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n200080 [17]
3 years ago
12

Evaluate x^2+5 when x equals 3

Mathematics
1 answer:
earnstyle [38]3 years ago
7 0

Answer:

6

Step-by-step explanation:

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What is this?<br> q+2/5 = 2q - 11/ 7<br> Please help.
just olya [345]
<span>We simplify the equation to the form, which is simple to understand
<span>q+2/5=2q-11/7

Simplifying:
<span>q + 0.4=2q-11/7

Simplifying:
<span>q + 0.4=2q-1.57142857143

We move all terms containing q to the left and all other terms to the right.
<span>+1q-2q=-1.57142857143-0.4

We simplify left and right side of the equation.
<span>-1q=-1.97142857143

We divide both sides of the equation by -1 to get q.
<span>q=1.97142857143</span></span></span></span></span></span></span>
4 0
3 years ago
HELPPPPPP pls give explaiantikn or work pls pls pls pls brainliest
Andru [333]

Answer:

Elizabeth had 30 stamps originally.

Step-by-step explanation:

Let,

x be the number of stamps Elizabeth have.

Number of stamps given to John = 1/6 of x = \frac{1}{6}x

Remaining stamps = x-\frac{1}{6}x = \frac{6x-1x}{6} = \frac{5}{6}x

Stamps given to Peter = 1/5 of remainder = \frac{1}{5}*\frac{5}{6}x = \frac{1}{6}x

Number of stamps left = 20

Now,

\frac{1}{6}x + \frac{1}{6}x + 20 = x\\\\\frac{1x+1x+120}{6} = x\\\\\frac{2x+120}{6} = x\\\\2x + 120 = 6x \\\\120 = 6x - 2x \\\\120 = 4x \\4x = 120

Dividing both sides by 4

\frac{4x}{4}=\frac{120}{4}\\x=30

Hence,

Elizabeth had 30 stamps originally.

3 0
2 years ago
Please help me!!!!!!!!!!!
mestny [16]
3. Yes
4. No, not to a power of ten
5. BDAC
6. BACD
7. Top answer
8. 25
9. 15 x10^11
10. 24 x10^2
11. 7.23 x10^14
12. 9.191 x10^7
13. t^38

Does that help?

4 0
3 years ago
Help i forgot how to do this
Romashka [77]

Answer:

a=3/5 or 0.6

Step-by-step explanation:

a-8/5-2/3a=-7/5

Step 1: Multiply both sides

15a-24-10a=-21

Step 2: Combine like terms

5a-24=-21

Step 3: Calculate and divide both sides by 5

5a=3

Solution:

a=3/5 or 0.6

5 0
3 years ago
What is the slope-intercept form of the function described by this table?
r-ruslan [8.4K]
As the name suggests, the slope-intercept form requires you to find the slope and the intercept. Slope-intercept form is y=mx+b

You can find slope by rise over run, or get two points and plug them into the following formula: \frac{y_2-y_1}{x_2-x_1}. However, if you see that x values increase by one, you can just find the difference between two y values. In this case, the difference is +5 each time, therefore, the slope or <em>m </em>is 5

The intercept is where x=0. Since we know that (1,2) is a point, we subtract 5 from 2 to get the intercept. Therefore, the intercept is -3

Therefore, the formula is y=5x-3
4 0
3 years ago
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