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nikklg [1K]
3 years ago
15

Evaluate f(-3) and f(5) with the equation f(x)=3x+5

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
7 0

Answers are provided in the images

OLga [1]3 years ago
4 0
See photos for solutions and steps :)

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Which one should I choose.
Mice21 [21]

Answer: 9

54 ÷ 2

27

3x = 27

x = 9

7 0
2 years ago
What is the value of b?<br><br><br><br> −7.5(x−3)=3.75<br><br><br> X = ???
son4ous [18]

There isn't a b variable in this equation, but x = 2.5. (:

7 0
3 years ago
Find the value of x<br> A- 6<br> B-5<br> C-4<br> D-10
Snezhnost [94]

Answer:

x=4

Step-by-step explanation:

In triangle MLK

  • it is a equilateral triangle
  • Hence
  • ML=LK=MK=5

Now come to triangle MKJ

  • It is a isosceles triangle
  • Hence
  • MJ=Mk

MK=5

Hence

\longrightarrow\sf MJ=5

\longrightarrow\sf x+1=5

\longrightarrow\sf x=5-1

\longrightarrow\sf x=4

4 0
2 years ago
Write the quadratic equation in vertex form.<br> y = x2 + 16x + 4
MrRa [10]

Answer:

x= y-4/18

y=18x+4

Step-by-step explanation:

6 0
3 years ago
Help.. solve for the given variable <br>-5(r - 6) + 3(-8 + 8r) = -32
12345 [234]
-5(r - 6) + 3(-8 + 8r) = -32

STEP 1: Simplify both sides of the equation.
<span><span><span><span><span><span>(<span>−5</span>)</span><span>(r)</span></span>+<span><span>(<span>−5</span>)</span><span>(<span>−6</span>)</span></span></span>+<span><span>(3)</span><span>(<span>−8</span>)</span></span></span>+<span><span>(3)</span><span>(<span>8r</span>)</span></span></span>=<span>−32 </span></span>(Distribute)
<span><span><span><span><span><span>−<span>5r</span></span>+30</span>+</span>−24</span>+<span>24r</span></span>=<span>−32</span></span><span><span><span>(<span><span>−<span>5r</span></span>+<span>24r</span></span>)</span>+<span>(<span>30+<span>−24</span></span>)</span></span>=<span>−32 </span></span>(Combine Like Terms)
<span><span><span>19r</span>+6</span>=<span>−32</span></span><span><span><span>19r</span>+6</span>=<span>−32
</span></span>
STEP 2: Subtract 6 from both sides.
<span><span><span><span>19r</span>+6</span>−6</span>=<span><span>−32</span>−6</span></span><span><span>19r</span>=<span>−<span>38

STEP 3: Divide both sides by 19.
19r/19 = -38/19
r = -2

FINAL ANSWER: r  = -2</span></span></span>
5 0
3 years ago
Read 2 more answers
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