Solve 2x^2+15x-8=0 and 2x^2+8x-24=0 for x

Answers

Answer 1
Answer:

Answer:

X=.5

Step-by-step explanation:

put 2x^2+15x-8 into y1 of your calculator and 0 in y2 then second, trace, 5, enter, enter, enter. Then you have your answer


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Sam's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Sam $5.70 per pound, and type B coffee costs $4.15 per pound. This month, Sam made 142 pounds of the blend, for a total cost of $688.50. How many pounds of type B coffee did he use?

Answers

Answer:

165.90 pounds

Step-by-step explanation:

Answer:

165.90

Step-by-step explanation:

MARKING BRAINLIEST!! PLEASE HELP ME. A. Name the angle relationship.

B. Find the value of x and show your work.

Answers

Answer:

Complementary angle

Step-by-step explanation:

It adds up to 90 degrees

What does the term expected count mean and how is it calculated

Answers

Expected count refers to the projected frequencies expected in every cell when the variables are independent. The expected count is calculated by multiplying the row total and the column total;  the product of which shall be divided by the sample size.

20
X + 60°
X=
20
40
80

Answers

i think its C because don't you have to add the numbers together

The answer is 40 degrees :]

Ray Cupple bought a basic car costing $26,500.00, with options costing $725.00. There is a 6% sales tax in his state and a combined $50.00 license and registration fee. What was Ray's total cost?A. $28,865.00
B. $28,911.50
C. $27,275.00
D. $28,908.50

Answers

Answer: D. $28,908.50


Step-by-step explanation:

Given: Cost price of car= $26,500

Cost of options= $725

Therefore, the total cost=$26,500+ $725=$27225

As there is a 6% sales tax in his state .

⇒ Tax amount = 6% of Total cost

=0.06*\$27225=\$1,633.5

⇒Tax amount=$1,633.5

Combine $50 licence, registration fee and tax amount to the total cost , we get

Total cost=$27225+$1,633.5+$50

∴Total cost=$28,908.5

Adding the basic car costing and the additional options costing, we have (26500 + 725) = $ 27 225. Since sales tax is to be included for the payment, Ray must pay for 1.06 of the basic cost. Which is equal to 1.06(27 225) = $ 28 858.50 Adding the license and registration fee into the price, we have $28 908.50. Hence, the total cost is D: $28, 908.50.

Which equation will have the same solution as 3(2x-1)+4x=13?

Answers

6x - 3 + 4x = 13

10x - 3 = 13

10x = 16

x = 1.6

Any equation whose solution is    x=1.6   has the same solution as this one has.
Sadly, you didn't share the list of choices, so it's not possible to point you toward
the correct one. 
3(2x-1)+4x=13\n\n6x-3+4x=13\n\n10x=13+3\n\n10x=16\ \ /:10\n\nx=(16)/(10)\n\nx=1.6