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Sladkaya [172]
2 years ago
10

5. Two-thirds a number plus 4 i 7.​

Mathematics
1 answer:
eimsori [14]2 years ago
7 0

Answer:

x = 9/2.

Step-by-step explanation:

2/3 x + 4 = 7

2/3 x = 3

Multiply both sides by 3/2:

2/3 * 3/2 x = 3 * 3/2

x = 9/2.

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Write an equation for the graph of a linear function that has slope -1/3 and a y intercept -3
TEA [102]

Answer: y=-(1)/(3)x-3

Please mark brainiest

3 0
2 years ago
Help! I need the answer for this. 5x^2-16x+13=10
tatiyna

Answer:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

Exact Form:

x=1/5,3

Decimal Form:

x=0.2,3

4 0
2 years ago
Given the right angle triangle shown here, calculate:
charle [14.2K]

Answer:

see explanation

Step-by-step explanation:

(1)

(a)

sin(a) = \frac{opposite}{hypotenuse} = \frac{15}{17}

(b)

cos(a) = \frac{adjacent}{hypotenuse} = \frac{8}{17}

(c)

tan(a) = \frac{opposite}{adjacent} = \frac{15}{8}

----------------------------------------------------

(2)

(a)

sin(b) = \frac{opposite}{hypotenuse} = \frac{8}{17}

(b)

cos(b) = \frac{adjacent}{hypotenuse} = \frac{15}{17}

(c)

tan(b) = \frac{opposite}{adjacent} = \frac{8}{15}

5 0
3 years ago
Read 2 more answers
The circumference of a circle is 12.3 in what is the radius of the circle
Rasek [7]

Answer: r≈1.96

Step-by-step explanation:

C=2πr

Solving for r

r=C

2π=12.3

2·π≈1.95761

7 0
3 years ago
You decide to record the hair colors of people leaving a lecture at your school. What is the probability that the next person wh
deff fn [24]

This question is incomplete, the complete question is;

You decide to record the hair colors of people leaving a lecture at your school. What is the probability that the next person who leaves the lecture will have blonde hair ?

Express your answer as a simplified fraction or a decimal rounded to four decimal places.

Blonde Red Brown Black Gray

31          25       18      40     42

Answer: the probability that the next person who leaves the lecture will have blonde hair is 0.1987

Step-by-step explanation:

Given that;

HAIR COLOR      FREQUENCY

Blonde                         31

Red                              25

Brown                          18

Black                           40

Gray                            42

Total                           156

So

there were 156 people all together

and out of the 156, 31 of them were blonde.

now the probability that the next person who leaves the lecture will have blonde hair will be;

⇒ 31 / 156 = 0.1987

Therefore, the probability that the next person who leaves the lecture will have blonde hair is 0.1987

4 0
2 years ago
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