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4 years ago

If f(x)=3-|7+2x|, evaluate if f(-5)

Mathematics

2 answers:

rjkz [21]4 years ago

8 0

Answer:

Step-by-step explanation:

the || makes whatever number is inside it abslute so -3 becomes 3 instead

Ymorist [56]4 years ago

5 0

Answer:

$f(-5)=0$

Step-by-step explanation:

$f(x)=3-|7+2x|\\f(-5)=3-|7+2(-5)|\\f(-5)=3-|7+(-10)|\\f(-5)=3-|-3|\\f(-5)=3-3\\f(-5)=0$

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two dice are rolled in succession. determine the probability that their sum is 8 or more, given that the first die is a 4 or mor

viva [34]

See the pic for answer.

8 0

3 years ago

(Four-fifths + three-fifths) + 3.5 times 5

defon

Answer:

18.9

Step-by-step explanation:

First, lets solve for the fractions. You can divide the fractions from the top, to their bottom (4 divided by 5, 3 divided by 5), in this case, you get 1.4. Now you have to rewrite the problem: 1.4+3.5x5. You solve it, and get 18.9.

7 0

3 years ago

Read 2 more answers

Jacob took a total of 1212 quizzes over the course of 33 weeks.

ipn [44]

Answer:

1212=1212=

33weeks=33we2ks33weeks=33we2ks

weeks=we2ksweeks=we2ks

1616=we2ks1616=we2ks

Step-by-step explanation:

simplificar 16161616.

1212=1212=

33weeks=33we2ks33weeks=33we2ks

weeks=we2ksweeks=we2ks

1616=we2ks1616=we2ks

6 0

2 years ago

Consider kite WXYZ. What are the values of a and b? a = 4; b = 10. a = 4; b = 40, a = 8; b = 10, a = 8; b = 40

Brut [27]

Check the picture below.

let's recall that a kite is a quadrilateral, and thus is a polygon with 4 sides

sum of all interior angles in a polygon

180(n - 2) n = number of sides

so for a quadrilateral that'd be 180( 4 - 2 ) = 360, thus

$\bf 3b+70+50+3b=360\implies 6b+120=360\implies 6b=240 \\\\\\ b=\cfrac{240}{6}\implies b=40 \\\\[-0.35em] ~\dotfill\\\\ \overline{XY}=\overline{YZ}\implies 3a-5=a+11\implies 2a-5=11 \\\\\\ 2a=16\implies a=\cfrac{16}{2}\implies a=8$