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2 years ago

Can someone actually help me with this please and thank you

Mathematics

1 answer:

Musya8 [376]2 years ago

6 0

Answer:

a. F(x)=10x-1 , the value of F(-2) is

F(-2)=10(-2)-1

f(-2)= -20-1

f(-2)= -21

b. g(x)= -5x+13 , the value of g(1)

g(1)= -5(1)+13

g(1)= -5+13

g(1)= 8 or +8

c. h(x)= $x^{2}$ -x-12 , the value of h(3) is

h(3)= $3^{2}$ -3-12

h(3)=9-3-12

h(3)= -6

Step-by-step explanation:

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If the ratio of red hair bands to green hair bands is 5 to 9 with a total of 70, how many are green

Eduardwww [97]

$5x-\ red\\9x-\ green\\\\5x+9x=70\\
14x=70\ \ \ | divide\ by\ 14\\\\
x=5\\\\
9x=9*5=45\\\\
There\ are\ 45\ green.$

5 0

3 years ago

Which of the following is equal to 4 and 2/3 ÷ by 3 and 1/2

Natalka [10]

4 and 2/3 = 14/3

3 and 1/2= 7/2

so 14/3:7/2= 14/3*2/7

the B is correct

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3 years ago

Point M is the midpoint of PQ. The coordinates of P and M are given below.

Zepler [3.9K]

The coordinates of Q are (-1,6)

Further Explanation:

Given points are:

$(x_m, y_m) = (5, -2)\\(x_p,y_p) = (11, -10)$

The formula for mid-pint is:

$(x_m, y_m) = (\frac{x_p+x_q}{2} , \frac{y_p+y_q}{2})\\From\ this\ we\ get\\x_m = \frac{x_p+x_q}{2}\\Putting\ values\\5 =\frac{11+x_q}{2}\\5*2 = 11+x_q\\10 = 11+x_q\\10-11 = x_q\\x_q = -1\\AND\\y_m = \frac{y_p+y_q}{2}\\-2 = \frac{-10+y_q}{2}\\-2*2 = -10+y_q\\-4 = -10+y_q\\-4+10 = y_q\\y_q = 6$

The coordinates of Q are (-1,6)

Keywords: Coordinate geometry, mid-point

Learn more about mid-point at:

#LearnwithBrainly

7 0

3 years ago

Find the value of x in the triangle <br> X=??

o-na [289]

25 degrees since all triangles add up to 180 56 and 99 together make 155 and subtract 180 by 155 and you get 25

5 0

3 years ago

Read 2 more answers

Please answer this question, will give brainliest!

Andrej [43]

Answer:

6.63 cm

Step-by-step explanation:

The segments within the circle form a right angle. Triangle CRS as a right triangle must follow the Pythagorean theorem which says the square of each leg adds to the square of the hypotenuse.

a² + b² = c²

Here a is unknown, b = 10 and c = 12.

a² + 10² = 12²

a² + 100 = 144

a² = 44

a = √44 = 6.63

8 0

3 years ago