1} = \frac{ - 7}{ - 1} } \\ x = 7$

[I apologize if this isn't the answer]

6 0

3 years ago

A grocer wants to mix nuts costing 5.00 per kilogram with nuts costing 8.00 per kilogram to make a 10 kilogram mixture for 6.00

vladimir1956 [14]

Step-by-step explanation:

let E be weight of expensive nuts, C be cheaper nuts

E*8+C*5=10*6 value equation

E+C=10 mass equation

Solve it by any method, I will do determinants

Det: 8-5=3

E= (60-50)/3=10/3 =3.33 lb

C= 80-60 /3=20/3 =6.66 lb

8 0

2 years ago

Read 2 more answers

What is the best approximation of the surface area of this right cone

Tatiana [17]

Use the formula for the surface area of a right cone:

$\sf A=\pi rs+\pi r^2$

Where 'r' is the radius and 's' is the slant height, plug in what we know(use 3.14 to approximate for pi):

$\sf A=(3.14)(12)(15)+(3.14)(12)^2$

Multiply and simplify exponent:

$\sf A=565.2+(3.14)(144)$

Multiply:

$\sf A=565.2+452.16$

Add, round to the nearest whole number:

$\boxed{\sf A\approx 1017~cm^2}$

4 0

3 years ago

What is 4^12 x 125^7? Express your answer in scientific notation

lianna [129]

Answer:

8×10^21

Step-by-step explanation:

3 0

3 years ago

For brainiest:):):):):):):)

exis [7]

I used 3.14 for pi to solve easier.

6. 6.28

7. 21.98

8. 94.2

6 0

3 years ago