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nadya68 [22]
3 years ago
13

Hey good morning I need help ASAP thank you guys

Mathematics
1 answer:
mafiozo [28]3 years ago
8 0

Answer:

B. x = 2.77

Step-by-step explanation:

3^x = 21

You first look for a base for 21 that is 3 to the power of something.

21 = 3^2.77

So 3^x = 2^2.77

They have the same base so

x= 2.77

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John and Sarah are each saving money for a car. The total amount of money John will save is given by the function f(x)= 60 + 5x.
natka813 [3]
Hi,
they both amount would be same  when

f(x)=g(x)

60+5x=x^2+46
x^2+46-5x=60
x^2-5x-14=0
x^2-7x+2x-14=0
(x+2)(x-7)=0

if x= weeks than x should be positive so x=7

In 7 weeks both will save same amount.
4 0
3 years ago
Solve the problem.
Alex

Answer:

0.081

Step-by-step explanation:

Given parameters:

Vertical drop  = 70ft

Horizontal distance  = 866ft

Unknown:

Slope of the rapids  =?

Solution:

Slope is the rise or vertical height divide by the horizonal distance.

  Slope  = \frac{vertical drop}{horizontal distance}

  Insert the parameters and solve;

  Slope  = \frac{70}{866}   = 0.081

8 0
3 years ago
Find the length of side x in simplest radical form with a rational denominator <br> Help please!
myrzilka [38]

Answer:

x = 6

Step-by-step explanation:

x = 3 sin(90) / sin (30)

x = 3(1)/(1/2)

x = 3 ÷ \frac{1}{2}

x = 6

8 0
3 years ago
Can someone please help me with this, it’s urgent!!
fomenos

Answer:

Step-by-step explanation:

angle 4 is congruent to angle 4 because they are alternate interior angles.

angle 5 is congruent to angle 3 because they are alternate interior angles.

angle 1+angle 2+angle 3 is equal to (=) angle 1+angle 2+angle 3

angle 1+angle 2+angle 3=180 degree(being sum of interior angles of a trianngle)

7 0
3 years ago
Which expression represents the sentence "five times a number, n"
olga_2 [115]

Answer:

5n

Step-by-step explanation:

it's 5 times N. So it's 5×N, but with Algebra you don't necessarily need to include the multiplication sign

5 0
2 years ago
Read 2 more answers
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