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Stells [14]
3 years ago
10

Math help pls thank u

Mathematics
1 answer:
ELEN [110]3 years ago
6 0
(8) =b

explaintion is : 3 seven times is 21
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Is the sum of 1/2 and radical 5 over 15 rational or irrational
Lina20 [59]

Answer:

rational, irrational is like pi or \sqrt{-7}

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the height of a right square pyramid that has a rectangular base area of 70 square units and a volume of 140 cubic units.
Lostsunrise [7]

Answer:

B. 6 units

Step-by-step explanation:

V =  {a}^{2} \frac{h}{3} \\  \\ 140  = 70( \frac{h}{3}) \\  \\ 6 = h \\  \\ 140 = 70(2)

I am joyous to assist you anytime.

5 0
3 years ago
if the vertex of a parabola is (-4,6) and another point on the curve is (-3,14), what is the coefficient of the squared expressi
Softa [21]

Answer:

8

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, 6 ), thus

y = a(x + 4)² + 6

To find a substitute (- 3, 14) into the equation

14 = a(- 3 + 4)² + 6 ( subtract 6 from both sides )

8 = a

Thus the coefficient of the x² term is a = 8

3 0
3 years ago
Can some help me with this! Will Mark brainliest ❤️
Serhud [2]
If TU is 7.5 and UC is 17.5, TV = 25 because you just add the two together

3 0
3 years ago
Help please<br><br> 2 (2b + 8)<br><br> b = 2
Bess [88]

Answer:

24

Step-by-step explanation:

2(2x2+8)

2(4+8)

2(12)

24

7 0
3 years ago
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