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kobusy [5.1K]
4 years ago
14

Help with this math homework

Mathematics
1 answer:
timama [110]4 years ago
3 0

Answer and Explanation

1. Males taking geometry

Explanation: Find 19% of 30 to find answer

2. B- Between 40-60 minutes

Explanation: Measure the difference between the intervals

3.  B is correct.

Explanation: From the graph the actual heart rate=150=150

but calculated heart rate from best fit line=148=148

Difference between actual and calculated=150-148=2=150−148=2

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balu736 [363]

Answer: c) choosing a consonant from the set {b, c, d, e, f}

Step-by-step explanation:

Since all of the choice sets have 5 values each, a 0.8 chance = 80% = \frac{4}{5}.

So find the set with 4 values that meet the criteria.

A: 5/5 = 1 = 100%

B: 1/5 = 0.2 = 20%

C: 4/5 = 0.8 = 80%

D: 0/5 = 0 = 0%

5 0
3 years ago
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Solve each triangle. Round your answers to the nearest tenth
ivolga24 [154]
You have to use the Law of Cosines here, since there's no other way to solve this.  it's not a right triangle, so you can't use the Pythagorean Theorem.  The Law of Cosines will help us find the missing side length then we will have to use the Law of Sines to find another angle.  Then after that we will use the Triangle Angle-Sum theorem to finish it off.  Ready? The Law of Cosines to find side b isb^{2} = a^{2}+ c^{2} -2ac cosB and fill in the info we know, which is everything but the b. b^{2} =(21) ^{2} +(29) ^{2} -2(21)(29)cos109. Doing all that math gives us that side b = 40.9 or 41. Now the Law of Sines to find missing angle A or C.  Let's find A. \frac{sinA}{21} = \frac{sin109}{41}.  That gives us that angle A is 29.  Now use the fact that all triangles add up to 180 to get that angle C is 42.  And you're done!

7 0
3 years ago
Justus samples 3 oranges from each of his trees ,plus an extra 50 oranges from the whole orchard , to judge whether it is time t
Gemiola [76]

let there are x number of trees

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total number of oranges = 3x+50

as a function f(x) we can write it as

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6 0
3 years ago
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(3-x)(x-5)<br> Hurry PLZ
marshall27 [118]

Answer:

-3x^2 + 15x

Step-by-step explanation:

(3 - x) (x - 5)

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=> -3x^2 + 15x

3 0
3 years ago
Help pls I will give brainliest!
oee [108]

Answer:

We are missing 210

Step-by-step explanation:

3*4 = 12

3*70 =210

3*300=900

We are missing 210

8 0
3 years ago
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