4 years ago

Match the exponential expression with its rule:

Mathematics

1 answer:

mina [271]4 years ago

6 0

1.=d
2.=a
5.=b
4.=e
3.=c

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In which equation x is = to 180<br> (A) x/49=7 (B) x/12-7 =13 (C) x/3-15=45

topjm [15]

The answers is C. because when you do 180/3-15 you get 45 as the answer.

7 0

3 years ago

Seven less than the product of 24 and Jose’s savings

Liono4ka [1.6K]

Answer:

$24j -7$

Step-by-step explanation:

Given

$Savings \to$ j

Required

Express 7 less than 24 * j

First, we have:

$24 * j = 24j$

7 less is then expressed as:

$24j -7$

6 0

3 years ago

Find the slope of the line that passes through Point A $$(−5,7) and Point B $$(2,5), using the formula $$m=

tester [92]

Answer:

slope = - $\frac{2}{7}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 5, 7 ) and (x₂, y₂ ) = (2, 5 )

m = $\frac{5-7}{2-(-5)}$ = $\frac{-2}{2+5}$ = - $\frac{2}{7}$

8 0

2 years ago

Using the completing-the-square method, rewrite f(x) = x2 - 6x + 2 in vertex form.<br>

sp2606 [1]

Answer:

$\large\boxed{f(x)+(x-3)^2-7}$

Step-by-step explanation:

$\text{The vertex form of equation}\ y=ax^2+bx+c:\\\\y=a(x-h)^2+k\\\\\text{We have the equation:}\\\\f(x)=x^2-6x+2=x^2-2(x)(3)+1=x^2-2(x)(3)+3^2-3^2+2\\\\\text{Use}\ (a-b)^2=a^2-2ab+b^2\to x^2-2(x)(3)+3^2=(x-3)^2\\\\f(x)=(x-3)^2-9+2=(x-3)^2-7$

8 0

3 years ago

8. The angle measures of a triangle are shown in the diagram. What is the value of x? A. 20 B. 15. C. 32 D. 40 I WILL GIVE BRAIN

AfilCa [17]

Answer:

D) 40

Step-by-step explanation:

triangles equal to 180 degrees

2x+10+x+50=180

3x+60=180

3x=120

x=40

7 0

1 year ago