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3 years ago

2x + 8 > -4 x = 4 Describe how to graph it on a number line.

Mathematics

1 answer:

denis23 [38]3 years ago

3 0

Answer:

Step-by-step explanation:

Focus on 2x + 8 > -4 first. Solve for x: Subtract 8 from both sides, which results in 2x > -12.

Dividing both sides by 2, we get x > -6.

Draw an open circle around -6 on the number line, and then draw an arrow to the right from x = -6.

Note that letting x = 4 is not helpful. 2(4) + 8 > -4 is true (16 > -4 is true).

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In ΔJKL, l = 860 inches, j = 920 inches and ∠K=126°. Find ∠L, to the nearest degree.

fomenos

Answer:

Step-by-step explanation:

JKL= ABC, jkl=abc

1.) use law of sines to find k.

$c^{2} =a^{2} +b^{2} -2abCosC$

$c=\sqrt{920^{2} +860^{2} -2(920)(860)cos(126) } = 1586.225515$

2.) use law of cosines to find L

$\frac{a}{sinA} =\frac{b}{sinB} =\frac{c}{sinC}$

plug in for b and c: $\frac{860}{sinB} =\frac{1586.225515}{sin126}$

cross multiply: $\frac{1586.23sinB}{1586.23} =\frac{860sin126}{1586.23}$

$sinB= 0.4386227612\\B=sin^-1(0.4386227612)= 26.01604086\\$

L=26

5 0

3 years ago

A jar Contains 18 strawberry- 24cheery- and 19 lime-flavored candy the rest of the candies are chocolate there are 82 candies an

tresset_1 [31]

Answer:

61 + n = 82

Step-by-step explanation:

So the total number of candy is 82. This is the sum of each type of candy, i.e. 18 + 24 + 19 + n. So we have

18 + 24 + 19 + n = 82

61 + n = 82

( if we solve the equation we get n = 82 - 61 = 21)

Hope it helps and if it does please mark me brainliest;)

8 0

3 years ago

How do you solve 6-4(-3)-5?

Mnenie [13.5K]

-3(5-6)-4(2-3)

Handling parentheses first:

-3(-1)-4(-1)

Multiplication left to right:

3-4(-1)

3-(-4)

Rewriting the above we have:

3+4=7

4 0

4 years ago

1. Darnell reads at a constant rate

JulsSmile [24]

Answer:

Darnell can read 1,715 words in 7 minutes

Step by step Explanation:

1. I need to find out how many words he reads in 1 minute. Divide 735 by 3, my answer is 245

245

______

3)735

6 bring down the 3 to make 13

-_____

1 3

12 bring down the 5 to make 15

-______

1 5

___________

2. multiply 735 by 2 cause he reads 735 words in 3 minutes and we are tryna find out how many words he reads in 7 minutes. 3×2=6, so 735+735 (735×2) equals 1470

3. Add 245, for that extra minute that we missed. my answer is 1,715 words in 7 minutes

8 0

3 years ago

Can I send a picture of a math problem

Tresset [83]

Answer:

yes you just have to insert it. pls mark as brainliest its the crown

Step-by-step explanation:

8 0

3 years ago