3 years ago

Can someone help me with #2?? it would be much appreciated! :)

Mathematics

1 answer:

jekas [21]3 years ago

4 0

There you go? Is that right or no?

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Mark studies a group of 30 whales. If each whale weighed approximately 3.8 x 105 pounds, find the total weight of all 30 whales.

Yakvenalex [24]

Answer:

$= 1.14 \times 10^{7}pounds$

Step-by-step explanation:

If each whales weighed

$3.8 \times {10}^{5}$

Then 30 whales weighed

$30 \times 3.8 \times {10}^{5}$

$=114 \times {10}^{5}$

$= 1.14 \times 10^{2} \times {10}^{10}$

Applying the law of indices we obtain

$= 1.14 \times 10^{(2+ 5)}$

$=1.14 \times 10^{7}pounds$

6 0

2 years ago

Please help me out! :)

skad [1K]

3x-11=x+23
-x -x
2x-11=23
+11 +11
2x=34
x=17

3(17)-11 17+23
=40 =40

explanation ;
you would equal them because they are congruent . & you substitute x for 17 in each equation to find out the degrees of both of the angles :)

8 0

3 years ago

2(4+2x)≥5x+5 solve inequality

valkas [14]

Answer:

x ≤ 3

Step-by-step explanation:

2(4+2x)≥5x+5

8+4x≥5x+5

4x-5x≥5-8

-x≥-3

x ≤ 3

6 0

2 years ago

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Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!

bija089 [108]

Answer:

Step-by-step explanation:

(9x + 10)° = 136°

9x + 10 = 136

9x = 126

x = 14

5 0

2 years ago

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Lindsay spins a spinner once and then flips a fair coin twice. The spinner is

SashulF [63]

Answer:

The Probability Is That It Has A 50/50 Chance Of Landing On Either Side

Step-by-step explanation:

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2 years ago