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gayaneshka [121]
3 years ago
10

If the expression 4c + 2b + 4d is subtracted from 3c + 4b + 5d then the answer will be​

Mathematics
2 answers:
Mice21 [21]3 years ago
8 0

Answer:

c - 2b - d

Step-by-step explanation:

(4c + 2b + 4d) - (3c + 4b + 5d) =

4c + 2b + 4d -3c - 4b - 5d =

c - 2b - d

kirill [66]3 years ago
6 0

Answer:

1c 2b 1d

Step-by-step explanation:

did the math

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Find the angle between the given vectors to the nearest tenth of a degree. u = , v = (2 points)
Liono4ka [1.6K]

Answer:

<h2>3.6°</h2>

Step-by-step explanation:

The question is incomplete. Here is the complete question.

Find the angle between the given vectors to the nearest tenth of a degree.

u = <8, 7>, v = <9, 7>

we will be using the formula below to calculate the angle between the two vectors;

u*v = |u||v| cos \theta

\theta is the angle between the two vectors.

u = 8i + 7j and v = 9i+7j

u*v = (8i + 7j )*(9i + 7j )

u*v = 8(9) + 7(7)

u*v = 72+49

u*v = 121

|u| = √8²+7²

|u| = √64+49

|u| = √113

|v| = √9²+7²

|v| = √81+49

|v| = √130

Substituting the values into the formula;

121= √113*√130 cos θ

cos θ = 121/121.20

cos θ = 0.998

θ = cos⁻¹0.998

θ = 3.6° (to nearest tenth)

Hence, the angle between the given vectors is 3.6°

5 0
3 years ago
50% of what number is 140?
babunello [35]

Answer:

The answer is 70

3 0
3 years ago
please answer this question im very desperate and if you get it right in the next 15 mins i will mark you brainliest tysmm :D
Greeley [361]

Answer:

117

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Given that KD is congruent to AT prove that angle K is congruent to angle T
Mademuasel [1]

KD is congruent to AT as:

<h3>angles are of equal measure</h3><h3>sides KD and TA are equal</h3><h3>sides DT and KA are equal</h3>

The figure is kite as has two pairs of same sides.

<h3>They are constructed in a way of having same angle.</h3>
7 0
2 years ago
Simplify:
Mashutka [201]

Answer:

The answer is letter B.

Hope it will help you

4 0
3 years ago
Read 2 more answers
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