1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gemiola [76]
2 years ago
9

Evaluate 10a + 7 if a = 1/5.

Mathematics
1 answer:
gladu [14]2 years ago
8 0

Answer:

9

Step-by-step explanation:

We know that a=1/5. Therefore, we can substitute 1/5 in for a into the expression.

10a + 7

10(1/5)+7             <em>Multiply 1/5 and 10</em>

2+7                    <em>Add 2 and 7 </em>

9

You might be interested in
C
yanalaym [24]

Answer:

2x² - 6x

Step-by-step explanation:

(3x² - 4x + 8) + (- x² - 2x - 8) ← remove both parenthesis

= 3x² - 4x + 8 - x² - 2x - 8 ← collect like terms

= 2x² - 6x

7 0
2 years ago
Find the number of positive three-digit even integers whose digits are among 9, 8, 7, 5, 3, and 1.
sp2606 [1]

Answer:

5,3,1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A quarterback throws a football to a teammate. The football is 6.5ft above the ground when it leaves the quarterback's hand. His
sergejj [24]

Answer:

y = - 16t² + 55.6t + 6

Step-by-step explanation:

Using y - y₀ = vt - 1/2gt² where g = 32 ft/s², and v the velocity of the football

So y = y₀ + vt - 1/2 × (32 ft/s²)t²

y = y₀ + vt - 16t² where y₀ = 6.5 ft

y = 6 + vt - 16t²

Now, when t = 3.5 s, that is the time the teammate catches the ball after the quarterback throws it, y = 5 ft. Substituting these into the equation, we have

5 = 6.5 + v(3.5 s) - 16(3.5 s)²

5 = 6.5 + 3.5v - 196

collecting like terms, we have

5 - 6.5 + 196 = 3.5v

194.5 = 3.5v

v = 194.5/3.5 = 55.57 ft/s ≅ 55.6 ft/s

So, substituting v into y, our quadratic model is

y = 6 + 55.6t - 16t²

re-arranging, we have

y = - 16t² + 55.6t + 6

6 0
3 years ago
If x = 2a - b^2, then b equals
kvasek [131]
X = 2a - b²
x - 2a = b²
√x-2a = b

Just to clarify, all of x-2a is under the square root.
7 0
3 years ago
Select the locations on the number line to plot the points −3 , −8 , and −14 .
klasskru [66]

Answer:

-14 plot behind the 15

count back three from 0 to get -3

to get -8 count back from 0 also

8 0
3 years ago
Other questions:
  • Calculate the circumference of the inscribed circle. [Use π = 3.14]
    13·2 answers
  • Plot the x intercepts of the function
    8·1 answer
  • What equations are equivalent to 6x+9=12 ?​
    5·1 answer
  • Not sure how to complete this, info is in the photo.
    15·1 answer
  • Solve for f<br><br> 2 + 1.25 = 10 - 2.75f
    9·1 answer
  • two fractions have a common denominator of 8. which of the following could be two fractions? a)1/2 and 2/3 b) 1/4 and 1/2 c)3/4
    9·2 answers
  • 1 Middle School Mathematics 5 points stio49304Asked 03.20.2020 Charlotte runs a farm stand that sells bananas and raspberries. E
    9·1 answer
  • A survey is targeted at 12-year-old children. Which questions are appropriate for the population?
    11·1 answer
  • Can someone help me !
    12·1 answer
  • Analyze the diagram below and complete the instructions that follow.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!