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3 years ago

Help it’s #8 it’s due by 12

Mathematics

1 answer:

nignag [31]3 years ago

5 0

Answer:

I think it can be 12 and -6

Step-by-step explanation:

The sum has to be equal to 6

12+ -6= 6

Also, the two integers have opposite signs as asked in the question

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Solve for x 14 x square+7x-6

irina [24]

Answer:

x=0.450765 or x=−0.950765

Step-by-step explanation:

14x² + 7x - 6

→ Find the product, sum and factors

Product = -6

Sum = 7

Factors = No factors

→ Since there are no factors utilise the quadratic formula

$\frac{-b+-\sqrt{b^{2}-4ac } }{2a}$

→ List the values of a, b and c

a = 14

b = 7

c= -6

→ Substitute into the formula

$\frac{-7+-\sqrt{7^{2}-4*14*-6} }{2*14}$

→ Simplify

x=0.450765 or x=−0.950765

8 0

4 years ago

Read 2 more answers

Reminder: variables are on both sides

yarga [219]

Start by multiplying both sides of the equation by 7 (the common denominator).

$7 \left(\frac{6z}{7} -27 \right)=7\left(\frac{21-4z}{7} \right) \\ 6z-189=21-4z$

Add 4z to both sides.

$10z-189=21$

Add 189.

$10z=210 \\ z=21$

8 0

3 years ago

Adding &subtracting negative numbers Evaluate 14 + (-9) - (-9)=?

Tcecarenko [31]

Answer:

I got 14

Step-by-step explanation:

(Pemdas) -9 - -9 = 0

0+14=14

7 0

3 years ago

What is the approximate value of b, rounded to the nearest tenth? Use the law of sines to find the answer. Triangle A B C is sho

Setler79 [48]

Answer:

4.7 units

Step-by-step explanation:

We are given that in triangle ABC

AB= 3 units

Angle ABC=76 degree

Angle CAB=66 degrees

AC=b

We have to find the approximate value of b using sin laws.

We know that sum of angles of a triangle =180 degrees

$\angle CAB+\angle ABC+\angle ACB=180$

$76+66+\angle ACB=180$

$142+\angle ACB=180$

$\angle ACB=180-142=38^{\circ}$

We know that law of sines

$\frac{BC}{Sin A}=\frac{AC}{SinB}=\frac{AB}{sin C}$

Substitute the values then we get

$\frac{b}{sin 76^{\circ}}=\frac{3}{sin 38^{\circ}}$

$b=\frac{3}{sin 38^{\circ}}\times sin 76^{\circ}$

$b=4.7$

Hence, the value of b= 4.7 units

5 0

4 years ago

Read 2 more answers

Johnathan makes $27 per hour and works 25 hours per week. Every week, he has to sell 20 items. If he sells more than 20 items in

ser-zykov [4K]

Answer:

Total income = 27 $\times$ 25 + 14% of $1000= $815

Step-by-step explanation:

Number of hours for which Johnathan worked = 25

Salary for each hour = $27

So, income for 25 hours = 25 $\times$ 27 = $675

Now, it is given that he has sold 25 items.

Sales made beyond the 20 items = $1000

Additional income for additional sales = 14% on each set of 5 items

He has sold exactly 5 additional items that means 1 set of 5 additional items.

So, Additional income for additional sales = 14% $\times$ 1000 = $140

Therefore, total income of this week = Income for 25 hours + Income due to additional sales of 5 items

Therefore Total income = 27 $\times$ 25 + 14% of $1000= $815

7 0

3 years ago