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Ilya [14]
3 years ago
15

Help me with number 4,5,6,7

Mathematics
1 answer:
FrozenT [24]3 years ago
8 0

Answer

number

4.D

5.B

6.C

<h3>7.B</h3><h2>Hopes this help</h2>
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<img src="https://tex.z-dn.net/?f=-6%20%2B%203x%20-%209x%5E%7B2%7D%3D-16" id="TexFormula1" title="-6 + 3x - 9x^{2}=-16" alt="-6
ehidna [41]

The solution of x in -6 + 3x - 9x^2 = -16 is x = \frac{3 \pm \sqrt{369}}{18}

<h3>How to solve the equation?</h3>

The equation is given as:

-6 + 3x - 9x^2 = -16

Add 16 to both sides

10 + 3x - 9x^2 = 0

Rewrite as:

9x^2 - 3x - 10 = 0

Solve for x using the quadratic formula

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

So, we have:

x = \frac{3 \pm \sqrt{(-3)^2 - 4 * 9 * -10}}{2 * 9}

Evaluate

x = \frac{3 \pm \sqrt{369}}{18}

Hence, the solution of x in -6 + 3x - 9x^2 = -16 is x = \frac{3 \pm \sqrt{369}}{18}

Read more about quadratic functions at:

brainly.com/question/1497716

#SPJ1

4 0
2 years ago
Solve for a triangle. 2x + 4x + 6x = 180
a_sh-v [17]

Answer:

x=15

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
John made 12 dollars per delivery plus a base pay of 30 dollars.
Effectus [21]

Answer:

10

Step-by-step explanation:

$150 minus the base pay of $30 is $120. Divide this by the $12 he makes each delivery. 120/12=10

5 0
3 years ago
At a zoo, 3 pandas eat a total of 181 1/2 pounds of bamboo shoots each day. The male panda eats 3 times as much as the baby. The
qaws [65]
3b+2b+b=181.5
6b=181.5
6b/6=181.5/6
b=30.25

The baby panda eats 30.5 pounds and since the female panda eats two times that you multiply it by two.

30.25 x 2 = 60.5
7 0
4 years ago
Find missing number 17+ _ 37
Serjik [45]

Answer: 20

Step-by-step explanation:

37 - 17 = 20

20 + 17 = 37

8 0
3 years ago
Read 2 more answers
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