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3 years ago

78 divided by 21?:-:

Mathematics

2 answers:

den301095 [7]3 years ago

8 0

Answer:

3.714

Step-by-step explanation:

78/21 is 3.71428571429 but you can round that to 3.714

MA_775_DIABLO [31]3 years ago

4 0

Answer:

3.7 or 3.71428571429

Step-by-step explanation:

You might be interested in

Audra and Darcy both play softball. Audra started the season with 5 home runs and is

Arte-miy333 [17]

Answer:

No Solutions

Step-by-step explanation:

We have to create an equation to be able to solve this problem.

Let's let x = the # of home runs

The equation that helps us solve this is 5 + 1x = 10 + 1x

First, we have to subtract 1x from each side (always subtract the variable first before the constant, math rule)

This brings us to 5=10 because the x's cancel each other out.

You probably look at this saying, wait, this isn't right, and you would be correct

Since this equation isn't true, it is No Solutions

No Solutions mean there is no answer to the problem, it is impossible to solve.

So, our final answer is No Solutions

Hope this helps, have a great day! :)

4 0

2 years ago

Help me with these math questions.

Olegator [25]

graph A

no x-intercept

no y-intercept

H.A is y = 5

V. A. is x = 0

*****************************************

Answer: $\frac{150}{31}$

<u>Step by step explanation:</u>

log₆(5x + 6) - log₆(x - 4) = 2

log₆ $(\frac{5x+6}{x-4})$ = 2

$(\frac{5x+6}{x-4})$ = 6²

$(\frac{5x+6}{x-4})$ = 36

5x + 6 = 36(x - 4)

5x + 6 = 36x - 144

6 = 31x - 144

150 = 31x

$\frac{150}{31}$ = x

**********************************************************

Answers:

a. (-1, -5)
b. up
c. x = -1
d. $\frac{-2+\sqrt{15}}{3} and\frac{-2-\sqrt{15}}{3}$
e. -2
f. see attachment
g. domain (-∞, ∞) range [-5, ∞)

<u>Explanation:</u>

f(x) = 3x² + 6x - 2

a=3 b=6 c=-2

x = $\frac{-b}{2a} =\frac{-6}{2(3)} = \frac{-6}{6} = -1$

Axis Of Symmetry: x = -1

f(-1) = 3(-1)² + 6(-1) - 2

= 3 - 6 - 2

= -5

Vertex: (-1, -5)

x = $\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}$

= $\frac{-6+/-\sqrt{6^{2}-4(3)(-2)}}{2(3)}$

= $\frac{-6+/-\sqrt{36+24}}{6}$

= $\frac{-6+/-\sqrt{60}}{6}$

= $\frac{-6+/-2\sqrt{15}}{6}$

= $\frac{-2+/-\sqrt{15}}{3}$

x-intercepts: $\frac{-2+/-\sqrt{15}}{3}$

6 0

3 years ago

Eight times a number increased by 9 exceeds 7 times the number by 15. Find the number.

Alborosie

Turn it into math terms bit by bit. let x be "a number"

8 times a number is 8×x

increased by 9 is +9

7 times a number is 7×x

exceeds is minus

by 15 is =15

now we put it together.

$8 \times x + 9 - 7 \times x = 15$
solve
$8x + 9 - 7x = 15 \\ x + 9 = 15 \\ x = 6$

5 0

3 years ago

Read 2 more answers

Please someone help me do this no bots plz

chubhunter [2.5K]

Answer: your picture is blocked btw

Step-by-step explanation:

4 0

3 years ago

Please help me!!!!!!

Rom4ik [11]

Answer: