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
Contact [7]
3 years ago
11

Evaluate: 2^-2 x (13x3)-5^3

Mathematics
2 answers:
Lapatulllka [165]3 years ago
6 0

2^-2 x (13x3)-5^3

1/ (2^2) * 39 - 125

1/4 *39 -125

39/4 -125

9 3/4 - 125

factor out -1

- (125-9 3/4)

borrow to subtract the fraction

- (124 4/4 - 9 3/4)

- (115 1/4)

-115 1/4

Rainbow [258]3 years ago
3 0

Answer:

-115.25

2^-2 x (13x3)-5^3

2^-2 x (39)- 5^3

2^-2 x (39)- 125

0.25 x (39) - 125

9.75 - 125

-115.25




You might be interested in
Wesleys mother is 57 years old. her age is three years more than twice edwins age. what is wesleys age?
natita [175]

Answer: Edwin is likely a typo for Wesley.

Step by step:

Wmom=57

Wmom=3+2e

57=3+2e

54=2e

27=e

Edwin is 27 years old.

Aside from a typo, one can speculate on Wesley's age. He's likely between 20 and 39 years old based on his mother's age. If you want to delve into societal norms, Wesley is likely to be a name from a white middle to upper class parentage, so it's less likely he was had when his mother was a teen, or even in her early twenties because college, so move that age zone to 20 to 34. Then consider that having children later than 35 is consideration for a "risky" pregnancy and most women are urged to aim for before 33, but most upper middle class white women will be pressured to baby before 30. So, adjust Wesley's age zone to 27 to 34. And then...idk. But in all honesty I think Edwin is meant to be Wesley, because it's a math problem not a sociology one.

7 0
3 years ago
PLZ HELP, WILL MARK BRAINLIEST
andreev551 [17]

220.5

i dont know how to show my work sorry :) hope it helps

3 0
3 years ago
Which equation could generate the curve in the graph below?
dimulka [17.4K]

Answer:

The answer is option 1.

Step-by-step explanation:

In order to find the equation, you have to apply Discriminant Law, D = b² - 4ac. When D < 0, the equation has no real roots (no x-intercept). When D = 0, it has 2 and equal roots (1 x-intercept). When D > 0, it has 2 distinct roots (2 x-intercept).

Option 1,

y = 3 {x}^{2}  - 2x + 1

D =  {( - 2)}^{2}  - 4(3)(1)

D =  - 8

D < 0

Option 2,

y = 3 {x}^{2}  - 6x + 3

D =  {( - 6)}^{2}  - 4(3)(3)

D = 0

Option 3,

y = 3 {x}^{2}  - 7x + 1

D =  {( - 7)}^{2}  - 4(3)(1)

D = 37

D > 0

Option 4,

y = 3 {x}^{2}  - 4x - 2

D =  {( - 4)}^{2}  - 4(3)( - 2)

D = 40

D  > 0

As you look at the graph, the curve does not meet x-axis so the discriminant must be less than 0.

7 0
3 years ago
The ratio of clown fish to angel fish at a pet store is 5:4 the ratio of angel fish to goldfish is 4:3 there are 60 clown fish a
padilas [110]
There is 4 angel fish and 3 goldfish
3 0
3 years ago
Find each missing measure <br> Help please
skad [1K]
Angle m and n are 76 P Q and R are 60
7 0
3 years ago
Other questions:
  • Hello! I need help with my math homework! I need it ASAP.<br><br> 6x - 3 = -18 + x
    11·2 answers
  • Find the center and radius of (x-4)2 + (y+2)2 = 32
    12·1 answer
  • Determine the base of a parallelogram with height 6 5/8 and area 26 1/2
    6·1 answer
  • I need help is due in 20 minute
    7·1 answer
  • An object travels 4/5 miles in one half hour. what is its speed in miles/ hour
    8·1 answer
  • What is 29/7 as a mixed number?
    12·2 answers
  • Can someone answer this please
    8·1 answer
  • Solve for x if ab ≠ 2c
    6·2 answers
  • A square has an area of 4 m2. what is the length of each side?​
    7·1 answer
  • Write the equation for the graph shown below
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!