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fgiga [73]
3 years ago
12

Help me out with this question

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
4 0

Answer:daihuuajdijajdihaodah

Step-by-step explanation:audihaudhoadhoahdd/kajdlnaidlaibsdliabsdlisbalidhlnahfo

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The number of dimes in Kiara's collection is 13 more than 5 times the
Delvig [45]

Answer:

The number of dimes in Kiara's collection is 13 more than 5 times the

number of quarters in her collection. Kiara has 78 dimes in her

collection.

<h3>3) 78 = 5C+13</h3>

is the right answer.

5 0
3 years ago
How do you factor 5x^2 = 10x
denis-greek [22]
5x^2 = 10x 

5x^2-10x=10x-10x 

5x^2-10x=0 

     Use quadratic formula 

\quad x_{1,\:2}=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a} 

\mathrm{For\:}\quad a=5,\:b=-10,\:c=0:\quad x_{1,\:2}=\dfrac{-\left(-10\right)\pm \sqrt{\left(-10\right)^2-4\cdot \:5\cdot \:0}}{2\cdot \:5} 

x=\dfrac{-\left(-10\right)+\sqrt{\left(-10\right)^2-4\cdot \:5\cdot \:0}}{2\cdot \:5}:\quad 2 

x=\dfrac{-\left(-10\right)-\sqrt{\left(-10\right)^2-4\cdot \:5\cdot \:0}}{2\cdot \:5}:\quad 0 

x=2,\:x=0
8 0
3 years ago
Read 2 more answers
He stem and leaf plot shows the number of calories in one serving for 12 different snack foods.
masha68 [24]

Answer:

8

Step-by-step explanation:

my sis keep telling me the answers (︶^︶)  ◑︿◐

3 0
3 years ago
Read 2 more answers
Given tan θ = 2 and sin θ &lt; 0. Find cos(θ +pi/4)
Lera25 [3.4K]

Answer:

√10 / 10

Step-by-step explanation:

tan θ > 0 and sin θ < 0, so θ is in quadrant III.  That means cos θ < 0.

cos(θ + π/4)

Use angle sum formula.

cos θ cos(π/4) − sin θ sin(π/4)

½√2 cos θ − ½√2 sin θ

Factor.

½√2 cos θ (1 − tan θ)

½√2 cos θ (1 − 2)

-½√2 cos θ

Write in terms of secant.

-½√2 / sec θ

Use Pythagorean identity (remember that cos θ < 0).

-½√2 / -√(1 + tan²θ)

-½√2 / -√(1 + 2²)

½√2 / √5

√10 / 10

5 0
3 years ago
7x² + 6x - 1<br> Algebra 3|factoring
GaryK [48]

Answer:

(7 x - 1) (x + 1)

Step-by-step explanation:

Factor the following:

7 x^2 + 6 x - 1

Factor the quadratic 7 x^2 + 6 x - 1. The coefficient of x^2 is 7 and the constant term is -1. The product of 7 and -1 is -7. The factors of -7 which sum to 6 are -1 and 7. So 7 x^2 + 6 x - 1 = 7 x^2 + 7 x - x - 1 = (7 x - 1) + x (7 x - 1):

(7 x - 1) + x (7 x - 1)

Factor 7 x - 1 from (7 x - 1) + x (7 x - 1):

Answer: (7 x - 1) (x + 1)

5 0
3 years ago
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