1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fed [463]
3 years ago
13

Please help and explain I'll give u 12pts

Mathematics
1 answer:
White raven [17]3 years ago
7 0

-7x² + 70x - 175

= -7(x² - 10x + 25)

= -7(x - 5)²

= -7(x + -5)²

Answer: -5

You might be interested in
Find x.<br> x = 4<br> x = 5<br> x = 6
ivann1987 [24]
X=5, should be right correct me if i’m wrong.
7 0
3 years ago
Read 2 more answers
16x² +8-7x-3x2 - 13x
liq [111]

Answer:

13x^{2}-20x+8

Step-by-step explanation:

Step 1: rearrange the equation

16x^2 - 3x^2 - 7x - 13x +8

Step 2: solve the equation

16x^2 - 3x^2 = 13x^2

-7x - 13x = -20x

(the +8 will stay the same)

so when we put it all together it gives us

13x^2 - 20x + 8

5 0
3 years ago
How to simply <br> -7+5x=5x+9
scoundrel [369]

Dear, there is no solution to this equation

8 0
2 years ago
A pharmacist has 40% and 60iodine solutions on hand. How many liters of each iodine solutions will be required to produce 4 lite
Schach [20]

A pharmacist has 40% and 80% of iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine mixture?

.

Let x = liters of 40% iodine

then

4-x = liters of 80% iodine

Using algebra:

.40x + .80(4-x) = .50(4)

.40x + 3.20-.80x = 2

3.20-.40x = 2

x = 4 liters (40% iodine)

80% iodine:

4-x = 4-4 = 0 liters needed (80% iodine)

4 0
3 years ago
Researches notice a grey whale cruising at a depth of 233 feet below sea level. It rises 73 feet and then comes up another 40 fe
Rus_ich [418]

Answer:130ft

Step-by-step explanation:

233-63=170. 170-40=130ft.

3 0
3 years ago
Read 2 more answers
Other questions:
  • 27 hundredths + 7 hundredths
    12·2 answers
  • Nellie has a watering can that contains 20 cups of water.She pours one quart of water on each plant in her yard.If Nellie uses a
    10·1 answer
  • If y is 2.5 when x is 5 and y varies directly with x, find y when x is 10.
    8·2 answers
  • There is a sale on video games. The first game you buy will cost $40. Each game after that will cost $25. Which formula models t
    8·2 answers
  • What is the percent of the original price
    10·1 answer
  • Work out the problem for 17/20 +7/20
    9·2 answers
  • What is the value of y
    6·2 answers
  • Parallel perpendicular or neither
    15·1 answer
  • Which choice is similar to the figure shown?
    8·1 answer
  • (50 points) need help.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!