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
Mama L [17]
2 years ago
13

Evaluate this exponential expression 7 • (6+2)^2 - 3^2=

Mathematics
1 answer:
Lelu [443]2 years ago
3 0

Answer: 441

Step-by-step explanation:

7*(6+2)^2-3^2

7*8^2-3^2

7*64-9

448-9

441

You might be interested in
Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots StartRoo
anastassius [24]

Answer:

a) f(x)=3x^{3}-6x^{2}-15x+30

Step-by-step explanation:

1) In this question we've been given "a", the leading coefficient. and two roots:

x_{1}=\sqrt{5}\:x_{2}=2

2) There's a theorem, called the Irrational Theorem Root that states:

If one root is in this form x'=\sqrt{a}+b  then its conjugate x''=\sqrt{a}-b. is also a root of this polynomial.

Therefore

x_3=-\sqrt{5}

3) So, applying this Theorem we can rewrite the equation, by factoring. Remembering that x is the root. Since the question wants it in this expanded form then:

f(x)=3(x-\sqrt{5})(x+\sqrt{5})(x-2)\Rightarrow 3x^{3}-6x^{2}-15x+30

4 0
3 years ago
Read 2 more answers
Cal is buying T-shirts and shorts. T-shirts cost $12 and shorts cost $25. He plans on spending no more than $160 and wants to bu
Semenov [28]
12t (that's the $12 for a shirt) + 25s (25 dollars for shorts) < (or equal too) 126
The combination cost for the shirts and shorts has to be less than or equal to $126

t + s > (or equal too) 5

The total number of items has to be greater then or equal too or equal to 5
8 0
3 years ago
What is the percent increase in 300 and 375
inysia [295]

Answer:

25

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Write eight billion twenty-three million four hundred seventy-two thousand eleven in standard form.
musickatia [10]

Answer: 8,230,472,011


Explanation:

billions: __8

millions: 230

thousands: 472

ones: 011

8 0
2 years ago
Read 2 more answers
13. 11 = 2b +17 14. 5 = 4a -7
dedylja [7]

13.\ 2b+17=11\qquad|-17\\\\2b=-6\qquad|:2\\\\\boxed{b=-3}\\\\14.\ 4a-7=5\qquad|+7\\\\4a=12\qquad|:4\\\\\boxed{a=3}\\\\16.\ 2g-3=-19\qquad|+3\\\\2g=-16\qquad|:2\\\\\boxed{g=-8}\\\\17.\ 5x-9=16\qquad|+9\\\\5x=25\qquad|:5\\\\\boxed{x=5}\\\\19.\ 5+\dfrac{y}{8}=-3\qquad|-5\\\\\dfrac{y}{8}=-8\qquad|\cdot8\\\\\boxed{y=-64}


3 0
3 years ago
Other questions:
  • What is the anwer? plz help. 2(4x+2) = 4x - 12(x-1)
    6·2 answers
  • The lengths of the bases of the right trapezoid are 9 cm and 18 cm. The length of a longer leg is 15 cm. Find the area of the tr
    13·1 answer
  • Write the equation for g(x).
    5·1 answer
  • bob is twice as old as alice at the moment in 4 years time their total age they will be 71 what is alice's age now?
    5·1 answer
  • Help please due in 20 minutes I will mark brainliest
    13·1 answer
  • A caterer made 4 grilled cheese sandwiches, 7 ham sandwiches, and 6 turkey sandwiches. How many sandwiches did the caterer make
    6·2 answers
  • I need help pleaseee
    15·2 answers
  • Two lines, a and b, are parallel. If both of the lines aee rotated 90⁰ in the same direction and then translated to the right by
    14·1 answer
  • In the accompanying diagram...
    13·2 answers
  • Help pls this is for my math test.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!