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nlexa [21]
3 years ago
14

If f(x)=-5x-4, then f(2)=

Mathematics
1 answer:
NeX [460]3 years ago
6 0

Answer:

f(x) = -5(2)-4     f(x) = -10-4      f(x) = -14

Step-by-step explanation:

You put in the number 2 for the variable x

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To make a soup, 2 cups of chicken broth are needed for each 1/4 cup of dried lentils. How many cups of chicken broth are needed
dybincka [34]

Answer:

You'll need 18 cups of chicken broth!

Step-by-step explanation:

You are using a ratio of 1/4 cup (lentils) to 2 cup (broth). Therefore, you need to find the relationship between lentil and broth.

  • In order to get from 1/4 to 2, you multiply by 8. (1/4 * 8 = 2)
  • Therefore, the common relationship is multiplying the lentil amount by 8
  • So, 2 1/4 * 8 = 18

Therefore, 18 cups are needed :D

5 0
3 years ago
Pls help I will mark brainleist!!show all work!
vladimir1956 [14]

Answer:

Pants cost $20 and tee-shirts $10.

Step-by-step explanation:

For Sam 3t + 2p = 70

For Jessica 4t + p = 60

Take 2 times Jessica's equation and subtract Sam's

8t + 2p = 120

3t + 2p = 70

5t = 50

t = 10

3(10) + 2p = 70

30 + 2p = 70

2p = 40

p = 20

7 0
3 years ago
Solve each system of equations by using substitution.<br> x+4y=3<br> 2x-3y=17
olganol [36]
X + 4y = 3 x = -4y + 3
2x - 3y = 17

2(-4y + 3) - 3y = 17
-8y + 6 - 3y = 17
-11y + 6 = 17
-11y = 11
y = -1

x = -4(-1) + 3
x = 4 + 3
x = 7

(7, -1) is your answer
4 0
3 years ago
Read 2 more answers
Help meeee please in quadratic equation
Natasha2012 [34]
What part are you wanting to know about? The written of number 9? 
3 0
3 years ago
Read 2 more answers
What numbers form a right triangle
Cloud [144]

let's recal the pythagorean theorem, where c² = a² + b², namely, the largest number squared is equal to the sum of the two smaller ones squared.

well, we can just start by say in A, looking the smaller sides, 3 and √9, if we squared both and add them up, do they give the largest one of √18?

\boxed{A} \\\\ 3^2+(\sqrt{9})^2 = (\sqrt{18})^2\implies 9+9 =18\qquad \textit{\Large\checkmark} \\\\\\ \boxed{B}\\\\ 3^2+4^2=5^2\implies 9+16=25\implies 25=25\qquad \textit{\Large\checkmark} \\\\\\ \boxed{C}\\\\ 7^2+7^2=(\sqrt{98})^2\implies 49+49=98\implies 98=98\qquad \textit{\Large\checkmark}

so they all apply.

8 0
2 years ago
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