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3 years ago

11

1.

2 answers:

PolarNik [594]3 years ago

8 0

Question 1:

<span>5z – 9 = 36

5z = 45

z = </span> $\frac{45}{5}$

z = 9

Hence, the answer is D.

Question 2:

<span>5(2z + 4) = 0
</span><span>
10z + 20 = 0

10z = -20

z = </span> $\frac{-20}{10}$
<span>
z = -2

Hence, the answer is A.

Question 3:

4a + 3(a + 1) = 24

4a + 3a + 3 = 24

7a = 21

a = </span> $\frac{21}{7}$

a = 3

Hence, the answer is B.

Question 4:

<span>3(4x + 5) = 12

12x + 15 = 12

12x = 12 - 15

12x = -3

x = </span> $\frac{-3}{12} = - \frac{1}{4}$

Hence, the answer is A.

Question 5:

<span>4x – 8 – 4x = 9

-8 </span>≠ 9

Hence, the answer is A.

marshall27 [118]3 years ago

5 0

Ugh oh..sorry..First time user.. answer one 9. Answer three. 3

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Anastaziya [24]

answer

$-3x^{2} +6x + 24$

explanation

since there are 2 x-intercepts, the lowest degree the function could possibly have is 2, so this could be the graph of a parabola

since our zeros are at x = 4 and x = -2, our factors are (x - 4) and (x + 2)

our equation so far is

(x - 4)(x + 2)

= $x^2 -4x + 2x - 8$

= $x^{2} -2x - 8$

since the function is reflected across the x-axis, multiply the equation by -1

$-(x^{2} -2x - 8)$

= $-x^{2} +2x + 8$

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3 0

3 years ago

Find the measure of UT answer choice - 65 51 70 55

muminat

Answer:

Option (4)

Step-by-step explanation:

If two chords intersect outside the circle, angle formed between the chords will be half of the sum of measures of intercepted arcs.

From the given picture,

$m(\angle RQS)=\frac{1}{2}(m\hat{RS}+m\hat{UT})$

95° = $\frac{1}{2}(135+m\hat{UT})$

190 = 135 + $m(\hat{UT})$

$m(\hat{UT})=190-135$

$m(\hat{UT})$ = 55°

Therefore, option (4) will be the correct option.

6 0

3 years ago